IOS how to download image from URL

Question

I have a URL image on the server. I use this to save avatar. How to I can use URL to download image and set in my ImageView.

Answer 1

try to use this code to download image in background

Make sure your url contains a image and it is valid url

NSString *strImgURLAsString = @"imageURL";
[strImgURLAsString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *imgURL = [NSURL URLWithString:strImgURLAsString];
[NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:imgURL] queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
    if (!connectionError) {
        UIImage *img = [[UIImage alloc] initWithData:data];
        // pass the img to your imageview
    }else{
        NSLog(@"%@",connectionError);
    }
}];

Answer 2

You can try this code

NSData *imageData = [NSData dataWithContentsOfURL:myImageURL];
NSString *imagePath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:@"/myImage.png"];
[imageData writeToFile:imagePath atomically:YES];