CODEWITHSUNDEEP
iosuiviewautolayout
Arbitur
Arbitur

Reputation: 39081

Make view round after autolayout

I have a tableview with custom cells which are built from storyboard with an identifier using AutoLayout.

One of the subviews needs to be round (layer.cornerRadius = width/2), it is a square in the beginning.

I have tried in layoutSubviews() but it seems to be called before AutoLayout changes its size... same thing for didMoveToSuperview()

Where is the proper function to update things like this to my subviews after AutoLayout has changed their sizes?

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("cell_small") as! Cell
    ...
    return cell
}

// In Cell

override func layoutSubviews() {
    rankLabel.layer.cornerRadius = rankLabel.bounds.width/2
    rankLabel.layer.masksToBounds = true
}

override func didMoveToSuperview() {
    rankLabel.layer.cornerRadius = rankLabel.bounds.width/2
    rankLabel.layer.masksToBounds = true
}

Result:

Upvotes: 9

Views: 3751

Answers (6)

Usman
Usman

Reputation: 467

I had the same issue with my imageview so i resolved it by sub-classing UIImageView.

@interface MyImageView : UIImageView

@end

@implementation MyImageView

-(void)layoutSubviews
{
    [super layoutSubviews];    
    self.layer.cornerRadius = self.bounds.size.width / 2.0;
}
@end

Upvotes: 1

Anisha V
Anisha V

Reputation: 61

1.Create a custom class of UIView/category

#import <UIKit/UIKit.h>
@interface RoundView : UIView

@end
#import "RoundView.h"

2.Add layoutSubviews method and set corner radius.

@implementation RoundView

-(void)layoutSubviews{

[super layoutSubviews];

self.layer.cornerRadius = self.bounds.size.width/2;

self.layer.masksToBounds = true;

}

3.Make your UIView as a subclass of RoundView and run the application, you can see circle view.

Upvotes: 3

Arbitur
Arbitur

Reputation: 39081

What I ended up doing was making a class called RoundView

class RoundView:UIView {
    override func layoutSubviews() {
        super.layoutSubviews()

        self.layer.cornerRadius = self.bounds.width/2
        self.layer.masksToBounds = true
    }
}

And then I apply it to every view I need to be round. So in Storyboard I add RoundView to Custom Class.

What was happening was that if you look inside the source of the storyboard (XML) every view had the size of the whole screen, you can look inside your own SB code. So by trying to add a corner radius equal to the width/2 inside its parent layoutSubviews() that subview hasn't got its frame set correctly. So the corner radius got the value of 320/2 instead of 50/2, thats why it got misshaped.

Upvotes: 15

Gil Sand
Gil Sand

Reputation: 6040

It's strange, I make my round cells just by using your code. (and I also use auto layout).

The only difference is, I use .frame and not .bounds (divided by 2). Have you tried that?

Otherwise you can use a custom cell and in the -awakeFromNib set rounding the same way, so you don't have to do it in each cell.

Upvotes: 0

BangOperator
BangOperator

Reputation: 4437

Try subclassing UITableViewCell like this,

@interface RoundingCell : UITableViewCell

@property (nonatomic,weak) IBOutlet UILabel * someLabel;

@end

@implementation RoundingCell

-(void)layoutSubviews
{
    [super layoutSubviews];
    self.someLabel.layer.cornerRadius = CGRectGetHeight(self.someLabel.bounds)/2;
    self.someLabel.layer.masksToBounds = YES;
}

@end

And Use this as the class of the desired cell, along with IBOutlet connections.

Upvotes: 1

Christian
Christian

Reputation: 4641

You have two options:

  1. Create a custom Class YourCell and add your code to the initWithCoder-Method
  2. Add a method to your ViewController

like following

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath

and change it inside there. To access the cell you call

[(YourCell *)cell view]....

Upvotes: -1

Related Questions