Moving some initializations to the background thread
HandlerThread.getLooper blocks until the thread is ready. Instead
moving all looper dependency to the new thread itself.
Change-Id: I240e8c56b855a991433a7fe93875059e6dab146b
diff --git a/quickstep/src/com/android/launcher3/model/WellbeingModel.java b/quickstep/src/com/android/launcher3/model/WellbeingModel.java
index f92b3e3..a9fc1aa 100644
--- a/quickstep/src/com/android/launcher3/model/WellbeingModel.java
+++ b/quickstep/src/com/android/launcher3/model/WellbeingModel.java
@@ -18,8 +18,7 @@
import static android.content.ContentResolver.SCHEME_CONTENT;
-import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
-import static com.android.launcher3.util.Executors.createAndStartNewLooper;
+import static com.android.launcher3.Utilities.newContentObserver;
import android.annotation.TargetApi;
import android.app.RemoteAction;
@@ -35,7 +34,7 @@
import android.os.Bundle;
import android.os.DeadObjectException;
import android.os.Handler;
-import android.os.Message;
+import android.os.Looper;
import android.os.Process;
import android.os.UserHandle;
import android.text.TextUtils;
@@ -43,7 +42,7 @@
import android.util.Log;
import androidx.annotation.MainThread;
-import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
import androidx.annotation.WorkerThread;
import com.android.launcher3.BaseDraggingActivity;
@@ -55,6 +54,7 @@
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.popup.RemoteActionShortcut;
import com.android.launcher3.popup.SystemShortcut;
+import com.android.launcher3.util.BgObjectWithLooper;
import com.android.launcher3.util.MainThreadInitializedObject;
import com.android.launcher3.util.PackageManagerHelper;
import com.android.launcher3.util.Preconditions;
@@ -68,15 +68,11 @@
* Data model for digital wellbeing status of apps.
*/
@TargetApi(Build.VERSION_CODES.Q)
-public final class WellbeingModel {
+public final class WellbeingModel extends BgObjectWithLooper {
private static final String TAG = "WellbeingModel";
private static final int[] RETRY_TIMES_MS = {5000, 15000, 30000};
private static final boolean DEBUG = false;
- private static final int MSG_PACKAGE_ADDED = 1;
- private static final int MSG_PACKAGE_REMOVED = 2;
- private static final int MSG_FULL_REFRESH = 3;
-
private static final int UNKNOWN_MINIMAL_DEVICE_STATE = 0;
private static final int IN_MINIMAL_DEVICE = 2;
@@ -98,9 +94,9 @@
private final Context mContext;
private final String mWellbeingProviderPkg;
- private final Handler mWorkerHandler;
- private final ContentObserver mContentObserver;
+ private Handler mWorkerHandler;
+ private ContentObserver mContentObserver;
private final Object mModelLock = new Object();
// Maps the action Id to the corresponding RemoteAction
@@ -111,60 +107,67 @@
private WellbeingModel(final Context context) {
mContext = context;
- mWorkerHandler =
- new Handler(createAndStartNewLooper("WellbeingHandler"), this::handleMessage);
-
mWellbeingProviderPkg = mContext.getString(R.string.wellbeing_provider_pkg);
- mContentObserver = new ContentObserver(MAIN_EXECUTOR.getHandler()) {
- @Override
- public void onChange(boolean selfChange, Uri uri) {
- if (DEBUG || mIsInTest) {
- Log.d(TAG, "ContentObserver.onChange() called with: selfChange = ["
- + selfChange + "], uri = [" + uri + "]");
- }
- Preconditions.assertUIThread();
+ initializeInBackground("WellbeingHandler");
+ }
- if (uri.getPath().contains(PATH_ACTIONS)) {
- // Wellbeing reports that app actions have changed.
- updateWellbeingData();
- } else if (uri.getPath().contains(PATH_MINIMAL_DEVICE)) {
- // Wellbeing reports that minimal device state or config is changed.
