如何向多个按钮添加手势识别器？

发布于 2024-12-09 08:49:30 字数 1013 浏览 0 评论 0原文

你好，我正在尝试向“UIButton”添加手势识别器。当我这样做时：

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[self.LeftBottomSpaceBtn addGestureRecognizer:singleTap];
[singleTap requireGestureRecognizerToFail:doubleTap];
[singleTap release];

它工作正常，但是当我尝试将此手势添加到多个按钮时，它不起作用：

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[self.LeftBottomSpaceBtn addGestureRecognizer:singleTap];
[self.LeftUpSpaceBtn addGestureRecognizer:singleTap];
[self.RightBUpSpaceBtn addGestureRecognizer:singleTap];
[self.LeftReturnBtn addGestureRecognizer:singleTap];
[self.RightReturnBtn addGestureRecognizer:singleTap];
[self.DeleteBtn addGestureRecognizer:singleTap];
[self.CapsBtn addGestureRecognizer:singleTap];
[singleTap requireGestureRecognizerToFail:doubleTap];
[singleTap release];

那么如何以与添加“longPress”相同的方式将相同的手势添加到多个按钮“双击”？

原文

Hi, I am trying to add gesture recognizers to 'UIButton'. When I do it like this:

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[self.LeftBottomSpaceBtn addGestureRecognizer:singleTap];
[singleTap requireGestureRecognizerToFail:doubleTap];
[singleTap release];

It works properly, but when I tried to add this gesture to multiple buttons it did not work:

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[self.LeftBottomSpaceBtn addGestureRecognizer:singleTap];
[self.LeftUpSpaceBtn addGestureRecognizer:singleTap];
[self.RightBUpSpaceBtn addGestureRecognizer:singleTap];
[self.LeftReturnBtn addGestureRecognizer:singleTap];
[self.RightReturnBtn addGestureRecognizer:singleTap];
[self.DeleteBtn addGestureRecognizer:singleTap];
[self.CapsBtn addGestureRecognizer:singleTap];
[singleTap requireGestureRecognizerToFail:doubleTap];
[singleTap release];

So how can I add the same gesture to multiple buttons in the same way I have added the 'longPress' and 'doubleTap'?

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怪我入戏太深 2024-12-16 08:49:30

我建议如下：

NSMutableSet *buttons = [[NSMutableSet alloc] init];

[buttons addObject: self.LeftBottomSpaceBtn];
[buttons addObject: self.LeftUpSpaceBtn];
[buttons addObject: self.RightBUpSpaceBtn];
[buttons addObject: self.LeftReturnBtn];
[buttons addObject: self.RightReturnBtn];
[buttons addObject: self.DeleteBtn];
[buttons addObject: self.CapsBtn];

for(UIButton *button in buttons)
{
    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
    [button addGestureRecognizer:singleTap];
    [singleTap requireGestureRecognizerToFail:doubleTap];
    [singleTap release];
}

如果将集合保存为变量，则还可以对所有按钮执行其他操作，例如释放所有按钮并更改所有背景颜色，而无需单独调用它们。

您可能还需要为每个按钮制作单独的 doubletaprecognizer。

I'd suggest the following:

NSMutableSet *buttons = [[NSMutableSet alloc] init];

[buttons addObject: self.LeftBottomSpaceBtn];
[buttons addObject: self.LeftUpSpaceBtn];
[buttons addObject: self.RightBUpSpaceBtn];
[buttons addObject: self.LeftReturnBtn];
[buttons addObject: self.RightReturnBtn];
[buttons addObject: self.DeleteBtn];
[buttons addObject: self.CapsBtn];

for(UIButton *button in buttons)
{
    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
    [button addGestureRecognizer:singleTap];
    [singleTap requireGestureRecognizerToFail:doubleTap];
    [singleTap release];
}

If you save the set as a variable, you can do other stuff for all buttons as well, such as releasing them all and changing all their backgroundColors, without calling them all individually.

You will probably need to make seperate doubletaprecognizers for each button as well.

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