YYXC_Student/jiaPei/APRoundedButton.m

//
//  APRoundedButton.m
//  jiaPei
//
//  Created by EchoShacolee on 2018/6/14.
//  Copyright © 2018年 JCZ. All rights reserved.
//

#import "APRoundedButton.h"

@interface APRoundedButton()
{
    UIBezierPath *maskPath;
}
@end

@implementation APRoundedButton

- (void)makeCorner {
    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;
        case 10:
            corners = -1;
            break;
        case 11:
            corners = -2;
            break;
        default:
            corners = UIRectCornerAllCorners;
            break;
    }
    
    
    if (corners == -1) {
        maskPath = [UIBezierPath bezierPathWithArcCenter:CGPointMake(self.bounds.size.width/2, self.bounds.size.height) radius:self.bounds.size.height-_nj_cornerRaduous startAngle:0 endAngle:M_PI clockwise:NO];
        self.titleLabel.y += _nj_cornerRaduous;
    }else if (corners == -2) {
        maskPath = [UIBezierPath bezierPathWithArcCenter:CGPointMake(self.bounds.size.width/2, 0) radius:self.bounds.size.height-_nj_cornerRaduous startAngle:M_PI endAngle:2*M_PI clockwise:NO];
        self.titleLabel.y -= _nj_cornerRaduous;
    }else{
        _nj_cornerRaduous = _nj_cornerRaduous ?: 10.0;
        maskPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds
                                                       byRoundingCorners:corners
                                                             cornerRadii:CGSizeMake(_nj_cornerRaduous, _nj_cornerRaduous)];
    }
    
    
    
    CAShapeLayer *maskLayer = [CAShapeLayer layer];
    maskLayer.frame         = self.bounds;
    maskLayer.path          = maskPath.CGPath;
    self.layer.mask         = maskLayer;
    [self.layer setMasksToBounds:YES];
}

- (instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        [self setupUIOnce];
    }
    return self;
}

- (instancetype)initWithCoder:(NSCoder *)coder
{
    self = [super initWithCoder:coder];
    if (self) {
        [self setupUIOnce];
    }
    return self;
}


- (void)setupUIOnce
{
    [self makeCorner];
}

- (void)layoutSubviews {
    [super layoutSubviews];
    [self makeCorner];
}

- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event{
    
    BOOL res = [super pointInside:point withEvent:event];
    if (res) {
        
        if ([maskPath containsPoint:point]) {
            return YES;
        }
    }
    return  NO;
}


@end