func imagePickerController(_ picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {}
从上面的代码检索的图像将图像旋转90度任何解决方案?
答案 0 :(得分:3)
我遇到了同样的问题。请检查此UIImage扩展名:
import UIKit
extension UIImage {
func fixedOrientation() -> UIImage {
// No-op if the orientation is already correct
if (imageOrientation == UIImageOrientation.up) {
return self
}
// We need to calculate the proper transformation to make the image upright.
// We do it in 2 steps: Rotate if Left/Right/Down, and then flip if Mirrored.
var transform:CGAffineTransform = CGAffineTransform.identity
if (imageOrientation == UIImageOrientation.down
|| imageOrientation == UIImageOrientation.downMirrored) {
transform = transform.translatedBy(x: size.width, y: size.height)
transform = transform.rotated(by: CGFloat(M_PI))
}
if (imageOrientation == UIImageOrientation.left
|| imageOrientation == UIImageOrientation.leftMirrored) {
transform = transform.translatedBy(x: size.width, y: 0)
transform = transform.rotated(by: CGFloat(M_PI_2))
}
if (imageOrientation == UIImageOrientation.right
|| imageOrientation == UIImageOrientation.rightMirrored) {
transform = transform.translatedBy(x: 0, y: size.height);
transform = transform.rotated(by: CGFloat(-M_PI_2));
}
if (imageOrientation == UIImageOrientation.upMirrored
|| imageOrientation == UIImageOrientation.downMirrored) {
transform = transform.translatedBy(x: size.width, y: 0)
transform = transform.scaledBy(x: -1, y: 1)
}
if (imageOrientation == UIImageOrientation.leftMirrored
|| imageOrientation == UIImageOrientation.rightMirrored) {
transform = transform.translatedBy(x: size.height, y: 0);
transform = transform.scaledBy(x: -1, y: 1);
}
// Now we draw the underlying CGImage into a new context, applying the transform
// calculated above.
let ctx:CGContext = CGContext(data: nil, width: Int(size.width), height: Int(size.height),
bitsPerComponent: cgImage!.bitsPerComponent, bytesPerRow: 0,
space: cgImage!.colorSpace!,
bitmapInfo: cgImage!.bitmapInfo.rawValue)!
ctx.concatenate(transform)
if (imageOrientation == UIImageOrientation.left
|| imageOrientation == UIImageOrientation.leftMirrored
|| imageOrientation == UIImageOrientation.right
|| imageOrientation == UIImageOrientation.rightMirrored
) {
ctx.draw(cgImage!, in: CGRect(x:0,y:0,width:size.height,height:size.width))
} else {
ctx.draw(cgImage!, in: CGRect(x:0,y:0,width:size.width,height:size.height))
}
// And now we just create a new UIImage from the drawing context
let cgimg:CGImage = ctx.makeImage()!
let imgEnd:UIImage = UIImage(cgImage: cgimg)
return imgEnd
}
}
让我知道它是否适合您。 :)
答案 1 :(得分:0)
您用于获取图片的方法,即didFinishPickingImage
是depreciated
。使用以下委托函数来获取图像:
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
}