When I use iOS 10 some button label\'s text become \"...\". I found the same string (e.x:我是人) in iOS9 uses 48 width. In iOS10 it uses 48.96 width. How to fix?
You have to use "adjustsFontSizeToFitWidth" property of titleLabel of your button
Example:
myButton.titleLabel.adjustsFontSizeToFitWidth = YES;
This line will automatically adjust font size for the text of myButton based on the width of the button.
Use this link: adjust UIButton font size to width
Another solution is to increase the width of the button, by adjusting constraints.