public void testAddOnComputeInternalInsetsListener() {
final ListView lv1 = (ListView) mActivity.findViewById(R.id.listview1);
mViewTreeObserver = lv1.getViewTreeObserver();
MockOnComputeInternalInsetsListener listener = new MockOnComputeInternalInsetsListener();
mViewTreeObserver.addOnComputeInternalInsetsListener(listener);
}
/**
* Make the touchable area of this popup be the area specified by mTouchableRegion. This should
* be called after the popup window has been dismissed (dismiss/hide) and is probably being
* re-shown with a new content root view.
*/
private void setTouchableSurfaceInsetsComputer() {
ViewTreeObserver viewTreeObserver =
mPopupWindow.getContentView().getRootView().getViewTreeObserver();
viewTreeObserver.removeOnComputeInternalInsetsListener(mInsetsComputer);
viewTreeObserver.addOnComputeInternalInsetsListener(mInsetsComputer);
}