Version 0.2.1

README.md

@@ -13,6 +13,8 @@ example, mobile devices with limited storage available, wishing to access a sync
 
 This project is based on [syncthing-java][3], a java implementation of Syncthing protocols.
 
+
+[<img alt="Get it on F-Droid" src="https://f-droid.org/badge/get-it-on.png" height="80">](https://f-droid.org/packages/net.syncthing.lite/)
 [<img alt="Get it on Google Play" src="https://play.google.com/intl/en_us/badges/images/generic/en_badge_web_generic.png" height="80">](https://play.google.com/store/apps/details?id=net.syncthing.lite)
 
 ## Translations

app/build.gradle

@@ -9,10 +9,10 @@ android {
     dataBinding.enabled = true
     defaultConfig {
         applicationId "net.syncthing.lite"
-        minSdkVersion 19
+        minSdkVersion 21
         targetSdkVersion 25
-        versionCode 6
-        versionName "0.1.4"
+        versionCode 9
+        versionName "0.2.1"
         multiDexEnabled true
     }
     sourceSets {
@@ -38,6 +38,9 @@ android {
             signingConfig signingConfigs.release
         }
     }
+    packagingOptions {
+        exclude 'META-INF/*'
+    }
 }
 
 dependencies {
@@ -45,10 +48,10 @@ dependencies {
     implementation "org.jetbrains.anko:anko-commons:$anko_version"
     implementation "org.jetbrains.anko:anko-coroutines:$anko_version"
     kapt "com.android.databinding:compiler:$build_tools_version"
-    implementation "com.android.support:appcompat-v7:$support_version"
     implementation "com.android.support:design:$support_version"
-    implementation "com.android.support:cardview-v7:$support_version"
-    implementation ("com.github.Nutomic:syncthing-java:0.1.4") {
+    implementation "com.android.support:preference-v14:$support_version"
+    kapt "com.android.databinding:library:1.3.3"
+    implementation ("com.github.Nutomic:syncthing-java:0.2.1") {
         exclude group: 'commons-logging', module:'commons-logging'
         exclude group: 'org.apache.httpcomponents', module:'httpclient'
         exclude group: 'org.slf4j'
@@ -59,7 +62,6 @@ dependencies {
     implementation 'org.apache.httpcomponents:httpclient-android:4.3.5.1'
     implementation 'sk.baka.slf4j:slf4j-handroid:1.7.26'
     implementation 'com.google.zxing:android-integration:3.3.0'
-    implementation ('uk.co.markormesher:android-fab:2.0.0') {
-        exclude group: "org.jetbrains.kotlin"
-    }
+    implementation 'com.google.zxing:core:3.3.0'
+    implementation 'com.github.apl-devs:appintro:v4.2.3'
 }

app/lint.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<lint>
+    <issue id="MissingTranslation" severity="ignore" />
+
+	<issue id="GoogleAppIndexingWarning" severity="ignore" />
+
+	<issue id="InvalidPackage" severity="ignore" />
+
+	<issue id="OldTargetApi" severity="ignore" />
+</lint>

app/src/main/AndroidManifest.xml

@@ -2,7 +2,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="net.syncthing.lite">
 
     <uses-permission android:name="android.permission.INTERNET"/>
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 
     <application
         android:allowBackup="true"
@@ -18,10 +17,10 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".activities.IntroActivity"
+            android:theme="@style/Theme.Syncthing.NoActionBar"/>
         <activity android:name=".activities.FolderBrowserActivity"
             android:parentActivityName=".activities.MainActivity"/>
-        <activity android:name=".activities.FilePickerActivity"
-            android:parentActivityName=".activities.FolderBrowserActivity" />
         <provider
             android:name="android.support.v4.content.FileProvider"
             android:authorities="net.syncthing.lite.fileprovider"
@@ -31,7 +30,16 @@
                 android:name="android.support.FILE_PROVIDER_PATHS"
                 android:resource="@xml/filepaths" />
         </provider>
-
+        <provider
+            android:name=".library.SyncthingProvider"
+            android:authorities="net.syncthing.lite.documents"
+            android:grantUriPermissions="true"
+            android:exported="true"
+            android:permission="android.permission.MANAGE_DOCUMENTS">
+            <intent-filter>
+                <action android:name="android.content.action.DOCUMENTS_PROVIDER" />
+            </intent-filter>
+        </provider>
     </application>
 
 </manifest>

app/src/main/kotlin/net/syncthing/lite/activities/FilePickerActivity.kt

@@ -1,101 +0,0 @@
-package net.syncthing.lite.activities
-
-import android.app.Activity
-import android.content.Context
-import android.content.Intent
-import android.net.Uri
-import android.os.Bundle
-import android.os.Environment
-import android.view.View
-import android.view.ViewGroup
-import android.widget.AdapterView
-import android.widget.ArrayAdapter
-import android.widget.ListView
-import android.widget.TextView
-import net.syncthing.lite.R
-import java.io.File
-import java.util.*
-
-/**
- * Activity that allows selecting a directory in the local file system.
- */
-class FilePickerActivity : SyncthingActivity(), AdapterView.OnItemClickListener {
-
-    private lateinit var mListView: ListView
-    private lateinit var mFilesAdapter: FileAdapter
-    private lateinit var mLocation: File
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-
-        setContentView(R.layout.activity_folder_picker)
-        mListView = findViewById(android.R.id.list)
-        mListView.onItemClickListener = this
-        mListView.emptyView = findViewById(android.R.id.empty)
-        mFilesAdapter = FileAdapter(this)
-        mListView.adapter = mFilesAdapter
-
-        displayFolder(Environment.getExternalStorageDirectory())
-    }
-
-    /**
-     * Refreshes the ListView to show the contents of the location in ``mLocation.peek()}.
-     */
-    private fun displayFolder(location: File) {
-        mLocation = location
-        mFilesAdapter.clear()
-        // In case we don't have read access to the location, just display nothing.
-        val contents = location.listFiles() ?: arrayOf()
-
-        Arrays.sort(contents) { f1, f2 ->
-            if (f1.isDirectory && f2.isFile)
-                return@sort -1
-            if (f1.isFile && f2.isDirectory)
-                return@sort 1
-            f1.name.compareTo(f2.name)
-        }
-
-        for (f in contents) {
-            mFilesAdapter.add(f)
-        }
-        mListView.adapter = mFilesAdapter
-    }
-
-    override fun onItemClick(adapterView: AdapterView<*>, view: View, i: Int, l: Long) {
-        val f = mFilesAdapter.getItem(i)
-        if (f!!.isDirectory) {
-            displayFolder(f)
-        } else {
-            val intent = Intent()
-            intent.data = Uri.fromFile(f)
-            setResult(Activity.RESULT_OK, intent)
-            finish()
-        }
-    }
-
-    private inner class FileAdapter(context: Context) : ArrayAdapter<File>(context, R.layout.item_folder_picker) {
-
-        override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
-            val view = super.getView(position, convertView, parent)
-            val title = view.findViewById<TextView>(android.R.id.text1)
-            val f = getItem(position)!!
-            title.text = f.name
-            val icon =
-                    if (f.isDirectory) R.drawable.ic_folder_black_24dp
-                    else               R.drawable.ic_image_black_24dp
-            title.setCompoundDrawablesWithIntrinsicBounds(icon, 0, 0, 0)
-
-            return view
-        }
-    }
-
-    override fun onBackPressed() {
-        if (mLocation != Environment.getExternalStorageDirectory()) {
-            displayFolder(mLocation.parentFile)
-        } else {
-            setResult(Activity.RESULT_CANCELED)
-            finish()
-        }
-    }
-
-}

app/src/main/kotlin/net/syncthing/lite/activities/FolderBrowserActivity.kt

@@ -1,41 +1,34 @@
 package net.syncthing.lite.activities
 
-import android.Manifest
 import android.app.Activity
 import android.content.Intent
-import android.content.pm.PackageManager
 import android.databinding.DataBindingUtil
 import android.os.Bundle
-import android.support.v4.app.ActivityCompat
-import android.support.v4.content.ContextCompat
 import android.util.Log
 import android.view.View
-import android.widget.Toast
 import net.syncthing.java.bep.IndexBrowser
 import net.syncthing.java.core.beans.FileInfo
+import net.syncthing.java.core.beans.FolderInfo
 import net.syncthing.java.core.utils.PathUtils
 import net.syncthing.lite.R
 import net.syncthing.lite.adapters.FolderContentsAdapter
 import net.syncthing.lite.databinding.ActivityFolderBrowserBinding
-import net.syncthing.lite.library.DownloadFileTask
-import net.syncthing.lite.library.UploadFileTask
-import org.jetbrains.anko.intentFor
+import net.syncthing.lite.dialogs.FileDownloadDialog
+import net.syncthing.lite.dialogs.FileUploadDialog
 
 class FolderBrowserActivity : SyncthingActivity() {
 
     companion object {
 
-        private val TAG = "FolderBrowserActivity"
-        private val REQUEST_WRITE_STORAGE = 142
-        private val REQUEST_SELECT_UPLOAD_FILE = 171
+        private const val TAG = "FolderBrowserActivity"
+        private const val REQUEST_SELECT_UPLOAD_FILE = 171
 
-        val EXTRA_FOLDER_NAME = "folder_name"
+        const val EXTRA_FOLDER_NAME = "folder_name"
     }
 
     private lateinit var binding: ActivityFolderBrowserBinding
     private lateinit var indexBrowser: IndexBrowser
     private lateinit var adapter: FolderContentsAdapter
-    private var runWhenPermissionsReceived: Runnable? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -71,9 +64,9 @@ class FolderBrowserActivity : SyncthingActivity() {
     override fun onActivityResult(requestCode: Int, resultCode: Int, intent: Intent?) {
         if (requestCode == REQUEST_SELECT_UPLOAD_FILE && resultCode == Activity.RESULT_OK) {
             libraryHandler?.syncthingClient { syncthingClient ->
-                UploadFileTask(this@FolderBrowserActivity, syncthingClient, intent!!.data,
+                FileUploadDialog(this@FolderBrowserActivity, syncthingClient, intent!!.data,
                         indexBrowser.folder, indexBrowser.currentPath,
-                        this@FolderBrowserActivity::showUploadHereDialog).uploadFile()
+                        { showFolderListView(indexBrowser.currentPath) }).show()
             }
         }
     }
@@ -95,8 +88,7 @@ class FolderBrowserActivity : SyncthingActivity() {
                 binding.progressBar.visibility = View.VISIBLE
             } else {
                 Log.i(TAG, "pulling file = " + fileInfo)
-                executeWithPermissions(
-                        Runnable { libraryHandler?.syncthingClient { DownloadFileTask(this, it, fileInfo).downloadFile() } })
+                libraryHandler?.syncthingClient { FileDownloadDialog(this, it, fileInfo).show() }
             }
         }
     }
@@ -127,48 +119,14 @@ class FolderBrowserActivity : SyncthingActivity() {
     }
 
     private fun showUploadHereDialog() {
-        executeWithPermissions(Runnable {
-            startActivityForResult(intentFor<FilePickerActivity>(), REQUEST_SELECT_UPLOAD_FILE)
-        })
+        val intent = Intent(Intent.ACTION_OPEN_DOCUMENT)
+        intent.addCategory(Intent.CATEGORY_OPENABLE)
+        intent.type = "*/*"
+        startActivityForResult(intent, REQUEST_SELECT_UPLOAD_FILE)
     }
 
-    override fun onIndexUpdateProgress(folder: String, percentage: Int) {
-        binding.indexUpdate.visibility = View.VISIBLE
-        binding.indexUpdateLabel.text = getString(R.string.index_update_progress_label, folder, percentage)
+    override fun onIndexUpdateComplete(folderInfo: FolderInfo) {
+        super.onIndexUpdateComplete(folderInfo)
         updateFolderListView()
     }
-
-    override fun onIndexUpdateComplete() {
-        binding.indexUpdate.visibility = View.GONE
-        updateFolderListView()
-    }
-
-    private fun executeWithPermissions(runnable: Runnable) {
-        val permissionState = ContextCompat.checkSelfPermission(this,
-                Manifest.permission.WRITE_EXTERNAL_STORAGE)
-        if (permissionState != PackageManager.PERMISSION_GRANTED) {
-            ActivityCompat.requestPermissions(this,
-                    arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE),
-                    REQUEST_WRITE_STORAGE)
-            runWhenPermissionsReceived = runnable
-        } else {
-            runnable.run()
-        }
-    }
-
-    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>,
-                                            grantResults: IntArray) {
-        when (requestCode) {
-            REQUEST_WRITE_STORAGE -> {
-                if (grantResults.isEmpty() || grantResults[0] != PackageManager.PERMISSION_GRANTED) {
-                    Toast.makeText(this, R.string.toast_write_storage_permission_required,
-                            Toast.LENGTH_LONG).show()
-                } else {
-                    runWhenPermissionsReceived!!.run()
-                }
-                runWhenPermissionsReceived = null
-            }
-            else -> super.onRequestPermissionsResult(requestCode, permissions, grantResults)
-        }
-    }
 }

