图像选择器控制器 UIBarButtonItem 而不是 UIButton 的问题

Question

我想将 uiimagepickercontroller 添加到 VC 但我随后将按钮更改为栏按钮将 UIButton 的 btnClickMe 更改为 UIBarButtonItem 后出现错误我不明白错误似乎是什么问题？

value type UIBarButtonItem has no member 'Frame'

我删除了框架，但没有用

class ViewController: UIViewController,UIAlertViewDelegate,UIImagePickerControllerDelegate,UINavigationControllerDelegate,UIPopoverControllerDelegate
{
    @IBOutlet weak var btnClickMe: UIButton!
    @IBOutlet weak var imageView: UIImageView!
    var picker:UIImagePickerController?=UIImagePickerController()
    var popover:UIPopoverController?=nil

    override func viewDidLoad()
    {
        super.viewDidLoad()
        picker!.delegate=self
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    @IBAction func btnImagePickerClicked(sender: AnyObject)
    {
        let alert:UIAlertController=UIAlertController(title: "Choose Image", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)

        let cameraAction = UIAlertAction(title: "Camera", style: UIAlertActionStyle.Default)
        {
            UIAlertAction in
            self.openCamera()

        }
        let gallaryAction = UIAlertAction(title: "Gallary", style: UIAlertActionStyle.Default)
        {
            UIAlertAction in
            self.openGallary()
        }
        let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel)
        {
            UIAlertAction in

        }

        // Add the actions
        picker?.delegate = self
        alert.addAction(cameraAction)
        alert.addAction(gallaryAction)
        alert.addAction(cancelAction)
        // Present the controller
        if UIDevice.currentDevice().userInterfaceIdiom == .Phone
        {
            self.presentViewController(alert, animated: true, completion: nil)
        }
        else
        {
            popover=UIPopoverController(contentViewController: alert)
            popover!.presentPopoverFromRect(btnClickMe.frame, inView: self.view, permittedArrowDirections: UIPopoverArrowDirection.Any, animated: true)
        }
    }
    func openCamera()
    {
        if(UIImagePickerController .isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera))
        {
            picker!.sourceType = UIImagePickerControllerSourceType.Camera
            self .presentViewController(picker!, animated: true, completion: nil)
        }
        else
        {
            openGallary()
        }
    }
    func openGallary()
    {
        picker!.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
        if UIDevice.currentDevice().userInterfaceIdiom == .Phone
        {
            self.presentViewController(picker!, animated: true, completion: nil)
        }
        else
        {
            popover=UIPopoverController(contentViewController: picker!)
            popover!.presentPopoverFromRect(btnClickMe.frame, inView: self.view, permittedArrowDirections: UIPopoverArrowDirection.Any, animated: true)
        }
    }
    func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject])
    {
        picker .dismissViewControllerAnimated(true, completion: nil)
        imageView.image=info[UIImagePickerControllerOriginalImage] as? UIImage
    }
    func imagePickerControllerDidCancel(picker: UIImagePickerController)
    {
        print("picker cancel.")
    }


}

Answer 1

UIPopoverController 已在 iOS9 中弃用。Xcode 可能会显示此警告：

'UIPopoverController' was deprecated in iOS 9.0: UIPopoverController is deprecated. Popovers are now implementd as UIViewController presentations. Use a modal presentation style of UIModalPresentationPopover and UIPopoverPresentationController.

但是，如果您仍然想使用它，则需要使用 presentPopoverFromBarButtonItem 方法而不是 presentPopoverFromRect，因为 UIBarButtonItems 没有 frame 属性.

图像选择器控制器 UIBarButtonItem 而不是 UIButton 的问题

Issue with ImagePicker Controller UIBarButtonItem instad of UIButton

uibutton

uiimagepickercontroller

uibarbuttonitem

ios

swift