public?String?packageName?=?"";?
public?String?topActivityName?=?"";?
}private?TopActivityInfo?getTopActivityInfo()?{?
ActivityManager?manager?=?((ActivityManager)GlobalConfig.getContext().getSystemService(Context.ACTIVITY_SERVICE));?
TopActivityInfo?info?=?new?TopActivityInfo();?
if?(Build.VERSION.SDK_INT?>=?21)?{?
List<ActivityManager.RunningAppProcessInfo>?pis?=?manager.getRunningAppProcesses();?
ActivityManager.RunningAppProcessInfo?topAppProcess?=?pis.get(0);?
if?(topAppProcess?!=?null?&&?topAppProcess.importance?==?ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND)?{?
info.packageName?=?topAppProcess.processName;?
info.topActivityName?=?"";?
}?
}?else?{?
//getRunningTasks()?is?deprecated?since?API?Level?21?(Android?5.0)?
List?localList?=?manager.getRunningTasks(1);?
ActivityManager.RunningTaskInfo?localRunningTaskInfo?=?(ActivityManager.RunningTaskInfo)localList.get(0);?
info.packageName?=?localRunningTaskInfo.topActivity.getPackageName();?
info.topActivityName?=?localRunningTaskInfo.topActivity.getClassName();?
}?
return?info;?
}