Reputation: 1091
Here I am creating an iPhone app using facebook api. I have loaded the friends list and their profile pictures into a table view. But now its running slowly. I want to speed up the loading of the pictures, how can I do that?
Here is my sample code:
- (void)request:(FBRequest*)request didLoad:(id)result {
NSArray* users = result;
for (int ndx = 0; ndx < [users count] ; ndx++)
{
NSDictionary* user = [users objectAtIndex:ndx];
NSString* name = [user objectForKey:@"name"];
NSString *imageName = [user objectForKey:@"pic_big"];
[imageArray addObject:imageName];
[friendsList addObject:name];
}
}
In tableview delegate method:
imageData = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString: [imageArray objectAtIndex:indexPath.row]]];
image = [[UIImage alloc] initWithData:imageData];
cell.imageView.image =image;
And also the picture sizes are different. Please help thanks
Upvotes: 1
Views: 598
Reputation: 15628
By using the Lazyloading concept you can make it run fastly.
Just download this class for lazyloading.
It is very easy to impelement.
#import "UIImageView+WebCache.h" // Import this
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
------------------
------------------
[cell.imageView setImageWithURL:[NSURL URLWithString:@"http://www.domain.com/path/to/image.jpg"] placeholderImage:[UIImage imageNamed:@"placeholder.png"]];
cell.textLabel.text = @"My Text";
return cell;
}
Upvotes: 1