Shows or hides the close button. Applications that already have a "search" toggle button should not show a close button in their search bar, as it duplicates the role of the toggle button.
whether the close button will be shown or not Since 3.10
See Implementation
Shows or hides the close button. Applications that already have a "search" toggle button should not show a close button in their search bar, as it duplicates the role of the toggle button.