20160127_Android程序完全退出的方法
Android程序完全退出的方法
综合比较各种应用程序退出的方法,总结下述最优策略。使应用程序完全退出总共分3步:
- finish所有Activity
- 关闭所有后台进程
- 应用程序退出
代码如下:
1 /** 2 * 退出应用程序 3 * @param context 4 */ 5 @SuppressWarnings("deprecation") 6 public void AppExit(Context context){ 7 try { 8 finishAllActivity(); 9 ActivityManager activityMgr = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); 10 activityMgr.restartPackage(context.getPackageName()); 11 System.exit(0); 12 } catch (Exception e) { 13 e.printStackTrace(); 14 } 15 }
1 private static Stack<Activity> activityStack; 2 /** 3 * 结束所有Activity 4 * @return 5 */ 6 public void finishAllActivity() { 7 for (int i = 0, size = activityStack.size(); i < size; i++) { 8 if(activityStack.get(i)!=null){ 9 activityStack.get(i).finish(); 10 } 11 activityStack.clear(); 12 } 13 }
注解:
- finish所有Activity:遍历activityStack,逐个finish;
- 关闭所有后台进程:
ActivityManager activityMgr = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
activityMgr.restartPackage(context.getPackageName());
(1) 需要添加关闭应用程序的权限:
<uses-permission android:name="android.permission.RESTART_PACKAGES" />
(2) API:public void restartPackage (String packageName)
This method was deprecated in API level 8.
This is now just a wrapper forkillBackgroundProcesses(String)
; the previous behavior here is no longer available to applications because it allows them to break other applications by removing their alarms, stopping their services, etc.public void killBackgroundProcesses (String packageName)
Have the system immediately kill all background processes associated with the given package. This is the same as the kernel killing those processes to reclaim memory; the system will take care of restarting these processes in the future as needed.
You must hold the permission
KILL_BACKGROUND_PROCESSES
to be able to call this method.Parameters
The name of the package whose processes are to be - 应用程序退出:System.exit(0)