服务状态

SeviceStateUtils

public static boolean isServiceRunning(Context ctx,String serviceName){	
		ActivityManager am = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE);
		List<RunningServiceInfo> runningServices = am.getRunningServices(100);
		
		for (RunningServiceInfo runningServiceInfo : runningServices) {
			String className = runningServiceInfo.service.getClassName();
			
			if(serviceName.equals(className)){
				return true;
			}
		}
		return false;		
	}