如何确定Android中Wifi,3G,4G(LTE)和VPN的网络接口？

在android中,我发现了网络接口名称&通过以下代码与该接口关联的IP地址.

// Iterate over all network interfaces.
for (Enumeration<NetworkInterface> en = 
    NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();)
    {
        NetworkInterface intf = en.nextElement();
        // Iterate over all IP addresses in each network interface.
        for (Enumeration<InetAddress> enumIPAddr = 
            intf.getInetAddresses(); enumIPAddr.hasMoreElements();)
        {
            InetAddress iNetAddress = enumIPAddr.nextElement();
            // Loop back address (127.0.0.1) doesn't count as an in-use IP address.
            if (!iNetAddress.isLoopbackAddress())
            {
                sLocalIP = iNetAddress.getHostAddress().toString();
                sInterfaceName = intf.getName();
            }
        }
    }

由于网络接口名称可能因制造商而异,并且在同一制造商的不同设备中也可能有所不同.

如何确定哪个网络接口适用于wifi,3G,4G(LTE)& Android中的VPN？

解决方法:

使用这种方法,您可以确定它是Wifi还是移动连接：

private static boolean isConnectedWifi(Context context) {
        NetworkInfo info = ConnectionUtil.getNetworkInfo(context);
        return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_WIFI);
    }

private static boolean isConnectedMobile(Context context) {
        NetworkInfo info = ConnectionUtil.getNetworkInfo(context);
        return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_MOBILE);
}

如果是移动连接,则可以通过info.getSubType()了解更多信息.使用这样的方法：

 private static String getConnectionType(int type, int subType) {
        if (type == ConnectivityManager.TYPE_WIFI) {
            return "TYPE_WIFI";
        } else if (type == ConnectivityManager.TYPE_MOBILE) {
            switch (subType) {
                case TelephonyManager.NETWORK_TYPE_UNKNOWN:
                    return "TYPE_UNKNOWN";
                case TelephonyManager.NETWORK_TYPE_1xRTT:
                    return "TYPE_1XRTT"; // ~ 50-100 kbps
                case TelephonyManager.NETWORK_TYPE_CDMA:
                    return "TYPE_CDMA"; // ~ 14-64 kbps
                case TelephonyManager.NETWORK_TYPE_EDGE:
                    return "TYPE_EDGE"; // ~ 50-100 kbps
                case TelephonyManager.NETWORK_TYPE_EVDO_0:
                    return "TYPE_EVDO_0"; // ~ 400-1000 kbps
                case TelephonyManager.NETWORK_TYPE_EVDO_A:
                    return "TYPE_EVDO_A"; // ~ 600-1400 kbps
                case TelephonyManager.NETWORK_TYPE_GPRS:
                    return "TYPE_GPRS"; // ~ 100 kbps
                case TelephonyManager.NETWORK_TYPE_HSDPA:
                    return "TYPE_HSDPA"; // ~ 2-14 Mbps
                case TelephonyManager.NETWORK_TYPE_HSPA:
                    return "TYPE_HSPA"; // ~ 700-1700 kbps
                case TelephonyManager.NETWORK_TYPE_HSUPA:
                    return "TYPE_HSUPA"; // ~ 1-23 Mbps
                case TelephonyManager.NETWORK_TYPE_UMTS:
                    return "TYPE_UMTS"; // ~ 400-7000 kbps
                case TelephonyManager.NETWORK_TYPE_IDEN: // API level 8
                    return "TYPE_IDEN"; // ~25 kbps


                // Unknown
                default:
                    return "TYPE_UNKNOWN";
            }
        } else {
            return "TYPE UNKNOWN";
        }
    }

希望它能对您有所帮助:)

标签：android-networking,network-interface,android
来源： https://codeday.me/bug/20191029/1959455.html