ios UIButton事件处理

创建一个button 并添加对象

//创建一个圆角button
    UIButton*btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    btn.frame=CGRectMake(100, 100, 80, 40);
    [btn setTitle:@"按钮" forState:UIControlStateNormal];
    
    //向按钮添加事件
    //p1 addTarget谁来实现这个事件函数
    //p2 @selector(pressBtn)
    //p3 事件类型 forControlEvents  UIControlEventTouchUpInside  事件处理函数类型
    //UIControlEventTouchUpInside 点击按钮弹起事件
    //UIControlEventTouchDown 当我们的手指触碰到屏幕上时
    [btn addTarget:self action:@selector(pressBtn) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:btn];

事件实现方法

-(void)pressBtn
{
    NSLog(@"12454");
}

事件带参数

 [btn addTarget:self action:@selector(pressBtn:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:btn];

实现的方法
//带参数函数  参数为按钮本身
-(void)pressBtn:(UIButton*)btn
{
    NSLog(@"%@",btn);
}

//
//  ViewController.m
//  les11
//
//  Created by 易飞 on 2019/3/26.
//  Copyright © 2019 yifei. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
//创建ui控件
-(void)createRectButton
{
    //创建一个btn对象,根据类型来创建btn
    //btn类型圆角类型 btn  UIButtonTypeRoundedRect
    //通过类方法来创建  l内存自己管理
    
    
    UIButton* btn =[UIButton buttonWithType:UIButtonTypeRoundedRect];
    //设置btn的位置
    btn.frame =CGRectMake(100, 100, 100, 40);
    //设置按钮的文字内容
    //@parameter
    //p1:字符串类型,显示到按钮上的文字
    //p2 设置文字显示的状态类型  UIControlStateNormal 正常状态  UIControlStateHighlighted 高亮状态
    
    [btn setTitle:@"按钮01" forState:UIControlStateNormal];
    [btn setTitle:@"按钮按下" forState:UIControlStateHighlighted];
    
    btn.backgroundColor = [UIColor grayColor]; //背景颜色
    //设置文字颜色  正常状态下的颜色 p1 颜色 p2状态
    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor grayColor] forState:UIControlStateHighlighted];
    //设置按钮的风格颜色 优先级比setTitleColor 低
    [btn setTintColor:[UIColor whiteColor]];
    
    //UILable控件
    btn.titleLabel.font = [UIFont systemFontOfSize:30];//设置btn的文字大小
    [self.view addSubview:btn];//添加到视图
    
}
-(void)createImageButton
{
    //创建一个自定义类型的button UIButtonTypeCustom
    UIButton*btnImage = [UIButton buttonWithType:UIButtonTypeCustom];
    btnImage.frame= CGRectMake(100, 200, 100, 100);
    UIImage*icon01 =[UIImage imageNamed:@"btn01"];
    UIImage*icon02 = [UIImage imageNamed:@"btn02"];
    [btnImage setImage:icon01 forState:UIControlStateNormal];
    [btnImage setImage:icon02 forState:UIControlStateHighlighted];
    [self.view addSubview:btnImage];
}
-(void)createButton
{
    //创建一个圆角button
    UIButton*btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    btn.frame=CGRectMake(100, 100, 80, 40);
    [btn setTitle:@"按钮" forState:UIControlStateNormal];
    
    //向按钮添加事件
    //p1 addTarget谁来实现这个事件函数
    //p2 @selector(pressBtn)
    //p3 事件类型 forControlEvents  UIControlEventTouchUpInside  事件处理函数类型
    //UIControlEventTouchUpInside 点击按钮弹起事件
    //UIControlEventTouchDown 当我们的手指触碰到屏幕上时
    [btn addTarget:self action:@selector(pressBtn:) forControlEvents:UIControlEventTouchUpInside];
    //触碰时调用事件函数
    [btn addTarget:self action:@selector(touhDown) forControlEvents:UIControlEventTouchDown];
    
    [self.view addSubview:btn];
    
    UIButton*btn02 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    btn02.frame= CGRectMake(100, 200, 80, 40);
    [btn02 setTitle:@"按钮02" forState:UIControlStateNormal];
    [btn02 addTarget:self action:@selector(pressBtn02) forControlEvents:UIControlEventTouchUpInside];
     [self.view addSubview:btn02];
    //设置按钮的标记值
    btn.tag = 101;
    btn.tag =102;
}

