Listening for system changes to active recent tasks. (Bug 14260718) (9f49df93) · Commits · e / os / android_frameworks_base

packages/SystemUI/res/values/config.xml

+2 −0

Original line number	Diff line number	Diff line
		@@ -121,6 +121,8 @@
		<integer name="recents_animate_task_bar_exit_duration">150</integer>
		<!-- The animation duration for animating in the info pane. -->
		<integer name="recents_animate_task_view_info_pane_duration">150</integer>
		<!-- The animation duration for animating the removal of a task view. -->
		<integer name="recents_animate_task_view_remove_duration">150</integer>
		<!-- The minimum alpha for the dim applied to cards that go deeper into the stack. -->
		<integer name="recents_max_task_stack_view_dim">96</integer>
		<!-- Transposes the search bar layout in landscape -->

packages/SystemUI/res/values/dimens.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -233,6 +233,9 @@
		<!-- The translation in the Z index for each task above the last task. -->
		<dimen name="recents_task_view_z_increment">5dp</dimen>

		<!-- The amount to translate when animating the removal of a task. -->
		<dimen name="recents_task_view_remove_anim_translation_x">75dp</dimen>

		<!-- The amount of space a user has to scroll to dismiss any info panes. -->
		<dimen name="recents_task_stack_scroll_dismiss_info_pane_distance">50dp</dimen>

packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java

+7 −1

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import android.appwidget.AppWidgetHostView;
		import android.appwidget.AppWidgetManager;
		import android.appwidget.AppWidgetProviderInfo;
		import android.content.BroadcastReceiver;
		import android.content.ComponentName;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		@@ -37,6 +38,7 @@ import com.android.systemui.recents.model.TaskStack;
		import com.android.systemui.recents.views.RecentsView;

		import java.util.ArrayList;
		import java.util.Set;

		/** Our special app widget host */
		class RecentsAppWidgetHost extends AppWidgetHost {
		@@ -308,6 +310,9 @@ public class RecentsActivity extends Activity implements RecentsView.RecentsView
		filter = new IntentFilter();
		filter.addAction(Intent.ACTION_SCREEN_OFF);
		registerReceiver(mScreenOffReceiver, filter);

		// Register any broadcast receivers for the task loader
		RecentsTaskLoader.getInstance().registerReceivers(this, mRecentsView);
		}

		@Override
		@@ -320,6 +325,7 @@ public class RecentsActivity extends Activity implements RecentsView.RecentsView
		// Unregister any broadcast receivers we have registered
		unregisterReceiver(mServiceBroadcastReceiver);
		unregisterReceiver(mScreenOffReceiver);
		RecentsTaskLoader.getInstance().unregisterReceivers();
		}

		@Override

packages/SystemUI/src/com/android/systemui/recents/RecentsConfiguration.java

+6 −0

Original line number	Diff line number	Diff line
		@@ -49,6 +49,8 @@ public class RecentsConfiguration {
		public int taskStackScrollDismissInfoPaneDistance;
		public int taskStackMaxDim;
		public int taskViewInfoPaneAnimDuration;
		public int taskViewRemoveAnimDuration;
		public int taskViewRemoveAnimTranslationXPx;
		public int taskViewTranslationZMinPx;
		public int taskViewTranslationZIncrementPx;
		public int taskViewRoundedCornerRadiusPx;
		@@ -108,6 +110,10 @@ public class RecentsConfiguration {
		taskStackMaxDim = res.getInteger(R.integer.recents_max_task_stack_view_dim);
		taskViewInfoPaneAnimDuration =
		res.getInteger(R.integer.recents_animate_task_view_info_pane_duration);
		taskViewRemoveAnimDuration =
		res.getInteger(R.integer.recents_animate_task_view_remove_duration);
		taskViewRemoveAnimTranslationXPx =
		res.getDimensionPixelSize(R.dimen.recents_task_view_remove_anim_translation_x);
		taskViewRoundedCornerRadiusPx =
		res.getDimensionPixelSize(R.dimen.recents_task_view_rounded_corners_radius);
		taskViewTranslationZMinPx = res.getDimensionPixelSize(R.dimen.recents_task_view_z_min);

packages/SystemUI/src/com/android/systemui/recents/RecentsPackageMonitor.java

0 → 100644

+112 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2014 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.systemui.recents;

		import android.app.ActivityManager;
		import android.content.ComponentName;
		import android.content.Context;
		import android.os.Looper;
		import com.android.internal.content.PackageMonitor;

		import java.util.HashSet;
		import java.util.List;
		import java.util.Set;

		/**
		* The package monitor listens for changes from PackageManager to update the contents of the Recents
		* list.
		*/
		public class RecentsPackageMonitor extends PackageMonitor {
		public interface PackageCallbacks {
		public void onComponentRemoved(Set<ComponentName> cns);
		}

		PackageCallbacks mCb;
		List<ActivityManager.RecentTaskInfo> mTasks;
		SystemServicesProxy mSsp;

		public RecentsPackageMonitor(Context context) {
		mSsp = new SystemServicesProxy(context);
		}

		/** Registers the broadcast receivers with the specified callbacks. */
		public void register(Context context, PackageCallbacks cb) {
		mCb = cb;
		register(context, Looper.getMainLooper(), false);
		}

		/** Unregisters the broadcast receivers. */
		@Override
		public void unregister() {
		super.unregister();
		mTasks.clear();
		}

		/** Sets the list of tasks to match against package broadcast changes. */
		void setTasks(List<ActivityManager.RecentTaskInfo> tasks) {
		mTasks = tasks;
		}

		@Override
		public void onPackageRemoved(String packageName, int uid) {
		if (mCb == null) return;

		// Identify all the tasks that should be removed as a result of the package being removed.
		// Using a set to ensure that we callback once per unique component.
		HashSet<ComponentName> componentsToRemove = new HashSet<ComponentName>();
		for (ActivityManager.RecentTaskInfo t : mTasks) {
		ComponentName cn = t.baseIntent.getComponent();
		if (cn.getPackageName().equals(packageName)) {
		componentsToRemove.add(cn);
		}
		}
		// Notify our callbacks that the components no longer exist
		mCb.onComponentRemoved(componentsToRemove);
		}

		@Override
		public boolean onPackageChanged(String packageName, int uid, String[] components) {
		onPackageModified(packageName);
		return true;
		}

		@Override
		public void onPackageModified(String packageName) {
		if (mCb == null) return;

		// Identify all the tasks that should be removed as a result of the package being removed.
		// Using a set to ensure that we callback once per unique component.
		HashSet<ComponentName> componentsKnownToExist = new HashSet<ComponentName>();
		HashSet<ComponentName> componentsToRemove = new HashSet<ComponentName>();
		for (ActivityManager.RecentTaskInfo t : mTasks) {
		ComponentName cn = t.baseIntent.getComponent();
		if (cn.getPackageName().equals(packageName)) {
		if (componentsKnownToExist.contains(cn)) {
		// If we know that the component still exists in the package, then skip
		continue;
		}
		if (mSsp.getActivityInfo(cn) != null) {
		componentsKnownToExist.add(cn);
		} else {
		componentsToRemove.add(cn);
		}
		}
		}
		// Notify our callbacks that the components no longer exist
		mCb.onComponentRemoved(componentsToRemove);
		}
		}