问题
I'm trying to customize my button by changing their colors, but when I use either:
self.loginButton.layer.backgroundColor = [UIColor colorWithRed:0.0 green:157.0/255.0 blue:223.0/255.0 alpha:1.0].CGColor;
or
self.loginButton.backgroundColor = [UIColor colorWithRed:0.0 green:157.0/255.0 blue:223.0/255.0 alpha:1.0];
All I get is this result:
What I want to do is change the white color to blue, any idea what I'm doing wrong?
回答1:
You're using a round rect button which is pretty ugly, and pretty hard to customise.
You can create a custom type button and use a background image, or create a custom type button and round the corners and set the background colour of the layer yourself.
If you want to get really fancy there is a nice tutorial here which can give you any-sized gradient type buttons using layers, no image files required.
回答2:
What's that button type? If you want to customise button, you gotta create a button with [UIButton buttonWithType:UIButtonTypeCustom]
回答3:
I discovered this almost by accident:
self.loginButton.tintColor = [UIColor redColor];
Definitely works and has been available since iOS 2.0.
来源：https://stackoverflow.com/questions/9979057/ios-setting-uibutton-background-color-only-colors-the-corners