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POaccessing view components after startActivity() in ASyncTask
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  1. POaccessing view components after startActivity() in ASyncTask
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    copied!<p>I have an AsyncTask which retrieves data from a server and then needs to start a new Activity to display the data.</p> <p>doing this within the ASync onPostExecute works... (but doesn't start the new activity)</p> <pre><code>setContentView(R.layout.activity_list); TextView textListDate = ((TextView)findViewById(R.id.textListDate)); textListDate.setText(FormatUtilities.formatDateLong(list.getDateFor())); </code></pre> <p>doing this results in a null pointer exception (due to TextListDate being null</p> <pre><code>Intent in = new Intent(super.getAppContext(), List.class); in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); super.getAppContext().startActivity(in); TextView textListDate = ((TextView)findViewById(R.id.textListDate)); textListDate.setText(FormatUtilities.formatDateLong(list.getDateFor())); </code></pre> <p>and doing this results in a screen loading with what i want, and then being blanked almost immediatley...</p> <pre><code>Intent in = new Intent(super.getAppContext(), List.class); in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); super.getAppContext().startActivity(in); setContentView(R.layout.activity_list); TextView textListDate = ((TextView)findViewById(R.id.textListDate)); textListDate.setText(FormatUtilities.formatDateLong(list.getDateFor())); </code></pre> <p>any suggestions on what I am missing? I assume it is something to do with findViewById trying to access the view of the "current" activity and not the new one...</p> <p>Do i somehow need to pass my data to the new Activity and do the findViewById inside the next activity?</p> <p>thanks for the help.</p>
 

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