I've got the following tabbed interface
Each tab is a scrollable list of items that can be marked as checked or not.
You can click on the blue button on the top right to add a new item to the current tab.
If you switch to a different tab, the button label and where the new item will be added will change accordingly.
Now, I've got this new requirement to implement a check/uncheck all items for the current tab. Functionally, it's simple enough, but I'm at a lost as to where to place this functionality.
Note:
- Inside the tab, it can only be a list of items. Can't have a menu bar at the very top of the list.
- There is a lot more room between the tab labels and the button than what my crummy mock shows. Enough to fit say two more buttons.