Expose new binder call createStackOnDisplay() (4900bf9d) · Commits · e / os / android_frameworks_base

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

+4 −5

Original line number	Diff line number	Diff line
		@@ -1694,11 +1694,10 @@ public class Am extends BaseCommand {
		Intent intent = makeIntent(UserHandle.USER_CURRENT);

		try {
		IBinder homeActivityToken = mAm.getHomeActivityToken();
		IActivityContainer container =
		mAm.createVirtualActivityContainer(homeActivityToken, null);
		container.attachToDisplay(displayId);
		IActivityContainer container = mAm.createStackOnDisplay(displayId);
		if (container != null) {
		container.startActivity(intent);
		}
		} catch (RemoteException e) {
		}
		}

core/java/android/app/ActivityManagerNative.java

+33 −0

Original line number	Diff line number	Diff line
		@@ -2202,6 +2202,20 @@ public abstract class ActivityManagerNative extends Binder implements IActivityM
		return true;
		}

		case CREATE_STACK_ON_DISPLAY: {
		data.enforceInterface(IActivityManager.descriptor);
		int displayId = data.readInt();
		IActivityContainer activityContainer = createStackOnDisplay(displayId);
		reply.writeNoException();
		if (activityContainer != null) {
		reply.writeInt(1);
		reply.writeStrongBinder(activityContainer.asBinder());
		} else {
		reply.writeInt(0);
		}
		return true;
		}

		case GET_ACTIVITY_CONTAINER_TRANSACTION: {
		data.enforceInterface(IActivityManager.descriptor);
		IBinder activityToken = data.readStrongBinder();
		@@ -5231,6 +5245,25 @@ class ActivityManagerProxy implements IActivityManager
		reply.recycle();
		}

		public IActivityContainer createStackOnDisplay(int displayId) throws RemoteException {
		Parcel data = Parcel.obtain();
		Parcel reply = Parcel.obtain();
		data.writeInterfaceToken(IActivityManager.descriptor);
		data.writeInt(displayId);
		mRemote.transact(CREATE_STACK_ON_DISPLAY, data, reply, 0);
		reply.readException();
		final int result = reply.readInt();
		final IActivityContainer res;
		if (result == 1) {
		res = IActivityContainer.Stub.asInterface(reply.readStrongBinder());
		} else {
		res = null;
		}
		data.recycle();
		reply.recycle();
		return res;
		}

		public IActivityContainer getEnclosingActivityContainer(IBinder activityToken)
		throws RemoteException {
		Parcel data = Parcel.obtain();

core/java/android/app/IActivityManager.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -436,6 +436,8 @@ public interface IActivityManager extends IInterface {
		public IActivityContainer createVirtualActivityContainer(IBinder parentActivityToken,
		IActivityContainerCallback callback) throws RemoteException;

		public IActivityContainer createStackOnDisplay(int displayId) throws RemoteException;

		public void deleteActivityContainer(IActivityContainer container) throws RemoteException;

		public IActivityContainer getEnclosingActivityContainer(IBinder activityToken)
		@@ -797,4 +799,5 @@ public interface IActivityManager extends IInterface {

		// Start of M transactions
		int NOTIFY_CLEARTEXT_NETWORK_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+280;
		int CREATE_STACK_ON_DISPLAY = IBinder.FIRST_CALL_TRANSACTION+281;
		}

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

+14 −0

Original line number	Diff line number	Diff line
		@@ -8113,6 +8113,20 @@ public final class ActivityManagerService extends ActivityManagerNative
		}
		}

		@Override
		public IActivityContainer createStackOnDisplay(int displayId) throws RemoteException {
		enforceCallingPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS,
		"createStackOnDisplay()");
		synchronized (this) {
		final int stackId = mStackSupervisor.getNextStackId();
		final ActivityStack stack = mStackSupervisor.createStackOnDisplay(stackId, displayId);
		if (stack == null) {
		return null;
		}
		return stack.mActivityContainer;
		}
		}

		@Override
		public IActivityContainer getEnclosingActivityContainer(IBinder activityToken)
		throws RemoteException {

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

+6 −7

Original line number	Diff line number	Diff line
		@@ -1569,10 +1569,9 @@ public final class ActivityStackSupervisor implements DisplayListener {
		}

		// Need to create an app stack for this user.
		int stackId = createStackOnDisplay(getNextStackId(), Display.DEFAULT_DISPLAY);
		mFocusedStack = createStackOnDisplay(getNextStackId(), Display.DEFAULT_DISPLAY);
		if (DEBUG_FOCUS \|\| DEBUG_STACK) Slog.d(TAG, "adjustStackFocus: New stack r=" + r +
		" stackId=" + stackId);
		mFocusedStack = getStack(stackId);
		" stackId=" + mFocusedStack.mStackId);
		return mFocusedStack;
		}
		return mHomeStack;
		@@ -2592,16 +2591,16 @@ public final class ActivityStackSupervisor implements DisplayListener {
		}
		}

		private int createStackOnDisplay(int stackId, int displayId) {
		ActivityStack createStackOnDisplay(int stackId, int displayId) {
		ActivityDisplay activityDisplay = mActivityDisplays.get(displayId);
		if (activityDisplay == null) {
		return -1;
		return null;
		}

		ActivityContainer activityContainer = new ActivityContainer(stackId);
		mActivityContainers.put(stackId, activityContainer);
		activityContainer.attachToDisplayLocked(activityDisplay);
		return stackId;
		return activityContainer.mStack;
		}

		int getNextStackId() {
		@@ -2638,7 +2637,7 @@ public final class ActivityStackSupervisor implements DisplayListener {
		// We couldn't find a stack to restore the task to. Possible if are restoring recents
		// before an application stack is created...Go ahead and create one on the default
		// display.
		stack = getStack(createStackOnDisplay(getNextStackId(), Display.DEFAULT_DISPLAY));
		stack = createStackOnDisplay(getNextStackId(), Display.DEFAULT_DISPLAY);
		// Restore home stack to top.
		moveHomeStack(true);
		if (DEBUG_RECENTS)