actionscript-3 - Prevent certain child(ren) from affecting MouseEvent hitbox

Question

I've got a movieclip that I'm using as a button. Within this movieclip is a large shadow that shows when the button is moused over. My problem is that this shadow is effecting the mouseovers and causing a much larger "catch" area for the mouseOver and mouseOut events than I want.

I've tried disabling mouse events on that child and as many combinations of mouseEnabled and mouseChildren I can think of.

Is it possible to prevent certain elements effecting the mouseover properties of it's parent, or simply defining a custom hitbox for a movieclip to use?

Answer 1

您可以使用该hitArea属性，但实际上也可以使用mouseEnabledand进行控制mouseChildren，因此您走在了正确的轨道上：

假设您有一个名为“buttonMC”的影片剪辑，其中包含两个分别称为“clickableMC”和“shadowMC”的影片剪辑实例。

通过在 shadowMC 上将 mouseChildren 和 mouseEnabled 都设置为 false，您无法直接在该实例上监听鼠标事件。但是，点击 shadowMC 仍然会触发点击 buttonMC。为了防止在 buttonMC 上将 mouseEnabled 设置为 false。请注意，对于 buttonMC，mouseChildren 仍应为 true。

在按钮上将 mouseEnabled 设置为 false 并使其仍可单击可能听起来很奇怪，但可以将 mouseEnabled 视为确定显示对象的“图形”内容是否应可单击的标志。并且当 shadowMC 的 mouseChildren 和 mouseEnabled 设置为 false 时，就事件而言，影片剪辑的行为就像是图形（形状）。