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Merge "Cache and reuses LauncherAppWidgetHostView when launcher resumes" into tm-qpr-dev

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This commit is contained in:
Pinyao Ting
2022-06-27 20:51:22 +00:00
committed by Android (Google) Code Review
parent c4405218ca e5dbb75acd
commit 6c7361fb46
3 changed files with 73 additions and 13 deletions
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src/com/android/launcher3/config/FeatureFlags.java
+4
View File
@@ -277,6 +277,10 @@ public final class FeatureFlags {
"ENABLE_DISMISS_PREDICTION_UNDO", false,
"Show an 'Undo' snackbar when users dismiss a predicted hotseat item");
public static final BooleanFlag ENABLE_CACHED_WIDGET = getDebugFlag(
"ENABLE_CACHED_WIDGET", true,
"Show previously cached widgets as opposed to deferred widget where available");
public static void initialize(Context context) {
synchronized (sDebugFlags) {
for (DebugFlag flag : sDebugFlags) {
src/com/android/launcher3/widget/LauncherAppWidgetHost.java
+55 -6
View File
@@ -28,6 +28,7 @@ import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.util.SparseArray;
import android.widget.RemoteViews;
import android.widget.Toast;
import androidx.annotation.Nullable;
@@ -37,6 +38,7 @@ import com.android.launcher3.BaseDraggingActivity;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.R;
import com.android.launcher3.Utilities;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.model.WidgetsModel;
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.testing.TestLogging;
@@ -70,13 +72,14 @@ public class LauncherAppWidgetHost extends AppWidgetHost {
private final ArrayList<ProviderChangedListener> mProviderChangeListeners = new ArrayList<>();
private final SparseArray<LauncherAppWidgetHostView> mViews = new SparseArray<>();
private final SparseArray<PendingAppWidgetHostView> mPendingViews = new SparseArray<>();
private final SparseArray<LauncherAppWidgetHostView> mDeferredViews = new SparseArray<>();
private final SparseArray<RemoteViews> mCachedRemoteViews = new SparseArray<>();
private final Context mContext;
private int mFlags = FLAG_STATE_IS_NORMAL;
private IntConsumer mAppWidgetRemovedCallback = null;
public LauncherAppWidgetHost(Context context) {
this(context, null);
}
@@ -95,6 +98,11 @@ public class LauncherAppWidgetHost extends AppWidgetHost {
if (mPendingViews.get(appWidgetId) != null) {
view = mPendingViews.get(appWidgetId);
mPendingViews.remove(appWidgetId);
} else if (mDeferredViews.get(appWidgetId) != null) {
// In case the widget view is deferred, we will simply return the deferred view as
// opposed to instantiate a new instance of LauncherAppWidgetHostView since launcher
// already added the former to the workspace.
view = mDeferredViews.get(appWidgetId);
} else {
view = new LauncherAppWidgetHostView(context);
}
@@ -120,12 +128,25 @@ public class LauncherAppWidgetHost extends AppWidgetHost {
// widgets upon bind anyway. See issue 14255011 for more context.
}
// We go in reverse order and inflate any deferred widget
// We go in reverse order and inflate any deferred or cached widget
for (int i = mViews.size() - 1; i >= 0; i--) {
LauncherAppWidgetHostView view = mViews.valueAt(i);
if (view instanceof DeferredAppWidgetHostView) {
view.reInflate();
}
if (FeatureFlags.ENABLE_CACHED_WIDGET.get()) {
final int appWidgetId = mViews.keyAt(i);
if (view == mDeferredViews.get(appWidgetId)) {
// If the widget view was deferred, we'll need to call super.createView here
// to make the binder call to system process to fetch cumulative updates to this
// widget, as well as setting up this view for future updates.
super.createView(view.mLauncher, appWidgetId, view.getAppWidgetInfo());
// At this point #onCreateView should have been called, which in turn returned
// the deferred view. There's no reason to keep the reference anymore, so we
// removed it here.
mDeferredViews.remove(appWidgetId);
}
}
}
}
@@ -221,10 +242,28 @@ public class LauncherAppWidgetHost extends AppWidgetHost {
CustomWidgetManager.INSTANCE.get(context).onViewCreated(lahv);
return lahv;
} else if ((mFlags & FLAG_LISTENING) == 0) {
DeferredAppWidgetHostView view = new DeferredAppWidgetHostView(context);
view.setAppWidget(appWidgetId, appWidget);
mViews.put(appWidgetId, view);
return view;
// Since the launcher hasn't started listening to widget updates, we can't simply call
// super.createView here because the later will make a binder call to retrieve
// RemoteViews from system process.
