你如何获得多个触摸按键具有的touchesBegan工作/移动？ [英] How do you get multiple touch buttons to work with touchesBegan/Moved?

问题描述

我有一堆，我想在三种不同的方式来激活按钮。

1. 触摸向下


2. 接触下来 - 多次接触（在同一时间）


3. 触摸拖动内（同为过钢琴拖动手指）

前两个是IB明显容易。然而，许多人，包括我自己，曾与内触摸拖拽的麻烦。所以，我结束了使用 - （无效）touchesMoved [见code]。这对于拖动的伟大工程......但要得到它的工作，我不得不禁用IB的按钮用户交互。这意味着我失去了降落和多点触控功能。

因此​​，为了获得触地的工作，我用 - （空）的touchesBegan [见code]。这工作得很好，但我不能让多点触控工作。

有谁知道我能得到我的按钮式多点触摸期间同时火？结果
或...有没有办法让触摸移动和按键功能在IB一起工作？

我曾尝试 touch.view.multiTouchEnabled =是; ，我已确保我的按钮是多个触摸OK在IB ...但没有什么

下面是我的code。
非常感谢你的帮助。

   - （无效）touchesMoved：（*的NSSet）触及withEvent：方法（*的UIEvent）事件
{
    UITouch *触摸= [[事件touchesForView：self.view] anyObject]    CGPoint位置= [触摸locationInView：touch.view];    如果（CGRectContainsPoint（p1.frame，位置））
    {
        如果（！p1.isHighlighted）{
            [个体经营PP01]
            [P1 setHighlighted：YES];
    }
}其他{
        [P1 setHighlighted：NO];
    }
    //
    如果（CGRectContainsPoint（p2.frame，位置））
    {
        如果（！p2.isHighlighted）{
            [个体经营PP02]
            [P2 setHighlighted：YES];
        }
    }其他{
        [P2 setHighlighted：NO];
    }
    如果（CGRectContainsPoint（p3.frame，位置））
    {
        如果（！p3.isHighlighted）{
            [个体经营PP03]
            [P3 setHighlighted：YES];
        }
    }其他{
        [P3 setHighlighted：NO];
    }
}
 

///

   - （空）的touchesBegan：（*的NSSet）触及withEvent：方法（*的UIEvent）事件
    {
        UITouch *触摸= [[事件touchesForView：self.view] anyObject]
        CGPoint位置= [触摸locationInView：touch.view];        如果（CGRectContainsPoint（p1.frame，位置））
        {
            [个体经营PP01]
            [P1 setHighlighted：YES];
        }
        如果（CGRectContainsPoint（p2.frame，位置））
        {
            [个体经营PP02]
            [P2 setHighlighted：YES];
        }
        如果（CGRectContainsPoint（p3.frame，位置））
        {
            [个体经营PP03]
            [P3 setHighlighted：YES];
        }
}
 

解决方案

您需要检查每一个接触，而不是一个随意触摸。因此，为（UITouch *在触摸T）而不是 UITouch *触摸= [触摸anyObject]

I have a bunch of buttons that I want to activate in three different ways.

1. Touch Down
2. Touch Down - multiple touch (at the same time)
3. Touch Drag Inside (The same as dragging your finger over a piano)

The first two is obviously easy in IB. However many people, including myself, have had trouble with Touch Drag inside. So I ended up using - (void) touchesMoved [see code] . This works great for the drag... but to get it to work I had to disable the buttons "user Interaction" in IB. Which means I lost the "Touch Down" and multi-touch capabilities.

So, in order to get the "Touch Down" to work, I used -(void) touchesBegan [see code]. This works fine, but I can't get multi-touch to work.

Does anyone know how I can get my buttons to fire simultaneously during multi-touch?
Or ... Is there a way to get touches moved and button functions in IB to work together?

I have tried touch.view.multiTouchEnabled = Yes; and I have ensured that my buttons are multiple touch ok in IB... But nothing.

Below is my code. Thank you very much for your help.

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *touch = [[event touchesForView:self.view] anyObject];

    CGPoint location = [touch locationInView:touch.view];

    if(CGRectContainsPoint(p1.frame, location)) 
    {
        if (!p1.isHighlighted){
            [self pP01];
            [p1 setHighlighted:YES];
    }
}else {
        [p1 setHighlighted:NO];
    }
    //
    if(CGRectContainsPoint(p2.frame, location)) 
    {
        if (!p2.isHighlighted){
            [self pP02];
            [p2 setHighlighted:YES];
        }
    }else {
        [p2 setHighlighted:NO];
    }
    if(CGRectContainsPoint(p3.frame, location))
    {
        if (!p3.isHighlighted){
            [self pP03];
            [p3 setHighlighted:YES];
        }
    }else {
        [p3 setHighlighted:NO];
    }
}

///

- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
    {
        UITouch *touch = [[event touchesForView:self.view] anyObject];
        CGPoint location = [touch locationInView:touch.view];

        if(CGRectContainsPoint(p1.frame, location))
        {
            [self pP01];
            [p1 setHighlighted:YES];
        }
        if(CGRectContainsPoint(p2.frame, location))
        {
            [self pP02];
            [p2 setHighlighted:YES];
        }
        if(CGRectContainsPoint(p3.frame, location))
        {
            [self pP03];
            [p3 setHighlighted:YES];
        }
}

解决方案

You need to check every touch instead of one random touch. So, for(UITouch *t in touches) instead of UITouch *touch = [touches anyObject]

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