[英]Setting UIImageView with image from cache
当用户这样登录时,我缓存图像:
这是在Utility.m
UIImage *image = [UIImage imageWithData:newProfilePictureData];
UIImage *mediumImage = [image thumbnailImage:280 transparentBorder:0 cornerRadius:0 interpolationQuality:kCGInterpolationHigh];
UIImage *smallRoundedImage = [image thumbnailImage:64 transparentBorder:0 cornerRadius:9 interpolationQuality:kCGInterpolationLow];
NSData *mediumImageData = UIImageJPEGRepresentation(mediumImage, 0.5); // using JPEG for larger pictures
NSData *smallRoundedImageData = UIImagePNGRepresentation(smallRoundedImage);
稍后,我想将小图像加载到UIImageView
:
这在UITableView
cellForRowAtIndexPath
[cell.leftIcon setImage:
有谁知道我如何引用缓存的图像?
您需要在Utility.m中使用以下方法,
+(NSString*)getImage {
return smallRoundedImage;
}
然后像下面一样使用它,
[cell.leftIcon setImage:[Utility getImage]];
PS:这只是一个例子,您可以根据自己的要求将其做得更好!
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