Handle Volley error
android, android-volley, error-handling
Solution
The networkResponse is null because in a TimeoutError no data is received from the server -- hence the timeout. Instead, you need generic client side strings to display when one of these events occur. You can check for the VolleyError's type using instanceof to differentiate between error types since you have no network response to work with -- for example:
@Override
public void onErrorResponse(VolleyError error) {
if (error instanceof TimeoutError || error instanceof NoConnectionError) {
Toast.makeText(context,
context.getString(R.string.error_network_timeout),
Toast.LENGTH_LONG).show();
} else if (error instanceof AuthFailureError) {
//TODO
} else if (error instanceof ServerError) {
//TODO
} else if (error instanceof NetworkError) {
//TODO
} else if (error instanceof ParseError) {
//TODO
}
}
Problem
I want to handle and show some message in `onErrorResponse` below is my code. ``` String url = MainActivity.strHostUrl+"api/delete_picture"; jobjDeleteImage = new JsonObjectRequest(Request.Method.POST, url, jobj, new Response.Listener<JSONObject>() { @Override public void onResponse(JSONObject response) { Log.e("Image response", response.toString()); } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { Log.e("Volly Error", error.toString()); NetworkResponse networkResponse = error.networkResponse; if (networkResponse != null) { Log.e("Status code", String.valueOf(networkResponse.statusCode)); } } }); ``` I want to handle `com.android.volley.TimeoutError` and also some other error code like 404, 503 etc and `Toast` message here.