《Android 基础（四十一）》 ExpandableListView

最新推荐文章于 2024-11-09 09:24:36 发布

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最新推荐文章于 2024-11-09 09:24:36 发布

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分类专栏： Android 基础知识呱呱Android基础文章标签： android expandablelistview listview

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本文详细介绍了Android中的ExpandableListView，包括其基本使用、布局文件、类结构、上下文菜单的设置，并提供了相关代码示例，展示了如何实现两级列表的收展效果以及自定义分割线和上下文菜单。

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1. 简介

看下源码中的英文介绍

/**
 * A view that shows items in a vertically scrolling two-level list. This
 * differs from the {@link ListView} by allowing two levels: groups which can
 * individually be expanded to show its children. The items come from the
 * {@link ExpandableListAdapter} associated with this view.
 * <p>
 * Expandable lists are able to show an indicator beside each item to display
 * the item's current state (the states are usually one of expanded group,
 * collapsed group, child, or last child). Use
 * {@link #setChildIndicator(Drawable)} or {@link #setGroupIndicator(Drawable)}
 * (or the corresponding XML attributes) to set these indicators (see the docs
 * for each method to see additional state that each Dr

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