An input on the Adobe Acrobat Android viewer app:
I am a student, and read PDF books and want to make notes on the margins and highlight parts of my online textbook.
My work will be done much faster if I don't have to reselect the annotation tools after each use. Is there a way you can develop where I can long-click the highlight tool or the pencil tool and it stays on that setting until I click it again? I'll use my highlighter as a highlighter pen, making all sorts of marks on my page before moving to the next page. Right now, I have to Select highlighted tool. Highlight. Select highlighter tool. Highlight. Select highlighter tool. Highlight.
The only downside would be that I will not be able to swipe to change pages because it will highlight the tracks of my swipe attempt. This could be fixed by having "next page" arrows or having a stylus-only annotation option (so my finger doesn't do anything other than swipe pages).
I'm using a Samsung Notebook Pro tablet.
It's sometimes called keeping the tools "sticky".. don't ask me why.
Select the tool you want to use (but don't use it yet). Click Control+E, or right click up on the tool bar, & select "Show Properties Bar" there should be a box that pops up with a check box, select "Keep Tool Selected."