Using StageText for AIR applications

Adobe AIR 3 includes a great new feature: StageText. Using the normal TextField for text input works just fine, but this new TextField-like class allows you to control your text input more closely (especially on mobile devices) with many options┬álike auto capitalization, software keyboard type, and more. It has its caveats (it’s a separate class, and it gets added to the top of the stage, so there’s no display list control) but overall it’s a great feature addition to Adobe AIR and the Flash platform as a whole.

Only that when I was trying to use it (with Flex 4.5 and AIR 3), it wouldn’t work, but instead fail with this error message during execution (even though StageText was included on airglobal.swc):

Exception fault: VerifyError: Error #1014: Class flash.text::StageText could not be found.

An online search for the error and its meaning provided no results (!) – information on the new class is pretty hard to come by. So after some trial and error (and luckily stumbling into this video about setting up FDT for Adobe AIR 3 and Flash Player 11 development), the reason is: you need to tell the Flex SDK compiler to compile against a newer version of the SWF format that enables that feature.

So the solution is simple: just add this parameter to your Flex SDK compilation settings (this is in addition to any target-player switch already present).


It should then work flawlessly.

Stage Text example

Read more about that switch here. The same applies when using StageVideo.

  • whoizz

    how did you came across the scrolling issue?

  • zeh

    Which scrolling issue?

  • Roberto Garcia


    How would this work for application from flash
    I have searched but can not find the way

  • Awesome man, I had same problem and if it wasnt for your post it would have taken for ever to fix. TYVM

  • Also, when you’re using non-native input method in your mobile device, such Swype in Android, there’s a lot of problem using Flash text field input, which is solved by using StageText.