OC开发_Storyboard——绘制和视图

 1 //
 2 //  ModelView.m
 3 //  testForRouteAngle
 4 //
 5 //  Created by bos on 15-4-16.
 6 //  Copyright (c) 2015年 axiba. All rights reserved.
 7 //
 8 
 9 #import "ModelView.h"
10 
11 @implementation ModelView
12 
13 #define HEIGHT 180.0  //高度的标准值
14 #define RADIOS 12.0  //半径
15 
16 -(CGFloat)cornerScaleFactor {return  self.bounds.size.height/HEIGHT;}
17 -(CGFloat)cornerRadius{ return RADIOS *[self cornerScaleFactor];}
18 -(CGFloat)cornerOffset{ return  [self cornerRadius] / 3.0;}
19 
20 -(void)drawRect:(CGRect)rect
21 {
22     //所绘制范围的坐标系
23     //cornerRadius ：圆角矩形的圆角的半径有多少个点
24     UIBezierPath *roundrect = [UIBezierPath bezierPathWithRoundedRect:self.bounds cornerRadius:[self cornerRadius]];
25     
26     //裁剪
27     [roundrect addClip];
28     
29     //填充色
30     [[UIColor whiteColor] setFill];
31     UIRectFill(self.bounds);
32     
33     //**边缘添加一圈黑色边框**//
34     
35     //设置描边颜色
36     [[UIColor blackColor]setStroke];
37     //让roundrect也就是被塞尔路径描边
38     [roundrect stroke];
39 }
40 
41 #pragma  storyBoard 中需要用 awake来唤醒加载，不用alloc／init
42 -(void)awakeFromNib
43 {
44     self.backgroundColor = nil;
45     self.opaque = NO;
46     
47     //如果bounds变化来，就调用drawrect
48     self.contentMode = UIViewContentModeRedraw;
49 }
50 
51 
52 /*
53 // Only override drawRect: if you perform custom drawing.
54 // An empty implementation adversely affects performance during animation.
55 - (void)drawRect:(CGRect)rect {
56     // Drawing code
57 }
58 */
59 
60 @end