iOS子类化UIControl没有响应

Posted 2023-03-10

【中文标题】iOS子类化UIControl没有响应

【英文标题】：iOS subclassing UIControl not responding

【发布时间】：2012-04-17 05:21:40

【问题描述】：

我正在做一个子类化 uiControl 的测试，但它还没有工作，

这是我的代码：

MainVC.m::

- (void)viewDidLoad

    [super viewDidLoad];

    TesteaContol *tt = [[[TesteaContol alloc]initWithFrame:CGRectMake(20, 20, 80, 30)]autorelease];
    [tt addTarget:self action:@selector(ttActiono:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:tt];


- (void)ttActiono:(TesteaContol*)message

    NSLog(@"proyection");

TesteaContol.h

@interface TesteaContol : UIControl

TesteaControl.m

#import "TesteaContol.h"

    @implementation TesteaContol

    - (id)initWithFrame:(CGRect)frame
    
        self = [super initWithFrame:frame];
        if (self) 
            // Initialization code

            NSLog(@"cao");

            UIButton *vacas = [UIButton buttonWithType:UIButtonTypeRoundedRect];
            [vacas setTitle:@"pingus" forState:UIControlStateNormal];   ;
            vacas.titleLabel.textColor = [UIColor blackColor];

            vacas.frame = CGRectMake(0, 0, 80, 40);
            [vacas addTarget:self action:@selector(vacasPressed:) forControlEvents:UIControlStateNormal];

            [self addSubview:vacas];
        
        return self;
    


    - (void) vacasPressed:(id) sender
    
        NSLog(@"vacanio");

        [self sendActionsForControlEvents:UIControlEventTouchUpInside];

    

所以我正在使用 uiButton 进行测试，我看到了按钮，但没有响应触摸，

我错过了什么？

谢谢！

【参考方案1】：

这里有问题：

[vacas addTarget:self action:@selector(vacasPressed:) 
    forControlEvents:UIControlStateNormal];

“forControlEvents”部分应该是 UIControlEvents 类型，而 UIControlStateNormal 不是。对于常规按钮，您希望将 UIControlStateNormal 替换为 UIControlEventTouchUpInside：

[vacas addTarget:self action:@selector(vacasPressed:)
    forControlEvents:UIControlEventTouchUpInside];