I just encountered this very same issue (using daily build 1054.) It works fine on Kindle Fire HD, but on Kindle Fire 1st Gen, there is an issue with properly getting text input via native.newTextField.
All I want is for a user to create a user name by entering a simple text string to native.newTextField. But as rmbsoft noted, it simply doesn’t work. Same is true with a screen where user gets to enter another player’s user name to start a match game.
However, on a screen where I have two newTextField, this issue does not surface. Rather inconsistent and bewildering – and annoying.
It sounds like I need to add a Done button on these screens in Kindle Fire build. Thank you for sharing your solution. I’ll give that a shot.
Naomi