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I have an UIImageView with an UIImage. I want to assign a copy of these picture to two variables. Based on what the user is doing the image should be manipulated. The problem is, the image is the same in each variables. I guess, because they are passed by reference.
let image1 = imageView.image!
let image2 = imageView.image!
How do I get two separate copies of this image?
What I want to achieve: Just crop the one image, keep the other like the original.
let imageLeft = googleImageView.image!
let imageRef = CGImageCreateCopy(googleImageView.image!.CGImage)
let imageRight = UIImage(CGImage: imageRef!, scale: googleImageView.image!.scale, orientation: googleImageView.image!.imageOrientation)
if translation.x < 0 {
let scale = imageLeft.scale
let newRect = CGRectMake(0, 0, (imageLeft.size.width + translation.x) * scale, imageLeft.size.height * scale)
let imageRef = CGImageCreateWithImageInRect(imageLeft.CGImage, newRect)
if let croppedImage = imageRef {
googleImageView.image = UIImage(CGImage: croppedImage, scale: scale, orientation: imageLeft.imageOrientation)
}
}
print("left image: \(imageLeft) right image \(imageRight)")
The code above prints to the console:
left image: <UIImage: 0x7fd020dca070>, {111, 167}
right image <UIImage: 0x7fd020dda430>, {111, 167}
left image: <UIImage: 0x7fd020df9ba0>, {110, 167}
right image <UIImage: 0x7fd020d45670>, {110, 167}
... and so on. So, BOTH images gets a new size. Only the left Image should get cropped.
284
UIImage contains the data for an image. UIImageView is a custom view meant to display the UIImage . Save this answer.
if you already have the image i.e. have added the file to your resources, you can use this to get the file path; NSString *string = [[NSBundle mainBundle] pathForResource:@"IMAGE_FILE_NAME" ofType:@"jpg"]; // or ofType:@"png", etc. Save this answer.
For example: UIImage *img = [[UIImage alloc] init]; [img setImage:[UIImage imageNamed:@"anyImageName"]]; My UIImage object is declared in . h file and allocated in init method, I need to set image in viewDidLoad method.
With Interface Builder it's pretty easy to add and configure a UIImageView. The first step is to drag the UIImageView onto your view. Then open the UIImageView properties pane and select the image asset (assuming you have some images in your project).
As @Aggressor suggested you can copy your image from imageView this way:
let newCgIm = CGImageCreateCopy(imageView.image?.CGImage)
let newImage = UIImage(CGImage: newCgIm, scale: imageView.image!.scale, orientation: imageView.image!.imageOrientation)
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