iPhone - CGBitmapContextCreateImage 泄漏，还有其他人遇到这个问题吗？

Question

还有人遇到过这个问题吗？我经常使用 NSTimer 调整图像大小。使用 Instruments 后，它没有显示任何内存泄漏，但我的 objectalloc 继续攀升。它直接指向CGBitmapContextCreateImage。

有人知道解决办法吗？或者甚至可能的想法？

-(UIImage *) resizedImage:(UIImage *)inImage : (CGRect)thumbRect : (double)interpolationQuality
{
    CGImageRef          imageRef = [inImage CGImage];
    CGImageAlphaInfo    alphaInfo = CGImageGetAlphaInfo(imageRef);

    if (alphaInfo == kCGImageAlphaNone)
        alphaInfo = kCGImageAlphaNoneSkipLast;

    // Build a bitmap context that's the size of the thumbRect
    CGContextRef bitmap = CGBitmapContextCreate(
                    NULL,
                    thumbRect.size.width,
                    thumbRect.size.height,      
                    CGImageGetBitsPerComponent(imageRef),
                    4 * thumbRect.size.width,   
                    CGImageGetColorSpace(imageRef),
                    alphaInfo
                    );

    // Draw into the context, this scales the image
    CGContextSetInterpolationQuality(bitmap, interpolationQuality);
    CGContextDrawImage(bitmap, thumbRect, imageRef);

    // Get an image from the context and a UIImage
    CGImageRef  ref = CGBitmapContextCreateImage(bitmap);
    UIImage*    result = [UIImage imageWithCGImage:ref];

    CGContextRelease(bitmap);   // ok if NULL
    CGImageRelease(ref);

    return [result autorelease];
}

Answer 1

您应该发布 imageRef 吗？

CGImageRelease(imageRef);