Question

NSDictionary* result = nil;

CGImageSourceRef source = CGImageSourceCreateWithData((__bridge CFDataRef)[self TIFFRepresentation], NULL);

if ( NULL == source )
{
}
else
{
    CFDictionaryRef metadataRef = CGImageSourceCopyPropertiesAtIndex (source, 0, NULL);
    if (metadataRef)
    {
        NSDictionary* immutableMetadata = (__bridge NSDictionary *)metadataRef;
        if (immutableMetadata)
        {
            result = [NSDictionary dictionaryWithDictionary : (__bridge NSDictionary *)metadataRef];
        }

        CFRelease(metadataRef);
        metadataRef = nil;
    }

    CFRelease(source);
    source = nil;
}

return result;

我正在使用带有ARC的XCode。当我在循环中的许多图像上运行它时，此代码会导致我的应用程序泄漏内存。有谁知道我做错了什么？

Answer 1

围绕代码包装@autoreleasepool解决了这个问题。图像大约为1.2MB

CGImageSourceRef内存泄漏

1 个答案: