Added ActivityManager API and AM command to resize a task. (53a29a90) · Commits · e / os / android_frameworks_base

cmds/am/src/com/android/commands/am/Am.java

+58 −28

Original line number	Diff line number	Diff line
		@@ -138,6 +138,7 @@ public class Am extends BaseCommand {
		" am task lock <TASK_ID>\n" +
		" am task lock stop\n" +
		" am task resizeable <TASK_ID> [true\|false]\n" +
		" am task resize <TASK_ID> <LEFT,TOP,RIGHT,BOTTOM>\n" +
		" am get-config\n" +
		"\n" +
		"am start: start an Activity. Options are:\n" +
		@@ -249,11 +250,11 @@ public class Am extends BaseCommand {
		"am stack resize: change <STACK_ID> size and position to <LEFT,TOP,RIGHT,BOTTOM>" +
		".\n" +
		"\n" +
		"am stack split: split <STACK_ID> into 2 stacks <v>ertically or <h>orizontally" +
		" starting the new stack with [INTENT] if specified. If [INTENT] isn't" +
		" specified and the current stack has more than one task, then the top task" +
		" of the current task will be moved to the new stack. Command will also force" +
		" all current tasks in both stacks to be resizeable." +
		"am stack split: split <STACK_ID> into 2 stacks <v>ertically or <h>orizontally\n" +
		" starting the new stack with [INTENT] if specified. If [INTENT] isn't\n" +
		" specified and the current stack has more than one task, then the top task\n" +
		" of the current task will be moved to the new stack. Command will also force\n" +
		" all current tasks in both stacks to be resizeable.\n" +
		"\n" +
		"am stack list: list all of the activity stacks and their sizes.\n" +
		"\n" +
		@@ -265,6 +266,10 @@ public class Am extends BaseCommand {
		"\n" +
		"am task resizeable: change if <TASK_ID> is resizeable (true) or not (false).\n" +
		"\n" +
		"am task resize: makes sure <TASK_ID> is in a stack with the specified bounds.\n" +
		" Forces the task to be resizeable and creates a stack if no existing stack\n" +
		" has the specified bounds.\n" +
		"\n" +
		"am get-config: retrieve the configuration and any recent configurations\n" +
		" of the device\n" +
		"\n" +
		@@ -1742,33 +1747,14 @@ public class Am extends BaseCommand {
		private void runStackResize() throws Exception {
		String stackIdStr = nextArgRequired();
		int stackId = Integer.valueOf(stackIdStr);
		String leftStr = nextArgRequired();
		int left = Integer.valueOf(leftStr);
		String topStr = nextArgRequired();
		int top = Integer.valueOf(topStr);
		String rightStr = nextArgRequired();
		int right = Integer.valueOf(rightStr);
		String bottomStr = nextArgRequired();
		int bottom = Integer.valueOf(bottomStr);
		if (left < 0) {
		System.err.println("Error: bad left arg: " + leftStr);
		return;
		}
		if (top < 0) {
		System.err.println("Error: bad top arg: " + topStr);
		return;
		}
		if (right <= 0) {
		System.err.println("Error: bad right arg: " + rightStr);
		return;
		}
		if (bottom <= 0) {
		System.err.println("Error: bad bottom arg: " + bottomStr);
		final Rect bounds = getBounds();
		if (bounds == null) {
		System.err.println("Error: invalid input bounds");
		return;
		}

		try {
		mAm.resizeStack(stackId, new Rect(left, top, right, bottom));
		mAm.resizeStack(stackId, bounds);
		} catch (RemoteException e) {
		}
		}
		@@ -1857,6 +1843,8 @@ public class Am extends BaseCommand {
		runTaskLock();
		} else if (op.equals("resizeable")) {
		runTaskResizeable();
		} else if (op.equals("resize")) {
		runTaskResize();
		} else {
		showError("Error: unknown command '" + op + "'");
		return;
		@@ -1890,6 +1878,20 @@ public class Am extends BaseCommand {
		}
		}

		private void runTaskResize() throws Exception {
		final String taskIdStr = nextArgRequired();
		final int taskId = Integer.valueOf(taskIdStr);
		final Rect bounds = getBounds();
		if (bounds == null) {
		System.err.println("Error: invalid input bounds");
		return;
		}
		try {
		mAm.resizeTask(taskId, bounds);
		} catch (RemoteException e) {
		}
		}

		private List<Configuration> getRecentConfigurations(int days) {
		IUsageStatsManager usm = IUsageStatsManager.Stub.asInterface(ServiceManager.getService(
		Context.USAGE_STATS_SERVICE));
		@@ -1986,4 +1988,32 @@ public class Am extends BaseCommand {
		}
		return fd;
		}

		private Rect getBounds() {
		String leftStr = nextArgRequired();
		int left = Integer.valueOf(leftStr);
		String topStr = nextArgRequired();
		int top = Integer.valueOf(topStr);
		String rightStr = nextArgRequired();
		int right = Integer.valueOf(rightStr);
		String bottomStr = nextArgRequired();
		int bottom = Integer.valueOf(bottomStr);
		if (left < 0) {
		System.err.println("Error: bad left arg: " + leftStr);
		return null;
		}
		if (top < 0) {
		System.err.println("Error: bad top arg: " + topStr);
		return null;
		}
		if (right <= 0) {
		System.err.println("Error: bad right arg: " + rightStr);
		return null;
		}
		if (bottom <= 0) {
		System.err.println("Error: bad bottom arg: " + bottomStr);
		return null;
		}
		return new Rect(left, top, right, bottom);
		}
		}

core/java/android/app/ActivityManagerNative.java

+23 −0

Original line number	Diff line number	Diff line
		@@ -2313,6 +2313,15 @@ public abstract class ActivityManagerNative extends Binder implements IActivityM
		return true;
		}

		case RESIZE_TASK_TRANSACTION: {
		data.enforceInterface(IActivityManager.descriptor);
		int taskId = data.readInt();
		Rect r = Rect.CREATOR.createFromParcel(data);
		resizeTask(taskId, r);
		reply.writeNoException();
		return true;
		}

		case GET_TASK_DESCRIPTION_ICON_TRANSACTION: {
		data.enforceInterface(IActivityManager.descriptor);
		String filename = data.readString();
		@@ -5437,6 +5446,20 @@ class ActivityManagerProxy implements IActivityManager
		reply.recycle();
		}

