ios UIButton 选择颜色
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UIButton selection color
提问by Abhinav
I am drawing custom a UIButton and want to set the blue color when it is highlighted. How can I achieve this?
我正在绘制自定义 UIButton 并希望在突出显示时设置蓝色。我怎样才能做到这一点？
UIButton *myButton = [UIButton buttonWithType:UIButtonTypeCustom];
[myButton setBackgroundImage:[[UIImage imageNamed:@"test.png"] stretchableImageWithLeftCapWidth:100 topCapHeight:0] forState:UIControlStateNormal];
采纳答案by Sola
You can try to use another image to do the job. You can also refer to this link:
您可以尝试使用另一个图像来完成这项工作。你也可以参考这个链接：
回答by MobileSoul
You can do following to set images for your state (normal/highlight/selected). You have to have images.
您可以执行以下操作来为您的状态（正常/突出显示/选定）设置图像。你必须有图像。
[downButton setImage:[UIImage imageNamed:@"white.png"] forState:UIControlStateNormal];
[downButton setImage:[UIImage imageNamed:@"blue.png"] forState:UIControlStateHighlighted];
回答by Chris Allinson
Ya, you can create a 1px by 1px "blue colored" image and use the following:
是的，您可以创建一个 1px x 1px 的“蓝色”图像并使用以下内容：
[yourButton setBackgroundImage:[UIImage imageNamed:@"theImageYouMade.png"] forState:UIControlStateHighlighted];
You can't use "setImage:" in my method because the highlighted state of the button will actually just display the 1px by 1px image in the center of the button.
您不能在我的方法中使用“setImage:”，因为按钮的突出显示状态实际上只会在按钮中心显示 1px x 1px 的图像。
My method works for variable sized buttons. Using setImage: requires you to make images that are exactly the same size as your button.
我的方法适用于可变大小的按钮。使用 setImage: 要求您制作与按钮大小完全相同的图像。
-Chris
-克里斯
回答by Hot Licks
Maybe set a different background image for a different state?
也许为不同的状态设置不同的背景图像？
回答by matt
Provide a background image for UIControlStateHighlighted. Also it might help to turn off adjustsImageWhenHighlighted, though this should not matter if you're providing a separate background image for the highlighted state.
为 提供背景图像UIControlStateHighlighted。此外，关闭 可能会有所帮助adjustsImageWhenHighlighted，但如果您为突出显示的状态提供单独的背景图像，这应该无关紧要。