- updateLauncherModel(context);
- }
- }
- };
- FeatureFlags.ENABLE_MINIMAL_DEVICE.addChangeListener(mContext, () ->
- updateLauncherModel(context));
-
+ @Override
+ protected void onInitialized(Looper looper) {
+ mWorkerHandler = new Handler(looper);
+ mContentObserver = newContentObserver(mWorkerHandler, this::onWellbeingUriChanged);
if (!TextUtils.isEmpty(mWellbeingProviderPkg)) {
- context.registerReceiver(
- new SimpleBroadcastReceiver(this::onWellbeingProviderChanged),
+ mContext.registerReceiver(
+ new SimpleBroadcastReceiver(t -> restartObserver()),
PackageManagerHelper.getPackageFilter(mWellbeingProviderPkg,
Intent.ACTION_PACKAGE_ADDED, Intent.ACTION_PACKAGE_CHANGED,
Intent.ACTION_PACKAGE_REMOVED, Intent.ACTION_PACKAGE_DATA_CLEARED,
- Intent.ACTION_PACKAGE_RESTARTED));
+ Intent.ACTION_PACKAGE_RESTARTED),
+ null, mWorkerHandler);
IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
filter.addDataScheme("package");
- context.registerReceiver(new SimpleBroadcastReceiver(this::onAppPackageChanged),
- filter);
+ mContext.registerReceiver(new SimpleBroadcastReceiver(this::onAppPackageChanged),
+ filter, null, mWorkerHandler);
restartObserver();
}
}
+ @WorkerThread
+ private void onWellbeingUriChanged(Uri uri) {
+ Preconditions.assertNonUiThread();
+ if (DEBUG || mIsInTest) {
+ Log.d(TAG, "ContentObserver.onChange() called with: uri = [" + uri + "]");
+ }
+ if (uri.getPath().contains(PATH_ACTIONS)) {
+ // Wellbeing reports that app actions have changed.
+ updateAllPackages();
+ } else if (uri.getPath().contains(PATH_MINIMAL_DEVICE)) {
+ // Wellbeing reports that minimal device state or config is changed.
+ if (!FeatureFlags.ENABLE_MINIMAL_DEVICE.get()) {
+ return;
+ }
+ final Bundle extras = new Bundle();
+ String dbFile;
+ if (isInMinimalDeviceMode()) {
+ dbFile = DB_NAME_MINIMAL_DEVICE;
+ extras.putString(LauncherProvider.KEY_LAYOUT_PROVIDER_AUTHORITY,
+ mWellbeingProviderPkg + ".api");
+ } else {
+ dbFile = InvariantDeviceProfile.INSTANCE.get(mContext).dbFile;
+ }
+ LauncherSettings.Settings.call(mContext.getContentResolver(),
+ LauncherSettings.Settings.METHOD_SWITCH_DATABASE,
+ dbFile, extras);
+ }
+ }
+
public void setInTest(boolean inTest) {
mIsInTest = inTest;
}
- protected void onWellbeingProviderChanged(Intent intent) {
- if (DEBUG || mIsInTest) {
- Log.d(TAG, "Changes to Wellbeing package: intent = [" + intent + "]");
- }
- restartObserver();
- }
-
+ @WorkerThread
private void restartObserver() {
final ContentResolver resolver = mContext.getContentResolver();
resolver.unregisterContentObserver(mContentObserver);
@@ -179,7 +182,7 @@
Log.e(TAG, "Failed to register content observer for " + actionsUri + ": " + e);
if (mIsInTest) throw new RuntimeException(e);
}
- updateWellbeingData();
+ updateAllPackages();
}
@MainThread
@@ -212,39 +215,6 @@
}
}
- private void updateWellbeingData() {
- mWorkerHandler.sendEmptyMessage(MSG_FULL_REFRESH);
- }
-
- private void updateLauncherModel(@NonNull final Context context) {
- if (!FeatureFlags.ENABLE_MINIMAL_DEVICE.get()) {
- reloadLauncherInNormalMode(context);
- return;
- }
- mWorkerHandler.post(() -> {
- if (isInMinimalDeviceMode()) {
- reloadLauncherInMinimalMode(context);
- } else {
- reloadLauncherInNormalMode(context);
- }
- });
- }
-
- private void reloadLauncherInNormalMode(@NonNull final Context context) {
- LauncherSettings.Settings.call(context.getContentResolver(),
- LauncherSettings.Settings.METHOD_SWITCH_DATABASE,
- InvariantDeviceProfile.INSTANCE.get(context).dbFile);
- }
-
- private void reloadLauncherInMinimalMode(@NonNull final Context context) {
