IOS开发（16）之UIButton控件

1 前言
UIButton为按钮控件，在IOS开发中十分常见，可以为其设置事件。

2 代码实例
ZYViewController.m：

[plain]
@synthesize myButton;

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.view.backgroundColor = [UIColor whiteColor];
    myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];//设置按钮样式为圆角矩形
    myButton.frame = CGRectMake(110.0f, 200.0f, 100.0f, 37.0f);
    [myButton setTitle:@"Press Me" forState:UIControlStateNormal];//按下按钮时候的标题
    [myButton setTitle:@"I'm Pressed" forState:UIControlStateHighlighted];//按下按钮后抬手时候的标题
    [myButton addTarget:self action:@selector(buttonIsPressed:) forControlEvents:UIControlEventTouchDown];//按下按钮触发事件
    [myButton addTarget:self action:@selector(buttonIsTapped:) forControlEvents:UIControlEventTouchUpInside];//按下按钮后抬手时候触发事件
    [self.view addSubview:myButton];
}

-(void)buttonIsPressed:(UIButton *)paramSender{
    NSLog(@"Button is pressed");
}

-(void)buttonIsTapped:(UIButton *)paramSender{
    NSLog(@"Button is tapped");
}

@synthesize myButton;

- (void)viewDidLoad
{
    [super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
    self.view.backgroundColor = [UIColor whiteColor];
    myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];//设置按钮样式为圆角矩形
    myButton.frame = CGRectMake(110.0f, 200.0f, 100.0f, 37.0f);
    [myButton setTitle:@"Press Me" forState:UIControlStateNormal];//按下按钮时候的标题
    [myButton setTitle:@"I'm Pressed" forState:UIControlStateHighlighted];//按下按钮后抬手时候的标题
    [myButton addTarget:self action:@selector(buttonIsPressed:) forControlEvents:UIControlEventTouchDown];//按下按钮触发事件
    [myButton addTarget:self action:@selector(buttonIsTapped:) forControlEvents:UIControlEventTouchUpInside];//按下按钮后抬手时候触发事件
    [self.view addSubview:myButton];
}

-(void)buttonIsPressed:(UIButton *)paramSender{
NSLog(@"Button is pressed");
}

-(void)buttonIsTapped:(UIButton *)paramSender{
NSLog(@"Button is tapped");
}
运行结果：

点击按钮时候：

补充：移动开发 , IOS ,