Swift – 如何在自定义类中设置UIBarButtonItem的图像
发布时间:2020-12-14 04:28:05 所属栏目:百科 来源:网络整理
导读:嗨,我有一个UIBarButton Image的自定义类: class CheckBoxBarButton : UIBarButtonItem { // images let checkedImage = UIImage(named: "img_checked")! as UIImage let unCheckedImage = UIImage(named: "img_unchecked")! as UIImage //bool property va
嗨,我有一个UIBarButton
Image的自定义类:
class CheckBoxBarButton : UIBarButtonItem { // images let checkedImage = UIImage(named: "img_checked")! as UIImage let unCheckedImage = UIImage(named: "img_unchecked")! as UIImage //bool property var isChecked: Bool = false { didSet{ if isChecked == true { // here I want to set the checked image for my bar button }else{ // here I want to set the unchecked image for my bar button } } } override func awakeFromNib() { // here I want to add a target when the button is touched. // the actual code is returning an error because UIBarButtonImage doesnt not have addtarget self.addTarget(self,action: #selector(CheckBoxBarButton.buttonClicked(_:)),forControlEvents: UIControlEvents.TouchUpInside) self.isChecked = false } }
解决方法
您可以使用图像创建一个按钮,并将UIBarButtonItem的customView设置为您的按钮:
let button = UIButton() button.setImage(checkedImage )// or button.setImage(unCheckedImage) based on the conditions button.frame = CGRectMake(0,30,30) self.customView = button 或者,如果已经定义了按钮,则设置customView图像: self.customView.setImage(checkedImage ) (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |