问题描述
我放置了一个精灵A(子类可接收点击(userInteractionEnabled为YES))，然后放置一个普通的精灵B，该精灵B不在其之上(UserInteractionEnabled默认为否)，完全覆盖了精灵A.
I put a sprite A (subclassed to receive hits (userInteractionEnabled to YES)), and then a normal sprite B that does not take hits on top of that (userInteractionEnabled default NO), completely covering sprite A.
点击小精灵B，我认为小精灵A会得到触摸，但是什么也没发生.文档中有关此问题的部分如下.
Tapping on sprite B, I assume that sprite A would get the touch but nothing happens. The part from docs about the matter is below.
我觉得这里还不清楚，因为精灵B似乎仍然能够接收到触摸但将其丢弃.
I feel something is unclear here because it seems still that sprite B receives the touch but throws it away.
是否要解决此问题?只要某人的userInteractionEnabled为NO，它就不会干扰其他触摸接收器.
Anyway to fix this?As long as something's userInteractionEnabled is NO, it shouldn't interfere with other touch receivers.
更新:即使将子图形B的alpha设置为0.2，使子图形A变得非常明显，也不会使子图形A可以触摸.尽管未启用互动功能，但Sprite B完全吞噬"了触摸.
Update: Even setting sprite B's alpha to 0.2, making sprite A very visible, will not make sprite A touchable. Sprite B just totally "swallows" the touch, despite being not enabled for interaction.
推荐答案
这是我的解决方案，直到Apple以正确的行为更新SpriteKit或有人想出自己想要的方式使用它为止.
Here is my solution until Apple updates SpriteKit with correct behaviour, or someone acctually figures out how to use it like we want.
https://gist.github.com/bobmoff/7110052
将文件添加到您的项目中，并将其导入到Prefix标头中.现在，触摸应该可以按预期的方式进行.
Add the file to your project and import it in your Prefix header. Now touches should work the way intended.
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