I try to get the TableView of two_dimensional_scrollables working correctly on a page with an flexible app bar (expanding/collapsing on scroll).
Both is working independently fine but the combination gives me some headache.

Has anyone managed to combine these two concerns already? Free diagonal scrolling of the table view but as well a collapsing/expanding app bar like it does when there is a simple list.
Currently when I start scrolling horizontally all works fine and I can move around in the TableView however I like and app bar is expanding/collapsing.
When I start scrolling vertically, the gesture is caught by the app bar and I am limited to scroll only vertically the TableView and app bar but can not scroll horizontally.

Any help is highly appreciated. Thank you.