I want to parse the JSON array to grid view parsing is done but Error raising in gridview adapter

Here I attached my whole code to make this clear and to understand the error
Below is my Parsing code using Volley

private void getData()
{
final ProgressDialog loading = ProgressDialog.show(this,"Loading","please wait",false,false);
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET,DATA_URL,null,new Response.Listener<JSONObject>(){

@Override
public void onResponse(JSONObject response) {
loading.dismiss();
showGrid(response.optJSONArray("data"));
}
},
new Response.ErrorListener(){

@Override
public void onErrorResponse(VolleyError error) {
loading.dismiss();
Toast.makeText(getApplicationContext(),error.getMessage()+",hello everybody",Toast.LENGTH_LONG).show();
}
}
);

RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(jsonObjectRequest);
}


Below Is Adapter class

I am getting error in adapter class @"Custom volley request" as Null pointer exception. Please help me to solve that issue.

public class GridHomeAdapter extends BaseAdapter {

//Imageloader to load images
private ImageLoader imageLoader;

//Context
private Context context;

//Array List that would contain the urls and the titles for the images
private ArrayList<String> category_image;
private ArrayList<String> category_name;

public GridHomeAdapter(Context context, ArrayList<String> category_image, ArrayList<String> category_name)
{
this.context = context;
this.category_image = category_image;
this.category_name = category_name;
}

@Override
public int getCount() {
return category_image.size();
}

@Override
public Object getItem(int i) {
return category_image.get(i);
}

@Override
public long getItemId(int i) {
return 0;
}

@Override
public View getView(int i, View view, ViewGroup viewGroup) {

//Creating a linear or frame layout
LinearLayout linearLayout = new LinearLayout(context);
linearLayout.setOrientation(linearLayout.VERTICAL);

//NetworkImageView
NetworkImageView networkImageView = new NetworkImageView(context);

//Initializing ImageLoader
imageLoader = CustomVolleyRequest.getInstance(context).getImageLoader();
imageLoader.get(category_image.get(i), ImageLoader.getImageListener(networkImageView,R.mipmap.ic_launcher,android.R.drawable.ic_dialog_alert));

//Setting the image url to load
networkImageView.setImageUrl(category_image.get(i),imageLoader);

//Creating a textview to show the title
TextView textView = new TextView(context);
textView.setText(category_name.get(i));

//Scaling the imageview
networkImageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
networkImageView.setLayoutParams(new GridView.LayoutParams(200,200));

//Adding views to the layout
linearLayout.addView(textView);
linearLayout.addView(networkImageView);

//Returnint the layout
return linearLayout;
}


Below is CustomVolleyRequest class code. I saw som tutorial on this and wrote this code.

public class CustomVolleyRequest {

private static CustomVolleyRequest customVolleyRequest;
private static Context context;
private RequestQueue requestQueue;
private ImageLoader imageLoader;

private CustomVolleyRequest(Context context) {
this.context = context;
this.requestQueue = getRequestQueue();

imageLoader = new ImageLoader(requestQueue, new ImageLoader.ImageCache() {

private final LruCache<String, Bitmap>
cache = new LruCache<String, Bitmap>(20);

@Override
public Bitmap getBitmap(String url) {
return cache.get(url);
}

@Override
public void putBitmap(String url, Bitmap bitmap) {
cache.put(url, bitmap);
}
});
}


public static synchronized CustomVolleyRequest getInstance(Context context) {
if (customVolleyRequest == null) {
customVolleyRequest = new CustomVolleyRequest(context);
}
return customVolleyRequest;
}
public RequestQueue getRequestQueue()
{
if (requestQueue == null){
Cache cache = new DiskBasedCache(context.getCacheDir(),10*1024*1024);
Network network = new BasicNetwork(new HurlStack());
requestQueue = new RequestQueue(cache,network);
requestQueue.start();
}
return requestQueue;
}
public ImageLoader getImageLoader(){
return imageLoader;
}


}
THis the logcat

Post the logcat
– sHOLE
Jun 30 at 6:25

attach the stacktrace for the exception
– Udit
Jun 30 at 6:35

posted my logcat
– Mercedes Muthu
Jun 30 at 11:17

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