app/src/main/kotlin/net/syncthing/lite/activities/IntroActivity.kt

@@ -0,0 +1,157 @@
+package net.syncthing.lite.activities
+
+import android.content.Intent
+import android.databinding.DataBindingUtil
+import android.os.Bundle
+import android.support.v4.app.Fragment
+import android.support.v4.content.ContextCompat
+import android.text.Html
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import com.github.paolorotolo.appintro.AppIntro
+import com.google.zxing.integration.android.IntentIntegrator
+import net.syncthing.java.core.beans.DeviceId
+import net.syncthing.lite.R
+import net.syncthing.lite.databinding.FragmentIntroOneBinding
+import net.syncthing.lite.databinding.FragmentIntroThreeBinding
+import net.syncthing.lite.databinding.FragmentIntroTwoBinding
+import net.syncthing.lite.fragments.SyncthingFragment
+import net.syncthing.lite.utils.FragmentIntentIntegrator
+import net.syncthing.lite.utils.Util
+import org.jetbrains.anko.defaultSharedPreferences
+import org.jetbrains.anko.intentFor
+import java.io.IOException
+
+/**
+ * Shown when a user first starts the app. Shows some info and helps the user to add their first
+ * device and folder.
+ */
+class IntroActivity : AppIntro() {
+
+    /**
+     * Initialize fragments and library parameters.
+     */
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        // Disable continue button on second slide until a valid device ID is entered.
+        nextButton.setOnClickListener {
+            val fragment = fragments[pager.currentItem]
+            if (fragment !is IntroFragmentTwo || fragment.isDeviceIdValid()) {
+                pager.goToNextSlide()
+            }
+        }
+
+        addSlide(IntroFragmentOne())
+        addSlide(IntroFragmentTwo())
+        addSlide(IntroFragmentThree())
+
+        setSeparatorColor(ContextCompat.getColor(this, android.R.color.primary_text_dark))
+        showSkipButton(true)
+        isProgressButtonEnabled = true
+        pager.isPagingEnabled = false
+    }
+
+    override fun onSkipPressed(currentFragment: Fragment) {
+        onDonePressed(currentFragment)
+    }
+
+    override fun onDonePressed(currentFragment: Fragment) {
+        defaultSharedPreferences.edit().putBoolean(MainActivity.PREF_IS_FIRST_START, false).apply()
+        startActivity(intentFor<MainActivity>())
+        finish()
+    }
+
+    /**
+     * Display some simple welcome text.
+     */
+    class IntroFragmentOne : SyncthingFragment() {
+
+        override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
+            return DataBindingUtil.inflate<FragmentIntroOneBinding>(
+                    inflater, R.layout.fragment_intro_one, container, false).root
+        }
+
+        override fun onLibraryLoaded() {
+            super.onLibraryLoaded()
+            context?.let { SyncthingActivity.checkLocalDiscoveryPort(it) }
+            libraryHandler?.configuration { config ->
+                config.localDeviceName = Util.getDeviceName()
+                config.persistLater()
+            }
+        }
+    }
+
+    /**
+     * Display device ID entry field and QR scanner option.
+     */
+    class IntroFragmentTwo : SyncthingFragment() {
+
+        private lateinit var binding: FragmentIntroTwoBinding
+
+        override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
+            binding = DataBindingUtil.inflate(inflater, R.layout.fragment_intro_two, container, false)
+            binding.enterDeviceId!!.scanQrCode.setOnClickListener {
+                FragmentIntentIntegrator(this@IntroFragmentTwo).initiateScan()
+            }
+            binding.enterDeviceId!!.scanQrCode.setImageResource(R.drawable.ic_qr_code_white_24dp)
+            return binding.root
+        }
+
+        override fun onActivityResult(requestCode: Int, resultCode: Int, intent: Intent?) {
+            val scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent)
+            if (scanResult?.contents != null && scanResult.contents.isNotBlank()) {
+                binding.enterDeviceId!!.deviceId.setText(scanResult.contents)
+                binding.enterDeviceId!!.deviceIdHolder.isErrorEnabled = false
+            }
+        }
+
+        /**
+         * Checks if the entered device ID is valid. If yes, imports it and returns true. If not,
+         * sets an error on the textview and returns false.
+         */
+        fun isDeviceIdValid(): Boolean {
+            return try {
+                val deviceId = binding.enterDeviceId!!.deviceId.text.toString()
+                Util.importDeviceId(libraryHandler, context, deviceId, { })
+                true
+            } catch (e: IOException) {
+                binding.enterDeviceId!!.deviceId.error = getString(R.string.invalid_device_id)
+                false
+            }
+        }
+    }
+
+    /**
+     * Waits until remote device connects with new folder.
+     */
+    class IntroFragmentThree : SyncthingFragment() {
+
+        private lateinit var binding: FragmentIntroThreeBinding
+
+        override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
+            binding = DataBindingUtil.inflate(inflater, R.layout.fragment_intro_three, container, false)
+            return binding.root
+        }
+
+        override fun onLibraryLoaded() {
+            super.onLibraryLoaded()
+            libraryHandler?.library { config, client, _ ->
+                client.addOnConnectionChangedListener(this::onConnectionChanged)
+                val deviceId = config.localDeviceId.deviceId
+                val desc = activity?.getString(R.string.intro_page_three_description, "<b>$deviceId</b>")
+                binding.description.text = Html.fromHtml(desc)
+            }
+        }
+
+        private fun onConnectionChanged(deviceId: DeviceId) {
+            libraryHandler?.library { config, client, _ ->
+                if (config.folders.isNotEmpty()) {
+                    client.removeOnConnectionChangedListener(this::onConnectionChanged)
+                    (activity as IntroActivity?)?.onDonePressed(this)
+                }
+            }
+        }
+    }
+}

app/src/main/kotlin/net/syncthing/lite/activities/MainActivity.kt

@@ -4,28 +4,38 @@ import android.app.AlertDialog
 import android.content.res.Configuration
 import android.databinding.DataBindingUtil
 import android.os.Bundle
+import android.support.v4.app.Fragment
 import android.support.v7.app.ActionBarDrawerToggle
 import android.view.Gravity
 import android.view.MenuItem
-import android.view.View
 import kotlinx.coroutines.experimental.android.UI
 import kotlinx.coroutines.experimental.async
 import net.syncthing.lite.R
 import net.syncthing.lite.databinding.ActivityMainBinding
+import net.syncthing.lite.dialogs.DeviceIdDialog
 import net.syncthing.lite.fragments.DevicesFragment
 import net.syncthing.lite.fragments.FoldersFragment
-import net.syncthing.lite.fragments.SyncthingFragment
-import net.syncthing.lite.library.UpdateIndexTask
+import net.syncthing.lite.fragments.SettingsFragment
+import org.jetbrains.anko.defaultSharedPreferences
+import org.jetbrains.anko.intentFor
 
 class MainActivity : SyncthingActivity() {
 
+    companion object {
+        const val PREF_IS_FIRST_START = "net.syncthing.lite.activities.MainActivity.IS_FIRST_START"
+    }
+
     private lateinit var binding: ActivityMainBinding
     private var drawerToggle: ActionBarDrawerToggle? = null
-    private var currentFragment: SyncthingFragment? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        if (defaultSharedPreferences.getBoolean(PREF_IS_FIRST_START, true)) {
+            startActivity(intentFor<IntroActivity>())
+            finish()
+        }
+
         binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
 
         drawerToggle = ActionBarDrawerToggle(
@@ -69,7 +79,10 @@ class MainActivity : SyncthingActivity() {
         when (menuItem.itemId) {
             R.id.folders -> setContentFragment(FoldersFragment())
             R.id.devices -> setContentFragment(DevicesFragment())
-            R.id.update_index -> libraryHandler?.syncthingClient { UpdateIndexTask(this@MainActivity, it).updateIndex() }
+            R.id.settings -> setContentFragment(SettingsFragment())
+            R.id.device_id -> libraryHandler?.configuration { config ->
+                DeviceIdDialog(this, config.localDeviceId).show()
+            }
             R.id.clear_index -> AlertDialog.Builder(this)
                     .setTitle(getString(R.string.clear_cache_and_index_title))
                     .setMessage(getString(R.string.clear_cache_and_index_body))
@@ -82,8 +95,7 @@ class MainActivity : SyncthingActivity() {
         return true
     }
 
-    private fun setContentFragment(fragment: SyncthingFragment) {
-        currentFragment = fragment
+    private fun setContentFragment(fragment: Fragment) {
         supportFragmentManager
                 .beginTransaction()
                 .replace(R.id.content_frame, fragment)
@@ -96,17 +108,4 @@ class MainActivity : SyncthingActivity() {
             recreate()
         }
     }
-
-    override fun onIndexUpdateProgress(folder: String, percentage: Int) {
-        async(UI) {
-            binding.indexUpdate.visibility = View.VISIBLE
-            binding.indexUpdateLabel.text = getString(R.string.index_update_progress_label, folder, percentage)
-        }
-    }
-
-    override fun onIndexUpdateComplete() {
-        async(UI) {
-            binding.indexUpdate.visibility = View.GONE
-        }
-    }
 }

app/src/main/kotlin/net/syncthing/lite/activities/SyncthingActivity.kt

@@ -1,21 +1,38 @@
 package net.syncthing.lite.activities
 
 import android.app.AlertDialog
+import android.content.Context
 import android.databinding.DataBindingUtil
 import android.os.Bundle
+import android.support.design.widget.Snackbar
 import android.support.v7.app.AppCompatActivity
 import android.view.LayoutInflater
+import net.syncthing.java.core.beans.FolderInfo
 import net.syncthing.lite.BuildConfig
 import net.syncthing.lite.R
 import net.syncthing.lite.databinding.DialogLoadingBinding
 import net.syncthing.lite.library.LibraryHandler
+import org.jetbrains.anko.contentView
 import org.slf4j.impl.HandroidLoggerAdapter
 
 abstract class SyncthingActivity : AppCompatActivity() {
 
+    companion object {
+        fun checkLocalDiscoveryPort(context: Context) {
+            if (LibraryHandler.isListeningPortTaken) {
+                AlertDialog.Builder(context)
+                        .setTitle(R.string.other_syncthing_instance_title)
+                        .setMessage(R.string.other_syncthing_instance_message)
+                        .setPositiveButton(android.R.string.ok, null)
+                        .show()
+            }
+        }
+    }
+
     var libraryHandler: LibraryHandler? = null
         private set
     private var loadingDialog: AlertDialog? = null
+    private var snackBar: Snackbar? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -46,9 +63,20 @@ abstract class SyncthingActivity : AppCompatActivity() {
         onLibraryLoaded()
     }
 
-    open fun onIndexUpdateProgress(folder: String, percentage: Int) {}
+    open fun onIndexUpdateProgress(folderInfo: FolderInfo, percentage: Int) {
+        val message = getString(R.string.index_update_progress_label, folderInfo.label, percentage)
+        snackBar?.setText(message) ?: run {
+            snackBar = Snackbar.make(contentView!!, message, Snackbar.LENGTH_INDEFINITE)
+            snackBar?.show()
+        }
+    }
 
-    open fun onIndexUpdateComplete() {}
+    open fun onIndexUpdateComplete(folderInfo: FolderInfo) {
+        snackBar?.dismiss()
+        snackBar = null
+    }
 
-    open fun onLibraryLoaded() {}
+    open fun onLibraryLoaded() {
+        checkLocalDiscoveryPort(this)
+    }
 }

app/src/main/kotlin/net/syncthing/lite/adapters/DevicesAdapter.kt

@@ -6,12 +6,12 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.ArrayAdapter
-import net.syncthing.java.core.beans.DeviceStats
+import net.syncthing.java.core.beans.DeviceInfo
 import net.syncthing.lite.R
 import net.syncthing.lite.databinding.ListviewDeviceBinding
 
 class DevicesAdapter(context: Context) :
-        ArrayAdapter<DeviceStats>(context, R.layout.listview_device, mutableListOf()) {
+        ArrayAdapter<DeviceInfo>(context, R.layout.listview_device, mutableListOf()) {
 
     override fun getView(position: Int, v: View?, parent: ViewGroup): View {
         val binding: ListviewDeviceBinding
@@ -23,10 +23,10 @@ class DevicesAdapter(context: Context) :
         val deviceStats = getItem(position)
         binding.deviceName.text = deviceStats!!.name
         val icon =
-            when (deviceStats.status) {
-                DeviceStats.DeviceStatus.OFFLINE -> R.drawable.ic_laptop_red_24dp
-                DeviceStats.DeviceStatus.ONLINE_INACTIVE,
-                DeviceStats.DeviceStatus.ONLINE_ACTIVE -> R.drawable.ic_laptop_green_24dp
+            if (deviceStats.isConnected!!) {
+                R.drawable.ic_laptop_green_24dp
+            } else {
+                R.drawable.ic_laptop_red_24dp
             }
         binding.deviceIcon.setImageResource(icon)
         return binding.root

app/src/main/kotlin/net/syncthing/lite/adapters/FoldersListAdapter.kt

@@ -11,7 +11,6 @@ import net.syncthing.java.core.beans.FolderInfo
 import net.syncthing.java.core.beans.FolderStats
 import net.syncthing.lite.R
 import net.syncthing.lite.databinding.ListviewFolderBinding
-import org.apache.commons.lang3.tuple.Pair
 
 class FoldersListAdapter(context: Context?, list: List<Pair<FolderInfo, FolderStats>>) :
         ArrayAdapter<Pair<FolderInfo, FolderStats>>(context, R.layout.listview_folder, list) {
@@ -23,14 +22,11 @@ class FoldersListAdapter(context: Context?, list: List<Pair<FolderInfo, FolderSt
             } else {
                 DataBindingUtil.bind(v)
             }
-        val folderInfo = getItem(position)!!.left
-        val folderStats = getItem(position)!!.right
-        binding.folderName.text = context.getString(R.string.folder_label_format, folderInfo.label, folderInfo.folder)
+        val folderInfo = getItem(position)!!.first
+        val folderStats = getItem(position)!!.second
+        binding.folderName.text = context.getString(R.string.folder_label_format, folderInfo.label, folderInfo.folderId)
 
