Adding text input to a blackberrycanvas

The BlackBerryCanvas documentation says:

This class extends the functionality of the Canvas class to include full touch support and featured text input support.

I have extended BlackBerryCanvas, but am having trouble adding any text input.

It's not that I know what to do but cannot get it work -- I simply do not know how to add a text input box or field.

EDIT: Or have I misunderstood and this is not possible? From reading around, it seems as though it is, but I'm starting to wonder why it's so hard to find anything on it.

EDIT2: I'm think maybe it's something to do with the Black开发者_Python百科BerryTextBox?

EDIT3:

Applications using this class can call the #setInputHelper method to get the text input support.

might also be something. It hasn't given me quite enough clues to be able to do it myself though I'm afraid.

Thanks.

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If you don't particularly need to use the Canvas hierarchy, I suggest you use the more commonly used Field hierarchy.

That means you should create an application and start with a Screen. An easy concrete implementation of Screen is the FullScreen. To get the text input you are seeking, add an AutoTextEditField to the screen.