-(void)pressBtn02
{
    NSLog(@"bbbb");
}

-(void)touhDown
{
    NSLog(@"触碰");
}


//普通函数
-(void)pressBtn
{
    NSLog(@"12454");
}
//带参数函数
-(void)pressBtn:(UIButton*)btn
{
    NSLog(@"%@",btn);
}
- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self createButton];
    
}



@end

最终版

//
//  ViewController.m
//  les11
//
//  Created by 易飞 on 2019/3/26.
//  Copyright © 2019 yifei. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
//创建ui控件
-(void)createRectButton
{
    //创建一个btn对象,根据类型来创建btn
    //btn类型圆角类型 btn  UIButtonTypeRoundedRect
    //通过类方法来创建  l内存自己管理
    
    
    UIButton* btn =[UIButton buttonWithType:UIButtonTypeRoundedRect];
    //设置btn的位置
    btn.frame =CGRectMake(100, 100, 100, 40);
    //设置按钮的文字内容
    //@parameter
    //p1:字符串类型,显示到按钮上的文字
    //p2 设置文字显示的状态类型  UIControlStateNormal 正常状态  UIControlStateHighlighted 高亮状态
    
    [btn setTitle:@"按钮01" forState:UIControlStateNormal];
    [btn setTitle:@"按钮按下" forState:UIControlStateHighlighted];
    
    btn.backgroundColor = [UIColor grayColor]; //背景颜色
    //设置文字颜色  正常状态下的颜色 p1 颜色 p2状态
    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor grayColor] forState:UIControlStateHighlighted];
    //设置按钮的风格颜色 优先级比setTitleColor 低
    [btn setTintColor:[UIColor whiteColor]];
    
    //UILable控件
    btn.titleLabel.font = [UIFont systemFontOfSize:30];//设置btn的文字大小
    [self.view addSubview:btn];//添加到视图
    
}
-(void)createImageButton
{
    //创建一个自定义类型的button UIButtonTypeCustom
    UIButton*btnImage = [UIButton buttonWithType:UIButtonTypeCustom];
    btnImage.frame= CGRectMake(100, 200, 100, 100);
    UIImage*icon01 =[UIImage imageNamed:@"btn01"];
    UIImage*icon02 = [UIImage imageNamed:@"btn02"];
    [btnImage setImage:icon01 forState:UIControlStateNormal];
    [btnImage setImage:icon02 forState:UIControlStateHighlighted];
    [self.view addSubview:btnImage];
}
-(void)createButton
{
    //创建一个圆角button
    UIButton*btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    btn.frame=CGRectMake(100, 100, 80, 40);
    [btn setTitle:@"按钮" forState:UIControlStateNormal];
    
    //向按钮添加事件
    //p1 addTarget谁来实现这个事件函数
    //p2 @selector(pressBtn)
    //p3 事件类型 forControlEvents  UIControlEventTouchUpInside  事件处理函数类型
    //UIControlEventTouchUpInside 点击按钮弹起事件
    //UIControlEventTouchDown 当我们的手指触碰到屏幕上时
    [btn addTarget:self action:@selector(pressBtn:) forControlEvents:UIControlEventTouchUpInside];
    //触碰时调用事件函数
    [btn addTarget:self action:@selector(touhDown) forControlEvents:UIControlEventTouchDown];
    
    [self.view addSubview:btn];
    
    UIButton*btn02 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    btn02.frame= CGRectMake(100, 200, 80, 40);
    [btn02 setTitle:@"按钮02" forState:UIControlStateNormal];
    [btn02 addTarget:self action:@selector(pressBtn:) forControlEvents:UIControlEventTouchUpInside];
     [self.view addSubview:btn02];
    //设置按钮的标记值
    btn.tag = 101;
    btn.tag =102;
}

-(void)pressBtn02
{
    NSLog(@"bbbb");
}

-(void)touhDown
{
    NSLog(@"触碰");
}


//普通函数
-(void)pressBtn
{
    NSLog(@"12454");
}
//带参数函数
-(void)pressBtn:(UIButton*)btn
{
    NSLog(@"%@",btn);
    if(btn.tag==101){
        NSLog(@"现在是101");
    }else if(btn.tag==102){
        NSLog(@"现在是102");
    }
    
}
- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self createButton];
    
}



@end

ios UIButton事件处理

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