我已经使用visionKit 实现了文档扫描仪。最初我遇到了相机关闭问题并且它已修复。现在我试图在相机从框架中关闭后将图像发送到示例项目。
我曾尝试使用完成处理程序，但它不起作用。
这是框架的代码:
public class A8Scan: NSObject, VNDocumentCameraViewControllerDelegate {
var imageNew: UIImage?
var statusImage: UIImageView?
private var clientView: UIViewController?
public init(_ viewController:UIViewController){
self.clientView = viewController
}
public func showScanner(imgData: UIImage?){
self.createTaskController(img: imgData)
print("Called Build")
}
private func createTaskController(img: UIImage?){
let scannerViewController = VNDocumentCameraViewController()
scannerViewController.delegate = self
self.clientView?.present(scannerViewController,animated:true,completion: {
self.imageNew = img
})
}
public func imageFromFile(result: @escaping (_ image: UIImage?) -> Void){
//the image
let scannerViewController = VNDocumentCameraViewController()
scannerViewController.delegate = self
self.clientView?.present(scannerViewController,animated:true,completion: nil)
if imageNew != nil {
result(imageNew)
}
else{
//callback nil so the app does not pause infinitely if
//the error != nil
result(nil)
}
}
func set(image: UIImage) {
self.statusImage?.image = image
}
public func documentCameraViewController(_ controller: VNDocumentCameraViewController, didFinishWith scan: VNDocumentCameraScan) {
guard scan.pageCount >= 1 else {
controller.dismiss(animated: true)
return
}
let originalImage = scan.imageOfPage(at: 0)
let newImage = compressedImage(originalImage)
imageNew = newImage
set(image: imageNew!)
print("new image::\(newImage.size)")
controller.dismiss(animated: true, completion: nil)
// processImage(newImage)
}
public func documentCameraViewController(_ controller: VNDocumentCameraViewController, didFailWithError error: Error) {
print(error)
controller.dismiss(animated: true)
}
public func documentCameraViewControllerDidCancel(_ controller: VNDocumentCameraViewController) {
controller.dismiss(animated: true)
}
func compressedImage(_ originalImage: UIImage) -> UIImage {
guard let imageData = originalImage.jpegData(compressionQuality: 1),
let reloadedImage = UIImage(data: imageData) else {
return originalImage
}
return reloadedImage
}
}
这是代码示例项目:
@IBAction func btnAction(_ sender: Any) {
// A8Scan(self).showScanner()
// A8Scan(self).showScanner(imgData: im)
// print("nn", A8Scan(self).showScanner(imgData: im))
A8Scan(self).imageFromFile { (image) in
if image != nil {
print(image!)
} else {
print("something went wrong")
}
}
// p()
}
func p (){
ScannerViewController().imageFromFile{(image: UIImage?) -> Void in
//use the image that was just retrieved
print("image data", image)
}
}
我的问题是从框架中关闭相机后，它不会将图像从框架发送到示例项目。
任何帮助非常感谢请....
最佳答案
1-
将此添加到您的框架中
var callBack((UIImage)-())?
public func show() {
let scannerViewController = VNDocumentCameraViewController()
scannerViewController.delegate = self
self.clientView?.present(scannerViewController,animated:true,completion: nil)
}
2-
let newImage = compressedImage(originalImage)
callBack?(newImage)
3-
然后在使用它的vc里面
let vc = A8Scan(self)
vc.show()
vc.callBack = { [weak self] image in
}
关于ios - 如何在 iOS Swift 中将图像从框架发送到示例项目？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59248664/