iOS开发UI篇—Quartz2D(自定义UIImageView控件)

//
//  YYViewController.m
//  02-自定义UIimageview
//
//  Created by apple on 14-6-22.
//  Copyright (c) 2014年 itcase. All rights reserved.
//

#import "YYViewController.h"

@interface YYViewController ()

@end

@implementation YYViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    //系统的UIImageview的使用
//    1.创建一个UIImageView
    UIImageView *iv=[[UIImageView alloc]init];
//    2.设置图片
    iv.image=[UIImage imageNamed:@"me"];
//    3.设置frame
    iv.frame=CGRectMake(100, 100, 100, 100);
//    4.把创建的自定义的view添加到界面上
    [self.view addSubview:iv];
}
@end

 1 //
 2 //  YYimageView.h
 3 //  02-自定义UIimageview
 4 //
 5 //  Created by apple on 14-6-22.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import <UIKit/UIKit.h>
10 
11 @interface YYimageView : UIView
12 @property(nonatomic,strong)UIImage *image;
13 @end

 1 //
 2 //  YYimageView.m
 3 //  02-自定义UIimageview
 4 //
 5 //  Created by apple on 14-6-22.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYimageView.h"
10 
11 @implementation YYimageView
12 
13 //重写drawRect:方法
14 - (void)drawRect:(CGRect)rect
15 {
16     [self.image drawInRect:rect];
17 }
18 
19 @end

 1 //
 2 //  YYViewController.m
 3 //  02-自定义UIimageview
 4 //
 5 //  Created by apple on 14-6-22.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYViewController.h"
10 #import "YYimageView.h"
11 
12 @interface YYViewController ()
13 
14 @end
15 
16 @implementation YYViewController
17 
18 - (void)viewDidLoad
19 {
20     [super viewDidLoad];
21     
22 //    //系统的UIImageview的使用
23 ////    1.创建一个UIImageView
24 //    UIImageView *iv=[[UIImageView alloc]init];
25 ////    2.设置图片
26 //    iv.image=[UIImage imageNamed:@"me"];
27 ////    3.设置frame
28 //    iv.frame=CGRectMake(100, 100, 100, 100);
29 ////    4.把创建的自定义的view添加到界面上
30 //    [self.view addSubview:iv];
31     
32     
33     //自定义UIImageView
34     //1.创建
35     //2.设置图片
36     //3.设置frame
37     //4.把创建的自定义的view添加到界面上
38     YYimageView *yyiv=[[YYimageView alloc]init];
39     yyiv.image=[UIImage imageNamed:@"me"];
40     yyiv.frame=CGRectMake(100, 100, 100, 100);
41     [self.view addSubview:yyiv];
42 
43 }
44 @end

 1 //
 2 //  YYViewController.m
 3 //  02-自定义UIimageview
 4 //
 5 //  Created by apple on 14-6-22.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYViewController.h"
10 #import "YYimageView.h"
11 
12 @interface YYViewController ()
13 @property(nonatomic,strong)UIImageView *imageView;
14 @end
15 
16 @implementation YYViewController
17 
18 - (void)viewDidLoad
19 {
20     [super viewDidLoad];
21     
22     //系统的UIImageview的使用
23 //    1.创建一个UIImageView
24     UIImageView *iv=[[UIImageView alloc]init];
25 //    2.设置图片
26     iv.image=[UIImage imageNamed:@"me"];
27 //    3.设置frame
28     iv.frame=CGRectMake(100, 100, 100, 100);
29 //    4.把创建的自定义的view添加到界面上
30     [self.view addSubview:iv];
31     self.imageView=iv;
32     
33     
34     //自定义UIImageView
35     //1.创建
36     //2.设置图片
37     //3.设置frame
38     //4.把创建的自定义的view添加到界面上
39 //    YYimageView *yyiv=[[YYimageView alloc]init];
40 //    yyiv.image=[UIImage imageNamed:@"me"];
41 //    yyiv.frame=CGRectMake(100, 100, 100, 100);
42 //    [self.view addSubview:yyiv];
43     
44     //添加一个button按钮，当点击button按钮的时候，切换图片
45     UIButton *btn=[[UIButton alloc]initWithFrame:CGRectMake(100, 300, 100, 50)];
46     [btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
47     [btn setTitle:@"点击切换" forState:UIControlStateNormal];
48     [btn addTarget:self action:@selector(btnClick) forControlEvents:UIControlEventTouchUpInside];
49     [self.view addSubview:btn];
50 
51 }
52 
53 -(void)btnClick
54 {
55     UIImage *image=[UIImage imageNamed:@"psb.jpeg"];
56     self.imageView.image=image;
57 }
58 @end

 1 //
 2 //  YYViewController.m
 3 //  02-自定义UIimageview
 4 //
 5 //  Created by apple on 14-6-22.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYViewController.h"
10 #import "YYimageView.h"
11 
12 @interface YYViewController ()
13 @property(nonatomic,strong)UIImageView *imageView;
14 @property(nonatomic,strong)YYimageView *yyimageView;
15 @end
16 
17 @implementation YYViewController
18 
19 - (void)viewDidLoad
20 {
21     [super viewDidLoad];
22     
23 //    //系统的UIImageview的使用
24 ////    1.创建一个UIImageView
25 //    UIImageView *iv=[[UIImageView alloc]init];
26 ////    2.设置图片
27 //    iv.image=[UIImage imageNamed:@"me"];
28 ////    3.设置frame
29 //    iv.frame=CGRectMake(100, 100, 100, 100);
30 ////    4.把创建的自定义的view添加到界面上
31 //    [self.view addSubview:iv];
32 //    self.imageView=iv;
33     
34     
35     //自定义UIImageView
36     //1.创建
37     //2.设置图片
38     //3.设置frame
39     //4.把创建的自定义的view添加到界面上
40     YYimageView *yyiv=[[YYimageView alloc]init];
41     yyiv.image=[UIImage imageNamed:@"me"];
42     yyiv.frame=CGRectMake(100, 100, 100, 100);
43     [self.view addSubview:yyiv];
44     self.yyimageView=yyiv;
45     
46     //添加一个button按钮，当点击button按钮的时候，切换图片
47     UIButton *btn=[[UIButton alloc]initWithFrame:CGRectMake(100, 300, 100, 50)];
48     [btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
49     [btn setTitle:@"点击切换" forState:UIControlStateNormal];
50     [btn addTarget:self action:@selector(btnClick) forControlEvents:UIControlEventTouchUpInside];
51     [self.view addSubview:btn];
52 
53 }
54 
55 -(void)btnClick
56 {
57     NSLog(@"按钮被点击了");
58     UIImage *image=[UIImage imageNamed:@"psb.jpeg"];
59 //    self.imageView.image=image;
60     self.yyimageView.image=image;
61 }
62 @end

 1 //
 2 //  YYimageView.m
 3 //  02-自定义UIimageview
 4 //
 5 //  Created by apple on 14-6-22.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYimageView.h"
10 
11 @implementation YYimageView
12 
13 //重写drawRect:方法
14 - (void)drawRect:(CGRect)rect
15 {
16     [self.image drawInRect:rect];
17 }
18 
19 //重写set方法
20 -(void)setImage:(UIImage *)image
21 {
22     _image=image;
23     [self setNeedsDisplay];
24 }
25 @end