-        binding.folderLastmodInfo.text =
-                if (folderStats.lastUpdate == null)
-                    context.getString(R.string.last_modified_unknown)
-                else context.getString(R.string.last_modified_time,
+        binding.folderLastmodInfo.text = context.getString(R.string.last_modified_time,
                         DateUtils.getRelativeDateTimeString(context, folderStats.lastUpdate.time, DateUtils.MINUTE_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, 0))
         binding.folderContentInfo.text = context.getString(R.string.folder_content_info, folderStats.describeSize(), folderStats.fileCount, folderStats.dirCount)
         return binding.root

app/src/main/kotlin/net/syncthing/lite/dialogs/DeviceIdDialog.kt

@@ -0,0 +1,92 @@
+package net.syncthing.lite.dialogs
+
+import android.app.AlertDialog
+import android.content.ClipData
+import android.content.ClipboardManager
+import android.content.Context
+import android.content.Intent
+import android.databinding.DataBindingUtil
+import android.graphics.Bitmap
+import android.graphics.Color
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.widget.Toast
+import com.google.zxing.BarcodeFormat
+import com.google.zxing.WriterException
+import com.google.zxing.qrcode.QRCodeWriter
+import kotlinx.coroutines.experimental.android.UI
+import kotlinx.coroutines.experimental.async
+import net.syncthing.java.core.beans.DeviceId
+import net.syncthing.lite.R
+import net.syncthing.lite.databinding.DialogDeviceIdBinding
+import org.jetbrains.anko.doAsync
+
+
+class DeviceIdDialog(private val context: Context, private val deviceId: DeviceId) {
+
+    private val Tag = "DeviceIdDialog"
+
+    private val binding = DataBindingUtil.inflate<DialogDeviceIdBinding>(
+            LayoutInflater.from(context), R.layout.dialog_device_id, null, false)
+
+    fun show() {
+        generateQrCode()
+        binding.deviceId.text = deviceId.deviceId
+        // Make QR code/progress bar views rectangular based on match_parent height.
+        binding.progressBar.post {
+            binding.progressBar.minimumHeight = binding.progressBar.width
+            binding.qrCode.minimumHeight = binding.progressBar.width
+        }
+        binding.deviceId.setOnClickListener({ copyDeviceId() })
+        binding.share.setOnClickListener {  }
+        binding.share.setOnClickListener({ shareDeviceId() })
+
+        val qrCodeDialog = AlertDialog.Builder(context)
+                .setTitle(context.getString(R.string.device_id))
+                .setView(binding.root)
+                .setPositiveButton(android.R.string.ok, null)
+                .create()
+
+        qrCodeDialog.show()
+    }
+
+    private fun generateQrCode() {
+        doAsync {
+            val writer = QRCodeWriter()
+            try {
+                val bitMatrix = writer.encode(deviceId.deviceId, BarcodeFormat.QR_CODE, 512, 512)
+                val width = bitMatrix.width
+                val height = bitMatrix.height
+                val bmp = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565)
+                for (x in 0 until width) {
+                    for (y in 0 until height) {
+                        bmp.setPixel(x, y, if (bitMatrix.get(x, y)) Color.BLACK else Color.WHITE)
+                    }
+                }
+                async(UI) {
+                    binding.progressBar.visibility = View.GONE
+                    binding.qrCode.visibility = View.VISIBLE
+                    binding.qrCode.setImageBitmap(bmp)
+                }
+            } catch (e: WriterException) {
+                Log.w(Tag, e)
+            }
+        }
+    }
+
+    private fun copyDeviceId() {
+        val clipboard = context.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
+        val clip = ClipData.newPlainText(context.getString(R.string.device_id), deviceId.deviceId)
+        clipboard.primaryClip = clip
+        Toast.makeText(context, context.getString(R.string.device_id_copied), Toast.LENGTH_SHORT)
+                .show()
+    }
+
+    private fun shareDeviceId() {
+        val shareIntent = Intent(Intent.ACTION_SEND)
+        shareIntent.type = "text/plain"
+        shareIntent.putExtra(Intent.EXTRA_TEXT, deviceId.deviceId)
+        context.startActivity(Intent.createChooser(shareIntent, context.getString(R.string.share_device_id_chooser)))
+    }
+}

app/src/main/kotlin/net/syncthing/lite/dialogs/FileDownloadDialog.kt

@@ -0,0 +1,81 @@
+package net.syncthing.lite.dialogs
+
+import android.app.ProgressDialog
+import android.content.ActivityNotFoundException
+import android.content.Context
+import android.content.Intent
+import android.support.v4.content.FileProvider
+import android.util.Log
+import android.webkit.MimeTypeMap
+import kotlinx.coroutines.experimental.android.UI
+import kotlinx.coroutines.experimental.async
+import net.syncthing.java.bep.BlockPuller
+import net.syncthing.java.client.SyncthingClient
+import net.syncthing.java.core.beans.FileInfo
+import net.syncthing.lite.R
+import net.syncthing.lite.library.DownloadFileTask
+import org.apache.commons.io.FilenameUtils
+import org.jetbrains.anko.doAsync
+import org.jetbrains.anko.newTask
+import org.jetbrains.anko.toast
+import java.io.File
+
+class FileDownloadDialog(private val context: Context, private val syncthingClient: SyncthingClient,
+                         private val fileInfo: FileInfo) {
+
+    private val Tag = "FileDownloadDialog"
+    private lateinit var progressDialog: ProgressDialog
+    private var downloadFileTask: DownloadFileTask? = null
+
+    fun show() {
+        showDialog()
+        doAsync {
+            downloadFileTask = DownloadFileTask(context, syncthingClient, fileInfo,
+                    this@FileDownloadDialog::onProgress, this@FileDownloadDialog::onComplete,
+                    this@FileDownloadDialog::onError)
+        }
+    }
+
+    private fun showDialog() {
+        progressDialog = ProgressDialog(context)
+        progressDialog.setMessage(context.getString(R.string.dialog_downloading_file, fileInfo.fileName))
+        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL)
+        progressDialog.setCancelable(true)
+        progressDialog.setOnCancelListener { downloadFileTask?.cancel() }
+        progressDialog.isIndeterminate = true
+        progressDialog.show()
+    }
+
+    private fun onProgress(downloadFileTask: DownloadFileTask, fileDownloadObserver: BlockPuller.FileDownloadObserver) {
+        async(UI) {
+            progressDialog.isIndeterminate = false
+            progressDialog.max = (fileInfo.size as Long).toInt()
+            progressDialog.progress = (fileDownloadObserver.progress() * fileInfo.size!!).toInt()
+        }
+    }
+
+    private fun onComplete(file: File) {
+        async(UI) {
+            progressDialog.dismiss()
+            val mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(FilenameUtils.getExtension(file.name))
+            val intent = Intent(Intent.ACTION_VIEW)
+            val uri = FileProvider.getUriForFile(this@FileDownloadDialog.context, "net.syncthing.lite.fileprovider", file)
+            intent.setDataAndType(uri, mimeType)
+            intent.newTask()
+            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+            try {
+                this@FileDownloadDialog.context.startActivity(intent)
+            } catch (e: ActivityNotFoundException) {
+                this@FileDownloadDialog.context.toast(R.string.toast_open_file_failed)
+                Log.w(Tag, "No handler found for file " + file.name, e)
+            }
+        }
+    }
+
+    private fun onError() {
+        async(UI) {
+            progressDialog.cancel()
+            this@FileDownloadDialog.context.toast(R.string.toast_file_download_failed)
+        }
+    }
+}

app/src/main/kotlin/net/syncthing/lite/dialogs/FileUploadDialog.kt

@@ -0,0 +1,65 @@
+package net.syncthing.lite.dialogs
+
+import android.app.ProgressDialog
+import android.content.Context
+import android.net.Uri
+import kotlinx.coroutines.experimental.android.UI
+import kotlinx.coroutines.experimental.async
+import net.syncthing.java.bep.BlockPusher
+import net.syncthing.java.client.SyncthingClient
+import net.syncthing.lite.R
+import net.syncthing.lite.library.UploadFileTask
+import net.syncthing.lite.utils.Util
+import org.jetbrains.anko.doAsync
+import org.jetbrains.anko.toast
+
+class FileUploadDialog(private val context: Context, private val syncthingClient: SyncthingClient,
+                       private val localFile: Uri, private val syncthingFolder: String,
+                       private val syncthingSubFolder: String,
+                       private val onUploadCompleteListener: () -> Unit) {
+
+    private lateinit var progressDialog: ProgressDialog
+    private var uploadFileTask: UploadFileTask? = null
+
+    fun show() {
+        showDialog()
+        doAsync {
+            uploadFileTask = UploadFileTask(context, syncthingClient, localFile, syncthingFolder,
+                    syncthingSubFolder, this@FileUploadDialog::onProgress,
+                    this@FileUploadDialog::onComplete, this@FileUploadDialog::onError)
+        }
+    }
+
+    private fun showDialog() {
+        progressDialog = ProgressDialog(context)
+        progressDialog.setMessage(context.getString(R.string.dialog_uploading_file, Util.getContentFileName(context, localFile)))
+        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL)
+        progressDialog.setCancelable(true)
+        progressDialog.setOnCancelListener { uploadFileTask?.cancel() }
+        progressDialog.isIndeterminate = true
+        progressDialog.show()
+    }
+
+    private fun onProgress(observer: BlockPusher.FileUploadObserver) {
+        async(UI) {
+            progressDialog.isIndeterminate = false
+            progressDialog.progress = observer.progressPercentage()
+            progressDialog.max = 100
+        }
+    }
+
+    private fun onComplete() {
+        async(UI) {
+            progressDialog.dismiss()
+            this@FileUploadDialog.context.toast(R.string.toast_upload_complete)
+            onUploadCompleteListener()
+        }
+    }
+
+    private fun onError() {
+        async(UI) {
+            progressDialog.dismiss()
+            this@FileUploadDialog.context.toast(R.string.toast_file_upload_failed)
+        }
+    }
+}

app/src/main/kotlin/net/syncthing/lite/fragments/DevicesFragment.kt

@@ -9,38 +9,42 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.inputmethod.InputMethodManager
-import android.widget.EditText
-import android.widget.Toast
 import com.google.zxing.integration.android.IntentIntegrator
 import kotlinx.coroutines.experimental.android.UI
 import kotlinx.coroutines.experimental.async
-import net.syncthing.java.core.beans.DeviceId
-import net.syncthing.java.core.beans.DeviceInfo
-import net.syncthing.java.core.beans.DeviceStats
 import net.syncthing.lite.R
 import net.syncthing.lite.adapters.DevicesAdapter
 import net.syncthing.lite.databinding.FragmentDevicesBinding
-import net.syncthing.lite.library.UpdateIndexTask
+import net.syncthing.lite.databinding.ViewEnterDeviceIdBinding
 import net.syncthing.lite.utils.FragmentIntentIntegrator
-import org.apache.commons.lang3.StringUtils.isBlank
-import uk.co.markormesher.android_fab.SpeedDialMenuAdapter
-import uk.co.markormesher.android_fab.SpeedDialMenuItem
+import net.syncthing.lite.utils.Util
 import java.io.IOException
-import java.security.InvalidParameterException
 
 class DevicesFragment : SyncthingFragment() {
 
     private lateinit var binding: FragmentDevicesBinding
     private lateinit var adapter: DevicesAdapter
+    private var addDeviceDialog: AlertDialog? = null
+    private var addDeviceDialogBinding: ViewEnterDeviceIdBinding? = null
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
                               savedInstanceState: Bundle?): View? {
         binding = DataBindingUtil.inflate(layoutInflater, R.layout.fragment_devices, container, false)
         binding.list.emptyView = binding.empty
-        binding.fab.speedDialMenuAdapter = FabMenuAdapter()
+        binding.addDevice.setOnClickListener { showDialog() }
         return binding.root
     }
 
+    override fun onResume() {
+        super.onResume()
+        libraryHandler?.syncthingClient { it.addOnConnectionChangedListener { updateDeviceList() } }
+    }
+
+    override fun onPause() {
+        super.onPause()
+        libraryHandler?.syncthingClient { it.removeOnConnectionChangedListener{ updateDeviceList() } }
+    }
+
     override fun onLibraryLoaded() {
         initDeviceList()
         updateDeviceList()
@@ -50,12 +54,16 @@ class DevicesFragment : SyncthingFragment() {
         adapter = DevicesAdapter(context!!)
         binding.list.adapter = adapter
         binding.list.setOnItemLongClickListener { _, _, position, _ ->
-            val device = (binding.list.getItemAtPosition(position) as DeviceStats)
+            val device = adapter.getItem(position)
             AlertDialog.Builder(context)
                     .setTitle(getString(R.string.remove_device_title, device.name))
                     .setMessage(getString(R.string.remove_device_message, device.deviceId.deviceId.substring(0, 7)))
                     .setPositiveButton(android.R.string.yes) { _, _ ->
-                        libraryHandler?.configuration { it.Editor().removePeer(device.deviceId).persistLater() }
+                        libraryHandler?.configuration { config ->
+                            config.peers = config.peers.filterNot { it.deviceId == device.deviceId }.toSet()
+                            config.persistLater()
+                            updateDeviceList()
+                        }
                     }
                     .setNegativeButton(android.R.string.no, null)
                     .show()
@@ -64,80 +72,52 @@ class DevicesFragment : SyncthingFragment() {
     }
 
     private fun updateDeviceList() {
-        libraryHandler?.syncthingClient { syncthingClient ->
-            adapter.clear()
-            adapter.addAll(syncthingClient.devicesHandler.getDeviceStatsList())
-            adapter.notifyDataSetChanged()
+        async(UI) {
+            libraryHandler?.syncthingClient { syncthingClient ->
+                adapter.clear()
+                adapter.addAll(syncthingClient.getPeerStatus())
+                adapter.notifyDataSetChanged()
+            }
         }
     }
 
     override fun onActivityResult(requestCode: Int, resultCode: Int, intent: Intent?) {
-        // Check if this was a QR code scan.
         val scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent)
-        if (scanResult != null) {
-            val deviceId = scanResult.contents
-            if (!isBlank(deviceId)) {
-                importDeviceId(deviceId)
-            }
+        if (scanResult?.contents != null && scanResult.contents.isNotBlank()) {
+            addDeviceDialogBinding?.deviceId?.setText(scanResult.contents)
         }
     }
 
