How to change UITableViewCell Image to Circle in UITableView

Question

My code works for the most part.

• The issue I am having is the images start out as square, and change to circle when I scroll the table or refresh it.

What am I missing?

Here's my code:

    cell.imageView.layer.cornerRadius = cell.imageView.frame.size.width / 2.0;
    cell.imageView.layer.borderWidth = 3.0;
    cell.imageView.layer.borderColor = [UIColor colorWithRed:157.0/255.0 green:34.0/255.0 blue:53.0/255.0 alpha:1.0]
    .CGColor;
    cell.imageView.clipsToBounds = YES;

    NSDictionary *tweet = (self.results)[indexPath.row];
    
    dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
    dispatch_async(queue, ^{
    
        NSString * imageString = [tweet valueForKeyPath:@"user.profile_image_url"];
        NSData * imageData = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString:imageString]];
        
        if (imageData != nil)
        {
            dispatch_async(dispatch_get_main_queue(), ^{
                
                cell.imageView.image = [UIImage imageWithData: imageData];

                [cell setNeedsLayout];
            });
        }
    });

EDIT ---- The code is in cellForRowAtIndexPath

• Right when I launch the app the cell images are square. If I pullToRefresh the change to round or if I start scrolling the table they change to round.

EDIT TWO

Another issue I am seeing is the images change as I scroll.

How do I prevent this?

Answer 1

In order if anyone having this problem, here is the solution in

Swift

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    var cell:ContactCellTableViewCell? = tableView.dequeueReusableCellWithIdentifier("contactCell", forIndexPath: indexPath) as? ContactCellTableViewCell



    var contact : ContactStruct
    image = searchResults[indexPath.row]
    let newImage = resizeImage(image, toTheSize: CGSizeMake(70, 70))
    var cellImageLayer: CALayer?  = cell?.imageView.layer
    cellImageLayer!.cornerRadius = 35
    cellImageLayer!.masksToBounds = true
    cell?.imageView.image = newImage


    return cell!
}

As you might noticed the 35 hardcode is basically half of the image size which is 70 in here. And here is the resize function:

func resizeImage(image:UIImage, toTheSize size:CGSize)->UIImage{


    var scale = CGFloat(max(size.width/image.size.width,
        size.height/image.size.height))
    var width:CGFloat  = image.size.width * scale
    var height:CGFloat = image.size.height * scale;

    var rr:CGRect = CGRectMake( 0, 0, width, height);

    UIGraphicsBeginImageContextWithOptions(size, false, 0);
    image.drawInRect(rr)
    let newImage = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext();
    return newImage
}

Note: I am using a custom cell class as below:

import UIKit

class ContactCellTableViewCell: UITableViewCell {

    @IBOutlet weak var nameLabel: UILabel!
    @IBOutlet weak var contactImage: UIImageView!
    @IBOutlet weak var phoneLabel: UILabel!




    override func awakeFromNib() {
        super.awakeFromNib()

    }

    override func setSelected(selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)

        // Configure the view for the selected state
    }
}

It really took me a while to figure this one out. The images become rounded after scrolling at first, but now using this code you are going to have the rounded images inside the cell from beginning. Hope it helped anyone.

Answer 2

Try this in override-

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

    // image Width(84) / 2 = 42
            cell.CellImage.layer.cornerRadius = 42.0
            cell.CellImage.layer.masksToBounds = true
         //or   

        cell.CellImage.layer.cornerRadius = cell.CellImage.frame.width / 2
        cell.CellImage.clipsToBounds = true
}

Answer 3

Most likely the cell's frame (and hence the imageView's frame) isn't set the very first time the cell is created. So setting the imageView's layer's cornerRadius based on that initial frame doesn't work. The best solution is to implement the tableView:willDisplayCell:forRowAtIndexPath: delegate method and set the layer there:

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {
    cell.imageView.layer.cornerRadius = cell.imageView.frame.size.width / 2.0;
}

Answer 4

Its simple..

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    cell.ImageView.layer.cornerRadius = 150.0f;
    cell.ImageView.layer.borderWidth = 2.0f;
    cell.ImageView.layer.borderColor = [UIColor blackColor].CGColor;
    cell.ImageView.clipsToBounds = YES;
}

Refer this link for more information: http://ios-blog.co.uk/tutorials/quick-tips/how-to-create-rounded-avatars-in-your-ios-application/