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네트워크 유형이 2G, 3G 또는 4G인지 확인하는 방법
내 애플리케이션에 네트워크 유형 (2G 또는 3G 또는 4G)을 표시하는 표시기가 있지만 네트워크 유형을 가져온 후 어떤 속도 범주에 속해야하는지 어떻게 알 수 있습니까?
네트워크 유형을 감지하는 방법을 알고 있습니다.
private TelephonyManager telephonyManager;
telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
CurrentNetworkType = telephonyManager.getNetworkType();
가능한 반환 값이 주어지면 :
// public static final int NETWORK_TYPE_1xRTT
// Since: API Level 4
// Current network is 1xRTT
// Constant Value: 7 (0x00000007)
//
// public static final int NETWORK_TYPE_CDMA
// Since: API Level 4
// Current network is CDMA: Either IS95A or IS95B
// Constant Value: 4 (0x00000004)
//
// public static final int NETWORK_TYPE_EDGE
// Since: API Level 1
// Current network is EDGE
// Constant Value: 2 (0x00000002)
//
// public static final int NETWORK_TYPE_EHRPD
// Since: API Level 11
// Current network is eHRPD
// Constant Value: 14 (0x0000000e)
//
// public static final int NETWORK_TYPE_EVDO_0
// Since: API Level 4
// Current network is EVDO revision 0
// Constant Value: 5 (0x00000005)
//
// public static final int NETWORK_TYPE_EVDO_A
// Since: API Level 4
// Current network is EVDO revision A
// Constant Value: 6 (0x00000006)
//
// public static final int NETWORK_TYPE_EVDO_B
// Since: API Level 9
// Current network is EVDO revision B
// Constant Value: 12 (0x0000000c)
//
// public static final int NETWORK_TYPE_GPRS
// Since: API Level 1
// Current network is GPRS
// Constant Value: 1 (0x00000001)
//
// public static final int NETWORK_TYPE_HSDPA
// Since: API Level 5
// Current network is HSDPA
// Constant Value: 8 (0x00000008)
//
// public static final int NETWORK_TYPE_HSPA
// Since: API Level 5
// Current network is HSPA
// Constant Value: 10 (0x0000000a)
//
// public static final int NETWORK_TYPE_HSPAP
// Since: API Level 13
// Current network is HSPA+
// Constant Value: 15 (0x0000000f)
//
// public static final int NETWORK_TYPE_HSUPA
// Since: API Level 5
// Current network is HSUPA
// Constant Value: 9 (0x00000009)
//
// public static final int NETWORK_TYPE_IDEN
// Since: API Level 8
// Current network is iDen
// Constant Value: 11 (0x0000000b)
//
// public static final int NETWORK_TYPE_LTE
// Since: API Level 11
// Current network is LTE
// Constant Value: 13 (0x0000000d)
//
// public static final int NETWORK_TYPE_UMTS
// Since: API Level 1
// Current network is UMTS
// Constant Value: 3 (0x00000003)
//
// public static final int NETWORK_TYPE_UNKNOWN
// Since: API Level 1
// Network type is unknown
// Constant Value: 0 (0x00000000)
LTE를 4G라고 생각하지만,이 중 실제로 3G로 간주되는 것은 무엇입니까? 2G를 고려할만한 다른 것.
그렇다면 3G와 3G 사이의 경계는 어디입니까?
업데이트 : https://stackoverflow.com/a/8548926/949577 에서 또 다른 관련 답변을 찾았습니다 .ConnectivityManager ()를 사용하여 유형과 하위 유형을 얻은 다음 하위 유형을 빠르거나 그렇지 않은 것으로 분류합니다. ConnectivityManager ()를 사용하는 것이 TelephonyManager ()를 사용하는 것보다 더 나은 방법인지 모르겠습니다. 둘 다 네트워크 유형을 반환 할 수 있기 때문입니다.
또한 http://en.wikipedia.org/wiki/Comparison_of_wireless_data_standards 에서 무선 데이터 표준을 비교하는 링크를 찾았습니다 .
