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我试图在图像上显示一个弹出窗口,我试图将锚点指向我的图像边框(图像是信息图标)。 这里是我的代码:Swift Popover Anchor
中的按钮操作:
@IBAction func infoTapped(_ sender: AnyObject) {
self.performSegue(withIdentifier: "InfoPopOver", sender: nil)
}
而对于赛格瑞的准备:
extension AddExpenseViewController: UIPopoverPresentationControllerDelegate {
func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
return UIModalPresentationStyle.none
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "InfoPopOver" {
if let vctr = segue.destination as? MyPopOverViewController {
vctr.modalPresentationStyle = .popover
vctr.popoverPresentationController?.delegate = self
vctr.popoverPresentationController?.sourceView = self.view
vctr.popoverPresentationController?.sourceRect = infoIcon.frame
}
}
}
}
class MyPopOverViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
self.preferredContentSize = CGSize(width: 185, height: 80)
}
}
以下几个截图: Main View Popover shown
我是手动设置的坐标,但它并不适合每一个都不屏幕类型...
尝试将'sourceView'设置为'infoIcon'? – Sweeper