我正在尝试在 TabBarController 中设置 TabBar 上单个项目的图标颜色和背景颜色。
我的 TabBar 上有 5 个图标,其中 4 个我已经设置了颜色,这只是我正在努力解决的最后一个图标。我在图像下面附加了一个链接,以显示我想要实现的目标。
具体的图标是(图像中间的那个)用于我的相机输入,我希望该图标为白色,背景为红色。
到目前为止我的代码是这样的 -
在我的 TabBarController 上:
var imageNames = ["FeedIcon", "ExploreIcon", "CameraIcon", "ActivityIcon", "MyProfileIcon"]
let tabItems = tabBar.items as! [UITabBarItem]
for (index, value) in enumerate(tabItems)
{
var imageName = imageNames[index]
value.image = UIImage(named: imageName)
value.imageInsets = UIEdgeInsetsMake(5.0, 0, -5.0, 0)
}
//for below i've used a extension for imageWithColor to set the color of my icons
for tabItems in self.tabBar.items as! [UITabBarItem] {
if let image = tabItems.image {
tabItems.image = image.imageWithColor(UIColor(red: 57.0/255.0, green: 57.0/255.0, blue: 57.0/255.0, alpha: 1.0)).imageWithRenderingMode(.AlwaysOriginal)
}
}
我的扩展:
extension UIImage {
func imageWithColor(tintColor: UIColor) -> UIImage {
UIGraphicsBeginImageContextWithOptions(self.size, false, self.scale)
let context = UIGraphicsGetCurrentContext() as CGContextRef
CGContextTranslateCTM(context, 0, self.size.height)
CGContextScaleCTM(context, 1.0, -1.0);
CGContextSetBlendMode(context, kCGBlendModeNormal)
let rect = CGRectMake(0, 0, self.size.width, self.size.height) as CGRect
CGContextClipToMask(context, rect, self.CGImage)
tintColor.setFill()
CGContextFillRect(context, rect)
let newImage = UIGraphicsGetImageFromCurrentImageContext() as UIImage
UIGraphicsEndImageContext()
return newImage
}
}