Android [파파고번역앱] 라디오 버튼, Volley

 

매인액티비티

package com.leopard4.translateapp;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;

import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import com.leopard4.translateapp.adapter.TranslateAdapter;
import com.leopard4.translateapp.config.Config;
import com.leopard4.translateapp.model.History;

import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

public class MainActivity extends AppCompatActivity {

    RadioGroup radioGroup;
    RadioButton radioBtn1;
    RadioButton radioBtn2;
    RadioButton radioBtn3;
    RadioButton radioBtn4;

    Button button;
    TextView txtResult;
    EditText editText;
    final String URL = "https://openapi.naver.com/v1/papago/n2mt";

    ArrayList<History> historyList = new ArrayList<>();
    String text;
    String result;
    String target;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        getSupportActionBar().setTitle("번역기");


        radioGroup = findViewById(R.id.radioGroup);
        radioBtn1 = findViewById(R.id.radioBtn1);
        radioBtn2 = findViewById(R.id.radioBtn2);
        radioBtn3 = findViewById(R.id.radioBtn3);
        radioBtn4 = findViewById(R.id.radioBtn4);
        button = findViewById(R.id.button);
        txtResult = findViewById(R.id.txtResult);
        editText = findViewById(R.id.editText);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                // 1. 에디터 텍스트에서 유저가 작성한 글을 가져온다.
                text = editText.getText().toString().trim();

                if (text.isEmpty()) {
                    editText.setError("Please enter text");
                    return;
                }

                // 2. 어떤 언어로 번역할지를 라디오버튼 정보 가져온다.
                int selectedId = radioGroup.getCheckedRadioButtonId();

                if (selectedId == R.id.radioBtn1) {
                    target = "en";
                } else if (selectedId == R.id.radioBtn2) {
                    target = "zh-CN";
                } else if (selectedId == R.id.radioBtn3) {
                    target = "zh-TW";
                } else if (selectedId == R.id.radioBtn4) {
                    target = "th";
                } else {
                    editText.setError("Please select language");
                    return;
                }
                // 3. 파파고 API 호출
                String source = "ko";

                JSONObject body = new JSONObject();
                try {
                    body.put("source", source);
                    body.put("target", target);
                    body.put("text", text);
                } catch (JSONException e) {
                    throw new RuntimeException(e);
                }

                RequestQueue queue = Volley.newRequestQueue(MainActivity.this);
                JsonObjectRequest request = new JsonObjectRequest(
                        Request.Method.POST,
                        URL,
                        body,
                        new Response.Listener<JSONObject>() {
                            @Override
                            public void onResponse(JSONObject response) {
                                Log.i("PAPAGO_APP", response.toString());

                                // 4. 호출결과를 화면에 보여준다.
                                try {
                                    result = response.getJSONObject("message").getJSONObject("result").getString("translatedText");

                                    txtResult.setText(result);

                                    // 히스토리 객체를 생성한다
                                    History history = new History(text, result, target);
                                    // 어레이 리스트에 넣어준다.
                                    historyList.add(0, history);

                                } catch (JSONException e) {
                                    throw new RuntimeException(e);
                                }
                            }

                            },
                        new Response.ErrorListener() {
                            @Override
                            public void onErrorResponse(VolleyError error) {
                                Log.i("PAPAGO_APP", error.toString());

                            }
                        }
                        ){
                        @Override
                        public Map<String, String> getHeaders() throws AuthFailureError {
                            Map<String, String> headers = new HashMap<>();
                            headers.put("X-Naver-Client-Id", Config.NAVER_CLIENT_ID);
                            headers.put("X-Naver-Client-Secret", Config.NAVER_CLIENT_SECRET);
                            return headers;
                        }

                };
                queue.add(request);


            }
        });
    }
    // 액션바의 메뉴는, 전용 함수가 있다.
    // 이 함수를 오버라이딩 해야 한다.
    @Override
    public boolean onCreateOptionsMenu(@NonNull Menu menu) {
        // 액션바에 메뉴가 나오도록 설정한다.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    // 액션바의 메뉴를 탭했을때, 실행되는 함수가 있다.
    // 이 함수를 오버라이딩 해야 한다.
    @Override
    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
        // 메뉴의 아이디를 확인해서, 각각의 메뉴를 구분한다.
        int itemId = item.getItemId();

        if(itemId == R.id.menu_history){
            Intent intent = new Intent(this, HistoryActivity.class);
            intent.putExtra("historyList", historyList);
            startActivity(intent);
        }
        return MainActivity.super.onOptionsItemSelected(item);
    }
}

히스토리 액티비티

package com.leopard4.translateapp;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.os.Bundle;

import com.leopard4.translateapp.adapter.TranslateAdapter;
import com.leopard4.translateapp.model.History;

import java.util.ArrayList;

public class HistoryActivity extends AppCompatActivity {

    TranslateAdapter adapter;
    RecyclerView recyclerView;
    ArrayList<History> historyList = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_history);

        recyclerView = findViewById(R.id.recyclerView);
        recyclerView.setHasFixedSize(true);
        recyclerView.setLayoutManager(new LinearLayoutManager(HistoryActivity.this));

        historyList = (ArrayList<History>) getIntent().getSerializableExtra("historyList");

        adapter = new TranslateAdapter(HistoryActivity.this, historyList);
        recyclerView.setAdapter(adapter);

    }
}

히스토리 클래스

package com.leopard4.translateapp.model;

import java.io.Serializable;

public class History implements Serializable {
    public String text;
    public String result;
    public String target;

    public History() {
    }

    public History(String text, String result, String target) {
        this.text = text;
        this.result = result;

        if (target.equals("en")) {
            this.target = "영어";
        } else if (target.equals("ko")) {
            this.target = "한국어";
        } else if (target.equals("zh-CN")) {
            this.target = "중국어";
        } else if (target.equals("zh-TW")) {
            this.target = "중국어";
        } else if (target.equals("th")) {
            this.target = "태국어";
        }
    }
}

Config

package com.leopard4.translateapp.config;

public class Config {
    public static final String NAVER_CLIENT_ID = "개인키";
    public static final String NAVER_CLIENT_SECRET = "개인키";
}

adapter

package com.leopard4.translateapp.adapter;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.leopard4.translateapp.R;
import com.leopard4.translateapp.model.History;

import java.util.ArrayList;

public class TranslateAdapter extends RecyclerView.Adapter<TranslateAdapter.ViewHolder>{

    Context context;
    ArrayList<History> historyList;

    public TranslateAdapter(Context context, ArrayList<History> historyList) {
        this.context = context;
        this.historyList = historyList;
    }

    @NonNull
    @Override
    public TranslateAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.history_row, parent, false);
        return new TranslateAdapter.ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull TranslateAdapter.ViewHolder holder, int position) {
        History history = historyList.get(position);

        holder.txtText.setText(history.text);
        holder.txtResult.setText(history.result);
        holder.txtTarget.setText(history.target);

    }

    @Override
    public int getItemCount() {
        return historyList.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder{
            TextView txtText;
            TextView txtResult;

            TextView txtTarget;
            public ViewHolder(@NonNull View parent) {
                super(parent);
                txtText = parent.findViewById(R.id.txtText);
                txtResult = parent.findViewById(R.id.txtResult);
                txtTarget = parent.findViewById(R.id.txtTarget);
            }
    }
}