如何在ViewGroup中使用Scroller（android）
我有一个自定义 ViewGroup，想为其添加滚动功能。
是否可以使用 Scroller 对象并将其与视图组链接起来？
我在某处读到 Scroller 不执行任何实际滚动。这意味着它必须将滚动责任委托给 ViewGroup。
谢谢
I have a custom ViewGroup and would like to add scrolling ability to it.
Is it possible to use a Scroller object and link it up with view group?
I have read somewhere that Scroller does not do any actual scrolling. That means it must be delegating the scrolling responsibility back to ViewGroup.
thanks
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ScrollView 对象允许滚动。基本上，大多数视图都可以滚动，但它们无法将触摸事件传播到 View 类。
ScrollView为用户处理这个问题，因此只要您想为某个视图启用滚动，就应该将其包裹在该视图周围。请记住，ScrollView 只能有一个子视图，因此如果您需要在同一滚动布局中拥有多个视图，则需要将它们全部放在一个
LinearLayout（或RelativeLayout代码>，或者你决定的任何内容）。The ScrollView object is what allows for scrolling. Basically, most Views are able to be scrolled, but they have no way of propagating touch events to the View class. A
ScrollViewhandles this for the user, so should be wrapped around a View whenever you would like to enable Scrolling for a that view.Remember that a ScrollView can only have one child view, so if you need have multiple views in the same scrolling layout, you'll need to have them all inside one
LinearLayout(orRelativeLayout, or whatever you decide).