If you're looking for an Android text editor, you need look no further than Turbo Editor. The open-source app, which has been updated with material design, has dedicated interfaces for smartphones and tablets and supports most text files you can think of. For developers, there's syntax highlighting for most coding languages out there, as well as line numbers.
There are Undo and Redo buttons prevent mishaps, and automatic encoding detection means you won't end up with a bunch of alien symbols in place of your text. You've also got auto-save and read only modes, file and folder management from inside the app, a markdown viewer, and you can move the app to an SD card if you so desire.
Turbo Editor is powerful, looks great, and it's free. Grab it from the Play
|Developer: Maskyn||Download: Android|
|Category: Text editor||Price: Free|
Turbo Editor images