(android volley) 공통화 하기

volley 기능을 추상클래스로 만들고 -> Request

그 추상클래스를 상속받아 파라미터와 추가URL을 설정하는 클래스를 만들고 ->TestRequest

그 클래스의 객체를 만들어 실행하는 ->TestActivity

구조를 만들고 싶어서 만들고있는데...

되긴되지만 아직 미완성이다... 더 공부해야겠다

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파라미터를 겟방식으로 url에 붙이는 것을 추가하는 것과

response 결과 데이터를 가공하는 것에대해 더 수정해야할것같다

비동기에대한 공부를 더해봐야겠다

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Request.java

import android.app.ProgressDialog;
import android.content.Context;
import android.util.Log;

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.JsonRequest;

import org.json.JSONObject;

import java.util.HashMap;


public abstract class Request {
    private HashMap<String, String> params = new HashMap<String, String>();
    private ProgressDialog loadingDialog;

    private Context context = null;
    private String baseUrl = "http://11.22.33.44/hahaha/";
    private String urlName;
    private String resultString="";

    public Request(Context context) {
        this.context = context;
    }

    public void request(final VolleyCallback callback) {
        RequestQueue queue = VolleyUtill.getInstance(context).getRequestQueue();
        loadingDialog = ProgressDialog.show(context, "불러오는 중입니다..","Please wait..", true, false);

        JsonObjectRequest jsObjRequest = new JsonObjectRequest(
                JsonRequest.Method.GET, baseUrl+urlName, (String)null,
                new Response.Listener<JSONObject>() {
                    @Override
                    public void onResponse(JSONObject response) {
                        Log.i("Response", response.toString());

                        resultString = response.toString();
                        callback.onSuccess(resultString);
                        loadingDialog.dismiss();
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        Log.i("Response_error", error.toString());
                        loadingDialog.dismiss();
                    }
                }
        );

        // Get the ImageLoader through your singleton class.
        //mImageLoader = VolleyUtill.getInstance(this).getImageLoader();

        VolleyUtill.getInstance(context).addToRequestQueue(jsObjRequest);
    }

    public interface VolleyCallback{
        void onSuccess(String result);
    }

    /*
    public Response.Listener<JSONObject> createMyReqSuccessListener() {
        return new Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                    Log.i("Response", response.toString());
                    //String stringFromJson = parseJSON(response);
                    result = response.toString();
                    //setResultString(response.toString());
                    loadingDialog.dismiss();
            }
        };
    }

    public Response.ErrorListener createMyReqErrorListener() {
        return new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Log.i("Response error","errorr!!!!!!!");
                //result = "fail";
                //setResultString(error.toString());
                loadingDialog.dismiss();
            }
        };
    }*/

    public void clearParams() {
        this.params = new HashMap<String, String>();
    }

    public void setParam(String key, String value) {
        this.params.put(key, value);
    }

    public void setUrlName(String urlName) {
        this.urlName = urlName;
    }

}

TestRequest.java

import android.content.Context;
import android.util.Log;

//import com.~~~~~~~~~~~~~.Request;

import org.json.JSONArray;
import org.json.JSONObject;

import java.util.HashMap;


public class TestRequest extends Request {
    private String result;

    public TestRequest (Context context) {
        super(context);
    }

    public void setParams(String userId) {
        super.clearParams();
        super.setParam("user_id", userId);
    }

    public void startRequest(final VolleyCallback callback ) {
        setUrlName("select_test.php");

        request(callback);
    }

    public HashMap<String, String> jsondata(String data){
        HashMap<String, String> resData = new HashMap<String, String>();

        try{
            JSONObject jsonobj = new JSONObject(data);

            JSONArray jsonary = jsonobj.getJSONArray("result");

            for(int i = 0; i < jsonary.length(); i++){
                JSONObject obj = jsonary.getJSONObject(i);
                resData.put("user_id", obj.getString("user_id"));
                resData.put("test2", obj.getString("test2"));
                resData.put("test3", obj.getString("test3"));
            }

        }catch (Exception e){
            Log.d("json error ===", e.getMessage());
        }

        return resData;
    }
}

TestActivity.java

import android.util.Log;
import android.view.View;
import android.widget.TextView;

import java.util.HashMap;

/**
 * Created by jo on 2016-03-19.
 */
public class BusActivity extends BaseActivity {

    TextView mTextView;
    private HashMap<String, String> busList = null;

    @Override
    protected void createActivity() {
        View view = this.setContainerView(R.layout.activity_bus);
        getSupportActionBar().setTitle("테스트");

        mTextView = (TextView) view.findViewById(R.id.text);

        onBusRequest();
    }

    private void onBusRequest(){
        BusRequest request = new BusRequest(this);
        request.setParams("23");

        request.startRequest(new Request.VolleyCallback() {
            @Override
            public void onSuccess(String result) {
                Log.i("hahahah", result);
            }
        });
    }

    @Override
    protected void destroyActivity() {

    }

    @Override
    protected void viewClick(View view) {
        if (view.getId() == R.id.btn_back) {
            this.finish();
        }
    }

}