-    private fun importDeviceId(deviceIdString: String) {
-        libraryHandler?.library { configuration, syncthingClient, _ ->
-            async(UI) {
-                val deviceId =
-                    try {
-                        DeviceId(deviceIdString)
-                    } catch (e: IOException) {
-                        Toast.makeText(this@DevicesFragment.context, R.string.invalid_device_id, Toast.LENGTH_SHORT).show()
-                        return@async
+    private fun showDialog() {
+        addDeviceDialogBinding = DataBindingUtil.inflate(LayoutInflater.from(context), R.layout.view_enter_device_id, null, false)
+        addDeviceDialogBinding?.let { binding ->
+            binding.scanQrCode.setOnClickListener {
+                FragmentIntentIntegrator(this@DevicesFragment).initiateScan()
+            }
+            binding.deviceId.post {
+                val imm = context!!.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
+                imm.showSoftInput(binding.deviceId, InputMethodManager.SHOW_IMPLICIT)
+            }
+
+            addDeviceDialog = AlertDialog.Builder(context)
+                    .setTitle(R.string.device_id_dialog_title)
+                    .setView(binding.root)
+                    .setPositiveButton(android.R.string.ok, null)
+                    .setNegativeButton(android.R.string.cancel, null)
+                    .show()
+
+            // Use different listener to keep dialog open after button click.
+            // https://stackoverflow.com/a/15619098
+            addDeviceDialog?.getButton(AlertDialog.BUTTON_POSITIVE)
+                    ?.setOnClickListener {
+                        try {
+                            val deviceId = binding.deviceId.text.toString()
+                            Util.importDeviceId(libraryHandler, context, deviceId, { updateDeviceList() })
+                            addDeviceDialog?.dismiss()
+                        } catch (e: IOException) {
+                            binding.deviceId.error = getString(R.string.invalid_device_id)
+                        }
                     }
-
-                val modified = configuration.Editor().addPeers(DeviceInfo(deviceId, null))
-                if (modified) {
-                    configuration.Editor().persistLater()
-                    Toast.makeText(this@DevicesFragment.context, getString(R.string.device_import_success, deviceId), Toast.LENGTH_SHORT).show()
-                    updateDeviceList()//TODO remove this if event triggered (and handler trigger update)
-                    UpdateIndexTask(this@DevicesFragment.context!!, syncthingClient).updateIndex()
-                } else {
-                    Toast.makeText(this@DevicesFragment.context, getString(R.string.device_already_known, deviceId), Toast.LENGTH_SHORT).show()
-                }
-            }
-        }
-    }
-
-    private inner class FabMenuAdapter : SpeedDialMenuAdapter() {
-        override fun getCount(): Int {
-            return 2
-        }
-
-        override fun getMenuItem(context: Context, position: Int): SpeedDialMenuItem {
-            when (position) {
-                0 -> return SpeedDialMenuItem(context, R.drawable.ic_qr_code_white_24dp, R.string.scan_qr_code)
-                1 -> return SpeedDialMenuItem(context, R.drawable.ic_edit_white_24dp, R.string.enter_device_id)
-            }
-            throw InvalidParameterException()
-        }
-
-        override fun onMenuItemClick(position: Int): Boolean {
-            when (position) {
-                0 -> FragmentIntentIntegrator(this@DevicesFragment).initiateScan()
-                1 -> {
-                    val editText = EditText(context)
-                    val dialog = AlertDialog.Builder(context)
-                            .setTitle(R.string.device_id_dialog_title)
-                            .setView(editText)
-                            .setPositiveButton(android.R.string.ok) { _, _ -> importDeviceId(editText.text.toString()) }
-                            .setNegativeButton(android.R.string.cancel, null)
-                            .create()
-                    dialog.setOnShowListener {
-                        val imm = context!!.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
-                        imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT)
-                    }
-                    dialog.show()
-                }
-            }
-            return true
         }
     }
 }

app/src/main/kotlin/net/syncthing/lite/fragments/FoldersFragment.kt

@@ -6,6 +6,7 @@ import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import net.syncthing.java.core.beans.FolderInfo
 import net.syncthing.lite.R
 import net.syncthing.lite.activities.FolderBrowserActivity
 import net.syncthing.lite.adapters.FoldersListAdapter
@@ -31,15 +32,20 @@ class FoldersFragment : SyncthingFragment() {
 
     private fun showAllFoldersListView() {
         libraryHandler?.folderBrowser { folderBrowser ->
-            val list = folderBrowser.folderInfoAndStatsList().sortedBy { it.left.label }
+            val list = folderBrowser.folderInfoAndStatsList()
             Log.i(TAG, "list folders = " + list + " (" + list.size + " records)")
             val adapter = FoldersListAdapter(context, list)
             binding.list.adapter = adapter
             binding.list.setOnItemClickListener { _, _, position, _ ->
-                val folder = adapter.getItem(position)!!.left.folder
+                val folder = adapter.getItem(position)!!.first.folderId
                 val intent = context?.intentFor<FolderBrowserActivity>(FolderBrowserActivity.EXTRA_FOLDER_NAME to folder)
                 startActivity(intent)
             }
         }
     }
+
+    override fun onIndexUpdateComplete(folderInfo: FolderInfo) {
+        super.onIndexUpdateComplete(folderInfo)
+        showAllFoldersListView()
+    }
 }

app/src/main/kotlin/net/syncthing/lite/fragments/SettingsFragment.kt

@@ -0,0 +1,31 @@
+package net.syncthing.lite.fragments
+
+import android.os.Bundle
+import android.support.v7.preference.EditTextPreference
+import android.support.v7.preference.PreferenceFragmentCompat
+import net.syncthing.lite.R
+import net.syncthing.lite.activities.SyncthingActivity
+
+class SettingsFragment : PreferenceFragmentCompat() {
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        addPreferencesFromResource(R.xml.preferences)
+
+        val localDeviceName = findPreference("local_device_name") as EditTextPreference
+        val appVersion      = findPreference("app_version")
+
+        (activity as SyncthingActivity?)?.let { activity ->
+            val versionName = activity.packageManager.getPackageInfo(activity.packageName, 0)?.versionName
+            appVersion.summary = versionName
+
+            activity.libraryHandler?.configuration { localDeviceName.text = it.localDeviceName }
+            localDeviceName.setOnPreferenceChangeListener { _, _ ->
+                activity.libraryHandler?.configuration { conf ->
+                    conf.localDeviceName = localDeviceName.text
+                    conf.persistLater()
+                }
+                true
+            }
+        }
+    }
+}

app/src/main/kotlin/net/syncthing/lite/fragments/SyncthingFragment.kt

@@ -2,6 +2,7 @@ package net.syncthing.lite.fragments
 
 import android.os.Bundle
 import android.support.v4.app.Fragment
+import net.syncthing.java.core.beans.FolderInfo
 import net.syncthing.lite.library.LibraryHandler
 
 abstract class SyncthingFragment : Fragment() {
@@ -27,7 +28,7 @@ abstract class SyncthingFragment : Fragment() {
 
     open fun onLibraryLoaded() {}
 
-    open fun onIndexUpdateProgress(folder: String, percentage: Int) {}
+    open fun onIndexUpdateProgress(folderInfo: FolderInfo, percentage: Int) {}
 
-    open fun onIndexUpdateComplete() {}
+    open fun onIndexUpdateComplete(folderInfo: FolderInfo) {}
 }

app/src/main/kotlin/net/syncthing/lite/library/DownloadFileTask.kt

@@ -1,106 +1,49 @@
 package net.syncthing.lite.library
 
-import android.app.ProgressDialog
-import android.content.ActivityNotFoundException
 import android.content.Context
-import android.content.Intent
-import android.support.annotation.StringRes
-import android.support.v4.content.FileProvider
 import android.util.Log
-import android.webkit.MimeTypeMap
 import net.syncthing.java.bep.BlockPuller
 import net.syncthing.java.client.SyncthingClient
 import net.syncthing.java.core.beans.FileInfo
-import net.syncthing.lite.R
 import org.apache.commons.io.FileUtils
-import org.apache.commons.io.FilenameUtils
-import org.jetbrains.anko.doAsync
-import org.jetbrains.anko.newTask
-import org.jetbrains.anko.toast
-import org.jetbrains.anko.uiThread
 import java.io.File
 import java.io.IOException
 
-class DownloadFileTask(private val mContext: Context, private val mSyncthingClient: SyncthingClient,
-                       private val mFileInfo: FileInfo) {
+class DownloadFileTask(private val context: Context, syncthingClient: SyncthingClient,
+                       private val fileInfo: FileInfo,
+                       private val onProgress: (DownloadFileTask, BlockPuller.FileDownloadObserver) -> Unit,
+                       private val onComplete: (File) -> Unit,
+                       private val onError: () -> Unit) {
 
-    private val TAG = "DownloadFileTask"
-    private lateinit var progressDialog: ProgressDialog
-    private var cancelled = false
+    private val Tag = "DownloadFileTask"
+    private var isCancelled = false
 
-    fun downloadFile() {
-        showDialog()
-        mSyncthingClient.pullFile(mFileInfo, { observer ->
-            onProgress(observer)
+    init {
+        syncthingClient.getBlockPuller(fileInfo.folder, { blockPuller ->
+            val observer = blockPuller.pullFile(fileInfo)
+            onProgress(this, observer)
             try {
                 while (!observer.isCompleted()) {
-                    if (cancelled)
-                        return@pullFile
+                    if (isCancelled)
+                        return@getBlockPuller
 
                     observer.waitForProgressUpdate()
                     Log.i("pullFile", "download progress = " + observer.progressMessage())
-                    onProgress(observer)
+                    onProgress(this, observer)
                 }
 
-                val outputFile = File("${mContext.externalCacheDir}/${mFileInfo.folder}/${mFileInfo.path}")
+                val outputFile = File("${context.externalCacheDir}/${fileInfo.folder}/${fileInfo.path}")
                 FileUtils.copyInputStreamToFile(observer.inputStream(), outputFile)
-                Log.i(TAG, "downloaded file = " + mFileInfo.path)
+                Log.i(Tag, "Downloaded file $fileInfo")
                 onComplete(outputFile)
             } catch (e: IOException) {
-                onError(R.string.toast_file_download_failed)
-                Log.w(TAG, "Failed to download file " + mFileInfo, e)
-            } catch (e: InterruptedException) {
-                onError(R.string.toast_file_download_failed)
-                Log.w(TAG, "Failed to download file " + mFileInfo, e)
+                onError()
+                Log.w(Tag, "Failed to download file $fileInfo", e)
             }
-        }) { onError(R.string.toast_file_download_failed) }
+        }, { onError() })
     }
 
-    private fun showDialog() {
-        progressDialog = ProgressDialog(mContext)
-        progressDialog.setMessage(mContext.getString(R.string.dialog_downloading_file, mFileInfo.fileName))
-        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL)
-        progressDialog.setCancelable(true)
-        progressDialog.setOnCancelListener { cancelled = true }
-        progressDialog.isIndeterminate = true
-        progressDialog.show()
-    }
-
-    private fun onProgress(fileDownloadObserver: BlockPuller.FileDownloadObserver) {
-        doAsync {
-            uiThread {
-                progressDialog.isIndeterminate = false
-                progressDialog.max = (mFileInfo.size as Long).toInt()
-                progressDialog.progress = (fileDownloadObserver.progress() * mFileInfo.size!!).toInt()
-            }
-        }
-    }
-
-    private fun onComplete(file: File) {
-        progressDialog.dismiss()
-        if (cancelled)
-            return
-
-        val mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(FilenameUtils.getExtension(file.name))
-        val intent = Intent(Intent.ACTION_VIEW)
-        val uri = FileProvider.getUriForFile(mContext, "net.syncthing.lite.fileprovider", file)
-        intent.setDataAndType(uri, mimeType)
-        intent.newTask()
-        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-        try {
-            mContext.startActivity(intent)
-        } catch (e: ActivityNotFoundException) {
-            onError(R.string.toast_open_file_failed)
-            Log.w(TAG, "No handler found for file " + file.name, e)
-        }
-    }
-
-    private fun onError(@StringRes error: Int) {
-        doAsync {
-            uiThread {
-                progressDialog.dismiss()
-                mContext.toast(error)
-            }
-        }
+    fun cancel() {
+        isCancelled = true
     }
 }

app/src/main/kotlin/net/syncthing/lite/library/LibraryHandler.kt

@@ -2,106 +2,82 @@ package net.syncthing.lite.library
 
 import android.content.Context
 import android.os.Handler
-import android.preference.PreferenceManager
 import android.util.Log
 import kotlinx.coroutines.experimental.android.UI
 import kotlinx.coroutines.experimental.async
 import net.syncthing.java.bep.FolderBrowser
 import net.syncthing.java.client.SyncthingClient
 import net.syncthing.java.core.beans.FileInfo
+import net.syncthing.java.core.beans.FolderInfo
 import net.syncthing.java.core.beans.IndexInfo
-import net.syncthing.java.core.configuration.ConfigurationService
-import net.syncthing.java.core.security.KeystoreHandler
-import net.syncthing.lite.utils.Util
-import org.apache.commons.io.FileUtils
+import net.syncthing.java.core.configuration.Configuration
 import org.jetbrains.anko.doAsync
-import org.jetbrains.anko.uiThread
-import java.io.File
-import java.io.IOException
+import java.net.DatagramSocket
+import java.net.InetAddress
+import java.net.SocketException
 import java.util.*
 
 class LibraryHandler(context: Context, onLibraryLoaded: (LibraryHandler) -> Unit,
-                     private val onIndexUpdateProgressListener: (String, Int) -> Unit,
-                     private val onIndexUpdateCompleteListener: () -> Unit) {
+                     private val onIndexUpdateProgressListener: (FolderInfo, Int) -> Unit,
+                     private val onIndexUpdateCompleteListener: (FolderInfo) -> Unit) {
 
     companion object {
         private var instanceCount = 0
-        private var configuration: ConfigurationService? = null
+        private var configuration: Configuration? = null
         private var syncthingClient: SyncthingClient? = null
         private var folderBrowser: FolderBrowser? = null
-        private val callbacks = ArrayList<(ConfigurationService, SyncthingClient, FolderBrowser) -> Unit>()
+        private val callbacks = ArrayList<(Configuration, SyncthingClient, FolderBrowser) -> Unit>()
         private var isLoading = false
+        var isListeningPortTaken = false
     }
 
-    private val TAG = "LibConnectionHandler"
-
-    private val onIndexUpdateListener: Any
+    private val TAG = "LibraryHandler"
 
     init {
         instanceCount++
         if (configuration == null && !isLoading) {
+            isLoading = true
             doAsync {
+                checkIsListeningPortTaken()
                 init(context)
-                //trigger update if last was more than 10mins ago
-                val lastUpdateMillis = PreferenceManager.getDefaultSharedPreferences(context)
-                        .getLong(UpdateIndexTask.LAST_INDEX_UPDATE_TS_PREF, -1)
-                val lastUpdateTimeAgo = Date().time - lastUpdateMillis
-                if (lastUpdateMillis == -1L || lastUpdateTimeAgo > 10 * 60 * 1000) {
-                    Log.d(TAG, "trigger index update, last was " + Date(lastUpdateMillis))
-                    syncthingClient { UpdateIndexTask(context, it).updateIndex() }
-                }
-                uiThread {
+                async(UI) {
                     onLibraryLoaded(this@LibraryHandler)
                 }
+                isLoading = false
             }
         } else {
             onLibraryLoaded(this)
         }
 
-        onIndexUpdateListener = object : Any() {
-        }
         syncthingClient {
             it.indexHandler.registerOnIndexRecordAcquiredListener(this::onIndexRecordAcquired)
             it.indexHandler.registerOnFullIndexAcquiredListenersListener(this::onRemoteIndexAcquired)
         }
     }
 
-    private fun onIndexRecordAcquired(folderId: String, newRecords: List<FileInfo>, indexInfo: IndexInfo) {
-        newRecords.size
+    private fun onIndexRecordAcquired(folderInfo: FolderInfo, newRecords: List<FileInfo>, indexInfo: IndexInfo) {
         Log.i(TAG, "handleIndexRecordEvent trigger folder list update from index record acquired")
-        onIndexUpdateProgressListener(folderId, (indexInfo.getCompleted() * 100).toInt())
+
+        async(UI) {
+            onIndexUpdateProgressListener(folderInfo, (indexInfo.getCompleted() * 100).toInt())
+        }
     }
 
-    private fun onRemoteIndexAcquired(folderId: String) {
+    private fun onRemoteIndexAcquired(folderInfo: FolderInfo) {
         Log.i(TAG, "handleIndexAcquiredEvent trigger folder list update from index acquired")
-        onIndexUpdateCompleteListener()
+
+        async(UI) {
+            onIndexUpdateCompleteListener(folderInfo)
+        }
     }
 
     private fun init(context: Context) {
-        isLoading = true
-        val configuration = ConfigurationService.Loader()
-                .setCache(File(context.externalCacheDir, ".cache"))
-                .setDatabase(File(context.getExternalFilesDir(null), "database"))
-                .loadFrom(File(context.getExternalFilesDir(null), "config.properties"))
-        configuration.Editor().setDeviceName(Util.getDeviceName())
-        try {
-            FileUtils.cleanDirectory(configuration.temp)
-        } catch (e: IOException) {
-            Log.e(TAG, "Failed to delete temporary files", e)
-            close()
-        }
-
-        KeystoreHandler.Loader().loadAndStore(configuration)
-        configuration.Editor().persistLater()
-        Log.i(TAG, "loaded mConfiguration = " + configuration.Writer().dumpToString())
-        Log.i(TAG, "storage space = " + configuration.getStorageInfo().dumpAvailableSpace())
+        val configuration = Configuration(configFolder = context.filesDir)
         val syncthingClient = SyncthingClient(configuration)
-        //TODO listen for device events, update device list
         val folderBrowser = syncthingClient.indexHandler.newFolderBrowser()
 
         if (instanceCount == 0) {
             Log.d(TAG, "All LibraryHandler instances were closed during init")
-            configuration.close()
             syncthingClient.close()
             folderBrowser.close()
         }
@@ -112,10 +88,9 @@ class LibraryHandler(context: Context, onLibraryLoaded: (LibraryHandler) -> Unit
         LibraryHandler.configuration = configuration
         LibraryHandler.syncthingClient = syncthingClient
         LibraryHandler.folderBrowser = folderBrowser
-        isLoading = false
     }
 
-    fun library(callback: (ConfigurationService, SyncthingClient, FolderBrowser) -> Unit) {
+    fun library(callback: (Configuration, SyncthingClient, FolderBrowser) -> Unit) {
         val nullCount = listOf(configuration, syncthingClient, folderBrowser).count { it == null }
         assert(nullCount == 0 || nullCount == 3, { "Inconsistent library state" })
 
@@ -136,7 +111,7 @@ class LibraryHandler(context: Context, onLibraryLoaded: (LibraryHandler) -> Unit
         library { _, s, _ -> callback(s) }
     }
 
-    fun configuration(callback: (ConfigurationService) -> Unit) {
+    fun configuration(callback: (Configuration) -> Unit) {
         library { c, _, _ -> callback(c) }
     }
 
@@ -144,6 +119,19 @@ class LibraryHandler(context: Context, onLibraryLoaded: (LibraryHandler) -> Unit
         library { _, _, f -> callback(f) }
     }
 
+    /**
+     * Check if listening port for local discovery is taken by another app. Do this check here to
+     * avoid adding another callback.
+     */
+    private fun checkIsListeningPortTaken() {
+        try {
+            DatagramSocket(21027, InetAddress.getByName("0.0.0.0")).close()
+        } catch (e: SocketException) {
+            Log.w(TAG, e)
+            isListeningPortTaken = true
+        }
+    }
+
     /**
      * Unregisters index update listener and decreases instance count.
      *
@@ -168,11 +156,10 @@ class LibraryHandler(context: Context, onLibraryLoaded: (LibraryHandler) -> Unit
                     folderBrowser = null
                     syncthingClient?.close()
                     syncthingClient = null
-                    configuration?.close()
                     configuration = null
                 }
             }.start()
-        }, 1000)
+        }, 60 * 1000)
 
     }
 }

app/src/main/kotlin/net/syncthing/lite/library/SyncthingProvider.kt

@@ -0,0 +1,151 @@
+package net.syncthing.lite.library
+
+import android.database.Cursor
+import android.database.MatrixCursor
+import android.os.CancellationSignal
+import android.os.ParcelFileDescriptor
+import android.provider.DocumentsContract.Document
+import android.provider.DocumentsContract.Root
+import android.provider.DocumentsProvider
+import android.util.Log
+import net.syncthing.java.bep.IndexBrowser
+import net.syncthing.java.core.beans.FileInfo
+import net.syncthing.java.core.beans.FolderInfo
+import net.syncthing.java.core.beans.FolderStats
+import net.syncthing.lite.R
+import java.io.File
+import java.io.FileNotFoundException
+import java.net.URLConnection
+import java.util.concurrent.CountDownLatch
+
+class SyncthingProvider : DocumentsProvider() {
+
+    companion object {
+        private const val Tag = "SyncthingProvider"
+        private val DefaultRootProjection = arrayOf(
+                Root.COLUMN_ROOT_ID,
+                Root.COLUMN_FLAGS,
+                Root.COLUMN_TITLE,
+                Root.COLUMN_SUMMARY,
+                Root.COLUMN_DOCUMENT_ID,
+                Root.COLUMN_ICON)
+        private val DefaultDocumentProjection = arrayOf(
+                Document.COLUMN_DOCUMENT_ID,
+                Document.COLUMN_DISPLAY_NAME,
+                Document.COLUMN_SIZE,
+                Document.COLUMN_MIME_TYPE,
+                Document.COLUMN_LAST_MODIFIED,
+                Document.COLUMN_FLAGS)
+    }
+
+    override fun onCreate(): Boolean {
+        Log.d(Tag, "onCreate()")
+        return true
+    }
+
+    private fun getLibraryHandler(): LibraryHandler {
+        val latch = CountDownLatch(1)
+        val libraryHandler = LibraryHandler(context, { latch.countDown() }, { _, _ -> }, {})
+        latch.await()
+        return libraryHandler
+    }
+
+    override fun queryRoots(projection: Array<String>?): Cursor {
+        Log.d(Tag, "queryRoots($projection)")
+        val latch = CountDownLatch(1)
+        var folders: List<Pair<FolderInfo, FolderStats>>? = null
+        getLibraryHandler().folderBrowser { folderBrowser ->
+            folders = folderBrowser.folderInfoAndStatsList()
+            latch.countDown()
+        }
+        latch.await()
+
+        val result = MatrixCursor(projection ?: DefaultRootProjection)
+        folders!!.forEach { folder ->
+            val row = result.newRow()
+            row.add(Root.COLUMN_ROOT_ID, folder.first.folderId)
+            row.add(Root.COLUMN_SUMMARY, folder.first.label)
+            row.add(Root.COLUMN_FLAGS, 0)
+            row.add(Root.COLUMN_TITLE, context.getString(R.string.app_name))
+            row.add(Root.COLUMN_DOCUMENT_ID, getDocIdForFile(folder.first))
+            row.add(Root.COLUMN_ICON, R.mipmap.ic_launcher)
+        }
+        return result
+    }
+
+    override fun queryChildDocuments(parentDocumentId: String, projection: Array<String>?,
+                                     sortOrder: String?): Cursor {
+        Log.d(Tag, "queryChildDocuments($parentDocumentId, $projection, $sortOrder)")
+        val result = MatrixCursor(projection ?: DefaultDocumentProjection)
+        getIndexBrowser(getFolderIdForDocId(parentDocumentId))
+                .listFiles(getPathForDocId(parentDocumentId))
+                .forEach { fileInfo ->
+                    includeFile(result, fileInfo)
+                }
+        return result
+    }
+
+    override fun queryDocument(documentId: String, projection: Array<String>?): Cursor {
+        Log.d(Tag, "queryDocument($documentId, $projection)")
+        val result = MatrixCursor(projection ?: DefaultDocumentProjection)
+        val fileInfo = getIndexBrowser(getFolderIdForDocId(documentId))
+                .getFileInfoByAbsolutePath(getPathForDocId(documentId))
+        includeFile(result, fileInfo)
+        return result
+    }
+
+    @Throws(FileNotFoundException::class)
+    override fun openDocument(documentId: String, mode: String, signal: CancellationSignal?):
+            ParcelFileDescriptor {
+        Log.d(Tag, "openDocument($documentId, $mode, $signal)")
+        val fileInfo = FileInfo(folder = getFolderIdForDocId(documentId),
+                path = getPathForDocId(documentId), type = FileInfo.FileType.FILE)
+        val accessMode = ParcelFileDescriptor.parseMode(mode)
+        if (accessMode != ParcelFileDescriptor.MODE_READ_ONLY) {
+            throw NotImplementedError()
+        }
+
+        val latch = CountDownLatch(1)
+        var outputFile: File? = null
+        getLibraryHandler().syncthingClient { syncthingClient ->
+            DownloadFileTask(context, syncthingClient, fileInfo,
+                    { t, _ -> if (signal?.isCanceled == true) t.cancel() }, {
+                outputFile = it
+                latch.countDown()
+            }, {})
+        }
+        latch.await()
+        return ParcelFileDescriptor.open(outputFile, ParcelFileDescriptor.MODE_READ_ONLY)
+    }
+
+    private fun includeFile(result: MatrixCursor, fileInfo: FileInfo) {
+        val row = result.newRow()
+        row.add(Document.COLUMN_DOCUMENT_ID, getDocIdForFile(fileInfo))
+        row.add(Document.COLUMN_DISPLAY_NAME, fileInfo.fileName)
+        row.add(Document.COLUMN_SIZE, fileInfo.size)
+        val mime = if (fileInfo.isDirectory()) Document.MIME_TYPE_DIR
+                   else URLConnection.guessContentTypeFromName(fileInfo.fileName)
+        row.add(Document.COLUMN_MIME_TYPE, mime)
+        row.add(Document.COLUMN_LAST_MODIFIED, fileInfo.lastModified)
+        row.add(Document.COLUMN_FLAGS, 0)
+    }
+
+    private fun getFolderIdForDocId(docId: String) = docId.split(":")[0]
+
+    private fun getPathForDocId(docId: String) = docId.split(":")[1]
+
+    private fun getDocIdForFile(folderInfo: FolderInfo) = folderInfo.folderId + ":"
+
+    private fun getDocIdForFile(fileInfo: FileInfo) = fileInfo.folder + ":" + fileInfo.path
+
+    private fun getIndexBrowser(folderId: String): IndexBrowser {
+        val latch = CountDownLatch(1)
+        var indexBrowser: IndexBrowser? = null
+        getLibraryHandler().syncthingClient {
+            indexBrowser = it.indexHandler.newIndexBrowser(folderId)
+            latch.countDown()
+        }
+        latch.await()
+        return indexBrowser!!
+    }
+}

app/src/main/kotlin/net/syncthing/lite/library/UpdateIndexTask.kt

@@ -1,47 +0,0 @@
-package net.syncthing.lite.library
-
-import android.content.Context
-import android.preference.PreferenceManager
-import net.syncthing.java.client.SyncthingClient
-import net.syncthing.lite.R
-import org.jetbrains.anko.doAsync
-import org.jetbrains.anko.toast
-import org.jetbrains.anko.uiThread
-import java.util.*
-
-class UpdateIndexTask(private val androidContext: Context, private val syncthingClient: SyncthingClient) {
-    private val mPreferences = PreferenceManager.getDefaultSharedPreferences(androidContext)
-
-    fun updateIndex() {
-        if (sIndexUpdateInProgress)
-            return
-
-        sIndexUpdateInProgress = true
-        syncthingClient.updateIndexFromPeers { _, failures ->
-            sIndexUpdateInProgress = false
-            if (failures.isEmpty()) {
-                showToast(androidContext.getString(R.string.toast_index_update_successful))
-            } else {
-                showToast(androidContext.getString(R.string.toast_index_update_failed, failures.size))
-            }
-            mPreferences.edit()
-                    .putLong(LAST_INDEX_UPDATE_TS_PREF, Date().time)
-                    .apply()
-        }
-    }
-
-    private fun showToast(message: String) {
-        doAsync {
-            uiThread {
-                androidContext.toast(message)
-            }
-        }
-    }
-
-    companion object {
-
-        val LAST_INDEX_UPDATE_TS_PREF = "LAST_INDEX_UPDATE_TS"
-
-        private var sIndexUpdateInProgress: Boolean = false
-    }
-}

app/src/main/kotlin/net/syncthing/lite/library/UploadFileTask.kt

@@ -1,97 +1,48 @@
 package net.syncthing.lite.library
 
-import android.app.ProgressDialog
 import android.content.Context
 import android.net.Uri
 import android.util.Log
-import kotlinx.coroutines.experimental.android.UI
-import kotlinx.coroutines.experimental.async
 import net.syncthing.java.bep.BlockPusher
 import net.syncthing.java.client.SyncthingClient
 import net.syncthing.java.core.utils.PathUtils
-import net.syncthing.lite.R
 import net.syncthing.lite.utils.Util
-import org.jetbrains.anko.toast
-import java.io.IOException
+import org.apache.commons.io.IOUtils
 
