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Diffstat (limited to 'app/src/main/java/de/danoeh/antennapod/fragment/EpisodesListFragment.java')
-rw-r--r--app/src/main/java/de/danoeh/antennapod/fragment/EpisodesListFragment.java111
1 files changed, 28 insertions, 83 deletions
diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/EpisodesListFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/EpisodesListFragment.java
index 2a7c1f2b1..189e026a1 100644
--- a/app/src/main/java/de/danoeh/antennapod/fragment/EpisodesListFragment.java
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/EpisodesListFragment.java
@@ -1,12 +1,9 @@
package de.danoeh.antennapod.fragment;
-import android.content.Context;
import android.content.DialogInterface;
-import android.content.SharedPreferences;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
-import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import androidx.recyclerview.widget.SimpleItemAnimator;
import android.util.Log;
@@ -20,13 +17,12 @@ import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
-import com.yqritc.recyclerviewflexibledivider.HorizontalDividerItemDecoration;
-
import de.danoeh.antennapod.adapter.EpisodeItemListAdapter;
import de.danoeh.antennapod.core.event.FeedListUpdateEvent;
import de.danoeh.antennapod.core.event.PlaybackPositionEvent;
import de.danoeh.antennapod.core.event.PlayerStatusEvent;
import de.danoeh.antennapod.core.event.UnreadItemsUpdateEvent;
+import de.danoeh.antennapod.view.EpisodeItemListRecyclerView;
import de.danoeh.antennapod.view.viewholder.EpisodeItemViewHolder;
import org.greenrobot.eventbus.EventBus;
import org.greenrobot.eventbus.Subscribe;
@@ -61,18 +57,15 @@ import io.reactivex.schedulers.Schedulers;
public abstract class EpisodesListFragment extends Fragment {
public static final String TAG = "EpisodesListFragment";
- private static final String DEFAULT_PREF_NAME = "PrefAllEpisodesFragment";
- private static final String PREF_SCROLL_POSITION = "scroll_position";
- private static final String PREF_SCROLL_OFFSET = "scroll_offset";
-
protected static final int EPISODES_PER_PAGE = 150;
- private static final int VISIBLE_EPISODES_SCROLL_THRESHOLD = 5;
protected int page = 1;
+ protected boolean isLoadingMore = false;
+ protected boolean hasMoreItems = true;
- RecyclerView recyclerView;
+ EpisodeItemListRecyclerView recyclerView;
EpisodeItemListAdapter listAdapter;
ProgressBar progLoading;
- View loadingMore;
+ View loadingMoreView;
EmptyViewHandler emptyView;
@NonNull
@@ -81,11 +74,10 @@ public abstract class EpisodesListFragment extends Fragment {
private volatile boolean isUpdatingFeeds;
private boolean isMenuVisible = true;
protected Disposable disposable;
- private LinearLayoutManager layoutManager;
protected TextView txtvInformation;
String getPrefName() {
- return DEFAULT_PREF_NAME;
+ return TAG;
}
@Override
@@ -105,7 +97,7 @@ public abstract class EpisodesListFragment extends Fragment {
@Override
public void onPause() {
super.onPause();
- saveScrollPosition();
+ recyclerView.saveScrollPosition(getPrefName());
unregisterForContextMenu(recyclerView);
}
@@ -118,37 +110,6 @@ public abstract class EpisodesListFragment extends Fragment {
}
}
- private void saveScrollPosition() {
- int firstItem = layoutManager.findFirstVisibleItemPosition();
- View firstItemView = layoutManager.findViewByPosition(firstItem);
- float topOffset;
- if (firstItemView == null) {
- topOffset = 0;
- } else {
- topOffset = firstItemView.getTop();
- }
-
- SharedPreferences prefs = getActivity().getSharedPreferences(getPrefName(), Context.MODE_PRIVATE);
- SharedPreferences.Editor editor = prefs.edit();
- editor.putInt(PREF_SCROLL_POSITION, firstItem);
- editor.putFloat(PREF_SCROLL_OFFSET, topOffset);
- editor.apply();
- }
-
- private void restoreScrollPosition() {
- SharedPreferences prefs = getActivity().getSharedPreferences(getPrefName(), Context.MODE_PRIVATE);
- int position = prefs.getInt(PREF_SCROLL_POSITION, 0);
- float offset = prefs.getFloat(PREF_SCROLL_OFFSET, 0.0f);
- if (position > 0 || offset > 0) {
- layoutManager.scrollToPositionWithOffset(position, (int) offset);
- // restore once, then forget
- SharedPreferences.Editor editor = prefs.edit();
- editor.putInt(PREF_SCROLL_POSITION, 0);
- editor.putFloat(PREF_SCROLL_OFFSET, 0.0f);
- editor.apply();
- }
- }
-
private final MenuItemUtils.UpdateRefreshMenuItemChecker updateRefreshMenuItemChecker =
