UIImagePickerController在50-60张图像后崩溃应用程序

Question

我在swift中遇到了UIImagePickerController的一个严重问题.在连续捕获50-60张图像后,应用程序崩溃而没有在结构崩溃中记录任何问题.这似乎是一个记忆问题.我尝试了以下解决方案.

@interface UIImagePickerController (Singleton)
   +(UIImagePickerController *) instance;
@end

@implementation UIImagePickerController (Singleton)
  +(UIImagePickerController *) instance{
   static UIImagePickerController *_instance;
   static dispatch_once_t onceToken;
   dispatch_once(&onceToken,^{
     _instance=[[UIImagePickerController alloc] init];
   });
   return _instance
  }

if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera){
    let image = UIImagePickerController.instance() //Singleton call used here
    image.delegate = self
    image.sourceType = UIImagePickerControllerSourceType.Camera
    image.allowEditing = true
    self.presentViewController(image,animated: true,completion: nil)
}

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]){
    autoreleasepool{
      var image: UIImage? =info[UIImagePickerControllerOriginalImage] as! UIImage
      imageView.image = Utils.resizeAndCompress(image)
      image=nil
   } 
   self.dismissViewControllerAnimated(true,completion: nil)
}

知道这里有什么问题吗？我们将不胜感激.谢谢

class func resizeAndCompress(image: UIImage!) -> UIImage? {

    let size = image.size
    let maxLength: CGFloat = 640.0

    var newSize: CGSize
    if size.width > size.height {
        let scale = maxLength / size.width
        newSize = CGSizeMake(maxLength, size.height * scale)
    } else {
        let scale = maxLength / size.height
        newSize = CGSizeMake(size.width * scale, maxLength)
    }

    // This is the rect that we've calculated out and this is what is actually used below
    let rect = CGRectMake(0, 0, newSize.width, newSize.height)

    // Actually do the resizing to the rect using the ImageContext stuff
    UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
    image.drawInRect(rect)
    let resizedImage = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()

        return resizedImage

}

崩溃的解决方案 问题出现在iOS版本中.我使用AVVideoCapture创建了自定义图像选择器控件.现在我能够拍摄超过1000张图像.