首先，我想说的是，在中找不到任何好的答案Swift。我创造了search bar。在按钮上单击会显示，在取消上会隐藏searchbar。它工作正常，取消按钮是可见的所有iPhones，但由于某种原因不能上iPad。是什么原因造成的？
这就是我创建的方式searchbar：
//Create searchbar
func createSearchBar(){
searchBar.showsCancelButton = true
searchBar.tintColor = UIColor(red:0.184, green:0.996, blue:0.855, alpha:1.00)
searchBar.placeholder = "Search brands"
searchBar.delegate = self
searchBar.hidden = false
searchBar.alpha = 0
navigationItem.titleView = searchBar
navigationItem.setLeftBarButtonItem(menuButton, animated: true)
navigationItem.setRightBarButtonItem(searchButtton, animated: true)
UIView.animateWithDuration(0.5, animations: {
self.searchBar.alpha = 1
}, completion: { finished in
self.searchBar.becomeFirstResponder()
})
}
面对我的同一项目。我已经在Apple论坛上发布了文章，很多开发人员都将其评论为xcode错误。所以我为iPad视图手动添加了取消按钮
func configureCancelBarButton() {
let cancelButton = UIBarButtonItem()
cancelButton.image = UIImage(named: "cancelButton")
cancelButton.action = #selector(viewController.ipadCancelButton(_:))
cancelButton.target = self
self.navigationItem.setRightBarButtonItem(cancelButton, animated: true)
}
我之前曾发布过有关此问题的答案。也检查一下。:)
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我来说两句