 // TODO: this should be an IntentService with notification
-class UploadFileTask(private val context: Context, private val syncthingClient: SyncthingClient,
-                     private val localFile: Uri, private val syncthingFolder: String,
+class UploadFileTask(context: Context, syncthingClient: SyncthingClient,
+                     localFile: Uri, private val syncthingFolder: String,
                      syncthingSubFolder: String,
-                     private val onUploadCompleteListener: () -> Unit) {
+                     private val onProgress: (BlockPusher.FileUploadObserver) -> Unit,
+                     private val onComplete: () -> Unit,
+                     private val onError: () -> Unit) {
 
-    companion object {
-        private val TAG = "UploadFileTask"
-    }
+    private val TAG = "UploadFileTask"
 
-    private val fileName = Util.getContentFileName(context, localFile)
-    private val syncthingPath = PathUtils.buildPath(syncthingSubFolder, fileName)
+    private val syncthingPath = PathUtils.buildPath(syncthingSubFolder, Util.getContentFileName(context, localFile))
+    private val uploadStream = context.contentResolver.openInputStream(localFile)
 
-    private lateinit var mProgressDialog: ProgressDialog
-    private var mCancelled = false
+    private var isCancelled = false
 
-    fun uploadFile() {
-        createDialog()
+    init {
         Log.i(TAG, "Uploading file $localFile to folder $syncthingFolder:$syncthingPath")
-        try {
-            val uploadStream = context.contentResolver.openInputStream(localFile)
-            syncthingClient.pushFile(uploadStream, syncthingFolder, syncthingPath, { observer ->
-                onProgress(observer)
-                try {
-                    while (!observer.isCompleted()) {
-                        if (mCancelled)
-                            return@pushFile
+        syncthingClient.getBlockPusher(syncthingFolder, { blockPusher ->
+            val observer = blockPusher.pushFile(uploadStream, syncthingFolder, syncthingPath)
+            onProgress(observer)
+                while (!observer.isCompleted()) {
+                    if (isCancelled)
+                        return@getBlockPusher
 
-                        observer.waitForProgressUpdate()
-                        Log.i(TAG, "upload progress = " + observer.progressMessage())
-                        onProgress(observer)
-                    }
-                } catch (e: InterruptedException) {
-                    onError()
+                    observer.waitForProgressUpdate()
+                    Log.i(TAG, "upload progress = ${observer.progressPercentage()}%")
+                    onProgress(observer)
                 }
-
+                IOUtils.closeQuietly(uploadStream)
                 onComplete()
-            }, { this.onError() })
-        } catch (e: IOException) {
-            onError()
-        }
-
+        }, { onError() })
     }
 
-    private fun createDialog() {
-        mProgressDialog = ProgressDialog(context)
-        mProgressDialog.setMessage(context.getString(R.string.dialog_uploading_file, fileName))
-        mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL)
-        mProgressDialog.setCancelable(true)
-        mProgressDialog.setOnCancelListener { mCancelled = true }
-        mProgressDialog.isIndeterminate = true
-        mProgressDialog.show()
-    }
-
-    private fun onProgress(observer: BlockPusher.FileUploadObserver) {
-        async(UI) {
-            mProgressDialog.isIndeterminate = false
-            mProgressDialog.max = observer.dataSource().getSize().toInt()
-            mProgressDialog.progress = (observer.progress() * observer.dataSource().getSize()).toInt()
-        }
-    }
-
-    private fun onComplete() {
-        if (mCancelled)
-            return
-
-        Log.i(TAG, "Uploaded file $fileName to folder $syncthingFolder:$syncthingPath")
-        async(UI) {
-            mProgressDialog.dismiss()
-            this@UploadFileTask.context.toast(R.string.toast_upload_complete)
-            onUploadCompleteListener()
-        }
-    }
-
-    private fun onError() {
-        async(UI) {
-            mProgressDialog.dismiss()
-            this@UploadFileTask.context.toast(R.string.toast_file_upload_failed)
-        }
+    fun cancel() {
+        isCancelled = true
     }
 }

app/src/main/kotlin/net/syncthing/lite/utils/Util.kt

@@ -3,15 +3,21 @@ package net.syncthing.lite.utils
 import android.content.Context
 import android.net.Uri
 import android.os.Build
-import android.provider.MediaStore
-import android.util.Log
+import android.provider.OpenableColumns
+import kotlinx.coroutines.experimental.android.UI
+import kotlinx.coroutines.experimental.async
+import net.syncthing.java.core.beans.DeviceId
+import net.syncthing.java.core.beans.DeviceInfo
+import net.syncthing.lite.R
+import net.syncthing.lite.library.LibraryHandler
 import org.apache.commons.lang3.StringUtils.capitalize
-import java.io.File
+import org.jetbrains.anko.toast
+import java.io.IOException
+import java.security.InvalidParameterException
+import java.util.*
 
 object Util {
 
-    private val Tag = "Util"
-
     fun getDeviceName(): String {
         val manufacturer = Build.MANUFACTURER ?: ""
         val model = Build.MODEL ?: ""
@@ -24,17 +30,32 @@ object Util {
         return deviceName ?: "android"
     }
 
-    fun getContentFileName(context: Context, contentUri: Uri): String {
-        var fileName = File(contentUri.lastPathSegment).name
-        if (contentUri.scheme == "content") {
-            context.contentResolver.query(contentUri, arrayOf(MediaStore.Images.Media.DATA), null, null, null)!!.use { cursor ->
-                val columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA)
-                cursor.moveToFirst()
-                val path = cursor.getString(columnIndex)
-                Log.d(Tag, "recovered 'content' uri real path = " + path)
-                fileName = File(Uri.parse(path).lastPathSegment).name
+    fun getContentFileName(context: Context, uri: Uri): String {
+        context.contentResolver.query(uri, null, null, null, null, null).use { cursor ->
+            if (cursor == null || !cursor.moveToFirst()) {
+                throw InvalidParameterException("Cursor is null or empty")
+            }
+            return cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME))
+        }
+    }
+
+    @Throws(IOException::class)
+    fun importDeviceId(libraryHandler: LibraryHandler?, context: Context?, deviceId: String,
+                       onComplete: () -> Unit) {
+        val deviceId2 = DeviceId(deviceId.toUpperCase(Locale.US))
+        libraryHandler?.configuration { configuration ->
+            if (!configuration.peerIds.contains(deviceId2)) {
+                configuration.peers = configuration.peers + DeviceInfo(deviceId2, null)
+                configuration.persistLater()
+                async(UI) {
+                    context?.toast(context.getString(R.string.device_import_success, deviceId2.shortId))
+                    onComplete()
+                }
+            } else {
+                async(UI) {
+                    context?.toast(context.getString(R.string.device_already_known, deviceId2.shortId))
+                }
             }
         }
-        return fileName
     }
 }

app/src/main/res/drawable/ic_content_copy_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M16,1L4,1c-1.1,0 -2,0.9 -2,2v14h2L4,3h12L16,1zM19,5L8,5c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h11c1.1,0 2,-0.9 2,-2L21,7c0,-1.1 -0.9,-2 -2,-2zM19,21L8,21L8,7h11v14z"/>
+</vector>

app/src/main/res/drawable/ic_qr_code_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M3,11H5V13H3V11M11,5H13V9H11V5M9,11H13V15H11V13H9V11M15,11H17V13H19V11H21V13H19V15H21V19H19V21H17V19H13V21H11V17H15V15H17V13H15V11M19,19V15H17V19H19M15,3H21V9H15V3M17,5V7H19V5H17M3,3H9V9H3V3M5,5V7H7V5H5M3,15H9V21H3V15M5,17V19H7V17H5Z"/>
+</vector>

app/src/main/res/drawable/ic_qr_code_gray_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#7D000000"
+        android:pathData="M3,11H5V13H3V11M11,5H13V9H11V5M9,11H13V15H11V13H9V11M15,11H17V13H19V11H21V13H19V15H21V19H19V21H17V19H13V21H11V17H15V15H17V13H15V11M19,19V15H17V19H19M15,3H21V9H15V3M17,5V7H19V5H17M3,3H9V9H3V3M5,5V7H7V5H5M3,15H9V21H3V15M5,17V19H7V17H5Z"/>
+</vector>

app/src/main/res/drawable/ic_refresh_gray_24dp.xml

@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-        android:width="24dp"
-        android:height="24dp"
-        android:viewportWidth="24.0"
-        android:viewportHeight="24.0">
-    <path
-        android:fillColor="#7D000000"
-        android:pathData="M17.65,6.35C16.2,4.9 14.21,4 12,4c-4.42,0 -7.99,3.58 -7.99,8s3.57,8 7.99,8c3.73,0 6.84,-2.55 7.73,-6h-2.08c-0.82,2.33 -3.04,4 -5.65,4 -3.31,0 -6,-2.69 -6,-6s2.69,-6 6,-6c1.66,0 3.14,0.69 4.22,1.78L13,11h7V4l-2.35,2.35z"/>
-</vector>

app/src/main/res/drawable/ic_settings_gray_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#7D000000"
+        android:pathData="M19.43,12.98c0.04,-0.32 0.07,-0.64 0.07,-0.98s-0.03,-0.66 -0.07,-0.98l2.11,-1.65c0.19,-0.15 0.24,-0.42 0.12,-0.64l-2,-3.46c-0.12,-0.22 -0.39,-0.3 -0.61,-0.22l-2.49,1c-0.52,-0.4 -1.08,-0.73 -1.69,-0.98l-0.38,-2.65C14.46,2.18 14.25,2 14,2h-4c-0.25,0 -0.46,0.18 -0.49,0.42l-0.38,2.65c-0.61,0.25 -1.17,0.59 -1.69,0.98l-2.49,-1c-0.23,-0.09 -0.49,0 -0.61,0.22l-2,3.46c-0.13,0.22 -0.07,0.49 0.12,0.64l2.11,1.65c-0.04,0.32 -0.07,0.65 -0.07,0.98s0.03,0.66 0.07,0.98l-2.11,1.65c-0.19,0.15 -0.24,0.42 -0.12,0.64l2,3.46c0.12,0.22 0.39,0.3 0.61,0.22l2.49,-1c0.52,0.4 1.08,0.73 1.69,0.98l0.38,2.65c0.03,0.24 0.24,0.42 0.49,0.42h4c0.25,0 0.46,-0.18 0.49,-0.42l0.38,-2.65c0.61,-0.25 1.17,-0.59 1.69,-0.98l2.49,1c0.23,0.09 0.49,0 0.61,-0.22l2,-3.46c0.12,-0.22 0.07,-0.49 -0.12,-0.64l-2.11,-1.65zM12,15.5c-1.93,0 -3.5,-1.57 -3.5,-3.5s1.57,-3.5 3.5,-3.5 3.5,1.57 3.5,3.5 -1.57,3.5 -3.5,3.5z"/>
+</vector>

app/src/main/res/drawable/ic_share_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M18,16.08c-0.76,0 -1.44,0.3 -1.96,0.77L8.91,12.7c0.05,-0.23 0.09,-0.46 0.09,-0.7s-0.04,-0.47 -0.09,-0.7l7.05,-4.11c0.54,0.5 1.25,0.81 2.04,0.81 1.66,0 3,-1.34 3,-3s-1.34,-3 -3,-3 -3,1.34 -3,3c0,0.24 0.04,0.47 0.09,0.7L8.04,9.81C7.5,9.31 6.79,9 6,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3c0.79,0 1.5,-0.31 2.04,-0.81l7.12,4.16c-0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92 1.61,0 2.92,-1.31 2.92,-2.92s-1.31,-2.92 -2.92,-2.92z"/>
+</vector>

app/src/main/res/layout/activity_folder_browser.xml

@@ -6,7 +6,6 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
-        <!--center content BEGIN-->
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
@@ -14,36 +13,6 @@
                 android:divider="?android:listDivider"
                 android:showDividers="middle">
 
-                <!--index loading progress BEGIN-->
-                <LinearLayout
-                    android:layout_width="match_parent"
-                    android:layout_height="40dp"
-                    android:padding="8dp"
-                    android:id="@+id/index_update"
-                    android:orientation="horizontal"
-                    android:background="@color/primary"
-                    android:visibility="gone">
-                    <ProgressBar
-                        android:layout_width="wrap_content"
-                        android:layout_height="match_parent"
-                        android:indeterminate="true"
-                        android:paddingStart="12dp"
-                        android:paddingEnd="12dp"/>
-                    <TextView
-                        android:id="@+id/index_update_label"
-                        android:layout_width="0dp"
-                        android:layout_weight="1"
-                        android:layout_height="match_parent"
-                        android:textSize="18sp"
-                        android:textColor="@color/white_on_primary"
-                        android:text="@string/index_update_progress_message"
-                        android:layout_gravity="start"
-                        android:textAlignment="gravity"
-                        />
-                </LinearLayout>
-                <!--index loading progress END-->
-
-                <!--main list view BEGIN-->
                 <ListView
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
@@ -69,12 +38,9 @@
                     android:layout_height="match_parent"
                     android:layout_gravity="center"
                     android:visibility="gone"/>
-                <!--main list view END-->
 