// TODO: have launcher always listens to widget updates in background so that this
// check can be removed altogether.
if (FeatureFlags.ENABLE_CACHED_WIDGET.get()
&& mCachedRemoteViews.get(appWidgetId) != null) {
// We've found RemoteViews from cache for this widget, so we will instantiate a
// widget host view and populate it with the cached RemoteViews.
final LauncherAppWidgetHostView view = new LauncherAppWidgetHostView(context);
view.setAppWidget(appWidgetId, appWidget);
view.updateAppWidget(mCachedRemoteViews.get(appWidgetId));
mDeferredViews.put(appWidgetId, view);
mViews.put(appWidgetId, view);
return view;
} else {
// When cache misses, a placeholder for the widget will be returned instead.
DeferredAppWidgetHostView view = new DeferredAppWidgetHostView(context);
view.setAppWidget(appWidgetId, appWidget);
mViews.put(appWidgetId, view);
return view;
}
} else {
try {
return super.createView(context, appWidgetId, appWidget);
@@ -281,6 +320,16 @@ public class LauncherAppWidgetHost extends AppWidgetHost {
@Override
public void clearViews() {
super.clearViews();
if (FeatureFlags.ENABLE_CACHED_WIDGET.get()) {
// First, we clear any previously cached content from existing widgets
mCachedRemoteViews.clear();
// Then we proceed to cache the content from the widgets
for (int i = 0; i < mViews.size(); i++) {
final int appWidgetId = mViews.keyAt(i);
final LauncherAppWidgetHostView view = mViews.get(appWidgetId);
mCachedRemoteViews.put(appWidgetId, view.mLastRemoteViews);
}
}
mViews.clear();
}
src/com/android/launcher3/widget/LauncherAppWidgetHostView.java
+14 -7
View File
@@ -43,6 +43,7 @@ import com.android.launcher3.CheckLongPressHelper;
import com.android.launcher3.Launcher;
import com.android.launcher3.R;
import com.android.launcher3.Utilities;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.dragndrop.DragLayer;
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.model.data.LauncherAppWidgetInfo;
@@ -85,7 +86,7 @@ public class LauncherAppWidgetHostView extends BaseLauncherAppWidgetHostView
private Runnable mAutoAdvanceRunnable;
private long mDeferUpdatesUntilMillis = 0;
private RemoteViews mDeferredRemoteViews;
RemoteViews mLastRemoteViews;
private boolean mHasDeferredColorChange = false;
private @Nullable SparseIntArray mDeferredColorChange = null;
@@ -150,11 +151,18 @@ public class LauncherAppWidgetHostView extends BaseLauncherAppWidgetHostView
TRACE_METHOD_NAME + getAppWidgetInfo().provider, getAppWidgetId());
mTrackingWidgetUpdate = false;
}
if (isDeferringUpdates()) {
mDeferredRemoteViews = remoteViews;
return;
if (FeatureFlags.ENABLE_CACHED_WIDGET.get()) {
mLastRemoteViews = remoteViews;
if (isDeferringUpdates()) {
return;
}
} else {
if (isDeferringUpdates()) {
mLastRemoteViews = remoteViews;
return;
}
mLastRemoteViews = null;
}
mDeferredRemoteViews = null;
super.updateAppWidget(remoteViews);
@@ -218,8 +226,7 @@ public class LauncherAppWidgetHostView extends BaseLauncherAppWidgetHostView
SparseIntArray deferredColors;
boolean hasDeferredColors;
mDeferUpdatesUntilMillis = 0;
remoteViews = mDeferredRemoteViews;
mDeferredRemoteViews = null;
remoteViews = mLastRemoteViews;
deferredColors = mDeferredColorChange;
hasDeferredColors = mHasDeferredColorChange;
mDeferredColorChange = null;