Sdwebimage: How can I add a fade in effect?

Created on 23 Oct 2013 · 6Comments · Source: SDWebImage/SDWebImage

Hello!
How can I add a fade in effect when the image is retrieved?
BTW, the sample project does not work, it seems

import "webp/decode.h"

is missing in
UIImage+WebP.h
and vender/libwebp folder is empty.
I donwloaded the project as a ZIP file right now.
Thanks.

Source

Ricardo1980

Most helpful comment

use completed block

[photoImgeView setImageWithURL:[NSURL URLWithString:photoPath] 
    completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) {
        if (cacheType == SDImageCacheTypeNone) {
            photoImgeView.alpha = 0;
            [UIView animateWithDuration:0.3 animations:^{
                photoImgeView.alpha = 1;
            }];
        } else {
            photoImgeView.alpha = 1;
        }
    }];

asuralyc on 23 Oct 2013

👍6 🎉2

All 6 comments

use completed block

[photoImgeView setImageWithURL:[NSURL URLWithString:photoPath] 
    completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) {
        if (cacheType == SDImageCacheTypeNone) {
            photoImgeView.alpha = 0;
            [UIView animateWithDuration:0.3 animations:^{
                photoImgeView.alpha = 1;
            }];
        } else {
            photoImgeView.alpha = 1;
        }
    }];

asuralyc on 23 Oct 2013

👍6 🎉2

Works perfectly! Thanks.
One question regarding memory management, isn't it there a retain cycle in photoImgeView?
I mean, try to change photoImgeView by cell.photoImgeView.
Thanks.

Ricardo1980 on 24 Oct 2013

It works fine with UITableViewCell.

asuralyc on 25 Oct 2013

Thanks.

Ricardo1980 on 25 Oct 2013

It worked thanks @asuralyc