Same issue here!
Thanks for the information!
-Moto!
On Oct 11, 3:11 pm, ccfrazier2 <georgefraz...@yahoo.com> wrote:
> Romain,
>
> Fantastic, thanks for the help! I've had customers contact me over the
> months about
> force closes that I can never get to the bottom of. This likely has
> fixed the lingering
> issues. Great news! Thanks,
>
> pawpaw17
>
> On Oct 11, 2:08 pm, Romain Guy <romain...@google.com> wrote:
>
> > > In my background thread if I add < 100 elements to the array,
> > > everything works great. If
> > > I add more than 300 though I get the crash. Is this capacity related.
>
> > No, this is related to the use of threads. Even adding 1 element could
> > cause the crash. You just cannot really predict the behavior. That's
> > why this exception was added, to help you write your apps correctly.
> > Otherwise your app would look like it's working except in some cases
> > bad things would happen (crash in the UI toolkit, surprising behavior
> > in the UI, etc.)
>
> > > How are we supposed to populate an array list associated with an array
> > > adapter when we are
> > > grabbing stuff out of the database in a background thread? Do we just
> > > do the database read in
> > > the background and then process the results from the cursors in the UI
> > > thread?
>
> > That's a possibility. You could also just use a CursorAdapter. You
> > could also use an AsyncTask and add new elements to the array using
> > publishProgress() every X elements processed.
>
> > > Very best regards
>
> > > pawpaw17
>
> > > in OnCreate...
> > > if (aa == null){
> > > aa = new myArrayAdapter(this);
> > > }
> > > lList.setAdapter(aa);
>
> > > Thread thread = new Thread(null, doSearchDatabase,
> > > "Background");
> > > thread.start();
> > > }
>
> > > myArrayAdapter aa = null;
> > > final ArrayList<MyStats> myArrayList = new ArrayList<MyStats>();
>
> > > class myArrayAdapter extends ArrayAdapter {
> > > Activity context;
> > > myArrayAdapter(Activity context) {
> > > super(context, R.layout.caloriesrow, myArrayList);
> > > this.context=context;
> > > }
>
> > > On Oct 11, 1:36 pm, Romain Guy <romain...@google.com> wrote:
> > >> --> myArrayList.add(i, new CalStats(name, extra, calories));
>
> > >> if that's the array list used by your adapter then you are modifying
> > >> it outside of the UI thread.
>
> > >> On Sun, Oct 11, 2009 at 11:07 AM, ccfrazier2 <georgefraz...@yahoo.com>
> > >> wrote:
>
> > >> > Yeah, it's the main thread of my app, here's the stack:
>
> > >> > myApp [Android Application]
> > >> > myApp [Android Application]
> > >> > DalvikVM[localhost:8613]
> > >> > Thread [<3> main] (Suspended (exception
> > >> > IllegalStateException))
> > >> > Thread [<15> Binder Thread #3] (Running)
> > >> > Thread [<13> Binder Thread #2] (Running)
> > >> > Thread [<11> Binder Thread #1] (Running)
>
> > >> > Thread [<3> main] (Suspended (exception IllegalStateException))
> > >> > ListView.layoutChildren() line: 1596
> > >> > ListView(AbsListView).onLayout(boolean, int, int, int, int)
> > >> > line:
> > >> > 1112
> > >> > ListView(View).layout(int, int, int, int) line: 6569
> > >> > LinearLayout.setChildFrame(View, int, int, int, int) line: 1119
> > >> > LinearLayout.layoutVertical() line: 998
> > >> > LinearLayout.onLayout(boolean, int, int, int, int) line: 918
> > >> > LinearLayout(View).layout(int, int, int, int) line: 6569
> > >> > FrameLayout.onLayout(boolean, int, int, int, int) line: 333
> > >> > FrameLayout(View).layout(int, int, int, int) line: 6569
> > >> > LinearLayout.setChildFrame(View, int, int, int, int) line: 1119
> > >> > LinearLayout.layoutVertical() line: 998
> > >> > LinearLayout.onLayout(boolean, int, int, int, int) line: 918
> > >> > LinearLayout(View).layout(int, int, int, int) line: 6569
> > >> > PhoneWindow$DecorView(FrameLayout).onLayout(boolean, int, int,
> > >> > int,
> > >> > int) line: 333
> > >> > PhoneWindow$DecorView(View).layout(int, int, int, int) line:
> > >> > 6569
> > >> > ViewRoot.performTraversals() line: 979
> > >> > ViewRoot.handleMessage(Message) line: 1613
> > >> > ViewRoot(Handler).dispatchMessage(Message) line: 99
> > >> > Looper.loop() line: 123
> > >> > ActivityThread.main(String[]) line: 4203
> > >> > Method.invokeNative(Object, Object[], Class, Class[], Class,
> > >> > int,
> > >> > boolean) line: not available [native method]
> > >> > Method.invoke(Object, Object...) line: 521
> > >> > ZygoteInit$MethodAndArgsCaller.run() line: 791
> > >> > ZygoteInit.main(String[]) line: 549
> > >> > NativeStart.main(String[]) line: not available [native method]
>
> > >> > None of my code in this stack.