- final Bundle extras = new Bundle();
- extras.putString(LauncherProvider.KEY_LAYOUT_PROVIDER_AUTHORITY,
- mWellbeingProviderPkg + ".api");
- LauncherSettings.Settings.call(context.getContentResolver(),
- LauncherSettings.Settings.METHOD_SWITCH_DATABASE,
- DB_NAME_MINIMAL_DEVICE, extras);
- }
-
private Uri.Builder apiBuilder() {
return new Uri.Builder()
.scheme(SCHEME_CONTENT)
@@ -277,7 +247,8 @@
return false;
}
- private boolean updateActions(String... packageNames) {
+ @WorkerThread
+ private boolean updateActions(String[] packageNames) {
if (packageNames.length == 0) {
return true;
}
@@ -340,68 +311,51 @@
return true;
}
- private boolean handleMessage(Message msg) {
- switch (msg.what) {
- case MSG_PACKAGE_REMOVED: {
- String packageName = (String) msg.obj;
- mWorkerHandler.removeCallbacksAndMessages(packageName);
- synchronized (mModelLock) {
- mPackageToActionId.remove(packageName);
- }
- return true;
- }
- case MSG_PACKAGE_ADDED: {
- String packageName = (String) msg.obj;
- mWorkerHandler.removeCallbacksAndMessages(packageName);
- if (!updateActions(packageName)) {
- scheduleRefreshRetry(msg);
- }
- return true;
- }
+ @WorkerThread
+ private void updateActionsWithRetry(int retryCount, @Nullable String packageName) {
+ String[] packageNames = TextUtils.isEmpty(packageName)
+ ? mContext.getSystemService(LauncherApps.class)
+ .getActivityList(null, Process.myUserHandle()).stream()
+ .map(li -> li.getApplicationInfo().packageName).distinct()
+ .toArray(String[]::new)
+ : new String[] { packageName };
- case MSG_FULL_REFRESH: {
- // Remove all existing messages
- mWorkerHandler.removeCallbacksAndMessages(null);
- final String[] packageNames = mContext.getSystemService(LauncherApps.class)
- .getActivityList(null, Process.myUserHandle()).stream()
- .map(li -> li.getApplicationInfo().packageName).distinct()
- .toArray(String[]::new);
- if (!updateActions(packageNames)) {
- scheduleRefreshRetry(msg);
- }
- return true;
- }
+ mWorkerHandler.removeCallbacksAndMessages(packageName);
+ if (updateActions(packageNames)) {
+ return;
}
- return false;
- }
-
- private void scheduleRefreshRetry(Message originalMsg) {
- int retryCount = originalMsg.arg1;
if (retryCount >= RETRY_TIMES_MS.length) {
// To many retries, skip
return;
}
-
- Message msg = Message.obtain(originalMsg);
- msg.arg1 = retryCount + 1;
- mWorkerHandler.sendMessageDelayed(msg, RETRY_TIMES_MS[retryCount]);
+ mWorkerHandler.postDelayed(
+ () -> updateActionsWithRetry(retryCount + 1, packageName),
+ packageName, RETRY_TIMES_MS[retryCount]);
}
+ @WorkerThread
+ private void updateAllPackages() {
+ updateActionsWithRetry(0, null);
+ }
+
+ @WorkerThread
private void onAppPackageChanged(Intent intent) {
if (DEBUG || mIsInTest) Log.d(TAG, "Changes in apps: intent = [" + intent + "]");
- Preconditions.assertUIThread();
+ Preconditions.assertNonUiThread();
final String packageName = intent.getData().getSchemeSpecificPart();
if (packageName == null || packageName.length() == 0) {
// they sent us a bad intent
return;
}
-
final String action = intent.getAction();
if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) {
- Message.obtain(mWorkerHandler, MSG_PACKAGE_REMOVED, packageName).sendToTarget();
+ mWorkerHandler.removeCallbacksAndMessages(packageName);
+ synchronized (mModelLock) {
+ mPackageToActionId.remove(packageName);
+ }
} else if (Intent.ACTION_PACKAGE_ADDED.equals(action)) {
- Message.obtain(mWorkerHandler, MSG_PACKAGE_ADDED, packageName).sendToTarget();
+ updateActionsWithRetry(0, packageName);
}
}
diff --git a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
