如何更改Uisearchbar中取消按钮的颜色



当我在自定义类取消按钮上设置barTintColor属性时,将变得不可见!它在那里,但看不到。我的最低兼容性是iOS 8.0,因此我无法使用appearance(whenContainedInInstancesOf: <#T##[UIAppearanceContainer.Type]#>),并且我也尝试过循环浏览子视图和设置tintColor,但这也不起作用。我无法使用UIBarButtonItem.appearance().tintColor,因为我的场景中有一个工具栏,这也会更改其他按钮的tintcolor。

颜色代码为:

static let purpleColor =  UIColor(red: CGFloat(70.0/255.0), green: CGFloat(54.0/255.0), blue: CGFloat(224.0/255.0), alpha: CGFloat(1.0))
static let scrollBackgroundColor = UIColor(red: CGFloat(240.0/255.0), green: CGFloat(241.0/255.0), blue: CGFloat(242.0/255.0), alpha: CGFloat(1.0))

我的自定义类就像:

import UIKit
class SPSearchBar: UISearchBar {
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        commonInit()
    }
    override init(frame: CGRect) {
        super.init(frame: frame)
        commonInit()
    }
    func commonInit() {
        tintColor = Config.purpleColor
        barTintColor = Config.scrollBackgroundColor
        let cancelButton = value(forKey: "cancelButton") as! UIButton
        cancelButton.setTitle(NSLocalizedString("Cancel", comment: ""), for: .normal)
        cancelButton.setTitleColor(Config.purpleColor, for: .normal)
        cancelButton.tintColor = Config.purpleColor
    }
}

查看是否对您有帮助:

let cancelButtonAttributes: NSDictionary = [NSForegroundColorAttributeName: UIColor .red]
 UIBarButtonItem.appearance().setTitleTextAttributes(cancelButtonAttributes as? [String : AnyObject], for: UIControlState.normal)

在您中添加这些行 viewDidload 方法。

尝试以下:

let cancelButtonSearchButton = searchBar.value(forKeyPath: "cancelButton") as? UIButton
    cancelButtonSearchButton?.tintColor = UIColor.blue

这进入了您已经设置Uisearchbar的插座的ViewController

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