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Commit fb9d78af authored by Jorim Jaggi's avatar Jorim Jaggi
Browse files

Add a listener when task snapshots change 

Since we start recents before we take the snapshot, we need to add
a mechanism to inform recents about task snapshots changes.

We add a new method to TaskStackChangedListener,
onTaskSnapshotChanged, which gets called whenever a task snapshot
changes. Then, SystemUI registers such a listener and updates the
task thumbnail view for the specific task.

Test: Open app, press recents, make sure thumbnail is up-to-date
Bug: 31339431
Change-Id: I01e81b9cd11886da734da671c68d5732aa51009f
parent 10abe2fe

core/java/android/app/IActivityManager.aidl

+0 −1
Original line number Original line Diff line number Diff line
@@ -31,7 +31,6 @@ import android.app.IStopUserCallback; 
import android.app.ITaskStackListener;

import android.app.ITaskStackListener;

import android.app.IUiAutomationConnection;

import android.app.IUiAutomationConnection;

import android.app.IUidObserver;

import android.app.IUidObserver;



import android.app.IUserSwitchObserver;

import android.app.IUserSwitchObserver;

import android.app.Notification;

import android.app.Notification;

import android.app.PendingIntent;

import android.app.PendingIntent;

core/java/android/app/ITaskStackListener.aidl

+5 −0
Original line number Original line Diff line number Diff line
@@ -102,4 +102,9 @@ oneway interface ITaskStackListener { 
     * been locked.

     * been locked.

     */

     */

    void onTaskProfileLocked(int taskId, int userId);

    void onTaskProfileLocked(int taskId, int userId);



    /**

     * Called when a task snapshot got updated.

     */

    void onTaskSnapshotChanged(int taskId, in ActivityManager.TaskSnapshot snapshot);

}
 
}

core/java/android/app/TaskStackListener.java

+6 −0
Original line number Original line Diff line number Diff line
@@ -16,6 +16,7 @@ 




package android.app;

package android.app;





import android.app.ActivityManager.TaskSnapshot;

import android.content.ComponentName;

import android.content.ComponentName;

import android.os.RemoteException;

import android.os.RemoteException;
@@ -78,4 +79,9 @@ public abstract class TaskStackListener extends ITaskStackListener.Stub { 
    @Override

    @Override

    public void onTaskProfileLocked(int taskId, int userId) {

    public void onTaskProfileLocked(int taskId, int userId) {

    }

    }



    @Override

    public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot)

            throws RemoteException {

    }

}
 
}

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

+7 −0
Original line number Original line Diff line number Diff line
@@ -23,6 +23,7 @@ import static android.app.ActivityManager.StackId.isHomeOrRecentsStack; 
import static android.view.View.MeasureSpec;

import static android.view.View.MeasureSpec;





import android.app.ActivityManager;

import android.app.ActivityManager;

import android.app.ActivityManager.TaskSnapshot;

import android.app.ActivityOptions;

import android.app.ActivityOptions;

import android.content.ActivityNotFoundException;

import android.content.ActivityNotFoundException;

import android.content.Context;

import android.content.Context;
@@ -60,6 +61,7 @@ import com.android.systemui.recents.events.component.RecentsVisibilityChangedEve 
import com.android.systemui.recents.events.component.ScreenPinningRequestEvent;

import com.android.systemui.recents.events.component.ScreenPinningRequestEvent;

import com.android.systemui.recents.events.ui.DraggingInRecentsEndedEvent;

import com.android.systemui.recents.events.ui.DraggingInRecentsEndedEvent;

import com.android.systemui.recents.events.ui.DraggingInRecentsEvent;

import com.android.systemui.recents.events.ui.DraggingInRecentsEvent;

import com.android.systemui.recents.events.ui.TaskSnapshotChangedEvent;

import com.android.systemui.recents.misc.DozeTrigger;

import com.android.systemui.recents.misc.DozeTrigger;

import com.android.systemui.recents.misc.ForegroundThread;

import com.android.systemui.recents.misc.ForegroundThread;

import com.android.systemui.recents.misc.SystemServicesProxy;

import com.android.systemui.recents.misc.SystemServicesProxy;
@@ -131,6 +133,11 @@ public class RecentsImpl implements ActivityOptions.OnAnimationFinishedListener 
                loader.loadTasks(mContext, plan, launchOpts);

                loader.loadTasks(mContext, plan, launchOpts);

            }

            }

        }

        }



        @Override

        public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot) {

            EventBus.getDefault().send(new TaskSnapshotChangedEvent(taskId, snapshot));

        }

    }

    }





    protected static RecentsTaskLoadPlan sInstanceLoadPlan;

    protected static RecentsTaskLoadPlan sInstanceLoadPlan;

packages/SystemUI/src/com/android/systemui/recents/events/ui/TaskSnapshotChangedEvent.java

0 → 100644
+35 −0
Original line number Original line Diff line number Diff line 
/*

 * Copyright (C) 2017 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.events.ui;



import android.app.ActivityManager.TaskSnapshot;



import com.android.systemui.recents.events.EventBus;



/**

 * Sent when a task snapshot has changed.

 */

public class TaskSnapshotChangedEvent extends EventBus.Event {



    public final int taskId;

    public final TaskSnapshot taskSnapshot;



    public TaskSnapshotChangedEvent(int taskId, TaskSnapshot taskSnapshot) {

        this.taskId = taskId;

        this.taskSnapshot = taskSnapshot;

    }

}