Adding Previous Button [Tutorial]


#1

I made a tutorial with code to make the previous button in case anyone is facing some problem with it.
It is quite easy and I have also uploaded the codes for the button in the description.

Watch Youtube Video & Download Code Files Here


#2

Hi, your solution helped me a lot to run and create the previous button but Iā€™m still tricked how this works, could you explain this code?
ā€“> mCurrentIndex = (mCurrentIndex + mQuestionBank.length-1) % mQuestionBank.length; <ā€“