Resize Android Keyoard

I'm afraid you can't do that but even if you find a hidden path to do this thing I would be against that. Your solution may work on one tablet and but may not for other android devices that have different screen sizes/layouts. For example on android phones when you tap into an editbox a special input window pops up that contains only an editbox and a keyboard. Nothing else fits on the screen. On devices with larger screen size it handles input in a different way. Its better to use native editboxes and let android to handle the input for you. You can help android by placing your editboxes/gui elements in a ways so that they remain on the screen on tablets even if the keyboard becomes visible. Another popular practice is showing dialogs to get user input - this way android is allowed to alter the position of the dialog when the keyboardopens even if you display the data on the bottom of your "main window". This dialog trick is a useful technique especially if your main gui is not built from native controls but is a rendered one (in case of games).