() -> DownloadService.isRunning && DownloadRequester.getInstance().isDownloadingFeeds();
@@ -241,12 +202,9 @@ public abstract class EpisodesListFragment extends Fragment {
View root = inflater.inflate(R.layout.all_episodes_fragment, container, false);
txtvInformation = root.findViewById(R.id.txtvInformation);
- layoutManager = new LinearLayoutManager(getActivity());
recyclerView = root.findViewById(android.R.id.list);
- recyclerView.setLayoutManager(layoutManager);
- recyclerView.setHasFixedSize(true);
- recyclerView.addItemDecoration(new HorizontalDividerItemDecoration.Builder(getActivity()).build());
recyclerView.setVisibility(View.GONE);
+ recyclerView.setRecycledViewPool(((MainActivity) getActivity()).getRecycledViewPool());
setupLoadMoreScrollListener();
RecyclerView.ItemAnimator animator = recyclerView.getItemAnimator();
@@ -256,7 +214,7 @@ public abstract class EpisodesListFragment extends Fragment {
progLoading = root.findViewById(R.id.progLoading);
progLoading.setVisibility(View.VISIBLE);
- loadingMore = root.findViewById(R.id.loadingMore);
+ loadingMoreView = root.findViewById(R.id.loadingMore);
emptyView = new EmptyViewHandler(getContext());
emptyView.attachToRecyclerView(recyclerView);
@@ -272,33 +230,10 @@ public abstract class EpisodesListFragment extends Fragment {
private void setupLoadMoreScrollListener() {
recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
-
- /* Total number of episodes after last load */
- private int previousTotalEpisodes = 0;
-
- /* True if loading more episodes is still in progress */
- private boolean isLoadingMore = true;
-
@Override
- public void onScrolled(@NonNull RecyclerView recyclerView, int deltaX, int deltaY) {
- super.onScrolled(recyclerView, deltaX, deltaY);
-
- int visibleEpisodeCount = recyclerView.getChildCount();
- int totalEpisodeCount = recyclerView.getLayoutManager().getItemCount();
- int firstVisibleEpisode = layoutManager.findFirstVisibleItemPosition();
-
- /* Determine if loading more episodes has finished */
- if (isLoadingMore) {
- if (totalEpisodeCount > previousTotalEpisodes) {
- isLoadingMore = false;
- previousTotalEpisodes = totalEpisodeCount;
- }
- }
-
- /* Determine if the user scrolled to the bottom and loading more episodes is not already in progress */
- if (!isLoadingMore && (totalEpisodeCount - visibleEpisodeCount)
- <= (firstVisibleEpisode + VISIBLE_EPISODES_SCROLL_THRESHOLD)) {
-
+ public void onScrolled(@NonNull RecyclerView view, int deltaX, int deltaY) {
+ super.onScrolled(view, deltaX, deltaY);
+ if (!isLoadingMore && hasMoreItems && recyclerView.isScrolledToBottom()) {
/* The end of the list has been reached. Load more data. */
page++;
loadMoreItems();
@@ -312,26 +247,35 @@ public abstract class EpisodesListFragment extends Fragment {
if (disposable != null) {
disposable.dispose();
}
- loadingMore.setVisibility(View.VISIBLE);
+ isLoadingMore = true;
+ loadingMoreView.setVisibility(View.VISIBLE);
disposable = Observable.fromCallable(this::loadMoreData)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(data -> {
- loadingMore.setVisibility(View.GONE);
- progLoading.setVisibility(View.GONE);
+ if (data.size() < EPISODES_PER_PAGE) {
+ hasMoreItems = false;
+ }
episodes.addAll(data);
onFragmentLoaded(episodes);
- }, error -> Log.e(TAG, Log.getStackTraceString(error)));
+ }, error -> Log.e(TAG, Log.getStackTraceString(error)),
+ () -> {
+ recyclerView.post(() -> isLoadingMore = false); // Make sure to not always load 2 pages at once
+ progLoading.setVisibility(View.GONE);
+ loadingMoreView.setVisibility(View.GONE);
+ });
}
protected void onFragmentLoaded(List<FeedItem> episodes) {
+ boolean restoreScrollPosition = listAdapter.getItemCount() == 0;
if (episodes.size() == 0) {
createRecycleAdapter(recyclerView, emptyView);
} else {
listAdapter.updateItems(episodes);
}
-
- restoreScrollPosition();
+ if (restoreScrollPosition) {
+ recyclerView.restoreScrollPosition(getPrefName());
+ }
if (isMenuVisible && isUpdatingFeeds != updateRefreshMenuItemChecker.isRefreshing()) {
requireActivity().invalidateOptionsMenu();
}
@@ -431,6 +375,7 @@ public abstract class EpisodesListFragment extends Fragment {
.observeOn(AndroidSchedulers.mainThread())
.subscribe(data -> {
progLoading.setVisibility(View.GONE);
+ hasMoreItems = true;
episodes = data;
onFragmentLoaded(episodes);
}, error -> Log.e(TAG, Log.getStackTraceString(error)));
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-19 07:29:29 +0000