Question

所以我有一个IBAction连接到IB中的多个按钮我希望在调用另一个IBAction时触发此操作我还希望它将第二个操作中的int识别为[sender tag]。

// viewController.m

-(IBAction)buttonPress {

 int getInter  = [sender tag]; 
 UIView *tmpView = [self.view viewWithTag:getInter];
 NSString *title = [(UIButton *)sender currentTitle]; 

}

然后我有另一个需要调用buttonPress的动作。

 -(IBAction)secondButtonPress {
  int varInt = 1
  [self buttonPress: nil] <--- How do I pass varInt that buttonPress would recognise as a sender Tag here?

 }

我意识到我可以像这样创建按钮并在secondButtonPress中复制代码，但这似乎很麻烦......

 UIButton *tmpButton2 = (UIButton *)[self.view viewWithTag:varInt];

所以问题是，有没有办法欺骗buttonPress认为它已被按下并传递一个变量作为该动作的发送者标签。在某种程度上以编程方式欺骗buttonPress认为它已被按下。

提前谢谢。

Answer 1

我最终将它连接到相同的IBAction并运行if语句，以便在调用该标记时执行某些操作。

现在看似简单！

-(IBAction)buttonPress {

 int getInter  = [sender tag]; 

   if ([sender tag] == 2) {
    //Do something just for that button.
   }

   else
   {
    UIView *tmpView = [self.view viewWithTag:getInter];
    NSString *title = [(UIButton *)sender currentTitle]; 
   }
}

Answer 2

UIButton *btn1 = [[UIButton alloc] initWithFrame:CGRectMake(10, 10, 20, 20)];
[btn1 setTitle:@"Button 1" forState:UIControlStateNormal];
btn1.tag = 1;
[btn1 addTarget:self action:@selector(buttonClick:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn1];

UIButton *btn2 = [[UIButton alloc] initWithFrame:CGRectMake(10, 50, 20, 20)];
[btn2 setTitle:@"Button 2" forState:UIControlStateNormal];
btn2.tag = 2;
[btn2 addTarget:self action:@selector(buttonClick:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn2];

UIButton *btn3 = [[UIButton alloc] initWithFrame:CGRectMake(10, 90, 20, 20)];
[btn3 setTitle:@"Button 3" forState:UIControlStateNormal];
btn3.tag = 3;
[btn3 addTarget:self action:@selector(buttonClick:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn3];

按钮点击方法如下，并在其中获取按钮标记..

-(IBAction)buttonClick:(id)sender {
    UIButton *btn = (UIButton *) sender;
    NSLog(@"%d",btn.tag);
}

Answer 3

只需在initWithNibName方法中设置标记即可。按照示例查看它是否对您有帮助!!

@property(nonatomic,strong)IBOutlet UIButton *btn1;
@property(nonatomic,strong)IBOutlet UIButton *btn2;


- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {

       // Set the Tag
        self.btn1.tag=1;
        self.btn1.tag=2;

    }
    return self;
}

-(IBAction)selectedButtonClick:(id)sender {
    UIButton *btn = (UIButton *) sender;
    NSLog(@"selectedButton%d",btn.tag);
}

在代码中调用IBAction并通过它发送标记

3 个答案: