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System message box does not hide appbar in landscape. It just makes it empty.
Try it and you will notice that there is a bar at the place of appbar with the same size and color.
It is better to show there empty appbar because UI under the overlay won't jump in that case!
Try it and you will notice that there is a bar at the place of appbar with the same size and color.
It is better to show there empty appbar because UI under the overlay won't jump in that case!