ios UIButton事件处理

创建一个button 并添加对象

[code]//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

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

事件 带参数

[code] [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);
}

[code]//
//  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 buttonWithT
4000
ype: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

[code]//
//  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