自定义非矩形按钮三角形状

Question

I want to use triangle type buttons on image but i am unable to do this...

How to do this?

Answer 1

This project can help you. you can customize the shape of the UIButton .

Answer 2

All UIViews - all of them - are rectangles. You cannot make a UIView that is a triangle, but you can make one that contains and presents a triangular shape and responds only to touches within that shape. You must understand of course that underneath it all, it's a rectangle, and you'll have to handle the case wherein the user touches outside of the triangle but inside of the rectangle, probably by passing such events through to views below. Indeed, you might have to handle all touch event combinations (touch down inside, touch up outside, touch move outside, etc) in this way.

Maybe the project referenced above will handle all this, I didn't look too deeply.