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Fix volume panel hang

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SliceLiveData changed its behavior, if slice is null, it will not
notify LiveData observer but callback to onErrorListener. We only
reduce PanelSlicesLoaderCountdownLatch in LiveData observer.
Therefore the error slice caused PanelSlicesLoaderCountdownLatch
never count to 0, the UI was not displayed. It is solved by reducing
PanelSlicesLoaderCountdownLatch in onErrorListener and also not return
null in MediaOutputIndicatorSlice.

Test: manual
Fixes: 141084035
Change-Id: Iddb2dbdc0e0d2ac3e26071960bb667937f181121
This commit is contained in:
Raff Tsai
2019-09-17 23:47:07 +08:00
parent a9177ca0eb
commit d9cfbaf3b5
6 changed files with 67 additions and 41 deletions
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59
src/com/android/settings/panel/PanelFragment.java
View File

@@ -53,9 +53,10 @@ import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
import com.google.android.setupdesign.DividerItemDecoration;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
public class PanelFragment extends Fragment {
@@ -86,7 +87,7 @@ public class PanelFragment extends Fragment {
private MetricsFeatureProvider mMetricsProvider;
private String mPanelClosedKey;
private final List<LiveData<Slice>> mSliceLiveData = new ArrayList<>();
private final Map<Uri, LiveData<Slice>> mSliceLiveData = new LinkedHashMap<>();
@VisibleForTesting
PanelSlicesLoaderCountdownLatch mPanelSlicesLoaderCountdownLatch;
@@ -97,14 +98,14 @@ public class PanelFragment extends Fragment {
private final ViewTreeObserver.OnGlobalLayoutListener mOnGlobalLayoutListener =
new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
animateIn();
if (mPanelSlices != null) {
mPanelSlices.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
}
};
@Override
public void onGlobalLayout() {
animateIn();
if (mPanelSlices != null) {
mPanelSlices.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
}
};
private PanelSlicesAdapter mAdapter;
@@ -121,9 +122,9 @@ public class PanelFragment extends Fragment {
* Animate the old panel out from the screen, then update the panel with new content once the
* animation is done.
* <p>
* Takes the entire panel and animates out from behind the navigation bar.
* Takes the entire panel and animates out from behind the navigation bar.
* <p>
* Call createPanelContent() once animation end.
* Call createPanelContent() once animation end.
*/
void updatePanelWithAnimation() {
final View panelContent = mLayoutView.findViewById(R.id.panel_container);
@@ -210,10 +211,14 @@ public class PanelFragment extends Fragment {
mPanelSlicesLoaderCountdownLatch = new PanelSlicesLoaderCountdownLatch(sliceUris.size());
for (Uri uri : sliceUris) {
final LiveData<Slice> sliceLiveData = SliceLiveData.fromUri(getActivity(), uri);
final LiveData<Slice> sliceLiveData = SliceLiveData.fromUri(getActivity(), uri,
(int type, Throwable source)-> {
removeSliceLiveData(uri);
mPanelSlicesLoaderCountdownLatch.markSliceLoaded(uri);
});
// Add slice first to make it in order. Will remove it later if there's an error.
mSliceLiveData.add(sliceLiveData);
mSliceLiveData.put(uri, sliceLiveData);
sliceLiveData.observe(getViewLifecycleOwner(), slice -> {
// If the Slice has already loaded, do nothing.
@@ -238,12 +243,7 @@ public class PanelFragment extends Fragment {
*/
final SliceMetadata metadata = SliceMetadata.from(getActivity(), slice);
if (slice == null || metadata.isErrorSlice()) {
final List<String> whiteList = Arrays.asList(
getResources().getStringArray(
R.array.config_panel_keep_observe_uri));
if (!whiteList.contains(uri.toString())) {
mSliceLiveData.remove(sliceLiveData);
}
removeSliceLiveData(uri);
mPanelSlicesLoaderCountdownLatch.markSliceLoaded(uri);
} else if (metadata.getLoadingState() == SliceMetadata.LOADED_ALL) {
mPanelSlicesLoaderCountdownLatch.markSliceLoaded(uri);
@@ -260,12 +260,21 @@ public class PanelFragment extends Fragment {
}
}
private void removeSliceLiveData(Uri uri) {
final List<String> whiteList = Arrays.asList(
getResources().getStringArray(
R.array.config_panel_keep_observe_uri));
if (!whiteList.contains(uri.toString())) {
mSliceLiveData.remove(uri);
}
}
/**
* When all of the Slices have loaded for the first time, then we can setup the
* {@link RecyclerView}.
* <p>
* When the Recyclerview has been laid out, we can begin the animation with the
* {@link mOnGlobalLayoutListener}, which calls {@link #animateIn()}.
* When the Recyclerview has been laid out, we can begin the animation with the
* {@link mOnGlobalLayoutListener}, which calls {@link #animateIn()}.
*/
private void loadPanelWhenReady() {
if (mPanelSlicesLoaderCountdownLatch.isPanelReadyToLoad()) {
@@ -286,9 +295,9 @@ public class PanelFragment extends Fragment {
/**
* Animate a Panel onto the screen.
* <p>
* Takes the entire panel and animates in from behind the navigation bar.
* Takes the entire panel and animates in from behind the navigation bar.
* <p>
* Relies on the Panel being having a fixed height to begin the animation.
* Relies on the Panel being having a fixed height to begin the animation.
*/
private void animateIn() {
final View panelContent = mLayoutView.findViewById(R.id.panel_container);
@@ -319,7 +328,7 @@ public class PanelFragment extends Fragment {
animatorSet.setInterpolator(new DecelerateInterpolator());
animatorSet.playTogether(
ObjectAnimator.ofFloat(sheet, View.TRANSLATION_Y, startY, endY),
ObjectAnimator.ofFloat(sheet, View.ALPHA, startAlpha,endAlpha));
ObjectAnimator.ofFloat(sheet, View.ALPHA, startAlpha, endAlpha));
return animatorSet;
}