I find the swipe-right action for accessing the TOC to be a major burden. I activate it all the time when intending just to scroll. The potential for user confusion is even greater since the menu drawer is *also* activated by swiping to the right, but only if you start from the left edge. It's also really frustrating that you cannot *push* the TOC back toward the left, you have to grab the edge of the article and pull it back.
The resulting physical metaphor is that the fundamental immovable layer is the TOC, and above that is a movable article that you can push to the right, and above that is menu drawer than you can pull over from the left. Confusing, especially since the article should be the fundamental thing.
The solution I propose is to make *both* the TOC and the menu into drawer, and have the TOC be the right-hand drawer while the menu is the left-hand drawer (as now), and the article is the immovable bottom layer.
For an app that does things like this, see Quasseldroid, which I think works out quite nicely.
I also suggest that the drawers have a larger region that can be grabbed, which is a feature that Quasseldroid has. For users with cases that extend above the plane of the screen, it can be difficult to actually initiative a swipe from the edge. Here's how Quasseldroid implemented that: https://github.com/sandsmark/QuasselDroid/commit/cd7a842fe4da8f1f2bcebc6521c26e6a3e057274
Version: Android (alpha)
Severity: normal