Objective c 目标c：从视图/图像/按钮外部开始触摸时，检测触摸开始/下降

我有一个类似于键盘的东西（一个主视图，九个子视图）。触摸开始/向下可以在九个子视图中的任何一个子视图中开始。我检测触碰/开始，以了解用户何时将手指拖动到其他子视图（手指拖动到哪个视图），以及用户何时抬起手指/触碰/停止

（堆栈溢出不允许发布此问题。我将尝试粘贴答案部分的代码，看看是否有效）

-（void）所选语音：（CGPoint）位置{

int updatedSelectedVoiceNumber;

if(CGRectContainsPoint(self.voice0.frame, location)){
    updatedSelectedVoiceNumber=0;
    self.statusLabelOutlet.text = @"...";
}else if(CGRectContainsPoint(self.voice1.frame, location)){
    updatedSelectedVoiceNumber=1;
    self.statusLabelOutlet.text = @"...";
}else if(CGRectContainsPoint(self.voice2.frame, location)){
    updatedSelectedVoiceNumber=2;
    self.statusLabelOutlet.text = @"...";
} ...

。。。

---

}

我在许多stackoverflow回复中找到了部分答案。我粘贴我解决这个问题的方法（a）是为了帮助下一个人，（b）是为了寻求更好的解决方案

// in IB set long press gesture min duration to 0.1
-(IBAction)handleLongPressOnVoices:(UILongPressGestureRecognizer *)gestureRecognizer
    {
        CGPoint location = [gestureRecognizer locationInView:gestureRecognizer.view];

        if (gestureRecognizer.state == UIGestureRecognizerStateBegan){
            [self whichVoiceSelected:location];
        } else if(gestureRecognizer.state == UIGestureRecognizerStateChanged){
            [self whichVoiceSelected:location];
        } else if(gestureRecognizer.state == UIGestureRecognizerStateEnded){
            [self.avPlayer stop];
        }
    }

-(void)whichVoiceSelected:(CGPoint)location {

    int updatedSelectedVoiceNumber;

    if(CGRectContainsPoint(self.voice0.frame, location)){
        updatedSelectedVoiceNumber=0;
        self.statusLabelOutlet.text = @"...";
    }else if(CGRectContainsPoint(self.voice1.frame, location)){
        updatedSelectedVoiceNumber=1;
        self.statusLabelOutlet.text = @"...";
    }else if(CGRectContainsPoint(self.voice2.frame, location)){
        updatedSelectedVoiceNumber=2;
        self.statusLabelOutlet.text = @"...";
    } ...
...
}

// in IB set long press gesture min duration to 0.1
-(IBAction)handleLongPressOnVoices:(UILongPressGestureRecognizer *)gestureRecognizer
    {
        CGPoint location = [gestureRecognizer locationInView:gestureRecognizer.view];

        if (gestureRecognizer.state == UIGestureRecognizerStateBegan){
            [self whichVoiceSelected:location];
        } else if(gestureRecognizer.state == UIGestureRecognizerStateChanged){
            [self whichVoiceSelected:location];
        } else if(gestureRecognizer.state == UIGestureRecognizerStateEnded){
            [self.avPlayer stop];
        }
    }

-(void)whichVoiceSelected:(CGPoint)location {

    int updatedSelectedVoiceNumber;

    if(CGRectContainsPoint(self.voice0.frame, location)){
        updatedSelectedVoiceNumber=0;
        self.statusLabelOutlet.text = @"...";
    }else if(CGRectContainsPoint(self.voice1.frame, location)){
        updatedSelectedVoiceNumber=1;
        self.statusLabelOutlet.text = @"...";
    }else if(CGRectContainsPoint(self.voice2.frame, location)){
        updatedSelectedVoiceNumber=2;
        self.statusLabelOutlet.text = @"...";
    } ...
...
}