diff --git a/app/src/main/java/com/emanuelef/remote_capture/activities/AboutActivity.java b/app/src/main/java/com/emanuelef/remote_capture/activities/AboutActivity.java
index 43565ddc..d5d1a0fa 100644
--- a/app/src/main/java/com/emanuelef/remote_capture/activities/AboutActivity.java
+++ b/app/src/main/java/com/emanuelef/remote_capture/activities/AboutActivity.java
@@ -14,7 +14,7 @@
* You should have received a copy of the GNU General Public License
* along with PCAPdroid. If not, see .
*
- * Copyright 2020-24 - Emanuele Faranda
+ * Copyright 2020-25 - Emanuele Faranda
*/
package com.emanuelef.remote_capture.activities;
diff --git a/app/src/main/res/layout/about_activity.xml b/app/src/main/res/layout/about_activity.xml
index 78301d96..9308ab17 100644
--- a/app/src/main/res/layout/about_activity.xml
+++ b/app/src/main/res/layout/about_activity.xml
@@ -71,7 +71,7 @@
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:autoLink="email"
- android:text="Copyright (C) 2020-24 - Emanuele Faranda black.silver@hotmail.it" />
+ android:text="Copyright (C) 2020-25 - Emanuele Faranda black.silver@hotmail.it" />
+
+
+
+
+```
+
+- Implementing edge-to-edge support requires a lot of efforts, in particular to handle all the possible cases for insets
+- Moreover, there can be issues which only appear on older Android versions (e.g. Android 9, see adbc33afe55f2c1795d250707fc3f29aadacdbb0)
+- When edge-to-edge support is enabled, it breaks the ability to select a custom theme, see 5f50ae30c1e8b4f2ce73cb684066d12fb0d65b0a
+
+# How it works
+
+- inset types:
+ - WindowInsetsCompat.Type.statusBars: the status bar, which is the one with icons and wall clock
+ - WindowInsetsCompat.Type.systemBars: any system bar, e.g. 3-buttons navigation bar
+ - WindowInsetsCompat.Type.displayCutout: cutouts in the displays, e.g. camera holes
+ - WindowInsetsCompat.Type.ime: virtual keyboard. Handling of this inset is not usually required, but it allows to get a better behavior on IME open
+ - e.g. to resize the ReciclerView to make all the items visible on screen
+
+- insets handling works hierarchically:
+ - the top views first get a chance to handle the insets
+ - if the top views don't consume the insets, they get propagated to the children
+ - it's unclear how it affects siblings, but it does, see issues on Android 9 adbc33afe55f2c1795d250707fc3f29aadacdbb0
+
+- insets can either be handled via:
+ - ViewCompat.setOnApplyWindowInsetsListener
+ - you can choose to consume or not the insets
+ - makes it possible to implement edge-to-edge
+ - fitsSystemWindows="true"
+ - it always *consumes* all the insets
+ - it just adds margins, without proper edge-to-edge support. Normally it should not be used
+
+- ViewPager2 does not handle insets dispatching properly
+ - https://issuetracker.google.com/issues/145617093#comment10
+ - to fix it, it's necessary to dispatch the insets manually on tab change: ViewCompat.dispatchApplyWindowInsets
+ - see Utils.fixViewPager2Insets
+
+# Guidelines
+
+- To enable proper edge-to-edge support, in particular on older platforms, when creating an Activity be sure to either:
+ - just inherit from BaseActivity, which internally calls Utils.enableEdgeToEdge and handles the insets for the toolbar (preferred approach)
+ - call Utils.enableEdgeToEdge manually in onCreate, before super.onCreate
+
+- The activity layout must use AppBarLayout and Toolbar (with id `toolbar`) in a CoordinatorLayout. See how it is done for other activities (e.g. about_activity.xml)
+ - this makes proper space for the toolbar
+ - when possible, reuse `fragment_activity.xml`, for simple activities made of just 1 fragment
+ - for tab-based activities, either use `tab_activity.xml` or `tab_activity_fixed.xml`. In the latter case, be sure to call `Utils.fixScrollableTabLayoutInsets`
+ - the toolbar needs some top insets handling; if you inherit from BaseActivity, this is already implemented
+
+- When using ViewPager2, be sure to call Utils.fixViewPager2Insets to properly dispatch insets to sub-views
+- For ReciclerViews, use EmptyRecyclerView when possible, which already handles insets, IME (virtual keyboard), uses setClipToPadding(false) for edge-to-edge support
+- For ListViews, use Utils.fixListviewInsetsBottom for edge-to-edge support
+
+- New activity testing:
+ - test with 3-buttons bottom navbar. This can be enabled from the Android settings
+ - to properly test scrolling behavior, ensure to populate the views
+ - test horizontal insets with rotated device
+ - test with IME open/closed in views that use it
+ - test on the newest Android version
+ - test on Android 9 or lower, as some bugs are only visible there (e.g. adbc33afe55f2c1795d250707fc3f29aadacdbb0)