android5.1 长按home键一键清理白名单 滑动添加白名单

方法一：弊端：滑动时名单消失没有真正删除；再次长按home键 依然显示在待清理task中

目录 frameworksI\baseI\packagesI\SystemUI\src\com\android\systemui\recents\views\RecentsView.java  onTaskViewDismissed()

1.  @Override
2.     public void onTaskViewDismissed(Task t) {
3.         // Remove any stored data from the loader.  We currently don't bother notifying the views
4.         // that the data has been unloaded because at the point we call onTaskViewDismissed(), the views
5.         // either don't need to be updated, or have already been removed.
6.         RecentsTaskLoader loader = RecentsTaskLoader.getInstance();
7.         loader.deleteTaskData(t, false);
8.         // Remove the old task from activity manager
9.         /*添加滑动不能删除白名单 com.android.mms settings 为白名单 wanchengguo   20180803 begin*/
10.         //loader.getSystemServicesProxy().removeTask(t.key.id);    
11.         Boolean isapp = t.toString().contains("com.android.mms")||t.toString().contains("com.android.settings");
12.         if(!isapp) {
13.         loader.getSystemServicesProxy().removeTask(t.key.id);    //删除task
14.         }
15.         /*添加滑动不能删除白名单 com.android.mms settings 为白名单 wanchengguo   end*/
16.         
17.     }

• 方法二：白名单目录滑动失效；不能滑动删除
• 目录 frameworksI\baseI\packagesI\SystemUI\src\com\android\systemui\recents\views\SwipeHelper.java  endSwipe()方法

1.     private void endSwipe(VelocityTracker velocityTracker) {
2.         velocityTracker.computeCurrentVelocity(1000 /* px/sec */);
3.         float velocity = getVelocity(velocityTracker);
4.         float perpendicularVelocity = getPerpendicularVelocity(velocityTracker);
5.         float escapeVelocity = SWIPE_ESCAPE_VELOCITY * mDensityScale;
6.         float translation = getTranslation(mCurrView);
7.         // Decide whether to dismiss the current view
8.         boolean childSwipedFarEnough = DISMISS_IF_SWIPED_FAR_ENOUGH &&
9.                 Math.abs(translation) > 0.6 * getSize(mCurrView);
10.         boolean childSwipedFastEnough = (Math.abs(velocity) > escapeVelocity) &&
11.                 (Math.abs(velocity) > Math.abs(perpendicularVelocity)) &&
12.                 (velocity > 0) == (translation > 0);
13.         boolean dismissChild = mCallback.canChildBeDismissed(mCurrView)
14.                 && isValidSwipeDirection(translation)
15.                 && (childSwipedFastEnough || childSwipedFarEnough);
16.         if (dismissChild) {
17.             // flingadingy
18.             /*当滑动删除时删除的task在白名单中时 则滑动无效wanchengguo 20180803 begin*/
19.             //dismissChild(mCurrView, childSwipedFastEnough ? velocity : 0f);
20.             
21.             TaskView tv = (TaskView) mCurrView ;
22.             if(tv.getTask().toString().contains("com.android.mms")||tv.getTask().toString().contains("com.android.settings")) {
23.                 mCallback.onDragCancelled(mCurrView);
24.                 snapChild(mCurrView, velocity);
25.             }else {
26.                 dismissChild(mCurrView, childSwipedFastEnough ? velocity : 0f);
27.             }
28.             /*当滑动删除时删除的task在白名单中时 则滑动无效wanchengguo  20180803 end*/
29.         } else {
30.             // snappity
31.             mCallback.onDragCancelled(mCurrView);
32.             snapChild(mCurrView, velocity);
33.         }
34.     }