Is there any resource to add t9 specific keyboard in lightningjs
Hi there is not an T9 keybaord available out of the box, but we have 2 keyboard implementation available in our ui-component package, you can find example implementation in this public repo: GitHub - mlapps/ui-component-examples
You could change the logic a bit that it chooses from a sequence of characters per button instead of one. So a keypress on a button cycles through an array of characters.
Keep in mind that you need to build that part of the logic yourself. I suggest giving it a try and keeping us up to date