Android, StageText and the soft keyboard

How to keep the soft keyboard opened? I have a simple text form (1 text field as StageText, 1 button and a scrolling area, similar to sms chat application).

Click on the button or on the scrolling area causes a focus lost in StageText instance and the soft keybord closing (it causes app resize and other problems).

I tried various variants with assignFocus() function, using events SOFT_KEYBOARD_DEACTIVATE, FOCUS_OUT, MOUSE_DOWN.

Also, I tried to call assignFocus() with pause and several times during some period, I tried to move focus to other field and so on...

It was working partially if I created enterFrame event with assignFocus(), but it makes soft keyboard buttons to work very slow and soft keyboard closes when I remove enterFrame event.

This problem is for Android only, iOS version works just fine with MOUSE_DOWN -> assignFocus().

I'm using Flash CS 5.5 and CS 6, AIR 3.2 and AIR 3.3 beta and HTC Sensation with Android 2.3.5 for tests.

Also, I found that SoftKeyboardType.PUNCTUATION is not working with Android soft keyboard.