// 重启应用
	public void restartApp() {
		Intent intent = new Intent();
		// 参数1:包名,参数2:程序入口的activity
		intent.setClassName(getPackageName(), "包名");
		PendingIntent restartIntent = PendingIntent.getActivity(
				getApplicationContext(), 0, intent,
				Intent.FLAG_ACTIVITY_NEW_TASK);
		AlarmManager mgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
		mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 1000,
				restartIntent); // 1秒钟后重启应用
		finishProgram(); // 自定义方法,关闭当前打开的所有avtivity
	}

 2:第二种方式:

 
Intent i = getBaseContext().getPackageManager().getLaunchIntentForPackage(getBaseContext().getPackageName());   i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
startActivity(i); 
 

  

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