Kotlinの拡張関数でService起動中の判定をする関数を作る

val Context.activityManager: ActivityManager
    get() = this.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager


fun <T: Service> Class<T>.isRunning(context: Context) =
        context.activityManager.getRunningServices(Integer.MAX_VALUE)
                .any { this.name == it.service.className }

fun <T: Service> KClass<T>.isRunning(context: Context) = this.java.isRunning(context)


HogeService.class.isRunning(context) //=> true or false

こんな感じでいけるかな？