index de44e07..5f0ef83 100644
--- a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
+++ b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
@@ -23,6 +23,7 @@
import static android.view.Surface.ROTATION_270;
import static android.view.Surface.ROTATION_90;
+import static com.android.launcher3.Utilities.newContentObserver;
import static com.android.launcher3.states.RotationHelper.ALLOW_ROTATION_PREFERENCE_KEY;
import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
import static com.android.quickstep.SysUINavigationMode.Mode.TWO_BUTTONS;
@@ -73,12 +74,9 @@
private static final boolean DEBUG = false;
private static final String DELIMITER_DOT = "\\.";
- private ContentObserver mSystemAutoRotateObserver = new ContentObserver(new Handler()) {
- @Override
- public void onChange(boolean selfChange) {
- updateAutoRotateSetting();
- }
- };
+ private ContentObserver mSystemAutoRotateObserver =
+ newContentObserver(new Handler(), t -> updateAutoRotateSetting());
+
@Retention(SOURCE)
@IntDef({ROTATION_0, ROTATION_90, ROTATION_180, ROTATION_270})
public @interface SurfaceRotation {}
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 43ccb79..1e023df 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -34,6 +34,7 @@
import android.content.pm.ResolveInfo;
import android.content.pm.ShortcutInfo;
import android.content.res.Resources;
+import android.database.ContentObserver;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.Matrix;
@@ -44,6 +45,7 @@
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.InsetDrawable;
+import android.net.Uri;
import android.os.Build;
import android.os.DeadObjectException;
import android.os.Handler;
@@ -83,6 +85,7 @@
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
+import java.util.function.Consumer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
@@ -661,6 +664,18 @@
return slop * slop;
}
+ /**
+ * Helper method to create a content provider
+ */
+ public static ContentObserver newContentObserver(Handler handler, Consumer<Uri> command) {
+ return new ContentObserver(handler) {
+ @Override
+ public void onChange(boolean selfChange, Uri uri) {
+ command.accept(uri);
+ }
+ };
+ }
+
private static class FixedSizeEmptyDrawable extends ColorDrawable {
private final int mSize;
diff --git a/src/com/android/launcher3/states/RotationHelper.java b/src/com/android/launcher3/states/RotationHelper.java
index 5a60f53..ecf4f36 100644
--- a/src/com/android/launcher3/states/RotationHelper.java
+++ b/src/com/android/launcher3/states/RotationHelper.java
@@ -21,14 +21,9 @@
import static android.util.DisplayMetrics.DENSITY_DEVICE_STABLE;
import android.app.Activity;
-import android.content.ContentResolver;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.content.res.Resources;
-import android.database.ContentObserver;
-import android.os.Handler;
-import android.provider.Settings;
-import android.util.Log;
import com.android.launcher3.R;
import com.android.launcher3.Utilities;
@@ -43,16 +38,6 @@
public static final String ALLOW_ROTATION_PREFERENCE_KEY = "pref_allowRotation";
- private final ContentResolver mContentResolver;
- private boolean mSystemAutoRotateEnabled;
-
- private ContentObserver mSystemAutoRotateObserver = new ContentObserver(new Handler()) {
- @Override
- public void onChange(boolean selfChange) {
- updateAutoRotateSetting();
- }
- };
-
public static boolean getAllowRotationDefaultValue() {
// If the device's pixel density was scaled (usually via settings for A11y), use the
// original dimensions to determine if rotation is allowed of not.