이 다음 메서드를 Utility 클래스에 직접 넣을 수 있습니다.
public String getNetworkClass(Context context) {
TelephonyManager mTelephonyManager = (TelephonyManager)
context.getSystemService(Context.TELEPHONY_SERVICE);
int networkType = mTelephonyManager.getNetworkType();
switch (networkType) {
case TelephonyManager.NETWORK_TYPE_GPRS:
case TelephonyManager.NETWORK_TYPE_EDGE:
case TelephonyManager.NETWORK_TYPE_CDMA:
case TelephonyManager.NETWORK_TYPE_1xRTT:
case TelephonyManager.NETWORK_TYPE_IDEN:
return "2G";
case TelephonyManager.NETWORK_TYPE_UMTS:
case TelephonyManager.NETWORK_TYPE_EVDO_0:
case TelephonyManager.NETWORK_TYPE_EVDO_A:
case TelephonyManager.NETWORK_TYPE_HSDPA:
case TelephonyManager.NETWORK_TYPE_HSUPA:
case TelephonyManager.NETWORK_TYPE_HSPA:
case TelephonyManager.NETWORK_TYPE_EVDO_B:
case TelephonyManager.NETWORK_TYPE_EHRPD:
case TelephonyManager.NETWORK_TYPE_HSPAP:
return "3G";
case TelephonyManager.NETWORK_TYPE_LTE:
return "4G";
case TelephonyManager.NETWORK_TYPE_NR:
return "5G";
default:
return "Unknown";
}
}
Android 소스 코드의 도움 덕분입니다. =]
Android 개발자 문서 및 Wikipedia 링크를 기반으로 여기에 댓글을 달고 네트워크 유형을 정의했습니다. 댓글의 링크를 확인하세요.
getNetworkType네트워크 유형을 가져 오는 데 사용할 수 있습니다 .
public class CommonUtils {
/**
* To get device consuming netowkr type is 2g,3g,4g
*
* @param context
* @return "2g","3g","4g" as a String based on the network type
*/
public static String getNetworkType(Context context) {
TelephonyManager mTelephonyManager = (TelephonyManager)
context.getSystemService(Context.TELEPHONY_SERVICE);
int networkType = mTelephonyManager.getNetworkType();
switch (networkType) {
case TelephonyManager.NETWORK_TYPE_GPRS:
case TelephonyManager.NETWORK_TYPE_EDGE:
case TelephonyManager.NETWORK_TYPE_CDMA:
case TelephonyManager.NETWORK_TYPE_1xRTT:
case TelephonyManager.NETWORK_TYPE_IDEN:
return "2g";
case TelephonyManager.NETWORK_TYPE_UMTS:
case TelephonyManager.NETWORK_TYPE_EVDO_0:
case TelephonyManager.NETWORK_TYPE_EVDO_A:
/**
From this link https://en.wikipedia.org/wiki/Evolution-Data_Optimized ..NETWORK_TYPE_EVDO_0 & NETWORK_TYPE_EVDO_A
EV-DO is an evolution of the CDMA2000 (IS-2000) standard that supports high data rates.
Where CDMA2000 https://en.wikipedia.org/wiki/CDMA2000 .CDMA2000 is a family of 3G[1] mobile technology standards for sending voice,
data, and signaling data between mobile phones and cell sites.
*/
case TelephonyManager.NETWORK_TYPE_HSDPA:
case TelephonyManager.NETWORK_TYPE_HSUPA:
case TelephonyManager.NETWORK_TYPE_HSPA:
case TelephonyManager.NETWORK_TYPE_EVDO_B:
case TelephonyManager.NETWORK_TYPE_EHRPD:
case TelephonyManager.NETWORK_TYPE_HSPAP:
//Log.d("Type", "3g");
//For 3g HSDPA , HSPAP(HSPA+) are main networktype which are under 3g Network
//But from other constants also it will 3g like HSPA,HSDPA etc which are in 3g case.
