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public class AppController extends Application {
    public static final String TAG = AppController.class.getSimpleName();
 
    private RequestQueue mRequestQueue;
 
    private static AppController mInstance;
 
    @Override
    public void onCreate() {
        super.onCreate();
        mInstance = this;
    }
 
    public static synchronized AppController getInstance() {
        return mInstance;
    }
 
    public RequestQueue getRequestQueue() {
        if (mRequestQueue == null) {
            mRequestQueue = Volley.newRequestQueue(getApplicationContext());
        }
 
        return mRequestQueue;
    }
 
    public  void addToRequestQueue(Request req, String tag) {
        req.setTag(TextUtils.isEmpty(tag) ? TAG : tag);
        getRequestQueue().add(req);
    }
 
    public  void addToRequestQueue(Request req) {
        req.setTag(TAG);
        getRequestQueue().add(req);
    }
 
    public void cancelPendingRequests(Object tag) {
        if (mRequestQueue != null) {
            mRequestQueue.cancelAll(tag);
        }
    }
}

public class AppController extends Application { public static final String TAG = AppController.class.getSimpleName(); private RequestQueue mRequestQueue; private static AppController mInstance; @Override public void onCreate() { super.onCreate(); mInstance = this; } public static synchronized AppController getInstance() { return mInstance; } public RequestQueue getRequestQueue() { if (mRequestQueue == null) { mRequestQueue = Volley.newRequestQueue(getApplicationContext()); } return mRequestQueue; } public void addToRequestQueue(Request req, String tag) { req.setTag(TextUtils.isEmpty(tag) ? TAG : tag); getRequestQueue().add(req); } public void addToRequestQueue(Request req) { req.setTag(TAG); getRequestQueue().add(req); } public void cancelPendingRequests(Object tag) { if (mRequestQueue != null) { mRequestQueue.cancelAll(tag); } } }

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private  void JsonOrnegiFonksiyonu(){
 
        final StringRequest strReq = new StringRequest(Request.Method.GET,
                "http://erkanyesersin.com/ornekJson.php", new Response.Listener<String>() {
 
            @Override
            public void onResponse(String response) {
                try {
                    jsonResponse = "";
                    JSONObject jObj=new JSONObject(response);
 
                    boolean error = jObj.getBoolean("error");
                    if (!error) {
 
                        JSONArray questionsArray = jObj.getJSONArray("sabitler");
                        for (int i = 0; i < questionsArray.length(); i++) {
                            JSONObject c = questionsArray.getJSONObject(i);
 
                            String yoneticiAdi = c.getString("yoneticiAdi");
                            String yoneticiMail = c.getString("yoneticiMail");
                            String yoneticiIban = c.getString("yoneticiIban");
 
                            jsonResponse += "Name: " + yoneticiAdi + "\n\n";
                            jsonResponse += "Email: " + yoneticiMail + "\n\n";
                            jsonResponse += "Home: " + yoneticiIban + "\n\n";
                        } 
                        txtResponse.setText(jsonResponse); 
                    } 
 
                } catch (JSONException e) {
                    Log.i("BekleyenSiparis","Excep "+e.getMessage());
                    e.printStackTrace();
                }
 
            }
 
        }, new Response.ErrorListener() {
 
            @Override
            public void onErrorResponse(VolleyError error) {
                VolleyLog.d(TAG, "Error: " + error.getMessage());
                Toast.makeText(getApplicationContext(),
                        error.getMessage(), Toast.LENGTH_SHORT).show();
 
            }
        });
 
        AppController.getInstance().addToRequestQueue(strReq, "ConstantInfo");
    }

private void JsonOrnegiFonksiyonu(){ final StringRequest strReq = new StringRequest(Request.Method.GET, "http://erkanyesersin.com/ornekJson.php", new Response.Listener<String>() { @Override public void onResponse(String response) { try { jsonResponse = ""; JSONObject jObj=new JSONObject(response); boolean error = jObj.getBoolean("error"); if (!error) { JSONArray questionsArray = jObj.getJSONArray("sabitler"); for (int i = 0; i < questionsArray.length(); i++) { JSONObject c = questionsArray.getJSONObject(i); String yoneticiAdi = c.getString("yoneticiAdi"); String yoneticiMail = c.getString("yoneticiMail"); String yoneticiIban = c.getString("yoneticiIban"); jsonResponse += "Name: " + yoneticiAdi + "\n\n"; jsonResponse += "Email: " + yoneticiMail + "\n\n"; jsonResponse += "Home: " + yoneticiIban + "\n\n"; } txtResponse.setText(jsonResponse); } } catch (JSONException e) { Log.i("BekleyenSiparis","Excep "+e.getMessage()); e.printStackTrace(); } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { VolleyLog.d(TAG, "Error: " + error.getMessage()); Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_SHORT).show(); } }); AppController.getInstance().addToRequestQueue(strReq, "ConstantInfo"); }

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  private void jsonSave(){
        StringRequest stringRequest = new StringRequest(Request.Method.POST,
                "http://erkanyesersin.com/test.php",new Response.Listener<String>(){
 
            @Override
            public void onResponse(String response) {
                try {
                    JSONObject jObj = new JSONObject(response);
                    Toast.makeText(getApplicationContext(),jObj.getString("mesaj"),Toast.LENGTH_LONG).show();
                } catch (JSONException e) {
                    e.printStackTrace();
                }
 
            }
        }, new Response.ErrorListener() {
 
            @Override
            public void onErrorResponse(VolleyError error) {
                Log.e(TAG, "Registration Error: " + error.getMessage());
                Toast.makeText(getApplicationContext(),
                        error.getMessage(), Toast.LENGTH_LONG).show();
 
            }
        }) {
            //Esas post işini yapan kısım.
            @Override
            protected Map<String, String> getParams() {
                Map<String, String> params = map;
                map.put("test", "erkanssss");
                //burada put: ilk parameter $_POST["test"] olandır. Diğeride postun değeridir.
                return params;
            }
 
        };
        AppController.getInstance().addToRequestQueue(stringRequest, "ers");
    }

private void jsonSave(){ StringRequest stringRequest = new StringRequest(Request.Method.POST, "http://erkanyesersin.com/test.php",new Response.Listener<String>(){ @Override public void onResponse(String response) { try { JSONObject jObj = new JSONObject(response); Toast.makeText(getApplicationContext(),jObj.getString("mesaj"),Toast.LENGTH_LONG).show(); } catch (JSONException e) { e.printStackTrace(); } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { Log.e(TAG, "Registration Error: " + error.getMessage()); Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show(); } }) { //Esas post işini yapan kısım. @Override protected Map<String, String> getParams() { Map<String, String> params = map; map.put("test", "erkanssss"); //burada put: ilk parameter $_POST["test"] olandır. Diğeride postun değeridir. return params; } }; AppController.getInstance().addToRequestQueue(stringRequest, "ers"); }