When iOS transfers focus from one view to another, it
asks the new view for its UIKeyInput properties before
deciding how the keyboard should be configured.
For Qt, the same QUIView is used for the whole QWindow
which means that UIKit will not change the keyboard
configuration just because we change the focus object
in Qt, since the UIView does not change.
There seems to be no way to tell UIKit that the
keyboard needs to change becuse the UIKeyInput
properties has changed. To work around this, we
briefly resign first responder status, and grabs it
again, for the same QUIView.
Change-Id: I2d15cc0c928deb023e7da58ad4669b7099dce2cf
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
484d6ce776