1. 设置背景颜色
let searchBar = UISearchBar.init()
searchBar.barTintColor = UIColor.white
2. 去除上下黑线
let bgView = UIView.init(frame: searchBar.bounds)
bgView.backgroundColor = UIColor.white
searchBar.insertSubview(bgView, at: 1)
3. 设置背景颜色的同时去掉上下黑线
对UISearchBar进行扩展
var wh_backgroundColor: UIColor? {
get { return self.barTintColor }
set {
self.barTintColor = newValue
let bgView = UIView.init(frame: self.bounds)
bgView.backgroundColor = newValue
self.insertSubview(bgView, at: 1)
}
}
使用时直接给UISearchBar的wh_backgroundColor属性赋值需要设置的颜色即可
4. 设置搜索框的背景颜色
UISearchBar的输入框是私有的,所以需要自己去获取,在此对UISearchBar进行扩展,这种方式尽量在对UISearchBar的所有设置完成之后再调用,否则可能会出现nil,那么就会设置失败
- 获取searchBar中编辑框的视图
var wh_searchBarTextField: UITextField? {
let sub = self.subviews.first?.subviews ?? []
for view in sub {
if let textField = view as? UITextField {
return textField
}
}
return nil
}
- 给输入框进行背景颜色设置
searchBar.wh_searchBarTextField?.backgroundColor = UIColor.white
- 获取到了输入框,还可以对其进行其余的设置
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