ActivityManager

ActivityManager activityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); List<RunningTaskInfo> tasksInfo =activityManager.getRunningTasks(100);  for(RunningTaskInfo info:tasksInfo){ //前台任务，info.topActivity.getPackageName()获取任务中应用名称，mContext.getPackageName()获取应用名 if(info.topActivity.getPackageName().equals(mContext.getPackageName()) || //后台任务 info.baseActivity.getPackageName().equals(mContext.getPackageName())){ Log.d("tab", info.topActivity.getPackageName()); Log.d("tab",mContext.getPackageName()); Log.d("tab",info.baseActivity.getPackageName()); tag = tag+1; break; }  }