UIButton的基本用法和事件

//
//  MyViewController.m
//  Demo3UIButton
//
//  Created by spare on 16/4/8.
//  Copyright © 2016年 spare. All rights reserved.
//

#import "MyViewController.h"

@interface MyViewController ()

@end

@implementation MyViewController

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
UIButton *button=[UIButton buttonWithType:UIButtonTypeCustom];

button.frame=CGRectMake(20, 20, 200, 40);
// button.backgroundColor=[UIColor lightGrayColor];

[button setTitle:@"按键" forState:UIControlStateNormal];

[button setTitle:@"高亮" forState:UIControlStateHighlighted];
[button setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted];
//设置button的图片，设置Button的背景图片
[button setImage:[UIImage imageNamed:@"Play-btn"] forState:UIControlStateNormal];

[button setImage:[UIImage imageNamed:@"stop"] forState:UIControlStateHighlighted];

[button setBackgroundImage:[UIImage imageNamed:@"BTN"] forState:(UIControlStateNormal)];
//设置按钮高亮照片
[button setBackgroundImage:[UIImage imageNamed:@"BTN2"] forState:(UIControlStateHighlighted)];
//设置按钮失效照片
[button setBackgroundImage:[UIImage imageNamed:@"disable"] forState:(UIControlStateDisabled)];
//设置按钮暂停照片
[button setBackgroundImage:[UIImage imageNamed:@"stop"] forState:(UIControlStateSelected)];

//button.enabled=NO;

[button addTarget:self action:@selector(buttonClick:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button];
}
//事件方法的参数通常都是触发这个事件对象的类型
//事件方法的参数就是触发事件的对象
-(void)buttonClick:(UIButton *)sender{
CGRect frame=sender.frame;
frame.size.height=80;
sender.frame=frame;

[sender setTitle:@"按键………………" forState:UIControlStateNormal];

}

- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/

@end