             </LinearLayout>
-        <!--center content END-->
 
-        <!--upload here overlay button BEGIN-->
             <android.support.design.widget.FloatingActionButton
                 android:id="@+id/main_list_view_upload_here_button"
                 android:layout_width="wrap_content"
@@ -86,7 +52,6 @@
                 app:elevation="6dp"
                 app:pressedTranslationZ="12dp"
                 android:src="@drawable/ic_file_upload_white_24dp"/>
-        <!--upload here overlay button END-->
 
     </RelativeLayout>
 

app/src/main/res/layout/activity_folder_picker.xml

@@ -1,22 +0,0 @@
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <FrameLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent">
-
-        <ListView
-            android:id="@android:id/list"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-
-        <TextView
-            android:id="@android:id/empty"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_gravity="center"
-            android:text="@string/directory_empty" />
-    </FrameLayout>
-</LinearLayout>

app/src/main/res/layout/activity_main.xml

@@ -5,40 +5,12 @@
         android:id="@+id/drawer_layout"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
-        <!-- The main content view -->
-
-        <LinearLayout
-            android:layout_width="match_parent"
-            android:layout_height="40dp"
-            android:padding="8dp"
-            android:id="@+id/index_update"
-            android:orientation="horizontal"
-            android:background="@color/primary"
-            android:visibility="gone">
-            <ProgressBar
-                android:layout_width="wrap_content"
-                android:layout_height="match_parent"
-                android:indeterminate="true"
-                android:paddingStart="12dp"
-                android:paddingEnd="12dp"/>
-            <TextView
-                android:id="@+id/index_update_label"
-                android:layout_width="0dp"
-                android:layout_weight="1"
-                android:layout_height="match_parent"
-                android:textSize="18sp"
-                android:textColor="@color/white_on_primary"
-                android:text="@string/index_update_progress_message"
-                android:layout_gravity="start"
-                android:textAlignment="gravity"
-                />
-        </LinearLayout>
 
         <FrameLayout
             android:id="@+id/content_frame"
             android:layout_width="match_parent"
             android:layout_height="match_parent" />
-        <!-- The navigation drawer -->
+
         <android.support.design.widget.NavigationView
             android:id="@+id/navigation"
             android:layout_width="wrap_content"
@@ -46,6 +18,7 @@
             android:layout_gravity="start"
             android:background="@android:color/white"
             app:menu="@menu/drawer_view" />
+
     </android.support.v4.widget.DrawerLayout>
 
 </layout>

app/src/main/res/layout/dialog_device_id.xml

@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <ScrollView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content">
+
+        <LinearLayout
+            android:orientation="vertical"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="12dp">
+
+            <LinearLayout
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:id="@+id/device_id"
+                    android:layout_height="wrap_content"
+                    android:layout_width="0dp"
+                    android:layout_weight="1"
+                    android:padding="8dp"
+                    android:clickable="true"
+                    android:drawableEnd="@drawable/ic_content_copy_black_24dp"
+                    android:focusable="true"
+                    android:fontFamily="monospace"
+                    android:textAppearance="@style/TextAppearance.AppCompat.Caption"
+                    tools:text="ASD1ASD-ASD1ASD-ASD1ASD-ASD1ASD-ASD1ASD-ASD1ASD-ASD1ASD-ASD1ASD"/>
+
+                <TextView
+                    android:id="@+id/share"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:padding="8dp"
+                    android:drawableEnd="@drawable/ic_share_black_24dp"
+                    android:clickable="true"
+                    android:focusable="true" />
+
+            </LinearLayout>
+
+            <ImageView
+                android:id="@+id/qr_code"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:scaleType="centerCrop"
+                android:visibility="gone"/>
+
+            <ProgressBar
+                android:id="@+id/progress_bar"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"/>
+
+        </LinearLayout>
+
+    </ScrollView>
+
+</layout>

app/src/main/res/layout/dialog_loading.xml

@@ -4,27 +4,20 @@
     <LinearLayout
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:padding="@dimen/abc_action_bar_content_inset_material"
+        android:padding="24dp"
         android:theme="?alertDialogTheme"
-        android:orientation="vertical">
+        android:orientation="horizontal"
+        android:gravity="center">
 
-        <LinearLayout
-            android:layout_width="match_parent"
+        <ProgressBar
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:orientation="horizontal"
-            android:gravity="center">
+            android:layout_marginEnd="24dp" />
 
-            <ProgressBar
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_marginEnd="@dimen/abc_action_bar_content_inset_material" />
-
-            <TextView
-                android:id="@+id/loading_text"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"/>
-
-        </LinearLayout>
+        <TextView
+            android:id="@+id/loading_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"/>
 
     </LinearLayout>
 

app/src/main/res/layout/fragment_devices.xml

@@ -13,6 +13,7 @@
                 android:divider="@color/divider"
                 android:dividerHeight="2dp">
             </ListView>
+
             <TextView
                 android:id="@+id/empty"
                 android:layout_width="wrap_content"
@@ -22,12 +23,14 @@
                 android:textSize="20sp"
                 android:visibility="gone" />
 
-        <uk.co.markormesher.android_fab.FloatingActionButton
-            android:id="@+id/fab"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            app:buttonIcon="@drawable/ic_add_white_24dp"
-            app:buttonBackgroundColour="@color/accent"/>
+        <android.support.design.widget.FloatingActionButton
+            android:id="@+id/add_device"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentBottom="true"
+            android:layout_alignParentEnd="true"
+            app:useCompatPadding="true"
+            android:src="@drawable/ic_add_white_24dp" />
 
     </RelativeLayout>
 

app/src/main/res/layout/fragment_intro_one.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/intro_primary"
+        android:padding="28dp"
+        android:gravity="center_horizontal">
+
+            <TextView
+                android:id="@+id/title"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="24dp"
+                android:textColor="#eee"
+                android:textSize="24sp"
+                android:text="@string/intro_page_one_title"/>
+
+            <ImageView
+                android:layout_width="160dp"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:src="@mipmap/ic_launcher"/>
+
+            <TextView
+                android:id="@+id/description"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:layout_marginBottom="@dimen/appIntroBottomBarHeight"
+                android:textSize="16sp"
+                android:textAlignment="center"
+                android:textColor="#eee"
+                android:text="@string/intro_page_one_description" />
+
+    </LinearLayout>
+
+</layout>

app/src/main/res/layout/fragment_intro_three.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/intro_primary"
+        android:padding="28dp"
+        android:gravity="center_horizontal">
+
+            <TextView
+                android:id="@+id/title"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="24dp"
+                android:textColor="#eee"
+                android:textSize="24sp"
+                android:text="@string/intro_page_three_title"/>
+
+            <ProgressBar
+                android:layout_width="72dp"
+                android:layout_height="0dp"
+                android:layout_weight="1"/>
+
+            <TextView
+                android:id="@+id/description"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:layout_marginBottom="@dimen/appIntroBottomBarHeight"
+                android:textSize="16sp"
+                android:textAlignment="center"
+                android:textColor="#eee"
+                tools:text="@string/intro_page_three_description" />
+
+    </LinearLayout>
+
+</layout>

app/src/main/res/layout/fragment_intro_two.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/intro_primary"
+        android:padding="28dp"
+        android:gravity="center_horizontal">
+
+            <TextView
+                android:id="@+id/title"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="24dp"
+                android:textColor="#eee"
+                android:textSize="24sp"
+                android:text="@string/intro_page_two_title"/>
+
+            <FrameLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:layout_gravity="center">
+
+                <include
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:id="@+id/enter_device_id"
+                    layout="@layout/view_enter_device_id" />
+
+            </FrameLayout>
+
+            <TextView
+                android:id="@+id/description"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:layout_marginBottom="@dimen/appIntroBottomBarHeight"
+                android:textSize="16sp"
+                android:textAlignment="center"
+                android:textColor="#eee"
+                android:text="@string/intro_page_two_description" />
+
+    </LinearLayout>
+
+</layout>

app/src/main/res/layout/item_folder_picker.xml

@@ -1,13 +0,0 @@
-<layout xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <TextView
-    android:id="@android:id/text1"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:textAppearance="@style/TextAppearance.AppCompat.Body1"
-    android:gravity="center_vertical"
-    android:paddingLeft="@dimen/abc_action_bar_content_inset_material"
-    android:paddingRight="@dimen/abc_action_bar_content_inset_material"
-    android:minHeight="48dp" />
-
-</layout>

app/src/main/res/layout/listview_device.xml

@@ -5,8 +5,8 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:paddingBottom="12dp"
-        android:paddingLeft="@dimen/abc_action_bar_content_inset_material"
-        android:paddingRight="@dimen/abc_action_bar_content_inset_material"
+        android:paddingLeft="24dp"
+        android:paddingRight="24dp"
         android:paddingTop="12dp">
 
         <ImageView

app/src/main/res/layout/listview_folder.xml

@@ -5,8 +5,8 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:paddingBottom="12dp"
-        android:paddingLeft="@dimen/abc_action_bar_content_inset_material"
-        android:paddingRight="@dimen/abc_action_bar_content_inset_material"
+        android:paddingLeft="24dp"
+        android:paddingRight="24dp"
         android:paddingTop="12dp">
 
         <TextView

app/src/main/res/layout/view_enter_device_id.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <LinearLayout
+        android:orientation="horizontal"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingStart="16dp"
+        android:paddingEnd="16dp">
+
+        <android.support.design.widget.TextInputLayout
+            android:id="@+id/device_id_holder"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            app:errorEnabled="true">
+
+            <android.support.design.widget.TextInputEditText
+                android:id="@+id/device_id"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:minLines="3"
+                android:inputType="textNoSuggestions|textMultiLine|textCapCharacters"
+                tools:text="VPNPKMK-VL2SOQN-SS5I2AB-G4BV7ZK-RO5ODEE-Y2G3CZ4-C4FUW4P-ZEMJOAF"/>
+
+        </android.support.design.widget.TextInputLayout>
+
+        <ImageButton
+            android:id="@+id/scan_qr_code"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:layout_gravity="center"
+            android:padding="8dp"
+            android:layout_marginBottom="8dp"
+            android:scaleType="fitCenter"
+            android:src="@drawable/ic_qr_code_black_24dp"
+            android:background="?android:selectableItemBackgroundBorderless"/>
+
+    </LinearLayout>
+</layout>

app/src/main/res/menu/drawer_view.xml

@@ -14,10 +14,15 @@
             android:title="@string/devices_label" />
 
         <item
-            android:id="@+id/update_index"
-            android:icon="@drawable/ic_refresh_gray_24dp"
-            android:title="@string/update_remote_index_label"
-            android:checkable="false"/>
+            android:id="@+id/settings"
+            android:icon="@drawable/ic_settings_gray_24dp"
+            android:title="@string/settings" />
+
+        <item
+            android:id="@+id/device_id"
+            android:icon="@drawable/ic_qr_code_black_24dp"
+            android:title="@string/show_device_id"
+            android:checkable="false" />
 
         <item
             android:id="@+id/clear_index"

app/src/main/res/values-de/strings.xml

@@ -1,32 +1,21 @@
 <resources>
     <string name="app_name">Syncthing Lite</string>
-    <string name="index_update_progress_message">Index wird aktualisiert…</string>
     <string name="folder_list_empty_message">Keine Ordner verfügbar</string>
     <string name="clear_local_cache_index_label">Lokalen Index und Cache löschen</string>
-    <string name="update_remote_index_label">Index aktualisieren</string>
     <string name="devices_list_view_empty_message">Keine Geräte verfügbar</string>
-    <string name="toast_write_storage_permission_required">Schreibrechte werden für diese Funktion benötigt</string>
     <string name="scan_qr_code">QR code scannen</string>
     <string name="enter_device_id">Geräte ID eingeben</string>
-    <string name="invalid_device_id">Ungültige Geräte ID</string>
     <string name="device_id_dialog_title">Geräte ID eingeben</string>
-    <string name="toast_index_update_successful">Index erfolgreich aktualisiert</string>
-    <string name="toast_index_update_failed">Index update für %1$d Geräte fehlgeschlagen</string>
     <string name="dialog_downloading_file">Datei %1$s wird heruntergeladen</string>
     <string name="toast_file_download_failed">Datei konnte nicht heruntergeladen werden</string>
     <string name="toast_open_file_failed">Keine kompatible app gefunden</string>
     <string name="toast_file_upload_failed">Hochladen gescheitert</string>
     <string name="toast_upload_complete">Hochladen erfolgreich</string>
     <string name="dialog_uploading_file">Datei %1$s wird hochgeladen</string>
-    <string name="directory_empty">Ordner ist leer</string>
     <string name="clear_cache_and_index_title">Lokalen Cache und Index löschen?</string>
     <string name="clear_cache_and_index_body">Gesamten lokalen Cache und Index löschen?</string>
-    <string name="index_update_progress_label">Index aktualisierung für Ordner %1$s, %2$d\\% synchronisiert</string>
-    <string name="loading_config_starting_syncthing_client">Konfiguartion wird geladen, Syncthing wird gestartet</string>
-    <string name="last_modified_unknown">zuletzt modifiziert: unbekannt</string>
     <string name="last_modified_time">Zuletzt modifiziert: %1$s</string>
     <string name="remove_device_title">Gerät entfernen:</string>
-    <string name="remove_device_message">Gerät %1$s entfernen?</string>
     <string name="device_import_success">Gerät %1$s erfolgreich importiert</string>
     <string name="device_already_known">Gerät ist bereits bekannt $1%s</string>
     <string name="folders_label">Ordner</string>
@@ -34,4 +23,4 @@
     <string name="folder_label_format">%1$s (%2$s)</string>
     <string name="folder_content_info">%1$s, %2$d Dateien, %3$d Ordner</string>
     <string name="file_info">%1$s, zuletzt modifiziert %2$s</string>
-</resources>
+    </resources>

