自定义UIButton

 1     //打开 ButtonViewController.m 文件:   
 2        
 3     - (void)viewDidLoad {  
 4               
 5             [super viewDidLoad];  
 6               
 7         //创建按钮  
 8              UIButton *sampleButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];  
 9           
10        
11         //设置按钮位置  
12              [sampleButton setFrame:CGRectMake(10, 100, self.view.bounds.size.width- 20, 52)];  
13               
14         //定义按钮标题  
15              [sampleButton setTitle:@"Button Title" forState:UIControlStateNormal];  
16               
17         //定义按钮标题字体格式  
18              [sampleButton.titleLabel setFont:[UIFont boldSystemFontOfSize:20]];  
19               
20         //定义按钮背景图片，redButton.png已经存在，拖放添加图片文件到image项目文件夹中  
21              [sampleButton setBackgroundImage:[[UIImage imageNamed:@"redButton.png"]stretchableImageWithLeftCapWidth:0.0 topCapHeight:0.0] forState:UIControlStateNormal];  
22               
23         //添加点击按钮所执行的程式  
24              [sampleButton addTarget:self action:@selector(buttonClicked)forControlEvents:UIControlEventTouchUpInside];  
25               
26        //在 View 中加入按钮  
27              [self.viewaddSubview:sampleButton];  
28               
29        
30     }  
31        
32     //  
33        
34     -(void) buttonClicked {  
35                        
36     }