[Android] TelephonyManager (단말기 정보)

1. TelephonyManager란?

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TelephonyManager는 단말의 통신 서비스 정보에 대한 액세스를 제공한다 

Android는 기기의 통신 상태, SIM 일련번호, 네트워크 정보, 전화번호 등과 같은 휴대전화 관련 정보를  

TelephonyManager 클래스를 사용하여 얻을 수 있다

일부 전화 통신 정보에 대한 액세스는 권한으로 보호되고 있으며 매니페스트 파일에 권한이 선언되어 있지 않으면

애플리케이션이 보호된 정보에 액세스 할 수 없으며 일부 정보는 기기나 네트워크의 상태에 따라 사용 불가능한 경우도 있다

 

https://developer.android.com/reference/android/telephony/TelephonyManager

TelephonyManager  |  Android Developers

2. AndroidManifest.xml

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    <uses-permission android:name="android.permission.modify_phone_state" />

TelephonyManager을 사용하기 위해서는 Manifest file에 위의 내용을 작성한다

3. Kotlin 파일

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class TelephonyInfo(private val context: Context) {

    private val telephonyManager: TelephonyManager = context.getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager

    fun getNetworkOperatorName(): String {
        return telephonyManager.networkOperatorName
    }

    fun getNetworkType(): String {
        val networkType = telephonyManager.networkType
        return when (networkType) {
            TelephonyManager.NETWORK_TYPE_UNKNOWN -> "Unknown"
            TelephonyManager.NETWORK_TYPE_GPRS -> "GPRS"
            TelephonyManager.NETWORK_TYPE_EDGE -> "EDGE"
            TelephonyManager.NETWORK_TYPE_UMTS -> "UMTS"
            TelephonyManager.NETWORK_TYPE_HSDPA -> "HSDPA"
            TelephonyManager.NETWORK_TYPE_HSUPA -> "HSUPA"
            TelephonyManager.NETWORK_TYPE_HSPA -> "HSPA"
            TelephonyManager.NETWORK_TYPE_LTE -> "LTE"
            else -> "Other"
        }
    }

    fun getPhoneNumber(): String {
        return telephonyManager.line1Number ?: "Unknown"
    }
}

fun USimCheck(context: Context) {
    val telephonyManager = context.getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
    Log.d("tag", "getCallState : " + telephonyManager.callState)
    Log.d("tag", "getDataActivity : " + telephonyManager.dataActivity)
    Log.d("tag", "getDataState : " + telephonyManager.dataState)
    Log.d("tag", "getDeviceId : " + telephonyManager.deviceId)
    Log.d("tag", "getDeviceSoftwareVersion : " + telephonyManager.deviceSoftwareVersion)
    Log.d("tag", "getLine1Number : " + telephonyManager.line1Number)
    Log.d("tag", "getNetworkCountryIso : " + telephonyManager.networkCountryIso)
    Log.d("tag", "getNetworkOperator : " + telephonyManager.networkOperator)
    Log.d("tag", "getNetworkOperatorName : " + telephonyManager.networkOperatorName)
    Log.d("tag", "getNetworkType : " + telephonyManager.networkType)
    Log.d("tag", "getPhoneType : " + telephonyManager.phoneType)
    Log.d("tag", "getSimCountryIso : " + telephonyManager.simCountryIso)
    Log.d("tag", "getSubscriberId : " + telephonyManager.subscriberId)
    Log.d("tag", "getVoiceMailAlphaTag : " + telephonyManager.voiceMailAlphaTag)
    Log.d("tag", "getVoiceMailNumber : " + telephonyManager.voiceMailNumber)
    Log.d("tag", "isNetworkRoaming : " + telephonyManager.isNetworkRoaming)
    Log.d("tag", "hasIccCard : " + telephonyManager.hasIccCard())
    Log.d("tag", "hashCode : " + telephonyManager.hashCode())
}

val telephonyInfo = TelephonyInfo(context)
val operatorName = telephonyInfo.getNetworkOperatorName()
val networkType = telephonyInfo.getNetworkType()
val phoneNumber = telephonyInfo.getPhoneNumber()

TelephonyInfo 클래스의 객체를 생성한 후에 해당 메서드를 호출하여 정보를 얻을 수 있다