任务栏一键删除 Recent APP

RecentApp

systemUI/src/com/android/systemui/recents/RecentsActivity.java

RecentsView.java就是显示的控件

/**Dismisses the focused task. */

publicvoiddismissFocusedTask(){

//Get the first stack view

intchildCount = getChildCount();

for(inti = 0; i < childCount; i++) {

Viewchild = getChildAt(i);

if(child != mSearchBar){

TaskStackViewstackView = (TaskStackView) child;

stackView.dismissFocusedTask();

break;

}

}

}

自己写的，结束所有任务。直接用TaskStack做，不要用它自带的dismissFocusedTask来做，会超时，如果在线程里做又不能操作ＵＩ。

这里循环要注意，不要用正常的循环，否则会数组越界。因为做了removeTask后，数组内容会减少，所有每次只删除头上的task。

publicvoiddismissAllTask() {

Log.i("t","begin");

intnumStacks=mStacks.size();

Log.i("t","TaskStacksize "+numStacks);

for(inti = 0; i < numStacks; i++) {

TaskStacktaskStack=mStacks.get(i);

intnumStack=taskStack.getTaskCount();

Log.i("t","Tasksize "+numStack);

while(numStack>0){

Log.i("t","while===========");

//Ifdo removeTask(), the TaskStack will remove the task right

//now,so we must remove first task every time.

Taskt=taskStack.getTasks().get(0);

taskStack.removeTask(t);

numStack=taskStack.getTaskCount();

Log.i("t","Tasksize "+numStack);

Log.i("t","==============");

}

TaskStackView.java

/**Dismisses the focused task. */

publicvoiddismissFocusedTask(){

//Return early if there is no focused task index

if(mFocusedTaskIndex< 0) return;

Taskt =mStack.getTasks().get(mFocusedTaskIndex);

TaskViewtv = getChildViewForTask(t);

tv.dismissTask();

}