ios – 如何记录UIControlEvents？

概述我试图弄清楚如何记录UIControlEvents,以便我可以确切地看到我想要添加到我的UIButton的那些. 我似乎无法弄明白.这是我到目前为止所尝试的： [button addTarget:self action:@selector(buttonTouched:forEvent:) forControlEvents:UIControlEventAllEvents];-(void)but 我试图弄清楚如何记录UIControlEvents,以便我可以确切地看到我想要添加到我的UIbutton的那些.

我似乎无法弄明白.这是我到目前为止所尝试的：

[button addTarget:self action:@selector(buttontouched:forEvent:) forControlEvents:UIControlEventAllEvents];-(voID)buttontouched:(UIbutton *)button forEvent:(UIControlEvents)event{NSLog(@"%s",__PRETTY_FUNCTION__);switch (event) {    case UIControlEventtouchDown:        NSLog(@"UIControlEventtouchDown");        break;    case UIControlEventtouchDownRepeat:        NSLog(@"UIControlEventtouchDownRepeat");        break;    case UIControlEventtouchDragInsIDe:        NSLog(@"UIControlEventtouchDragInsIDe");        break;    case UIControlEventtouchDragOutsIDe:        NSLog(@"UIControlEventtouchDragOutsIDe");        break;    case UIControlEventtouchdragenter:        NSLog(@"UIControlEventtouchdragenter");        break;    case UIControlEventtouchDragExit:        NSLog(@"UIControlEventtouchDragExit");        break;    case UIControlEventtouchUpInsIDe:        NSLog(@"UIControlEventtouchUpInsIDe");        break;    case UIControlEventtouchUpOutsIDe:        NSLog(@"UIControlEventtouchUpOutsIDe");        break;    case UIControlEventtouchCancel:        NSLog(@"UIControlEventtouchCancel");        break;    case UIControlEventValueChanged:        NSLog(@"UIControlEventValueChanged");    default:        break;}}

打印的唯一日志是__PRETTY_FUNCTION__日志.我也试过这个,以防switch语句出现问题：

if (event == UIControlEventtouchDown) {    NSLog(@"UIControlEventtouchDown");}if (event == UIControlEventtouchDownRepeat){    NSLog(@"UIControlEventtouchDownRepeat");}etc...

仍然没有记录.我究竟做错了什么？

编辑：我通过更改添加到按钮的事件进行了进一步的实验,如下所示：

[button addTarget:self action:@selector(buttontouched:forEvent:) forControlEvents:UIControlEventtouchDown];

然后我非常具体地记录了输入：

-(voID)buttontouched:(UIbutton *)button forEvent:(UIControlEvents)event{    NSLog(@"UIControlEventtouchDown = %i",UIControlEventtouchDown);    NSLog(@"event = %i",event);}

这是输出：

UIControlEventtouchDown = 1event = 350486320

有谁知道发生了什么事？

编辑2：感谢TAKeanice,我现在意识到我没有正确地编写选择器.我不确定事件的日志是什么打印出来的,但是当我基本上将UIEvent转换为枚举类型(UIControlEvents)时,它仍然在日志中给出一个值.
无论如何,在我看来,仍然有办法找出UIControlEvents是什么,但我无法从文档中看到.
但是,Apple在UIControl文档中提到了它：

Subclassing Notes
You may want to extend a UIControl subclass for either of two reasons:

To observe or modify the dispatch of action messages to targets for
particular events To do this,overrIDe sendAction:to:forEvent:,
evaluate the passed-in selector,target object,or UIControlEvents bit
mask,and proceed as required.

To provIDe custom tracking behavior (for example,to change the
highlight appearance) To do this,overrIDe one or all of the following
methods: beginTrackingWithtouch:withEvent:,
continueTrackingWithtouch:withEvent:,endTrackingWithtouch:withEvent:

当为sendAction：to：forEvent：传入的参数是UIEvent时,如何评估UIControlEvents位掩码？
有任何想法吗？

解决方法 试试这个：

// somewhere[self.btn addTarget:self action:@selector(buttontouched:forEvent:) forControlEvents:UIControlEventAllEvents];- (voID)buttontouched:(UIbutton*)sender forEvent:(ID)event {    NSSet *touches = [event alltouches];    UItouch *touch = [touches anyObject];    UItouchPhase phase = touch.phase;}

更新：
你将获得接触,然后在最后一次触摸中你会有阶段,这表明这是什么事件

说明：

从触摸的位置和阶段,您将能够计算事件：

> UItouchPhaseEnded触摸位置在bounds =>范围内UItouchUpInsIDe> UItouchPhaseEnded触摸位置超出边界=> UItouchUpOutsIDe> ……

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