I am working on a children\'s book app and would like to dynamically populate speech bubble(s) for character dialogues as shown in attached screenshots. Screenshots are from
The three20 framework (actually, Three20Style) has got a shaped window class called TTSpeechBubbleShape, which is basically what you are looking for.
Now, you have two options, as I see it:
either use Three20; or
analyze the TTSpeechBubbleShape class to see how this is implemented and do the same in your app.