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Code Issues Packages Projects Releases Wiki Activity

Use AsyncTasks to update lists

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This commit is contained in:
Dmitriy Bogdanov
2017-01-26 19:13:37 +04:00
parent 12edc4ecb3
commit 436d40611a
1 changed files with 38 additions and 23 deletions
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app/src/main/java/fr/gaulupeau/apps/Poche/ui/ArticlesListFragment.java
+38 -23
View File
@@ -3,6 +3,7 @@ package fr.gaulupeau.apps.Poche.ui;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.widget.SwipeRefreshLayout;
@@ -230,41 +231,55 @@ public class ArticlesListFragment extends Fragment implements ListAdapter.OnItem
}
private void resetListContent() {
List<Article> articles = getArticles(0);
final boolean scrollToTop = recyclerViewLayoutManager != null
&& recyclerViewLayoutManager.findFirstCompletelyVisibleItemPosition() == 0;
boolean scrollToTop = false;
if(recyclerViewLayoutManager != null) {
scrollToTop = recyclerViewLayoutManager.findFirstCompletelyVisibleItemPosition() == 0;
}
new AsyncTask<Void, Void, List<Article>>() {
@Override
protected List<Article> doInBackground(Void... params) {
return getArticles(0);
}
DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(
new ArticleListDiffCallback(mArticles, articles));
@Override
protected void onPostExecute(List<Article> articles) {
super.onPostExecute(articles);
mArticles.clear();
mArticles.addAll(articles);
// TODO: move to background thread if possible
DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(
new ArticleListDiffCallback(mArticles, articles));
diffResult.dispatchUpdatesTo(mAdapter);
mArticles.clear();
mArticles.addAll(articles);
if(scrollListener != null) scrollListener.resetState();
diffResult.dispatchUpdatesTo(mAdapter);
if(scrollToTop && recyclerView != null) {
recyclerView.scrollToPosition(0);
}
if(scrollListener != null) scrollListener.resetState();
if(scrollToTop && recyclerView != null) {
recyclerView.scrollToPosition(0);
}
}
}.execute();
}
private void loadMore(int page, final int totalItemsCount) {
private void loadMore(final int page, final int totalItemsCount) {
Log.d(TAG, String.format("loadMore(page: %d, totalItemsCount: %d)", page, totalItemsCount));
List<Article> articles = getArticles(page);
final int addedItemsCount = articles.size();
mArticles.addAll(articles);
recyclerView.post(new Runnable() {
new AsyncTask<Void, Void, List<Article>>() {
@Override
public void run() {
mAdapter.notifyItemRangeInserted(totalItemsCount, addedItemsCount);
protected List<Article> doInBackground(Void... params) {
return getArticles(page);
}
});
@Override
protected void onPostExecute(List<Article> articles) {
super.onPostExecute(articles);
mArticles.addAll(articles);
mAdapter.notifyItemRangeInserted(totalItemsCount, articles.size());
}
}.execute();
}
public void openRandomArticle() {