APRoundedButton
https://github.com/elpsk/APRoundedButton
效果:
源码:
APRoundedButton.h
//
// Created by Alberto Pasca on 27/02/14.
// Copyright (c) 2014 albertopasca.it. All rights reserved.
//
#import <UIKit/UIKit.h>
@interface APRoundedButton : UIButton
@property (nonatomic, assign) int style;
@endAPRoundedButton.m
//
// Created by Alberto Pasca on 27/02/14.
// Copyright (c) 2014 albertopasca.it. All rights reserved.
//
#import "APRoundedButton.h"
#import <QuartzCore/QuartzCore.h>
@implementation APRoundedButton
- (void)awakeFromNib
{
[super awakeFromNib];
UIRectCorner corners;
switch ( self.style )
{
case 0:
corners = UIRectCornerBottomLeft;
break;
case 1:
corners = UIRectCornerBottomRight;
break;
case 2:
corners = UIRectCornerTopLeft;
break;
case 3:
corners = UIRectCornerTopRight;
break;
case 4:
corners = UIRectCornerBottomLeft | UIRectCornerBottomRight;
break;
case 5:
corners = UIRectCornerTopLeft | UIRectCornerTopRight;
break;
case 6:
corners = UIRectCornerBottomLeft | UIRectCornerTopLeft;
break;
case 7:
corners = UIRectCornerBottomRight | UIRectCornerTopRight;
break;
case 8:
corners = UIRectCornerBottomRight | UIRectCornerTopRight | UIRectCornerTopLeft;
break;
case 9:
corners = UIRectCornerBottomRight | UIRectCornerTopRight | UIRectCornerBottomLeft;
break;
default:
corners = UIRectCornerAllCorners;
break;
}
UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds
byRoundingCorners:corners
cornerRadii:CGSizeMake(20.0, 30.0)];
CAShapeLayer *maskLayer = [CAShapeLayer layer];
maskLayer.frame = self.bounds;
maskLayer.path = maskPath.CGPath;
self.layer.mask = maskLayer;
}
@end核心的地方:
贝塞尔曲线(矩形带圆角的那种) + CAShapeLayer + layer.mask = 上述结果
