oatpano

public void onResponse(User user, Retrofit retrofit) {
    //200
    String data = "Github Name :" + user.getName() +
        "\nBlog :"+user.getฺBlog() +
        "\nCompany Name :" + user.getCompany();
    tvResult.setText(data);
    //แสดง layout result
    layoutForm.setVisibility(View.GONE);
    layoutResult.setVisibility(View.VISIBLE);
    layoutProgress.setVisibility(View.GONE);

oatpano

Call call = git.getUser(username);

oatpano

call.enqueue(new Callback<User>() {
    @Override
    public void onResponse(Response<User> response, Retrofit retrofit) {

    }

    @Override
    public void onFailure(Throwable t) {
    }
    

oatpano

@Override
public void onResponse(Response<User> response, Retrofit retrofit) {
    User user = response.body();

    if (user == null) {
        //404 or the response cannot be converted to User.
        ResponseBody responseBody = response.errorBody();
        if (responseBody != null) {
            listener.onBodyError(responseBody);
        } else {

oatpano

Retrofit retrofit = new Retrofit.Builder()
                .baseUrl("https://api.github.com")
                .addConverterFactory(GsonConverterFactory.create())
                .build();

oatpano

public class NetworkConnectionManager {

    public NetworkConnectionManager() {

    }

    public void callServer(final OnNetworkCallbackListener listener,String username){

        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl("https://api.github.com")

oatpano

public interface OnNetworkCallbackListener{
    public void onResponse(User user, Retrofit retrofit);
    public void onBodyError(ResponseBody responseBodyError);
    public void onBodyErrorIsNull();
    public void onFailure(Throwable t);
}

oatpano

<uses-permission android:name="android.permission.INTERNET" />

oatpano

public class User {

    @Expose
    String name;
    @Expose
    String blog;
    @Expose
    String company;

    public String getName() {

oatpano

public class MainActivity extends AppCompatActivity {
    static {
        AppCompatDelegate.setCompatVectorFromResourcesEnabled(true);
    }

    ...
}