ios – CIImage内存泄漏

概述我正在使用以下方法模糊一些图像.使用仪器CI Image正在泄漏.我尝试将它们包装在@autoreleasepool中,但没有运气.有任何想法吗？ -(UIImage *)blurImage:(UIImage *)image withStrength:(float)strength{ @autoreleasepool { CIContext *context = [CIC 我正在使用以下方法模糊一些图像.使用仪器CI Image正在泄漏.我尝试将它们包装在@autoreleasepool中,但没有运气.有任何想法吗？

-(UIImage *)blurImage:(UIImage *)image withStrength:(float)strength{    @autoreleasepool {        CIContext *context = [CIContext contextWithOptions:nil];        CIImage *inputimage = [[CIImage alloc] initWithCGImage:image.CGImage];        CIFilter *filter = [CIFilter filterWithname:@"CIGaussianBlur"];        [filter setValue:inputimage forKey:@"inputimage"];        [filter setValue:[NSNumber numberWithfloat:strength] forKey:@"inputRadius"];        CIImage *result = [filter valueForKey:kCIoUtputimageKey];        float scale =  [[UIScreen mainScreen] scale];        CIImage *cropped=[result imageByCropPingToRect:CGRectMake(0,image.size.wIDth*scale,image.size.height*scale)];        CGRect extent = [cropped extent];        CGImageRef cgImage = [context createCGImage:cropped fromrect:extent];        UIImage *returnImage = [UIImage imageWithCGImage:cgImage].copy;        CGImageRelease(cgImage);        return returnImage;    }}

解决方法 我在分析代码时看到了同样的泄漏.试试这个似乎可以避免泄漏并给你相同的结果：

- (UIImage*)blurImage:(UIImage*)image withStrength:(float)strength{    @autoreleasepool {        CIImage* inputimage = [[CIImage alloc] initWithCGImage:image.CGImage];        CIFilter* filter = [CIFilter filterWithname:@"CIGaussianBlur"];        [filter setValue:inputimage forKey:@"inputimage"];        [filter setValue:[NSNumber numberWithfloat:strength] forKey:@"inputRadius"];        CIImage* result = [filter valueForKey:kCIoUtputimageKey];        float scale = [[UIScreen mainScreen] scale];        CIImage* cropped = [result imageByCropPingToRect:CGRectMake(0,image.size.wIDth * scale,image.size.height * scale)];        return [[UIImage alloc] initWithCIImage:cropped];    }}

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