我尝试使用相机按钮拍摄照片，并将该图像通过segue传递到另一个视图控制器进行编辑。我的代码有问题，因为当我按下相机按钮时，应用程序崩溃了。这是摄像机视图控制器的代码。我已经检查了故事板中的所有连接。
@IBAction func snapStillImage(sender: AnyObject) {
print("snapStillImage")
dispatch_async(self.sessionQueue, {
// Update the orientation on the still image output video connection before capturing.
let videoOrientation = (self.previewView.layer as! AVCaptureVideoPreviewLayer).connection.videoOrientation
self.stillImageOutput!.connectionWithMediaType(AVMediaTypeVideo).videoOrientation = videoOrientation
// Flash set to Auto for Still Capture
View3.setFlashMode(AVCaptureFlashMode.Auto, device: self.videoDeviceInput!.device)
self.stillImageOutput!.captureStillImageAsynchronouslyFromConnection(self.stillImageOutput!.connectionWithMediaType(AVMediaTypeVideo), completionHandler: {
(imageDataSampleBuffer: CMSampleBuffer!, error: NSError!) in
if error == nil {
let data:NSData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(imageDataSampleBuffer)
let mainpictures:UIImage = UIImage( data: data)!
let orientation: ALAssetOrientation = ALAssetOrientation(rawValue: mainpictures.imageOrientation.rawValue)!
func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "test") {
let destViewController : photoEditViewController = segue.destinationViewController as! photoEditViewController
destViewController.mainpictures = "edit"
以下是第二个视图控制器的代码
class photoEditViewController: UIViewController {
var mainpictures = String ()
@IBOutlet var mainImage: UIImageView!
override func viewDidLoad() {
if let image = UIImage(named: mainpictures) {
self.mainImage.image = image
}
感谢社区