How to create a round button?

Question

I want to create a round circular button. This button should look like a circle.

This code gives round rectangular button.

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; button.frame     = CGRectMake(100, 100, 100, 30); UIImage  *image  = [UIImage imageNamed:@"01.png"]; [button setImage:image forState:UIControlStateNormal]; [image release]; 

I figured out how to create a rounded rectangular button but I want to create a round circle button. What do I need to change?

Answer 1

Tested Code:

.h

 #import <QuartzCore/QuartzCore.h>  -(void)roundButtonDidTap:(UIButton*)tappedButton; 

.m

#define ROUND_BUTTON_WIDTH_HEIGHT YourButtonWidthToBeSetHere  -(void)roundButtonDidTap:(UIButton*)tappedButton{      NSLog(@"roundButtonDidTap Method Called");  }    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];  [button setImage:[UIImage imageNamed:@"TimoonPumba.png"] forState:UIControlStateNormal];  [button addTarget:self action:@selector(roundButtonDidTap:) forControlEvents:UIControlEventTouchUpInside];  //width and height should be same value button.frame = CGRectMake(0, 0, ROUND_BUTTON_WIDTH_HEIGHT, ROUND_BUTTON_WIDTH_HEIGHT);  //Clip/Clear the other pieces whichever outside the rounded corner button.clipsToBounds = YES;  //half of the width button.layer.cornerRadius = ROUND_BUTTON_WIDTH_HEIGHT/2.0f; button.layer.borderColor=[UIColor redColor].CGColor; button.layer.borderWidth=2.0f;  [self.view addSubview:button]; 

Result

Geometry in this concept