app/src/main/res/values-fr/strings.xml

@@ -0,0 +1,26 @@
+<resources>
+    <string name="app_name">Syncthing Lite</string>
+    <string name="folder_list_empty_message">Aucun dossier disponible</string>
+    <string name="clear_local_cache_index_label">Effacer le cache et l\'index local</string>
+    <string name="devices_list_view_empty_message">Aucun appareil disponible</string>
+    <string name="scan_qr_code">Scanner le QR Code</string>
+    <string name="enter_device_id">Entrer l\'ID de l\'appareil</string>
+    <string name="device_id_dialog_title">Entrer l\'ID de l\'appareil</string>
+    <string name="dialog_downloading_file">Téléchargement du fichier %1$s</string>
+    <string name="toast_file_download_failed">Le téléchargement du fichier a échoué</string>
+    <string name="toast_open_file_failed">Aucune appli compatible trouvée</string>
+    <string name="toast_file_upload_failed">Échec de l\'upload</string>
+    <string name="toast_upload_complete">Upload du fichier terminé</string>
+    <string name="dialog_uploading_file">Upload du fichier %1$s</string>
+    <string name="clear_cache_and_index_title">Effacer le cache local et l\'index?</string>
+    <string name="clear_cache_and_index_body">Effacer toutes les données du cache local et de l\'index ?</string>
+    <string name="last_modified_time">Dernière modification : %1$s</string>
+    <string name="remove_device_title">Supprimer l\'appareil %1$s\?</string>
+    <string name="device_import_success">Appareil %1$s importé avec succès</string>
+    <string name="device_already_known">Appareil déjà connu %1$s</string>
+    <string name="folders_label">Dossiers</string>
+    <string name="devices_label">Appareils</string>
+    <string name="folder_label_format">%1$s (%2$s)</string>
+    <string name="folder_content_info">%1$s, %2$d fichiers, %3$d dossiers</string>
+    <string name="file_info">%1$s, dernière modification %2$s</string>
+    </resources>

app/src/main/res/values-it/strings.xml

@@ -0,0 +1,27 @@
+<resources>
+    <string name="app_name">Syncthing Lite</string>
+    <string name="folder_list_empty_message">Nessuna cartella disponibile</string>
+    <string name="clear_local_cache_index_label">Cancella cache/indice</string>
+    <string name="devices_list_view_empty_message">Nessun dispositivo disponibile</string>
+    <string name="scan_qr_code">Scansiona codice QR</string>
+    <string name="enter_device_id">Inserisci ID dispositivo</string>
+    <string name="device_id_dialog_title">Inserisci ID Dispositivo</string>
+    <string name="dialog_downloading_file">Download del file %1$s</string>
+    <string name="toast_file_download_failed">Impossibile scaricare il file</string>
+    <string name="toast_open_file_failed">Nessuna applicazione compatibile trovata</string>
+    <string name="toast_file_upload_failed">Caricamento file fallito</string>
+    <string name="toast_upload_complete">Caricamento file completato</string>
+    <string name="dialog_uploading_file">Caricamento del file %1$s</string>
+    <string name="clear_cache_and_index_title">Cancellare la cache locale e l\'indice?</string>
+    <string name="clear_cache_and_index_body">Cancellare tutti i dati della cache locale e i dati dell\'indice?</string>
+    <string name="index_update_progress_label">Aggiornamento dell\'indice per la cartella %1$s, %2$d%% sincronizzato</string>
+    <string name="last_modified_time">Ultima modifica: %1$s</string>
+    <string name="remove_device_title">Rimuovere il dispositivo %1$s\?</string>
+    <string name="device_import_success">Dispositivo %1$s importato con successo</string>
+    <string name="device_already_known">Dispositivo %1$s già presente</string>
+    <string name="folders_label">Cartelle</string>
+    <string name="devices_label">Dispositivi</string>
+    <string name="folder_label_format">%1$s (%2$s)</string>
+    <string name="folder_content_info">%1$s, %2$d file, %3$d cartelle</string>
+    <string name="file_info">%1$s, ultima modifica %2$s</string>
+    </resources>

app/src/main/res/values-ja/strings.xml

@@ -0,0 +1,27 @@
+<resources>
+    <string name="app_name">Syncthing Lite</string>
+    <string name="folder_list_empty_message">フォルダーがありません</string>
+    <string name="clear_local_cache_index_label">ローカルキャッシュ/索引をクリア</string>
+    <string name="devices_list_view_empty_message">デバイスがありません</string>
+    <string name="scan_qr_code">QR コードをスキャン</string>
+    <string name="enter_device_id">デバイス ID を入力</string>
+    <string name="device_id_dialog_title">デバイス ID を入力</string>
+    <string name="dialog_downloading_file">ファイル %1$s のダウンロード中</string>
+    <string name="toast_file_download_failed">ファイルのダウンロードに失敗しました</string>
+    <string name="toast_open_file_failed">利用できるアプリが見つかりません</string>
+    <string name="toast_file_upload_failed">ファイルのアップロードに失敗しました</string>
+    <string name="toast_upload_complete">ファイルのアップロードが完了しました</string>
+    <string name="dialog_uploading_file">ファイル %1$s のアップロード中</string>
+    <string name="clear_cache_and_index_title">ローカルキャッシュと索引をクリアしますか?</string>
+    <string name="clear_cache_and_index_body">すべてのローカルキャッシュデータと索引データをクリアしますか?</string>
+    <string name="index_update_progress_label">フォルダー %1$s の索引を更新しました。 %2$d%% 同期しました</string>
+    <string name="last_modified_time">最終更新: %1$s</string>
+    <string name="remove_device_title">デバイス %1$sを削除しますか?</string>
+    <string name="device_import_success">デバイス %1$s のインポートに成功しました</string>
+    <string name="device_already_known">デバイスは既に存在します %1$s</string>
+    <string name="folders_label">フォルダー</string>
+    <string name="devices_label">デバイス</string>
+    <string name="folder_label_format">%1$s (%2$s)</string>
+    <string name="folder_content_info">%1$s, %2$d ファイル, %3$d ディレクトリー</string>
+    <string name="file_info">%1$s, 最終更新 %2$s</string>
+    </resources>

app/src/main/res/values-ro/strings.xml

@@ -0,0 +1,26 @@
+<resources>
+    <string name="app_name">Syncthing Lite</string>
+    <string name="folder_list_empty_message">Nici un director disponibil</string>
+    <string name="clear_local_cache_index_label">Curăță indexul/memoria locală</string>
+    <string name="devices_list_view_empty_message">Nici un dispozitiv disponibil</string>
+    <string name="scan_qr_code">Scanează cod QR</string>
+    <string name="enter_device_id">Introduceți ID dispozitiv</string>
+    <string name="device_id_dialog_title">Introduceți ID dispozitiv</string>
+    <string name="dialog_downloading_file">Se descarcă fișierul %1$s</string>
+    <string name="toast_file_download_failed">Descărcarea fișierului a eșuat</string>
+    <string name="toast_open_file_failed">Nu a fost găsită nici o aplicație compatibilă</string>
+    <string name="toast_file_upload_failed">Încărcarea fișierului a eșuat</string>
+    <string name="toast_upload_complete">Încărcarea fișierelor finalizată</string>
+    <string name="dialog_uploading_file">Se încarcă fișierul %1$s</string>
+    <string name="clear_cache_and_index_title">Se curăță memoria locală și indexul?</string>
+    <string name="clear_cache_and_index_body">Se curăță datele din memoria locală și datele indexului?</string>
+    <string name="last_modified_time">Modificat ultima dată pe: %1$s</string>
+    <string name="remove_device_title">Ștergere dispozitiv %1$s\?</string>
+    <string name="device_import_success">Dispozitiv importat cu succes %1$s</string>
+    <string name="device_already_known">Dispozitiv deja prezent %1$s</string>
+    <string name="folders_label">Directoare</string>
+    <string name="devices_label">Dispozitive</string>
+    <string name="folder_label_format">%1$s (%2$s)</string>
+    <string name="folder_content_info">%1$s, %2$d fișier(e), %3$d director(oare)</string>
+    <string name="file_info">%1$s, modificat ultima dată pe %2$s</string>
+    </resources>

app/src/main/res/values/colors.xml

@@ -1,9 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <color name="primary">#f43703</color>
-    <color name="primary_dark">#d13602</color>
-    <color name="white_on_primary">#fefefe</color>
+    <color name="primary_light">#ff6f39</color>
+    <color name="primary_dark">#b90000</color>
     <color name="accent">#FFC107</color>
     <color name="divider">#1F000000</color>
-
+    <color name="intro_primary">#ff5252</color>
+    <color name="intro_primary_dark">#c50e29</color>
 </resources>

app/src/main/res/values/strings.xml

@@ -1,32 +1,25 @@
 <resources>
     <string name="app_name">Syncthing Lite</string>
-    <string name="index_update_progress_message">Index update…</string>
     <string name="folder_list_empty_message">No folder available</string>
     <string name="clear_local_cache_index_label">Clear local cache/index</string>
-    <string name="update_remote_index_label">Update remote index</string>
     <string name="devices_list_view_empty_message">No devices available</string>
-    <string name="toast_write_storage_permission_required">Write storage permission is required for this functionality</string>
     <string name="scan_qr_code">Scan QR code</string>
     <string name="enter_device_id">Enter device ID</string>
-    <string name="invalid_device_id">Invalid device ID</string>
+    <string name="invalid_device_id">Error: Invalid device ID</string>
     <string name="device_id_dialog_title">Enter Device ID</string>
-    <string name="toast_index_update_successful">Index update successful</string>
-    <string name="toast_index_update_failed">Index update failed for %1$d devices</string>
     <string name="dialog_downloading_file">Downloading file %1$s</string>
     <string name="toast_file_download_failed">Failed to download file</string>
     <string name="toast_open_file_failed">No compatible app found</string>
     <string name="toast_file_upload_failed">File upload failed</string>
     <string name="toast_upload_complete">File upload complete</string>
     <string name="dialog_uploading_file">Uploading file %1$s</string>
-    <string name="directory_empty">Directory is empty</string>
     <string name="clear_cache_and_index_title">Clear local cache and index?</string>
     <string name="clear_cache_and_index_body">Clear all local cache data and index data?</string>
-    <string name="index_update_progress_label">Index update for folder %1$s, %2$d% synchronized</string>
-    <string name="loading_config_starting_syncthing_client">Loading config, starting syncthing client</string>
-    <string name="last_modified_unknown">Last modified: unknown</string>
+    <string name="index_update_progress_label">Index update for folder %1$s, %2$d%% synchronized</string>
+    <string name="loading_config_starting_syncthing_client">Loading config, starting syncthing client…</string>
     <string name="last_modified_time">Last modified: %1$s</string>
     <string name="remove_device_title">Remove device %1$s\?</string>
-    <string name="remove_device_message">Remove device %1$s from list of known devices?</string>
+    <string name="remove_device_message">Remove %1$s from the list of known devices?</string>
     <string name="device_import_success">Successfully imported device %1$s</string>
     <string name="device_already_known">Device already present %1$s</string>
     <string name="folders_label">Folders</string>
@@ -34,4 +27,20 @@
     <string name="folder_label_format">%1$s (%2$s)</string>
     <string name="folder_content_info">%1$s, %2$d files, %3$d directories</string>
     <string name="file_info">%1$s, last modified %2$s</string>
+    <string name="show_device_id">Show device ID</string>
+    <string name="device_id">Device ID</string>
+    <string name="device_id_copied">Device ID copied to clipboard</string>
+    <string name="share_device_id_chooser">Share device ID with</string>
+    <string name="other_syncthing_instance_title">Another Syncthing instance is running</string>
+    <string name="other_syncthing_instance_message">Local discovery will not work. Stop the other Syncthing instance to enable local discovery.</string>
+    <string name="intro_page_one_title">Welcome to Syncthing Lite</string>
+    <string name="intro_page_one_description">Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it\'s transmitted over the Internet.</string>
+    <string name="intro_page_two_title">Add a device</string>
+    <string name="intro_page_three_title">Share your folders</string>
+    <string name="intro_page_two_description">Enter a Syncthing device ID, or scan a device ID from a QR code</string>
+    <string name="intro_page_three_description">Now accept the device with ID %1$s, and share a folder with it. It may take a few minutes until the devices connect.</string>
+    <string name="settings">Settings</string>
+    <string name="settings_app_version_title">App version</string>
+    <string name="settings_local_device_name">Local device name</string>
+    <string name="settings_local_device_summary">The name that other devices will see for this device</string>
 </resources>

app/src/main/res/values/themes.xml

@@ -4,6 +4,15 @@
         <item name="colorPrimary">@color/primary</item>
         <item name="colorPrimaryDark">@color/primary_dark</item>
         <item name="colorAccent">@color/accent</item>
+        <item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>
+    </style>
+
+    <style name="Theme.Syncthing.NoActionBar" parent="@style/Theme.AppCompat">
+        <item name="colorPrimary">@color/intro_primary</item>
+        <item name="colorPrimaryDark">@color/intro_primary_dark</item>
+        <item name="colorAccent">@color/accent</item>
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
     </style>
 
 </resources>

app/src/main/res/xml/preferences.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <PreferenceCategory
+        android:title="@string/settings">
+
+        <EditTextPreference
+            android:key="local_device_name"
+            android:title="@string/settings_local_device_name"
+            android:summary="@string/settings_local_device_summary"
+            android:persistent="false"/>
+
+        <Preference
+            android:key="app_version"
+            android:title="@string/settings_app_version_title"/>
+
+    </PreferenceCategory>
+
+</PreferenceScreen>