What is this error in logcat? It says "can't create handler inside thread that has not called looper.prepare()" ...
On Jul 31, 1:59 pm, Mystique <[email protected]> wrote: > Nice, the dialog appear but DoSometing() crash for some reason. > At least the logic work, let me check on the DoSomething(). It was ok > w/o running as thread. > > Many thanks. > > On Jul 31, 1:17 pm, paulb <[email protected]> wrote: > > > > > Actually, I meant to write runInUIThread instead of closeLoadingDialog > > in the handler.post statement > > > On Sat, Jul 31, 2010 at 3:16 PM, paulb <[email protected]> wrote: > > > Hello Mystique, > > > > When this code starts the thread, it then goes straight back to > > > execute DoSomeTask() while the thread is running, and so most of the > > > time the dialog will be shown after DoSomeTask. > > > > Maybe you meant to do something like this: > > > > ProgressDialog dialog; > > > > final Runnable runInUIThread = new Runnable() { > > > public void run() { > > > dialog.dismiss(); > > > } > > > } > > > > �...@override > > > public void onClick(View v) { > > > // TODO Auto-generated method stub > > > > dialog = new ProgressDialog(CloseVault.this); > > > dialog.setMessage("Please wait..."); > > > dialog.show(); > > > > Thread myTask = new Thread() { > > > �...@override > > > public void run() { > > > DoSomeTask(); > > > handler.post(closeLoadingDialog); > > > } > > > }; > > > myTask.start(); > > > } > > > > You are right, though, ASyncTask is a nicer way of doing it. > > > > On Sat, Jul 31, 2010 at 2:52 PM, Mystique <[email protected]> wrote: > > >> Hi, > > >> I'm trying to learn AsyncTask and Thread but Thread first... > > >> I am trying to display a Dialog before "DoSomeTask()" but seems like > > >> the Dialog always come after DoSomeTask(). > > >> Did I do something wrong here? > > > >> Thanks. > > > >> --- code--- > > > >> @Override > > >> public void onClick(View v) { > > >> // TODO Auto-generated method stub > > > >> mainProcessing(); > > >> DoSomeTask(); > > >> } > > > >> private void mainProcessing() { > > >> Thread thread = new Thread(null, doBackgroundThreadProcessing, > > >> "Background"); > > >> thread.start(); > > >> } > > > >> private Runnable doBackgroundThreadProcessing = new Runnable() { > > >> public void run() { > > >> backgroundThreadProcessing(); > > > >> } > > >> }; > > > >> private void backgroundThreadProcessing() { > > >> handler.post(doUpdateGUI); > > >> } > > > >> private Runnable doUpdateGUI = new Runnable() { > > >> public void run() { > > >> updateGUI(); > > >> } > > >> }; > > > >> private void updateGUI() { > > >> final ProgressDialog dialog = new > > >> ProgressDialog(CloseVault.this); > > >> dialog.setMessage("Please wait..."); > > >> dialog.show(); > > >> } > > > >> -- > > >> 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
