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copied!<blockquote> <p>What do i have to write into onPostExecute and the Activity grab the string from doInBackground?</p> </blockquote> <p>When you are using <code>AsyncTask</code> then you can update your <code>UI</code> only on <code>onProgressUpdate</code> and <code>onPostExecute</code> method. <br><br>Your <code>doInBackground()</code> method returns some data and these data is going to <code>onPostExecute</code> method(it depends also how your generic are declared). <br><br>Generally, there is no another approaches how to do it.</p> <p>You meant this:</p> <pre><code>AsyncTask a = new AsyncTask(Context); a.execute(Input); </code></pre> <p>First means that your constructor looks like</p> <pre><code>public MyAsync(Context c) { this.c = c; } </code></pre> <p>Second means that you declared your first generic type(assumption Input param is <code>String</code>) as</p> <pre><code>private class MyAsync extends AsyncTask<String, Void, String> { //... } </code></pre> <p><br>And you want to update <code>UI</code> with <code>String</code> that returns <code>doInBackground()</code> method and merely place is <code>onPostExecute</code> method with <code>IN</code> parameter <code>String</code> that returns <code>doInBackground()</code>.<br><br></p> <pre><code>protected void onPostExecute(String stringReturnedFromDoInBackground) { // some work } </code></pre> <p><br>So if you want to do it in different way, change your application logic and use for example <code>ResultReceiver</code> with <code>IntentService</code>.</p>

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