Vfrdtyky

I started building an android app (btw I'm totally new to android and not that experienced with Java). I want it to do a GET-Request to a server, get back a json and then do something with that json.

The code below works fine but it's very long and I can imagine that after implementing a few buttons in this activity it's gonna be a real mess

public class secondActivity extends Activity implements OnClickListener {

@Override

public void onCreate(final Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    this.setContentView(R.layout.login_formular);

    View v = findViewById(R.id.button2);

    v.setOnClickListener(this);



}



@Override

public void onClick(View v) {

    if(v.getId() == R.id.button2) {

        OkHttpClient client = new OkHttpClient();

        String url="https://example.com/json";

        Request request= new Request.Builder()

                .url(url)

                .build();

        client.newCall(request).enqueue(new Callback() {

            @Override

            public void onFailure(Call call, IOException e) {

                e.printStackTrace();

            }



            @Override

            public void onResponse(Call call, Response response) throws IOException {

                if(response.isSuccessful()){

                    final String res= response.body().string();

                    final Gson gson= new Gson();

                    final Employee employee=gson.fromJson(res, Employee.class);

                    secondActivity.this.runOnUiThread(new Runnable() {

                        @Override

                        public void run() {

                            TextView txt= findViewById(R.id.txt3);

                            txt.setText("employee: " + employee.name);

                        }

                    });

                }

            }

        });

    }

}

}

My idea was to outsource the code for the http and inside the onclick event calling this function to a new class but it doesn't work.

The Request is working fine but my employee only exists inside onResponse and I have no ide how to return it.

getEmployeeName.java

public class getEmployeeName {

public static String reqName(){

    OkHttpClient client = new OkHttpClient();

    String url="https://example.com/json";

    Request request= new Request.Builder()

            .url(url)

            .build();

    client.newCall(request).enqueue(new Callback() {

        @Override

        public void onFailure(Call call, IOException e) {

            e.printStackTrace();

        }

        @Override

        public void onResponse(Call call, Response response) throws IOException {



            if(response.isSuccessful()){

                String res= response.body().string();

                Gson gson= new Gson();

                Employee employee=gson.fromJson(res, Employee.class);

            }

        }

    });

    return employee;

}

}

secondActivity.java

public void onClick(View v) {

    if(v.getId() == R.id.button2) {

        String name = getEmployeeName.reqName();

        secondActivity.this.runOnUiThread(new Runnable() {

            @Override

            public void run() {

                TextView txt= findViewById(R.id.txt3);

                txt.setText("employee: " + name);

            }

        });

    }

}

What I am doing wrong?
Thanks
Amit