当在风景中观看时，在肖像拍摄的图像被扭曲
我创build了一个捕获button的视图。 当我点击那个button相机屏幕打开。 但在纵向中查看时，以纵向拍摄的图像会变形。 如何获得实际图像而不失真？
如果您在iOS 5上工作，那么当您捕捉图像并存储到照片中时，您必须手动调用此function。
- (UIImage *)fixOrientation : (UIImage *)img { if (img.imageOrientation == UIImageOrientationUp) return img; CGAffineTransform transform = CGAffineTransformIdentity; switch (img.imageOrientation) { case UIImageOrientationDown: case UIImageOrientationDownMirrored: transform = CGAffineTransformTranslate(transform, img.size.width, img.size.height); transform = CGAffineTransformRotate(transform, M_PI); break; case UIImageOrientationLeft: case UIImageOrientationLeftMirrored: transform = CGAffineTransformTranslate(transform, img.size.width, 0); transform = CGAffineTransformRotate(transform, M_PI_2); break; case UIImageOrientationRight: case UIImageOrientationRightMirrored: transform = CGAffineTransformTranslate(transform, 0, img.size.height); transform = CGAffineTransformRotate(transform, -M_PI_2); break; } switch (img.imageOrientation) { case UIImageOrientationUpMirrored: case UIImageOrientationDownMirrored: transform = CGAffineTransformTranslate(transform, img.size.width, 0); transform = CGAffineTransformScale(transform, -1, 1); break; case UIImageOrientationLeftMirrored: case UIImageOrientationRightMirrored: transform = CGAffineTransformTranslate(transform, img.size.height, 0); transform = CGAffineTransformScale(transform, -1, 1); break; } CGContextRef ctx = CGBitmapContextCreate(NULL, img.size.width, img.size.height, CGImageGetBitsPerComponent(img.CGImage), 0, CGImageGetColorSpace(img.CGImage), CGImageGetBitmapInfo(img.CGImage)); CGContextConcatCTM(ctx, transform); switch (img.imageOrientation) { case UIImageOrientationLeft: case UIImageOrientationLeftMirrored: case UIImageOrientationRight: case UIImageOrientationRightMirrored: // Grr... CGContextDrawImage(ctx, CGRectMake(0,0,img.size.height,img.size.width), img.CGImage); break; default: CGContextDrawImage(ctx, CGRectMake(0,0,img.size.width,img.size.height), img.CGImage); break; } CGImageRef cgimg = CGBitmapContextCreateImage(ctx); UIImage *img1 = [UIImage imageWithCGImage:cgimg]; CGContextRelease(ctx); CGImageRelease(cgimg); return img1; } - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { self.image = [info objectForKey:UIImagePickerControllerOriginalImage]; snapimage.image = [self fixOrientation:self.image]; } - (void)imagePickerController:(UIImagePickerController *)picker1 didFinishPickingImage:(UIImage *)image1 editingInfo:(NSDictionary *)editingInfo { [picker1 dismissModalViewControllerAnimated:YES]; snapimage.image = [self fixOrientation:image1]; } 您需要将横向自定义为视图中心的图像，在shouldAutorotateToInterfaceOrientation方法中
尝试像这样：
if(interfaceOrientation == UIInterfaceOrientationLandscapeRight || UIInterfaceOrientationLandscapeLeft) { here customize the rect of your image }