I should mention that the runtime error does not occur in this line
here

AlertDialog.Builder b = new AlertDialog.Builder(getApplicationContext
());

but when calling

b.show()

later on. According to DDMS, the WindowManager crashes because it is
trying to add a new Window (the dialog) with a token=null. How can
that be? Especially when the Toast message gets displayed properly and
that is created and shown even before creating that Builder instance.
I thought that maybe the application context wasn't fully initialized
yet, so I moved all the code to the onStart() method. Well, needless
to say that did not work either. Any clues?


Best wishes, Matt


On 10 Nov., 21:53, Justin Anderson <janderson....@gmail.com> wrote:
> Shoot... I was kinda hoping they were in different parts of your code.  I'm
> going to have to punt this one off to someone else...
>
> Anyone?
>
> ----------------------------------------------------------------------
> There are only 10 types of people in the world...
> Those who know binary and those who don't.
> ----------------------------------------------------------------------
>
> On Tue, Nov 10, 2009 at 1:27 PM, Matt <reisc...@googlemail.com> wrote:
> > I have all the following code in my onCreate() method.
>
> > Toast.makeText(getApplicationContext(), "Hello World!",
> > Toast.LENGTH_SHORT).show();
> > AlertDialog.Builder b = new AlertDialog.Builder(getApplicationContext
> > ());
>
> > [Dialog configuration]
>
> > b.show();
>
> > While the Toast message gets displayed right away, the AlertDialog
> > won't. Instead there is a runtime error. Like I said, if you replace
> > the "getApplicationContext()" with "this", it works flawlessly.
>
> > On 10 Nov., 20:44, Justin Anderson <janderson....@gmail.com> wrote:
> > > That's interesting.  I've never run into that problem before.  It
> > probably
> > > has something to do with what classes you are in or something like that.
>
> > > Here's a question... did you try the Toast in the same place where using
> > > AlertDialog.Builder gives an error or were they in different parts of
> > your
> > > code?
>
> > > Thanks,
> > > Justin
>
> > > ----------------------------------------------------------------------
> > > There are only 10 types of people in the world...
> > > Those who know binary and those who don't.
> > > ----------------------------------------------------------------------
>
> > > On Tue, Nov 10, 2009 at 12:16 PM, Matt <reisc...@googlemail.com> wrote:
> > > > Hi everybody,
>
> > > > can somebody please explain why
>
> > > > AlertDialog.Builder b = new AlertDialog.Builder(getApplicationContext
> > > > ());
>
> > > > will result in a runtime error, while
>
> > > > AlertDialog.Builder b = new AlertDialog.Builder(this);
>
> > > > will run just fine? I can use "this" and "getApplicationContext()"
> > > > with Toast.makeText() interchangeably without any problems. What is
> > > > different with that AlertDialog.Builder? Any ideas?
>
> > > > Cheers, Matt
>
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