判断Activity，Service是否正在运行

Activity是否正在运行也就是Activity是否可见：

public static boolean isActivityRunning(Context mContext,String activityClassName){  

        ActivityManager activityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);  

        List<RunningTaskInfo> info = activityManager.getRunningTasks(1);  

        if(info != null && info.size() > 0){  

            ComponentName component = info.get(0).topActivity;

            if(activityClassName.equals(component.getClassName())){  

                return true;  

                }  

            }  

        return false;  
    }

判断Service是否在运行？

public static boolean isServiceRunning(Context mContext,String className) {  

        boolean isRunning = false;  

        ActivityManager activityManager = (ActivityManager)  

        mContext.getSystemService(Context.ACTIVITY_SERVICE);   

        List<ActivityManager.RunningServiceInfo> serviceList = activityManager.getRunningServices(30);  

 

        if (!(serviceList.size()>0)) {  

            return false;  

        }  

 

        for (int i=0; i<serviceList.size(); i++) {  

            if (serviceList.get(i).service.getClassName().equals(className) == true) {  

                isRunning = true;  

                break;  

            }  

        }  

        return isRunning;  

}