Well only on task is launched but the spinner option value selected is used as a parameter to the async task....
On Wed, Dec 21, 2011 at 11:42 PM, Kostya Vasilyev <[email protected]>wrote: > To represent multiple tasks, I'd use any suitable data structure (hash > map, sparse array, plain java array, etc.) > > I'd then carry this entire data structure across configuration changes, > making sure to get it in onCreate. > 22.12.2011 3:35 пользователь "João Rossa" <[email protected]> написал: > > Ok, so if you had a spinner where each option would be used as a parameter >> to an async task but you didnt want to repeat that same async task after >> rotating what would be best approach? >> >> regards, >> >> On Wed, Dec 21, 2011 at 11:24 PM, Kostya Vasilyev <[email protected]>wrote: >> >>> You can launch the task any place you like, just don't expect to be able >>> to check if one already exists by calling getLast... (sorry, I'm not typing >>> that again) anywhere but in onCreate. >>> >>> So: call getLast in onCreate, save the value someplace, and then you'll >>> have a way of checking if you need to launch a new task or wait for an >>> existing one to complete. >>> 22.12.2011 3:18 пользователь "João Rossa" <[email protected]> >>> написал: >>> >>> But if i want to launch a task based on the spinner value how do you >>>> that without calling the task in the itemlistener? >>>> >>>> regards, >>>> >>>> On Wed, Dec 21, 2011 at 10:34 PM, Kostya Vasilyev >>>> <[email protected]>wrote: >>>> >>>>> 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 <[email protected]> >>>>> 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 <[email protected]> >>>>> >> >>>>> >> 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 < >>>>> [email protected]> >>>>> >> 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, >>>>> >> > >>>>> >> > >>>>> >> > -- >>>>> >> > You received this message because you are subscribed to the Google >>>>> >> > Groups "Android Developers" group. >>>>> >> > To post to this group, send email to >>>>> [email protected] >>>>> >> > To unsubscribe from this group, send email to >>>>> >> > [email protected] >>>>> >> > For more options, visit this group at >>>>> >> > http://groups.google.com/group/android-developers?hl=en >>>>> >> >>>>> >> -- >>>>> >> You received this message because you are subscribed to the Google >>>>> >> Groups "Android Developers" group. >>>>> >> To post to this group, send email to >>>>> [email protected] >>>>> >> To unsubscribe from this group, send email to >>>>> >> [email protected] >>>>> >> For more options, visit this group at >>>>> >> http://groups.google.com/group/android-developers?hl=en >>>>> > >>>>> > >>>>> > -- >>>>> > You received this message because you are subscribed to the Google >>>>> > Groups "Android Developers" group. >>>>> > To post to this group, send email to >>>>> [email protected] >>>>> > To unsubscribe from this group, send email to >>>>> > [email protected] >>>>> > For more options, visit this group at >>>>> > http://groups.google.com/group/android-developers?hl=en >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Android Developers" group. >>>>> To post to this group, send email to >>>>> [email protected] >>>>> To unsubscribe from this group, send email to >>>>> [email protected] >>>>> For more options, visit this group at >>>>> http://groups.google.com/group/android-developers?hl=en >>>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Android Developers" group. >>>> To post to this group, send email to >>>> [email protected] >>>> To unsubscribe from this group, send email to >>>> [email protected] >>>> For more options, visit this group at >>>> http://groups.google.com/group/android-developers?hl=en >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To post to this group, send email to [email protected] >>> To unsubscribe from this group, send email to >>> [email protected] >>> For more options, visit this group at >>> http://groups.google.com/group/android-developers?hl=en >>> >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Android Developers" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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