获取手机wifi或4g网络的IP地址

main代码

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        boolean b = NetWorkUtil.isNetWorkAvailable(this);
        String ip = getPhoneIp();

//吐司提示
        if (b){
            Toast.makeText(getApplicationContext(), "当前有可用网络！IP为"+ip,
                    Toast.LENGTH_LONG).show();
        }else {
            Toast.makeText(getApplicationContext(), "当前没有可用网络！",
                    Toast.LENGTH_LONG).show();
        }

    }

//获取IP的方法
    private String getPhoneIp() {
        try {
            for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
                NetworkInterface intf = en.nextElement();
                for (Enumeration enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                    InetAddress inetAddress = enumIpAddr.nextElement();
                    if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address) {
                        //if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet6Address) {
                        return inetAddress.getHostAddress().toString();
                    }
                }
            }
        } catch (Exception e) {
        }
        return null;
    }
}

//判断网络连接的工具类

public class NetWorkUtil {
    //判断网络是否连接
        public static boolean isNetWorkAvailable(Context context) {
            //网络连接管理器
            ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
            //网络信息
            NetworkInfo info = connectivityManager.getActiveNetworkInfo();
            if (info != null) {
                return true;
            }

            return false;
        }
}

希望大家多多支持,评论!!!!