Well, I have created a sample keyboard for chatting here…
Here, I use popup window for showing popup window and height of popup is calculated dynamically by height of keyboard
// Initially defining default height of keyboard which is equal to 230 dip
final float popUpheight = getResources().getDimension(
R.dimen.keyboard_height);
changeKeyboardHeight((int) popUpheight);
// Creating a pop window for emoticons keyboard
popupWindow = new PopupWindow(popUpView, LayoutParams.MATCH_PARENT,
(int) keyboardHeight, false);
and height is calculated using this function :
/**
* Checking keyboard height and keyboard visibility
*/
int previousHeightDiffrence = 0;
private void checkKeyboardHeight(final View parentLayout) {
parentLayout.getViewTreeObserver().addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
Rect r = new Rect();
parentLayout.getWindowVisibleDisplayFrame(r);
int screenHeight = parentLayout.getRootView()
.getHeight();
int heightDifference = screenHeight - (r.bottom);
if (previousHeightDiffrence - heightDifference > 50) {
popupWindow.dismiss();
}
previousHeightDiffrence = heightDifference;
if (heightDifference > 100) {
isKeyBoardVisible = true;
changeKeyboardHeight(heightDifference);
} else {
isKeyBoardVisible = false;
}
}
});
}
Using all these stuff i am able to make a perfect overlapping keyboard….
then i inflate popup window with viewpager and gridview for emoticons.
Also, i use spannable string for showing these emoticons in listview and chat window