android完全退出程序的几种方式

android.os.Process.killProcess(android.os.Process.myPid());//首先获取当前进程的id，然后杀死该进程System.exit(0);//终止当前正在运行的Java虚拟机，让程序终止 //强制关闭与该包有关联的一切执行  ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);  manager.restartPackage(getPackageName());  //使用这种方式关闭应用程序需要加上权限  <uses-permission android:name="android.permission.RESTART_PACKAGES" /> ActivityManager activityManager = (ActivityManager)getSystemService(ACTIVITY_SERVICE);List<RunningAppProcessInfo> appProcessInfos = activityManager.getRunningAppProcesses();  String currentProcess=getApplicationInfo().processName;  for (RunningAppProcessInfo appProcessInfo : appProcessInfos) {      String processName=appProcessInfo.processName;      if (processName.equals("com.lynhsp")) {          //System.out.println("ApplicationInfo-->"+processName);           android.os.Process.killProcess(appProcessInfo.pid);          //System.out.println("Killed -->PID:"+appProcessInfo.pid+"--ProcessName:"+processName);       } }

//MyApplication类用来存储每一个activity，并实现关闭所有activity的操作public class MyApplication extends Application { //定义容activity容器 private List activityList = new LinkedList(); private static MyApplication instance;  private MyApplication(){} //单例设计模式中取得唯一的MyApplication实例 public static MyApplication getInstance(){  if(instance == null)   instance = new MyApplication();  return instance; } //添加activity到容器中 public void addActivity(Activity activity){  activityList.add(activity); } //遍历所有的activity并finish public void exitApp(){  for(Activity activity : activityList){   if(activity != null)    activity.finish();  }  System.exit(0); } //清空缓存 @Override    public void onLowMemory() {        super.onLowMemory();            System.gc();    }  }//其次要在各个activity的onCreate方法中加入如下代码：MyApplication.getInstance().addActivity(this);//将该activity加入到activity容器中。//最后，在实现退出应用程序的地方加入如下代码：MyApplication.getInstance().exitApp();