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<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
                NetworkInterface intf = en.nextElement();
for (Enumeration<InetAddress> 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!!!!