UIButton

头文件

#import <UIKit/UIKit.h>

 

@interface ViewController : UIViewController

 

@property (nonatomic,strong) UIButton *myButton;

@end

 

实现

 

#import "ViewController.h"

 

@interfaceViewController ()

 

@end

 

@implementation ViewController

 

- (void) buttonIsPressed: (UIButton *) paramSender {

    NSLog(@"Button is pressed.");

}

 

- (void) buttonIsTapped: (UIButton *) paramSender {

    NSLog(@"Button is tapped.");

}

 

- (void)viewDidLoad

{

    [superviewDidLoad];

    

    UIImage *normalImage = [UIImage imageNamed:@"normalStateImage"];

    UIImage *higthLightImage = [UIImage imageNamed:@"higthLightStateImage"];

    self.myButton = [UIButtonbuttonWithType:UIButtonTypeCustom];  //必须在初始化时为UIButton设置一个type,想用图片时必须是这种type

    self.myButton.frame = CGRectMake(120.0f, 200.0f, 200.0f, 200.0f);

    [self.myButtonsetBackgroundImage:normalImage forState:UIControlStateNormal];

    [self.myButtonsetTitle:@"pressed me"forState:UIControlStateNormal];

    [self.myButtonsetBackgroundImage:higthLightImage forState:UIControlStateHighlighted];

    [self.myButtonsetTitle:@"I'm pressed"forState:UIControlStateHighlighted];

    [self.myButtonaddTarget:selfaction:@selector(buttonIsPressed:) forControlEvents:UIControlEventTouchDown];

    [self.myButtonaddTarget:selfaction:@selector(buttonIsTapped:) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:self.myButton];

}

 

- (void)didReceiveMemoryWarning

{

    [superdidReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

 

@end