AlertDialogLayout
Special implementation of linear layout that's capable of laying out alert dialog components.
A dialog consists of up to three panels. All panels are optional, and a dialog may contain only a single panel. The panels are laid out according to the following guidelines:
- topPanel: exactly wrap_content
- contentPanel OR customPanel: at most fill_parent, first priority for extra space
- buttonPanel: at least minHeight, at most wrap_content, second priority for extra space