This may seem weird, but try doing this:

b.create().show();

I have never actually used the show method on the Builder class (I didn't
realize it existed) and have never had any problems displaying a dialog.

----------------------------------------------------------------------
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 4:31 PM, Matt <reisc...@googlemail.com> wrote:

> 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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