load image fastly from url - objective-c

Question

I have used SDWebimages classes for loading the image from url to image view. But it is still taking time to load.
NSString *filePath1 = [NSString stringWithFormat:#"%#",pathimage1];
[cell.image1 setImageWithURL:[NSURL URLWithString:filePath1]placeholderImage:[UIImage imageNamed:#"placeholder.png"]];
Can anyone tell me what I am doing wrong? Or the best way to load the image from url.

Answer 1

Try this :
NSString *filePath1 = [NSString stringWithFormat:#"%#",pathimage1];
[cell.image1 setImageWithURL:[NSURL URLWithString:filePath1]]
placeholderImage:[UIImage imageNamed:#"placeholder.png"]
success:^(UIImage *image, BOOL cached)
{
dispatch_async(dispatch_get_main_queue(), ^{
cell.image1.image = image;
});
NSLog(#"success Block");
}
failure:^(NSError *error)
{
NSLog(#"failure Block");
}];

Answer 2

Loading images from the network may take a long time to load for several reasons, two of the most obvious being
Slow connection to the internet on the device (Wifi / 3G / 2G).
Overloaded server.
To speed things up if you have control over the server and the images that are stored on it you could always load a smaller version (low quality preview/thumbnail) initially, followed by loading a larger / full-size version when needed:
typedef enum {
MyImageSizeSmall,
MyImageSizeMedium,
MyImageSizeLarge
} MyImageSize;
-(void)requestAndLoadImageWithSize:(MyImageSize)imageSize intoImageView:(UIImageView *)imageView
{
NSString *imagePath
switch (imageSize)
{
case MyImageSizeSmall:
imagePath = #"http://path.to/small_image.png";
break;
case MyImageSizeMedium:
imagePath = #"http://path.to/medium_image.png";
break;
case MyImageSizeLarge:
imagePath = #"http://path.to/large_image.png";
break;
}
[imageView setImageWithURL:[NSURL URLWithString:imagePath]
placeholderImage:[UIImage imageNamed:#"placeholder.png"]];
}