In an Android application, the user interface is built using View and ViewGroup objects.

在一个Android应用中，用户界面是由View和ViewGroup对象构建的。

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View objects are leaves in the tree, ViewGroup objects are branches in the tree (see the View Hierarchy figure above).

View对象是树的叶节点，而ViewGroup对象是树的分支(参阅楼上的视图层次图)。

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The AdapterView object is an implementation of ViewGroup that determines its child views based on a given Adapter object.

AdapterView对象是一个用给定的Adapter对象为基础构建它的子视图的ViewGroup实现。

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