iOS - Image Orientation before upload on server in Swift 3.0?
You take a photo from your app then its display in photo view as portrait. but whenever you upload this photo on server that isn't have original orientation of photo which you show. So the image from the server get 90 degree rotate of original portrait image.
So that, You have to properly rotate before the upload original image on the server.
Here create function for orientation of image in swift 3.0.
How To Use :
Before upload image on server you have to orientation. when you take image where you are orientation image.
Extension Image Orientation before upload on server in Swift 5.0?
Thanks
So that, You have to properly rotate before the upload original image on the server.
Here create function for orientation of image in swift 3.0.
func imageOrientation(_ src:UIImage)->UIImage {
if src.imageOrientation == UIImageOrientation.up {
return src
}
var transform: CGAffineTransform = CGAffineTransform.identity
switch src.imageOrientation {
case UIImageOrientation.down, UIImageOrientation.downMirrored:
transform = transform.translatedBy(x: src.size.width, y: src.size.height)
transform = transform.rotated(by: CGFloat(M_PI))
break
case UIImageOrientation.left, UIImageOrientation.leftMirrored:
transform = transform.translatedBy(x: src.size.width, y: 0)
transform = transform.rotated(by: CGFloat(M_PI_2))
break
case UIImageOrientation.right, UIImageOrientation.rightMirrored:
transform = transform.translatedBy(x: 0, y: src.size.height)
transform = transform.rotated(by: CGFloat(-M_PI_2))
break
case UIImageOrientation.up, UIImageOrientation.upMirrored:
break
}
switch src.imageOrientation {
case UIImageOrientation.upMirrored, UIImageOrientation.downMirrored:
transform.translatedBy(x: src.size.width, y: 0)
transform.scaledBy(x: -1, y: 1)
break
case UIImageOrientation.leftMirrored, UIImageOrientation.rightMirrored:
transform.translatedBy(x: src.size.height, y: 0)
transform.scaledBy(x: -1, y: 1)
case UIImageOrientation.up, UIImageOrientation.down, UIImageOrientation.left, UIImageOrientation.right:
break
}
let ctx:CGContext = CGContext(data: nil, width: Int(src.size.width), height: Int(src.size.height), bitsPerComponent: (src.cgImage)!.bitsPerComponent, bytesPerRow: 0, space: (src.cgImage)!.colorSpace!, bitmapInfo: CGImageAlphaInfo.premultipliedLast.rawValue)!
ctx.concatenate(transform)
switch src.imageOrientation {
case UIImageOrientation.left, UIImageOrientation.leftMirrored, UIImageOrientation.right, UIImageOrientation.rightMirrored:
ctx.draw(src.cgImage!, in: CGRect(x: 0, y: 0, width: src.size.height, height: src.size.width))
break
default:
ctx.draw(src.cgImage!, in: CGRect(x: 0, y: 0, width: src.size.width, height: src.size.height))
break
}
let cgimg:CGImage = ctx.makeImage()!
let img:UIImage = UIImage(cgImage: cgimg)
return img
}
How To Use :
Before upload image on server you have to orientation. when you take image where you are orientation image.
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]){
var image = info[UIImagePickerControllerOriginalImage] as! UIImage
image = self.imageOrientation(image)
}
Extension Image Orientation before upload on server in Swift 5.0?
Thanks
iOS - Image Orientation before upload on server in Swift 3.0?
Reviewed by KIRIT MODI
on
02:20:00
Rating:
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