		@Override
		public void resizeTask(int taskId, Rect r) throws RemoteException
		{
		Parcel data = Parcel.obtain();
		Parcel reply = Parcel.obtain();
		data.writeInterfaceToken(IActivityManager.descriptor);
		data.writeInt(taskId);
		r.writeToParcel(data, 0);
		mRemote.transact(RESIZE_TASK_TRANSACTION, data, reply, IBinder.FLAG_ONEWAY);
		reply.readException();
		data.recycle();
		reply.recycle();
		}

		@Override
		public Bitmap getTaskDescriptionIcon(String filename) throws RemoteException {
		Parcel data = Parcel.obtain();

core/java/android/app/IActivityManager.java

+2 −0

Original line number	Diff line number	Diff line
		@@ -464,6 +464,7 @@ public interface IActivityManager extends IInterface {
		public void setTaskDescription(IBinder token, ActivityManager.TaskDescription values)
		throws RemoteException;
		public void setTaskResizeable(int taskId, boolean resizeable) throws RemoteException;
		public void resizeTask(int taskId, Rect bounds) throws RemoteException;
		public Bitmap getTaskDescriptionIcon(String filename) throws RemoteException;

		public void startInPlaceAnimationOnFrontMostApplication(ActivityOptions opts)
		@@ -808,4 +809,5 @@ public interface IActivityManager extends IInterface {
		int GET_FOCUSED_STACK_ID_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+282;
		int SET_TASK_RESIZEABLE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+283;
		int REQUEST_ASSIST_CONTEXT_EXTRAS_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+284;
		int RESIZE_TASK_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+285;
		}

services/core/java/com/android/server/am/ActivityManagerService.java

+19 −0

Original line number	Diff line number	Diff line
		@@ -7908,6 +7908,25 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		}

		@Override
		public void resizeTask(int taskId, Rect bounds) {
		enforceCallingPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS,
		"resizeTask()");
		long ident = Binder.clearCallingIdentity();
		try {
		synchronized (this) {
		TaskRecord task = mStackSupervisor.anyTaskForIdLocked(taskId, true);
		if (task == null) {
		Slog.w(TAG, "resizeTask: taskId=" + taskId + " not found");
		return;
		}
		mStackSupervisor.resizeTaskLocked(task, bounds);
		}
		} finally {
		Binder.restoreCallingIdentity(ident);
		}
		}

		@Override
		public Bitmap getTaskDescriptionIcon(String filename) {
		if (!FileUtils.isValidExtFilename(filename)

services/core/java/com/android/server/am/ActivityStack.java

+15 −5

Original line number	Diff line number	Diff line
		@@ -152,25 +152,25 @@ final class ActivityStack {
		* The back history of all previous (and possibly still
		* running) activities. It contains #TaskRecord objects.
		*/
		private ArrayList<TaskRecord> mTaskHistory = new ArrayList<TaskRecord>();
		private ArrayList<TaskRecord> mTaskHistory = new ArrayList<>();

		/**
		* Used for validating app tokens with window manager.
		*/
		final ArrayList<TaskGroup> mValidateAppTokens = new ArrayList<TaskGroup>();
		final ArrayList<TaskGroup> mValidateAppTokens = new ArrayList<>();

		/**
		* List of running activities, sorted by recent usage.
		* The first entry in the list is the least recently used.
		* It contains HistoryRecord objects.
		*/
		final ArrayList<ActivityRecord> mLRUActivities = new ArrayList<ActivityRecord>();
		final ArrayList<ActivityRecord> mLRUActivities = new ArrayList<>();

		/**
		* Animations that for the current transition have requested not to
		* be considered for the transition animation.
		*/
		final ArrayList<ActivityRecord> mNoAnimActivities = new ArrayList<ActivityRecord>();
		final ArrayList<ActivityRecord> mNoAnimActivities = new ArrayList<>();

		/**
		* When we are in the process of pausing an activity, before starting the
		@@ -346,6 +346,10 @@ final class ActivityStack {
		return count;
		}

		int numTasks() {
		return mTaskHistory.size();
		}

		ActivityStack(ActivityStackSupervisor.ActivityContainer activityContainer,
		RecentTasks recentTasks) {
		mActivityContainer = activityContainer;
		@@ -4177,8 +4181,14 @@ final class ActivityStack {
		}

		void removeTask(TaskRecord task, String reason) {
		removeTask(task, reason, true);
		}

		void removeTask(TaskRecord task, String reason, boolean removeFromWindowManager) {
		mStackSupervisor.endLockTaskModeIfTaskEnding(task);
		if (removeFromWindowManager) {
		mWindowManager.removeTask(task.taskId);
		}
		final ActivityRecord r = mResumedActivity;
		if (r != null && r.task == task) {
		mResumedActivity = null;