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我试图在拍照后剪下图像。这在非Retina设备上正常工作。但在Retina设备上收到内存警告。我认为在我注释掉图像的情况下会有一些内存泄漏,没有问题。iOS在切割图像时收到内存警告
代码:拍照后
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
CGSize imageSize = image.size;
CGFloat width = imageSize.width;
CGFloat height = imageSize.height;
CGFloat newDimension = 2360;
CGFloat widthOffset = 20 * [[UIScreen mainScreen] scale];
CGFloat heightOffset = 135 * [[UIScreen mainScreen] scale];
UIGraphicsBeginImageContextWithOptions(CGSizeMake(newDimension, newDimension), NO, 0.);
[image drawAtPoint:CGPointMake(-widthOffset, -heightOffset)
blendMode:kCGBlendModeCopy
alpha:1.];
productImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
[self dismissViewControllerAnimated:NO completion:nil];
...
}
第一次,我得到了内存不足的警告,但不会崩溃。当我尝试重新打开相机时,应用程序崩溃。有人可以帮我吗?谢谢