>
> > >> > Any thoughts on how to track this down? I'm sure I'm doing something
> > >> > wrong - but it was never a problem
> > >> > as far as I knew running with 1.5.
>
> > >> > I spawn a thread at the end of "OnCreate" in my Activity that reads
> > >> > values from a database and populates
> > >> > the listView. The database reading is done in the worker thread, and I
> > >> > sort the list and tell the arrayadapter
> > >> > to notify tht the list has changed in a routine that gets called from
> > >> > my handler, ie I post at the end of the run
> > >> > method of the worker thread so I can notify the array adapter from the
> > >> > UI thread.
>
> > >> > private void fillList(){
> > >> > Collections.sort(myArrayList);
> > >> > // aa is an arrayAdapter
> > >> > aa.notifyDataSetChanged();
> > >> > }
>
> > >> > Thanks for any thoughts you guys have on this.
>
> > >> > Very best,
>
> > >> > pawpaw17
>
> > >> > On Oct 11, 10:20 am, RichardC <richard.crit...@googlemail.com> wrote:
> > >> >> When you get the error, can you see from the traceback which thread
> > >> >> you are in?
>
> > >> >> --
> > >> >> RichardC
>
> > >> >> On Oct 11, 4:06 pm, ccfrazier2 <georgefraz...@yahoo.com> wrote:
>
> > >> >> > Romain,
>
> > >> >> > thanks for confirming that this message is new in 1.6.
>
> > >> >> > Actually, I mean to write "I'm sure my adapter mods are IN the UI
> > >> >> > thread, not the background thread". Anything else that can cause
> > >> >> > this?
>
> > >> >> > If I step through the code in the debugger I don't get the
> > >> >> > exception,
> > >> >> > but I I run without stepping I do. Also, when I run the phone on
> > >> >> > the app, I can get it to "work" 3 or 4 times, and then eventually
> > >> >> > I'll
> > >> >> > get the force close.
>
> > >> >> > Can anything else cause this?
>
> > >> >> > Here's my code in the background thread:
>
> > >> >> > public void run(){
> > >> >> > int i = 0;
> > >> >> > lsDb.openDataBase();
> > >> >> > rescursor = lsDb.Search();
> > >> >> > if (rescursor.getCount() > 0){
> > >> >> > id_index = rescursor.getColumnIndex("_id");
> > >> >> > name_index = rescursor.getColumnIndex("Name");
> > >> >> > calories_index =
> > >> >> > rescursor.getColumnIndex("Calories");
> > >> >> > extra_index =
> > >> >> > rescursor.getColumnIndex("sodium");
> > >> >> > }
> > >> >> > if (rescursor.moveToFirst()){
> > >> >> > do {
> > >> >> > int id = rescursor.getInt(id_index);
> > >> >> > String name =
> > >> >> > rescursor.getString(name_index);
> > >> >> > int calories =
> > >> >> > rescursor.getInt(calories_index);
> > >> >> > double extra=
> > >> >> > rescursor.getDouble(extra_index);
> > >> >> > //
> > >> >> > add
> > >> >> > to array list
> > >> >> > myArrayList.add(i, new
> > >> >> > CalStats(name, extra, calories));
> > >> >> > i++;
> > >> >> > }
> > >> >> > while (rescursor.moveToNext());
> > >> >> > }
> > >> >> > rescursor.close();
> > >> >> > lsDb.close();
> > >> >> > hh.post(postdoSearchDatabase);
> > >> >> > }
>
> > >> >> > The "post" at the end is to a handler. I **do** modify the adapter
> > >> >> > in
> > >> >> > the run method there.
>
> > >> >> > On Oct 11, 1:36 am, Romain Guy <romain...@google.com> wrote:
>
> > >> >> > > It's not a bug, it's a message that was added to notify app
> > >> >> > > developers
> > >> >> > > of applications that are doing the wrong thing.
>
> > >> >> > > > I'm sure my adapter mods are not in the UI thread.
>
> > >> >> > > Which is exactly the problem.
>
> > >> >> > > --
> > >> >> > > Romain Guy
> > >> >> > > Android framework engineer
> > >> >> > > romain...@android.com
>
> > >> >> > > Note: please don't send private questions to me, as I don't have
> > >> >> > > time
> > >> >> > > to provide private support. All such questions should be posted
> > >> >> > > on
> > >> >> > > public forums, where I and others can see and answer them- Hide
> > >> >> > > quoted text -
>
> > >> >> - Show quoted text -
>
> > >> --
> > >> Romain Guy
> > >> Android framework engineer
> > >> romain...@android.com
>
> > >> Note: please don't send private questions to me, as I don't have time
> > >> to provide private support. All such questions should be posted on
> > >> public forums, where I and others can see and answer them- Hide quoted
> > >> text -
>
> > >> - Show quoted text
>
> ...
>
> read more »
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