UIButton的基本用法和事件
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//// 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
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