ios - Swift - 在 1 个 ViewController 中的 2 个 UIImageView 中显示两个单独的图像

Question

我想在一个 View Controller 上显示两张图片，从相机胶卷中选择它们，

我已经设法进入相机胶卷以便能够选择它们，但是当我选择一个图像时它会将它们放在两个 UIImageView 中。

我希望能够在 UIImageView 中显示两个不同的图像。

 func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
        //handle media here i.e. do stuff with photo

        print("imagePickerController called")


        if let chosenImage = info[UIImagePickerControllerEditedImage] {
        profileImage.image = chosenImage as? UIImage

        let user: PFUser = PFUser.currentUser()!
        let profileImageData = UIImageJPEGRepresentation(profileImage.image!, 1)
        if (profileImageData != nil)
        {
            let profileFileObject = PFFile(data: profileImageData!)
            user.setObject(profileFileObject!, forKey: "profilePicture")
            }
        }

到这里我可以选择一个图像并将其成功保存到 Parse，但是当我尝试为另一个 UIImageView 添加其他代码时，如下所示:

            if let chosenCoverImage = info[UIImagePickerControllerEditedImage] {
            coverImage.image = chosenCoverImage as? UIImage

            let coverUser: PFUser = PFUser.currentUser()!
            let coverImageData = UIImageJPEGRepresentation(coverImage.image!, 1)
            if (coverImageData != nil)
            {
                let coverFileObject = PFFile(data: coverImageData!)
                coverUser.setObject(coverFileObject!, forKey: "coverPicture")
                }}
            }

代码的第二部分似乎不起作用，基本上它在两个 UIImageView 中显示相同的图像，我认为我需要的是第二部分

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
}

但显然在同一个 swift 文件中这是不可能的。

关于如何实现这一点有什么想法吗？

提前致谢!

这是我的完整 imagePickerConytoller 代码:

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
        //handle media here i.e. do stuff with photo

        print("imagePickerController called")


        let chosenImage = info[UIImagePickerControllerEditedImage] as? UIImage
        profileImage.image = chosenImage

        let user: PFUser = PFUser.currentUser()!
        let profileImageData = UIImageJPEGRepresentation(profileImage.image!, 1)
        if (profileImageData != nil)
        {
            let profileFileObject = PFFile(data: profileImageData!)
            user.setObject(profileFileObject!, forKey: "profilePicture")
            }

        let chosenCoverImage = info[UIImagePickerControllerEditedImage] as? UIImage
        coverImage.image = chosenCoverImage

        let coverUser: PFUser = PFUser.currentUser()!
        let coverImageData = UIImageJPEGRepresentation(coverImage.image!, 1)
        if (coverImageData != nil)
        {
            let coverFileObject = PFFile(data: coverImageData!)
            coverUser.setObject(coverFileObject!, forKey: "coverPicture")
            }

        activityIndicator = UIActivityIndicatorView(frame: CGRectMake(0, 0, 50, 50))
        activityIndicator.center = self.profileImage.center
        activityIndicator.hidesWhenStopped = true
        activityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.White
        view.addSubview(activityIndicator)
        activityIndicator.startAnimating()
        activityIndicator.color = UIColor.grayColor()

        user.saveInBackgroundWithBlock { (success:Bool, error:NSError?) -> Void in
            self.activityIndicator.stopAnimating()
                    }


        dismissViewControllerAnimated(true, completion: nil)
    }

下面是我如何在我的 ViewDidLoad 中从 Parse 获取它们:

if (PFUser.currentUser()?.objectForKey("profilePicture") != nil)
        {
            let userImageFile:PFFile = PFUser.currentUser()?.objectForKey("profilePicture") as! PFFile
            userImageFile.getDataInBackgroundWithBlock({ (imageData: NSData?, error: NSError?) -> Void in
                self.profileImage.image = UIImage(data: imageData!)
            })
        }

        if (PFUser.currentUser()?.objectForKey("coverPicture") != nil)
        {
            let userCoverFile:PFFile = PFUser.currentUser()?.objectForKey("coverPicture") as! PFFile
            userCoverFile.getDataInBackgroundWithBlock({ (imageData: NSData?, error: NSError?) -> Void in
                self.coverImage.image = UIImage(data: imageData!)
            })
        }

Answer 1

这不会是完整的，但会有您需要的关键部分

class ResponsePhotoController: UIViewController, UIImagePickerControllerDelegate
{
    var imageType : Int = 0  // use this to track the image type
                             // 0 for profile
                             // 1 for cover

在您的代码中获取个人资料图片

imageType = 0

然后当你去拿封面图片的时候

imageType = 1

然后在imagePickerController中

if imageType == 0
{
    // set up the profile picture
}
else
{
    // set up the cover image
}