Question

我想在一个viewcontroller上显示两个图像，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，它将它们放在两个UIImageViews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")
            }
        }

到此为止我可以选择一个图像并将其保存到Parse成功，但是当我尝试为其他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UIImageViews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]) {
}

但在同一个快速文件中，这显然是不可能的。

关于如何实现这一目标的任何想法？

提前谢谢！

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)
    }

以下是我在ViewDidLoad中从Parse获取它们的方法：

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

这不是完整的，但会有你需要的关键部分

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

然后当你去获得封面图片

imageType = 1

然后在imagePickerController

中

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

Answer 2

可以在单击相机按钮时在此处使用字符串“ CameraFor”。在配置文件相机按钮上设置字符串，然后单击“ ImageForProfile” 在Cover camera按钮上设置字符串，然后单击“ ImageForCoverPhoto”。

类ResponsePhotoController：UIViewController，UIImagePickerControllerDelegate { imageType：Int = 0 //使用它来查找图像类型公共类变量

if CameraFor == "ImageForProfile" {
   //set image here for profile

 } 
else {
   //set image here for ImageForCoverPhoto 
     }

}

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

2 个答案: