ios UIButton事件處理

建立一個button 并添加對象

//建立一個圓角button
    UIButton*btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    btn.frame=CGRectMake(100, 100, 80, 40);
    [btn setTitle:@"按鈕" forState:UIControlStateNormal];
    
    //向按鈕添加事件
    //p1 addTarget誰來實作這個事件函數
    //p2 @selector(pressBtn)
    //p3 事件類型 forControlEvents  UIControlEventTouchUpInside  事件處理函數類型
    //UIControlEventTouchUpInside 點選按鈕彈起事件
    //UIControlEventTouchDown 當我們的手指觸碰到螢幕上時
    [btn addTarget:self action:@selector(pressBtn) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:btn];

事件實作方法

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

事件帶參數

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

實作的方法
//帶參數函數  參數為按鈕本身
-(void)pressBtn:(UIButton*)btn
{
    NSLog(@"%@",btn);
}

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

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
//建立ui控件
-(void)createRectButton
{
    //建立一個btn對象,根據類型來建立btn
    //btn類型圓角類型 btn  UIButtonTypeRoundedRect
    //通過類方法來建立  l記憶體自己管理
    
    
    UIButton* btn =[UIButton buttonWithType:UIButtonTypeRoundedRect];
    //設定btn的位置
    btn.frame =CGRectMake(100, 100, 100, 40);
    //設定按鈕的文字内容
    //@parameter
    //p1:字元串類型,顯示到按鈕上的文字
    //p2 設定文字顯示的狀态類型  UIControlStateNormal 正常狀态  UIControlStateHighlighted 高亮狀态
    
    [btn setTitle:@"按鈕01" forState:UIControlStateNormal];
    [btn setTitle:@"按鈕按下" forState:UIControlStateHighlighted];
    
    btn.backgroundColor = [UIColor grayColor]; //背景顔色
    //設定文字顔色  正常狀态下的顔色 p1 顔色 p2狀态
    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor grayColor] forState:UIControlStateHighlighted];
    //設定按鈕的風格顔色 優先級比setTitleColor 低
    [btn setTintColor:[UIColor whiteColor]];
    
    //UILable控件
    btn.titleLabel.font = [UIFont systemFontOfSize:30];//設定btn的文字大小
    [self.view addSubview:btn];//添加到視圖
    
}
-(void)createImageButton
{
    //建立一個自定義類型的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
{
    //建立一個圓角button
    UIButton*btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    btn.frame=CGRectMake(100, 100, 80, 40);
    [btn setTitle:@"按鈕" forState:UIControlStateNormal];
    
    //向按鈕添加事件
    //p1 addTarget誰來實作這個事件函數
    //p2 @selector(pressBtn)
    //p3 事件類型 forControlEvents  UIControlEventTouchUpInside  事件處理函數類型
    //UIControlEventTouchUpInside 點選按鈕彈起事件
    //UIControlEventTouchDown 當我們的手指觸碰到螢幕上時
    [btn addTarget:self action:@selector(pressBtn:) forControlEvents:UIControlEventTouchUpInside];
    //觸碰時調用事件函數
    [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:@"按鈕02" forState:UIControlStateNormal];
    [btn02 addTarget:self action:@selector(pressBtn02) forControlEvents:UIControlEventTouchUpInside];
     [self.view addSubview:btn02];
    //設定按鈕的标記值
    btn.tag = 101;
    btn.tag =102;
}

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

-(void)touhDown
{
    NSLog(@"觸碰");
}


//普通函數
-(void)pressBtn
{
    NSLog(@"12454");
}
//帶參數函數
-(void)pressBtn:(UIButton*)btn
{
    NSLog(@"%@",btn);
}
- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self createButton];
    
}



@end

最終版

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

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
//建立ui控件
-(void)createRectButton
{
    //建立一個btn對象,根據類型來建立btn
    //btn類型圓角類型 btn  UIButtonTypeRoundedRect
    //通過類方法來建立  l記憶體自己管理
    
    
    UIButton* btn =[UIButton buttonWithType:UIButtonTypeRoundedRect];
    //設定btn的位置
    btn.frame =CGRectMake(100, 100, 100, 40);
    //設定按鈕的文字内容
    //@parameter
    //p1:字元串類型,顯示到按鈕上的文字
    //p2 設定文字顯示的狀态類型  UIControlStateNormal 正常狀态  UIControlStateHighlighted 高亮狀态
    
    [btn setTitle:@"按鈕01" forState:UIControlStateNormal];
    [btn setTitle:@"按鈕按下" forState:UIControlStateHighlighted];
    
    btn.backgroundColor = [UIColor grayColor]; //背景顔色
    //設定文字顔色  正常狀态下的顔色 p1 顔色 p2狀态
    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor grayColor] forState:UIControlStateHighlighted];
    //設定按鈕的風格顔色 優先級比setTitleColor 低
    [btn setTintColor:[UIColor whiteColor]];
    
    //UILable控件
    btn.titleLabel.font = [UIFont systemFontOfSize:30];//設定btn的文字大小
    [self.view addSubview:btn];//添加到視圖
    
}
-(void)createImageButton
{
    //建立一個自定義類型的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
{
    //建立一個圓角button
    UIButton*btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    btn.frame=CGRectMake(100, 100, 80, 40);
    [btn setTitle:@"按鈕" forState:UIControlStateNormal];
    
    //向按鈕添加事件
    //p1 addTarget誰來實作這個事件函數
    //p2 @selector(pressBtn)
    //p3 事件類型 forControlEvents  UIControlEventTouchUpInside  事件處理函數類型
    //UIControlEventTouchUpInside 點選按鈕彈起事件
    //UIControlEventTouchDown 當我們的手指觸碰到螢幕上時
    [btn addTarget:self action:@selector(pressBtn:) forControlEvents:UIControlEventTouchUpInside];
    //觸碰時調用事件函數
    [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:@"按鈕02" forState:UIControlStateNormal];
    [btn02 addTarget:self action:@selector(pressBtn:) forControlEvents:UIControlEventTouchUpInside];
     [self.view addSubview:btn02];
    //設定按鈕的标記值
    btn.tag = 101;
    btn.tag =102;
}

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

-(void)touhDown
{
    NSLog(@"觸碰");
}


//普通函數
-(void)pressBtn
{
    NSLog(@"12454");
}
//帶參數函數
-(void)pressBtn:(UIButton*)btn
{
    NSLog(@"%@",btn);
    if(btn.tag==101){
        NSLog(@"現在是101");
    }else if(btn.tag==102){
        NSLog(@"現在是102");
    }
    
}
- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self createButton];
    
}



@end

ios UIButton事件處理

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