如何获取当前网络类型?我找到了解决方案:
val info = connectivityManager.activeNetworkInfo
if (info == null || !info.isConnected()) return "-" // not connected
if (info.getType() == ConnectivityManager.TYPE_WIFI) return "WIFI"
if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
val networkType: Int = info.getSubtype()
return when (networkType) {
TelephonyManager.NETWORK_TYPE_GPRS,
TelephonyManager.NETWORK_TYPE_EDGE,
TelephonyManager.NETWORK_TYPE_CDMA,
TelephonyManager.NETWORK_TYPE_1xRTT,
TelephonyManager.NETWORK_TYPE_IDEN,
TelephonyManager.NETWORK_TYPE_GSM -> "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 -> "3G"
TelephonyManager.NETWORK_TYPE_LTE,
TelephonyManager.NETWORK_TYPE_IWLAN, 19 -> "4G"
TelephonyManager.NETWORK_TYPE_NR -> "5G"
else -> "?"
}
}
return "?"
But it all marked as deprecated. Screenshot:
请帮忙!
NetworkInfo https://developer.android.com/reference/android/net/NetworkInfo类在 API 29 中已弃用。因此您需要将已弃用的方法替换为其注释中提到的方法。
您可以将此方法用于较新的 API 级别:
fun getNetwork(): String {
val connectivityManager =
context.getSystemService(CONNECTIVITY_SERVICE) as ConnectivityManager
val nw = connectivityManager.activeNetwork ?: return "-"
val actNw = connectivityManager.getNetworkCapabilities(nw) ?: return "-"
when {
actNw.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) -> return "WIFI"
actNw.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET) -> return "ETHERNET"
actNw.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) -> {
val tm = context.getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
when (tm.dataNetworkType) {
TelephonyManager.NETWORK_TYPE_GPRS,
TelephonyManager.NETWORK_TYPE_EDGE,
TelephonyManager.NETWORK_TYPE_CDMA,
TelephonyManager.NETWORK_TYPE_1xRTT,
TelephonyManager.NETWORK_TYPE_IDEN,
TelephonyManager.NETWORK_TYPE_GSM -> return "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 -> return "3G"
TelephonyManager.NETWORK_TYPE_LTE,
TelephonyManager.NETWORK_TYPE_IWLAN, 19 -> return "4G"
TelephonyManager.NETWORK_TYPE_NR -> return "5G"
else -> return "?"
}
}
else -> return "?"
}
}
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