On a physical qwerty keyboard, I use the shift + minus key to input a over line symbol as part of my password. How do I do this on the Android touchscreen keyboard?
Double tap the Uppercase key to hold it on, Then try the minus key.... Might not work, but the Uppercase key is supposed to be a Shift replacement in the stock keyboard.
Click the 123Sym key (to change from letters to numbers) then click the 1/2 key (on top of 123Sym key) and Space key same time. You will see appear another set of symbols. Been crazy myself trying to find it out and after trying one thing and another...GOT IT. Enjoy