Swift 线程1：使用iActions时信号SIGABRT错误？

我试图创建一个项目使用我尽了最大努力，试图重新创建代码，但有一些问题。这是我的密码：

class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

@IBOutlet var ImageView: UIImageView!

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

@IBAction func choosePhoto(sender: AnyObject) {

    let imagePickerController = UIImagePickerController()
    imagePickerController.delegate = self

    let actionSheet = UIAlertController(title: "Choose image source", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)

    actionSheet.addAction(UIAlertAction(title: "Camera roll", style: UIAlertActionStyle.Default, handler: { ( alert: UIAlertAction!) -> Void in
        imagePickerController.sourceType = UIImagePickerControllerSourceType.Camera
        self.presentViewController(imagePickerController, animated: true, completion: nil)
    } ))

    actionSheet.addAction(UIAlertAction(title: "Take Photo", style: UIAlertActionStyle.Default, handler: { ( alert: UIAlertAction!) -> Void in
        imagePickerController.sourceType = UIImagePickerControllerSourceType.Camera
        self.presentViewController(imagePickerController, animated: true, completion: nil)
    } ))

    actionSheet.addAction(UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: nil))

    self.presentViewController(actionSheet, animated: true, completion: nil)

}

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) {
    let image: UIImage = info[UIImagePickerControllerOriginalImage] as UIImage
    ImageView.image = image
    picker.dismissViewControllerAnimated(true, completion: nil)
}

@IBAction func applyFilter(sender: AnyObject) {

    applyFilterWithName("CIPhotoEffectMono")


}

func applyFilterWithName(filterName: String){
    let originlOrientation = ImageView.image!.imageOrientation
    let originalScale = ImageView.image!.scale

    let inputImage = CIImage(image : ImageView.image)
    let drawingContext = CIContext(options: nil)

    let filterParameters = [kCIInputImageKey: inputImage]

    let filter = CIFilter(name: filterName, withInputParameters: filterParameters)

    let outputImage = filter.outputImage

    let imageRef = drawingContext.createCGImage(outputImage, fromRect: outputImage.extent())

    ImageView.image = UIImage(CGImage: imageRef, scale: originalScale, orientation: originlOrientation)


}

@IBAction func saveImage(sender: AnyObject) {

    UIImageWriteToSavedPhotosAlbum(ImageView.image, nil, nil, nil)

}

我知道这是我必须查看的调试器输出的主要部分：

图像过滤器[20320:1554357]***由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因：“源类型1不可用”

我似乎不知道这个错误在哪里，也不知道如何修复它。再一次，我尽了最大努力重新创建代码，但可能会出现错误

如有任何建议或意见，将不胜感激

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提前感谢。

您的代码毫无意义。你是说：

actionSheet.addAction(UIAlertAction(title: "Camera roll", style: UIAlertActionStyle.Default, handler: { ( alert: UIAlertAction!) -> Void in
    imagePickerController.sourceType = UIImagePickerControllerSourceType.Camera
    self.presentViewController(imagePickerController, animated: true, completion: nil)
} ))

如果用户要点击“摄像头滚动”按钮，那么为什么要创建一个带有

摄像头

源类型的图像选择器控制器？这不是用户要求的

---

顺便说一下，这个错误仅仅意味着没有摄像头。您没有试图在模拟器中运行此代码，是吗？那也毫无意义。摄像机只存在于一个设备上——一个带有摄像机的设备。

我在模拟器上运行这个。现在这很有道理。我以为模拟器有摄像头是出于愚蠢的原因。谢谢你的回答。它解决了这个问题