The spinner has nothing to do with this, per se.
Get your exising task, if any, by calling getLast... *inside onCreate*.
22 декабря 2011 г. 2:19 пользователь João Rossa <joao.ro...@gmail.com> написал:
> So basically you can not use the combination of
> onRetainNonConfigurationInstance()/ getLastNonConfigurationInstance () with
> the task inside the spinner listener????because i wanted to aunch tasks
> according to the option selected of the spinner....
>
>
> 2011/12/21 Kostya Vasilyev <kmans...@gmail.com>
>>
>> The value returned by getLastNonConfigurationInstance is cleared to
>> null very soon after you're supposed to have used it - onCreate.
>>
>> So, don't delay, make it quick, grab it while you can, inside your
>> onCreate, and hold on to it.
>>
>> ( IIRC, the value doesn't stay around long enough to be retrieved in
>> onStart or onResume -- not to mention much later, when the UI is
>> completely up and running with your spinner )
>>
>> -- Kostya
>>
>> 22 декабря 2011 г. 0:06 пользователь Bluemercury <joao.ro...@gmail.com>
>> написал:
>> > Hi all! so currently i have an activity that laucnhes an async task from
>> > inside the spinner onItemSelected method with the select int year value:
>> >
>> > spinYears.setOnItemSelectedListener(
>> > new OnItemSelectedListener() {
>> >
>> > @Override
>> > public void onItemSelected(AdapterView<?> item, View arg1,
>> > int arg2, long arg3) {
>> >
>> > yearSelected=(Integer) item.getSelectedItem();
>> > doAsyncTask();
>> >
>> > }
>> >
>> > @Override
>> > public void onNothingSelected(AdapterView<?> arg0) {
>> > // TODO Auto-generated method stub
>> >
>> > }});
>> >
>> > here's the doAsyncTask method:
>> >
>> > /**
>> > * do asynctask for background work
>> > */
>> > public void doAsyncTask(){
>> > //get task back in case of rotation
>> > task= (QuadrosMobileActivityTask<?, ?,
>> > ?>)getLastNonConfigurationInstance();
>> >
>> > if(task==null){
>> > task=new PeriodoFeriasDbAsyncTask(this);
>> > ((PeriodoFeriasDbAsyncTask)task).execute(yearSelected);
>> > }else{
>> > task.attach(this);
>> > }
>> > }
>> >
>> >
>> > if i rotate the phone the task runs again, but if i put the
>> > doAsyncTask()
>> > method call outside of the listener it works as it should.....any reason
>> > for
>> > this?why would calling a task inside the spinner listener be different?
>> >
>> > regards,
>> >
>> >
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>
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