UIAlertView问题

我开始有这个问题，因为我更新到Xcode 8我不知道它是否可以依赖于一个Xcode错误。UIAlertView问题

我有这个问题：this happens when I add this view to a tab bar。

它应该是这样的if you do not tie it to anything it remains unchanged。

的问题，是不是我的代码我下面添加

import UIKit

类PhotoSelectViewController：UIViewController中，UINavigationControllerDelegate，UIImagePickerControllerDelegate {

@IBOutlet weak var imageView: UIImageView! 
@IBOutlet weak var selectImageButton: UIButton! 

weak var delegate: PhotoSelectViewControllerDelegate? 

override func viewDidLoad() { 
    super.viewDidLoad() 
} 

@IBAction func selectImageTapped(_ sender: AnyObject) { 
    let imagePicker = UIImagePickerController() 
    imagePicker.delegate = self 

    let actionSheet = UIAlertController(title: "Choose image source", message: nil, preferredStyle: .actionSheet) 

    let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil) 

    let photoLibraryAction = UIAlertAction(title: "Photo Library", style: .default) { (_) in 
     imagePicker.sourceType = .photoLibrary 
     self.present(imagePicker, animated: true, completion: nil) 
    } 
    let cameraAction = UIAlertAction(title: "Camera", style: .default) { (_) in 
     imagePicker.sourceType = .camera 
     self.present(imagePicker, animated: true, completion: nil) 
    } 

    actionSheet.addAction(cancelAction) 

    if UIImagePickerController.isSourceTypeAvailable(.photoLibrary) { 
     actionSheet.addAction(photoLibraryAction) 
    } 
    if UIImagePickerController.isSourceTypeAvailable(.camera) { 
     actionSheet.addAction(cameraAction) 
    } 

    self.present(actionSheet, animated: true, completion: nil) 

    selectImageButton.setTitle("", for: .normal) 

} 

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) { 
    if let image = info[UIImagePickerControllerOriginalImage] as? UIImage { 
     imageView.image = image 
     delegate?.photoSelectViewControllerSelectedImage(image: image) 
    } 
    dismiss(animated: true, completion: nil) 
}

}

协议PhotoSelectViewControllerDelegate：类{ FUNC photoSelectViewControllerSelectedImage （图片：用户界面图片） }

来源

2016-11-23 bob

尝试给它一个默认的宽度 –

能否请你告诉你如何添加警报？ – GoodSp33d

UIAlertView中在iOS的8

弃用现在，您需要使用UIAlertController：

let alertController = UIAlertController(title: "Choose image source", message: "", preferredStyle: .actionSheet) 

    let cancelAction = UIAlertAction(title: "Cancel", style: .cancel) { result in 
     print("Destructive") 
    } 

    // Replace UIAlertActionStyle.Default by UIAlertActionStyle.default 
    let photoLibraryAction = UIAlertAction(title: "Photo Library", style: .default) { result in 
     print("OK") 
    } 

    alertController.addAction(cancelAction) 
    alertController.addAction(photoLibraryAction) 
    self.present(alertController, animated: true)

来源

2016-11-23 10:50:27 Hasya

它在iOS 8中已弃用。 – Sahil

已上传。你可以使用尾随闭包和类型推断来稍微好一些。如果你不介意，我更新了你的答案。 – crashoverride777

你的房产也应该以小写字母开头 – crashoverride777

UIAlertView中已被弃用。使用UIAlertController与UIAlertControllerStyleAlert代替的preferredStyle在iOS 8，你可以做波纹管

let alert = UIAlertController(title: "Alert", message: "Message", preferredStyle: UIAlertControllerStyle.alert) 
alert.addAction(UIAlertAction(title: "Click", style: UIAlertActionStyle.default, handler: nil)) 
self.present(alert, animated: true, completion: nil)

来源

2016-11-23 11:08:56 danu

UIAlertView问题

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