[android-developers] Show Popup in MapLocationOverlay.onTap

Im trying to display a popup in a MapView. I m doing this in
myLocationOverlay.onTap() method. I got the initial popup to display
correctly. I have a button in the popup to expand the popup by making
some hidden view visible and changing the height of the popup like
this:

mapPopup.switchModeBtn.setOnClickListener(new
View.OnClickListener()
{

public void onClick (View v) {
if(mapPopup.isInCompactMode) { // then switch to expanded
mode...

mapPopup.firstRowSwitchModeBtn.setImageResource(R.drawable.cq_down_arrow_btnx);
mapPopup.secondRowTextView.setVisibility(View.VISIBLE);
MapView.LayoutParams params = new
MapView.LayoutParams(MapPopup.Width, 350, popupWindowPosition,
MapView.LayoutParams.BOTTOM_CENTER);
mapPopup.container.setLayoutParams(params);
}
else {

mapPopup.firstRowSwitchModeBtn.setImageResource(R.drawable.cq_right_arrow_btnx);
mapPopup.secondRowTextView.setVisibility(View.GONE);
MapView.LayoutParams params = new
MapView.LayoutParams(MapPopup.Width, 70, popupWindowPosition,
MapView.LayoutParams.BOTTOM_CENTER);
mapPopup.container.setLayoutParams(params);
}

mapPopup.container.invalidate();
}
});

but the height of the popup doesn't seems to change. Am I missing
something here?

I would really appreciate your help!

Thanks

Santoash

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