Android aSyncTask and starting another activity?

The problem I was experiencing here was actually to do with the viewpager I have on the main activity.

The problem I was experiencing here was actually to do with the viewpager I have on the main activity. As the AsyncTask was creating a cursor for the PagerAdapter I wasn't setting the adapter until it had finished. There is a known problem with ViewPagers and activity onPause when an adapter has not been set (see here).

To overcome this I modified my adapter to return 0 when there is no cursor available to the adapter: public int getCount() { // return the size of the cursor if it has been instantiated; return (mCursor! =null)? MCursor.getCount() : 0 ; } and added a setCurrentCursor method to the adapter.

This way I was able to set the adapter up and bind it to the viewpager in onCreate and then add the cursor to the adapter when it became available from the ASyncTask; public void setCurrentCursor(Cursor cu){ this. MCursor = cu; this. NotifyDataSetChanged(); } Now all I have to do is call adapter.

SetCurrentCursor in the onPostExecute method of the ASyncTask passing in the created cursor. Hope this helps. Thanks, m.

First try to cancel the asynctask and then start another activity may be that work for you.

I don't really want to cancel it. It's correct for it to continue running even if a different activity is started. – mAndroid Sep 27 at 7:41 if you want to running even if a different activity is started then use service and put your logic there if it is possible in your case.

– Vijay Sep 27 at 9:12 does you mean that it is not possible to have an AsyncTask running while the parent UI activity is paused? – mAndroid Sep 28 at 1:03.

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