ScrollView

http://developer.android.com/reference/android/widget/ScrollView.html

Class Overview

Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display. A ScrollView is aFrameLayout, meaning you should place one child in it containing the entire contents to scroll; this child may itself be a layout manager with a complex hierarchy of objects. A child that is often used is aLinearLayoutin a vertical orientation, presenting a vertical array of top-level items that the user can scroll through.

TheTextViewclass also takes care of its own scrolling, so does not require a ScrollView, but using the two together is possible to achieve the effect of a text view within a larger container.

ScrollView only supports vertical scrolling.

类概述

布局容器视图层次结构，用户可以滚动，允许它大于实物展示。一个滚动是一个FrameLayout，这意味着你应该把它包含的全部内容滚动一个child，这个child本身可能是一个复杂的对象层次结构的布局管理器。经常使用的一个孩子是一个LinearLayout在垂直方向，呈现出顶级的项目，用户可以通过滚动的垂直排列。

TextView的类别也需要照顾自己的滚动，所以不需要滚动，但使用两个在一起是有可能实现一个更大的容器内文本视图的效果。

滚动仅支持垂直滚动。

请注意：只能有一个View在其根

Class Overview

类概述

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