@@ -106,20 +91,6 @@
} else {
mSharedPrefs = null;
}
-
- mContentResolver = activity.getContentResolver();
- }
-
- private void updateAutoRotateSetting() {
- int autoRotateEnabled = 0;
- try {
- autoRotateEnabled = Settings.System.getInt(mContentResolver,
- Settings.System.ACCELEROMETER_ROTATION);
- } catch (Settings.SettingNotFoundException e) {
- Log.e(TAG, "autorotate setting not found", e);
- }
-
- mSystemAutoRotateEnabled = autoRotateEnabled == 1;
}
@Override
@@ -129,7 +100,6 @@
getAllowRotationDefaultValue());
if (mHomeRotationEnabled != wasRotationEnabled) {
notifyChange();
- updateAutoRotateSetting();
}
}
@@ -165,11 +135,6 @@
if (!mInitialized) {
mInitialized = true;
notifyChange();
-
- mContentResolver.registerContentObserver(
- Settings.System.getUriFor(Settings.System.ACCELEROMETER_ROTATION),
- false, mSystemAutoRotateObserver);
- updateAutoRotateSetting();
}
}
@@ -179,7 +144,6 @@
if (mSharedPrefs != null) {
mSharedPrefs.unregisterOnSharedPreferenceChangeListener(this);
}
- mContentResolver.unregisterContentObserver(mSystemAutoRotateObserver);
}
}
@@ -225,9 +189,8 @@
@Override
public String toString() {
return String.format("[mStateHandlerRequest=%d, mCurrentStateRequest=%d,"
- + " mLastActivityFlags=%d, mIgnoreAutoRotateSettings=%b, mHomeRotationEnabled=%b,"
- + " mSystemAutoRotateEnabled=%b]",
+ + " mLastActivityFlags=%d, mIgnoreAutoRotateSettings=%b, mHomeRotationEnabled=%b]",
mStateHandlerRequest, mCurrentStateRequest, mLastActivityFlags,
- mIgnoreAutoRotateSettings, mHomeRotationEnabled, mSystemAutoRotateEnabled);
+ mIgnoreAutoRotateSettings, mHomeRotationEnabled);
}
}
diff --git a/src/com/android/launcher3/util/BgObjectWithLooper.java b/src/com/android/launcher3/util/BgObjectWithLooper.java
new file mode 100644
index 0000000..1483c43
--- /dev/null
+++ b/src/com/android/launcher3/util/BgObjectWithLooper.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util;
+
+import android.os.Looper;
+
+import androidx.annotation.WorkerThread;
+
+/**
+ * Utility class to define an object which does most of it's processing on a
+ * dedicated background thread.
+ */
+public abstract class BgObjectWithLooper {
+
+ /**
+ * Start initialization of the object
+ */
+ public final void initializeInBackground(String threadName) {
+ new Thread(this::runOnThread, threadName).start();
+ }
+
+ private void runOnThread() {
+ Looper.prepare();
+ onInitialized(Looper.myLooper());
+ Looper.loop();
+ }
+
+ /**
+ * Called on the background thread to handle initialization
+ */
+ @WorkerThread
+ protected abstract void onInitialized(Looper looper);
+}