Hide Android keyboard key preview

Question

What I'm looking to do is hide only the popups that show what key you are currently pressing while using a soft keyboard. Is this possible? I am creating my own new keyboard which will have no need for them.

From what I think I understand, the picture below is the actual popup keyboard that you can choose to show using android:popupKeyboard and android:popupCharacters in the Keyboard.Key XML.

But the image below is not the same (also see this picture). Is there a way to turn the following off, using XML or even programmatically?

Answer 1

After reading a little bit of the actual android keyboard source code:

What I was referring to was the "key preview", which is "a popup that shows a magnified version of the depressed key." By default the preview is enabled, but to disable it, simply enough, is setPreviewEnabled(boolean previewEnabled). Which is a method from the KeyboardView class. API.

Answer 2

public void onPress(int primaryCode) {
     mInputView.setPreviewEnabled(false);
}

public void onRelease(int primaryCode) {
    mInputView.setPreviewEnabled(true); //Change to false if you want remove too for the Del key when it's pressed
}

Additionally, To get the view and universally disable the preview from within a custom class extending InputMethodService

    private KeyboardView mInputView;
    @Override
    public KeyboardView onCreateInputView() {
        mInputView = (KeyboardView)getLayoutInflater().inflate(R.layout.keyboard, null);
        mInputView .setPreviewEnabled(false);
        return mInputView;
    }