SDImageCache placeholder gif - ios

Question

I am trying to create a gif as a place holder for my SDImageCache.
So first off I created the gif:
_imageView =[[UIImageView alloc] initWithFrame:CGRectMake(0, 0, cell.thumbnailImageView.frame.size.width,
cell.thumbnailImageView.frame.size.height)];
_imageView.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"Polygon 1 copy.bolt_00000"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00000"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00001"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00002"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00003"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00004"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00005"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00006"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00007"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00008"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00009"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00010"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00011"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00012"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00013"], [UIImage imageNamed:#"Polygon 1 copy.bolt_00014.png"], nil];
_imageView.animationRepeatCount = 500;
I then turned it into an UIimage
UIImage *imagety = _imageView.image; // get the UIImage
UIImage *otherImage = [UIImage imageNamed:#"Loadimage.png"]; // load another image
_imageView.image = otherImage; // change in the image in your UIImageView
following that I put it as the placeholder:
SDImageCache *imageCache = [SDImageCache sharedImageCache];
[imageCache queryDiskCacheForKey:encodedString done:^(UIImage *image, SDImageCacheType cacheType) {
if (image){
cell.thumbnailImageView.image = image;
}else{
[cell.thumbnailImageView setImageWithURL:[NSURL URLWithString:encodedString] placeholderImage:imagety completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) {
[imageCache storeImage:image forKey:encodedString];
}];
}
}];
But this does not seem to work? Do you have any ideas why?

Answer 1

If you check the value returned by _imageView.image:
UIImage *imagety = _imageView.image;
you should see that it is nil. This is due to your using animationImages to handle an animation through the view.
You cannot have a UIImageView (or the animation associated to it) used as a placeholder image in SDImage.
You could use:
UIImage *imagety = [UIImage animatedImageWithImages:
[NSArray arrayWithObjects:
[UIImage imageNamed:...],
nil]
duration:10.0f];
(docs)
animatedImageWithImages:duration:
Creates and returns an animated image from an existing set of images.
+ (UIImage *)animatedImageWithImages:(NSArray *)images duration:(NSTimeInterval)duration