/**
     * 判断某个服务是否正在运行的方法
     *
     * @param serviceName 是包名+服务的类名
     * @return true代表正在运行，false代表服务没有正在运行
     */
    public static boolean isServiceWork(Context context,String serviceName) {
    
            ActivityManager myAM = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
            if (myAM != null) {
                List<ActivityManager.RunningServiceInfo> serviceList = myAM.getRunningServices(Integer.MAX_VALUE);
                if (serviceList != null && serviceList.size() > 0) {
                    for (ActivityManager.RunningServiceInfo info:serviceList) {
                        String inServiceName = info.service.getClassName();
                        if (serviceName.equals(inServiceName)){
                            return true;
                        }
                    }
                }
            }
     
        return false;
    }

就是上图的方法有几率触发