//Some cases are added after testing(real) in device with 3g enable data
//and speed also matters to decide 3g network type
//https://en.wikipedia.org/wiki/4G#Data_rate_comparison
return "3g";
case TelephonyManager.NETWORK_TYPE_LTE:
//No specification for the 4g but from wiki
//I found(LTE (Long-Term Evolution, commonly marketed as 4G LTE))
//https://en.wikipedia.org/wiki/LTE_(telecommunication)
return "4g";
default:
return "Notfound";
}
}
/**
* To check device has internet
*
* @param context
* @return boolean as per status
*/
public static boolean isNetworkConnected(Context context) {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
return netInfo != null && netInfo.isConnected();
}
}
getSubtype()자세한 내용 은 사용할 수 있습니다 .
int netType = info.getType();
int netSubtype = info.getSubtype();
if (netType == ConnectivityManager.TYPE_WIFI) {
return info.isConnected();
} else if (netType == ConnectivityManager.TYPE_MOBILE
&& netSubtype == TelephonyManager.NETWORK_TYPE_UMTS
&& !mTelephony.isNetworkRoaming()) {
return info.isConnected();
} else {
return false;
}
기술적으로 말하면 1xRTT는 3G 기술입니다 (많은 사람들이 데이터 속도만을 기준으로 2G로 간주하지만). 또한 스위치 문에 WiMax를 추가하여 4G를 반환하는 것이 좋습니다. 더 이상 자주 사용되지 않지만 Sprint의 WiMax 네트워크는 당분간 여전히 작동합니다.
I think really you just have to hardcode the equivalent value you want them to have. A quick googling of most of those technologies should give you some manner of an idea as to which is considered 3G or 4G (though technically none of them are real 4G). Since there doesn't seem to be a distinction between HSPA and HSPA+, you might want to run some sort of speed or latency check, and go with it that way.
Updated version for API 29 / Android Q with 5G support in Kotlin:
enum class Generation {
`2G`,
`3G`,
`4G`,
`5G`
}
fun getNetworkGeneration(context: Context): Generation? {
val telephonyManager = context.getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
return when (telephonyManager.networkType) {
TelephonyManager.NETWORK_TYPE_UNKNOWN -> null
TelephonyManager.NETWORK_TYPE_GPRS,
TelephonyManager.NETWORK_TYPE_EDGE,
TelephonyManager.NETWORK_TYPE_CDMA,
TelephonyManager.NETWORK_TYPE_1xRTT,
TelephonyManager.NETWORK_TYPE_IDEN,
TelephonyManager.NETWORK_TYPE_GSM -> Generation.`2G`
TelephonyManager.NETWORK_TYPE_UMTS,
TelephonyManager.NETWORK_TYPE_EVDO_0,
TelephonyManager.NETWORK_TYPE_EVDO_A,
TelephonyManager.NETWORK_TYPE_HSDPA,
TelephonyManager.NETWORK_TYPE_HSUPA,
TelephonyManager.NETWORK_TYPE_HSPA,
TelephonyManager.NETWORK_TYPE_EVDO_B,
TelephonyManager.NETWORK_TYPE_EHRPD,
TelephonyManager.NETWORK_TYPE_HSPAP,
TelephonyManager.NETWORK_TYPE_TD_SCDMA -> Generation.`3G`
TelephonyManager.NETWORK_TYPE_LTE,
TelephonyManager.NETWORK_TYPE_IWLAN -> Generation.`4G`
TelephonyManager.NETWORK_TYPE_NR -> Generation.`5G`
else -> null
}
}
Use it like so in your activity:
val generation = getNetworkGeneration(this)
when (generation) {
Generation.`2G` -> TODO()
Generation.`3G` -> TODO()
Generation.`4G` -> TODO()
Generation.`5G` -> TODO()
null -> TODO()
}
참고URL : https://stackoverflow.com/questions/9283765/how-to-determine-if-network-type-is-2g-3g-or-4g
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