MyApplication類(儲存每一個Activity,並實現關閉所有Activity的操作
public class MyApplication extends Application {
private List<Activity> activityList = new LinkedList<Activity>();
private static MyApplication instance;
private MyApplication()
{
}
//單例模式中獲取唯一的MyApplication實例
public static MyApplication getInstance()
{
if(null == instance)
{
instance = new MyApplication();
}
return instance;
}
//添加Activity到容器中
public void addActivity(Activity activity)
{
activityList.add(activity);
}
//遍歷所有Activity並finish
public void exit()
{
for(Activity activity:activityList)
{
activity.finish();
}
System.exit(0);
}
}
在每一個Activity中的onCreate方法裏添加該Activity到MyApplication對象實例容器中
MyApplication.getInstance().addActivity(this);
在需要結束所有Activity的時候調用exit方法