如何在Android中以编程方式找到当前正在运行的应用程序？

ActivityManager activity_manager = (ActivityManager) context     .getSystemService(Activity.ACTIVITY_SERVICE);

ActivityManager

getRunningTasks(int)

ActivityManager

final ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);final List<RunningTaskInfo> recentTasks = activityManager.getRunningTasks(Integer.MAX_VALUE);for (int i = 0; i < recentTasks.size(); i++) {    Log.d("Executed app", "Application executed : " +recentTasks.get(i).baseActivity.toShortString()+ "tt ID: "+recentTasks.get(i).id+"");         }