Round corners on UITableView - iphone

Question

What is the best way to get round corners on an entire UITableView as seen in Stocks and Spotlight? The grouped style doesn't solve the problem because the round corners scroll away with the cell. I'm trying to clip the view so the corners are always round regardless of scroll position.
I saw another discussion about doing this to a UIImage that suggested masking it with another image. I'm not sure if this would work because I need taps to pass through to the table. This isn't isn't ideal for me because I want the background pattern to show through through the corners.

Answer 1

It's an old question but perhaps you still want to know how to do this.
I reproduced a tableView like in Stocks/Spotlight. The trick is
view.layer.cornerRadius = 10;
For this to work you need to include the QuartzCore into the class that you call that property:
#import <QuartzCore/QuartzCore.h>
I heard that this only works since OS 3.0. But since my application is using core data it wasn't a problem because it was already for OS 3.0 and hight.
I created a custom UIView with a subview with cornerRadius 10 and with
view.backgroundColor = [UIColor clearColor];
Then you have to place an UITableView grouped style in that subview. You need to set the backgroundColor to clearColor and the separatorColor to clearColor. Then you have to position the tableview inside the rounded corner view, this is done by setting the frame size and origin. My loadView class of my custom UIView looks like this:
self.view = [[UIView alloc] init];
self.view.backgroundColor = [UIColor clearColor];
CustomUIViewClass *scherm = [[CustomUIViewClass alloc] init];
CGRect frame;
frame.origin.x = 10;
frame.origin.y = 50;
frame.size.width = 300;
frame.size.height = 380;
scherm.frame = frame;
scherm.clipsToBounds = YES;
scherm.layer.cornerRadius = 10;
[self.view addSubview:scherm];
CustomUITableViewClass *table = [[CustomUITableViewClass alloc] initWithStyle:UITableViewStyleGrouped];
frame.origin.y = -10;
frame.origin.x = -10;
frame.size.width = 320;
frame.size.height = 400;
table.tableView.frame = frame;
[scherm addSubview:table.tableView];
I hope you understand my english, maybe I will write a short blog post about this technique with a sample project, will post the link here when I'm ready.

Answer 2

An easier way to do this is to simply import the QuartzCore framework to your project. #import <QuartzCore/QuartzCore.h> to your tableViewController and just set
myTableView.layer.cornerRadius=5;
This will give you rounded corners without having to add your tableview to a superView or clipping it.

Answer 3

Instead of hacking through the code, here's an easy to mimic the grouped style. This works if all you want is one section.
In Interface Builder:
Set UITableView style to Plain and make the frame with some padding on the left and right, perhaps with x = 10 and width = 300.
Then set the corner radius and color yourself:
#import <QuartzCore/QuartzCore.h>
self.tableView.layer.borderColor = [UIColor colorWithWhite:0.6 alpha:1].CGColor;
self.tableView.layer.borderWidth = 1;
self.tableView.layer.cornerRadius = 4;

Answer 4

Have you tried the "grouped" table view style?
self.tableView.style = UITableViewStyleGrouped;
For further reference, see the Table View Programming Guide. The "About Table Views" chapter has some nice screenshots describing the different styles.

Answer 5

Well, there is alot of approach to solve this problem.
However, in my case, all doesn't work correctly. My table sometimes is smaller than table size.
I will share the way I did. I belive is alot easer and faster than some options above.
Make the first and last item rounded.
Create CAShapeLayer for top(left|right) and bottom(left|right).
shapeTop = [CAShapeLayer layer];
shapeTop.path = [UIBezierPath
bezierPathWithRoundedRect:CGRectMake( 0.0f, 0.0f, 306.0f, 58.0f )
byRoundingCorners:UIRectCornerTopLeft | UIRectCornerTopRight
cornerRadii:CGSizeMake( 6.0f, 6.0f )].CGPath;
shapeBottom = [CAShapeLayer layer];
shapeBottom.path = [UIBezierPath
bezierPathWithRoundedRect:CGRectMake( 0.0f, 0.0f, 306.0f, 58.0f )
byRoundingCorners:UIRectCornerBottomLeft | UIRectCornerBottomRight
cornerRadii:CGSizeMake( 6.0f, 6.0f )].CGPath;
The table need to be backgroud clearColor;
The cells has to be a colored background;
Set the layer.mask of it
UIView* backgroundView = [[UIView alloc] initWithFrame:CGRectZero];
backgroundView.backgroundColor = [UIColor whiteColor];
cell.backgroundView = backgroundView;
Don't forget #import <QuartzCore/QuartzCore.h>

Answer 6

I recently came across this problem and solved it a different way. Thought I'd share the results with everyone.
I created a rectangular UIView with a clear, rounded-corner interior, and then laid that on top of the UITableView. You can find the full description at my programming blog.
It works exactly the way I want.

Answer 7

Below code for Swift version :
let redColor = UIColor.redColor()
self.tableView.layer.borderColor = redColor.colorWithAlphaComponent(0.9).CGColor
self.tableView.layer.borderWidth = 1;
self.tableView.layer.cornerRadius = 4;
Make sure that you have import QuartzCore in import section.

Answer 8

Here is swift extension:
extension UITableView {
public var cornerRadius: CGFloat {
get {
return layer.cornerRadius
}
set {
layer.cornerRadius = newValue
layer.masksToBounds = true
}
}
}
Used by this way
tableView.cornerRadius = 7.5

Answer 9

UITableViewStyleInsetGrouped
A table view where the grouped sections are inset with rounded corners.
example code:
self.tableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStyleInsetGrouped];
looks like:
Settings looking table view sections