AsyncTask HttpParams

I'm using AsyncTask in an API to carry out the network operations. At UI part there is a button, clicking on which triggers API to execute request/async task. API is implementing the callback which is updated from onPostExecute() method. API gets the right data populated once onPostExecute() passes data over to callback. This all works good.

I'm trying to upload image to webService but I couldn't do it and I searched lots of topics on here and on the internet but could't find good solution.

When I run this code I'm getting Bad Request error.

Here is my code that I'm trying :

public static String imgUpload(String url, List<NameValuePair> list, List<String> images){

String result = Constants.EMPTY; Bitmap

I am trying to update mysql database using on 1and1 using php and jason. The database is getting updated but with empty records.

In my asyncTask doInBackground() method I want to handle exception by making a toast. But I am unable to do so, and this is exception I get. Why is that? P.S. I can do it in onPreExecute() and onPostExecute().

My android app uses a single Activity which creates a single SurfaceView which is not defined in the manifest, and all of my UI elements are custom. Now I'm trying to make an asynchronous HTTP call and I can't access any of my application's classes.

I added a class that extends AsyncTask and when creating a table sends me at android.app.Activity.findViewById.

Here the exception:

FATAL EXCEPTION: main java.lang.NullPointerException at android.app.Activity.findViewById(Activity.java:1744) at com.fincomun.activity.ConsultaCuentas.doActivity(ConsultaCuentas.java:380) at com.fincomun.activity.ConsultaCuentas.conectaURLCuenta(Consulta

I am not reaching an onPostExecute in an AsyncTask Class.

I call the task this way, inside an onClick in a dialog box:

new HelpfulTask().execute(passing);

Note: When I hover over the above code, I get a warning:

A generic Array of ArrayList is created for a varargs parameter.

I am not sure what that means and if that is preventing my Task from even running?

Here is the Task Code:

p

In an Android activity I'm executing an AsyncTask in onCreate method. Should I declare the handler function of UI buttons inside onPostExecute of AsyncTask or in OnCreate method? Can I create another AsyncTask inside this button onClick handler? Thanks

I am loading an HTTP request in the background using loopj HTTP CLIENT and when it is done, I want to display a "success" notification (dialog, toast, etc.)

I have the code in a seperate (non-activity) class with a static method that executes the background request. In the end, the response is in a AsyncHttpResponseHandler under a onSuccess method.