ExpandableRecyclerView, 完全不限制RecyclerView
ExpandableRecyclerView by RecyclerView logic as ExpandableListView, 核心类ExpandableConnector, GroupMetadata,PositionMetadata, GroupViewHolder, ChildViewHolder, GroupInfo, ChildInfo
采用ExpandableListView原理并加入RecyclerView机制, 增加PositionMetadata缓存机制, 支持Header, Footer, ConcatAdapter
使用
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
dependencies {
implementation 'com.github.youxiaochen:expandable-recyclerview:1.0.4'
}ExpandableRecyclerView相关方法
| ExpandableRecyclerView 常用方法 | 说明 |
|---|---|
| expandGroup(int), isGroupExpanded(int) | 组相关操作 展开, 是否展开 |
| collapseGroup(int) | 组相关操作 叠起, 是否叠起 |
| setAdapter(ExpandableAdapter...) | 适配器,支持ConcatAdapter |
| findGroupInfoByIndex(int),findGroupInfoByIndex(int,GroupInfo) | 通过groupPos查找相GroupInfo, GroupInfo查找复用 |
| findChildInfoByIndex(int,int),findChildInfoByIndex(int,int,ChildInfo) | 通过groupPos,childPos查找ChildInfo, ChildInfo复用 |
| findGroupInfoByPosition(int), findChildInfoByPosition(int) | 通过Adapter position查找相关信息,可以是ConcatAdapter 支持info复用 |
| findGroupInfoByBindingPosition(int), findChildInfoByBindingPosition(int) | 通过ExpandableAdapter中的位置查找相关信息 ,info复用 |
| static isGroupViewType(int) | viewType类型是否为组 |
| getCurrentTotalChildCount() | 获取展开的所有Child数量 |
| isGroupTypeByPosition, isGroupTypeByBindingPosition | viewType类型是否为组 |
| getHeaderCount(), getFooterCount | 获取Header,Footer数量 |
ExpandableAdapter相关方法
| ExpandableAdapter 常用方法 | 说明 |
|---|---|
| getGroupCount, getChildCount | adapter count |
| getGroupViewType , getChildViewType | group, child viewType |
| onCreateGroupViewHolder, onCreateChildViewHolder | group,child create ViewHolder |
| onBindGroupViewHolder, onBindChildViewHolder | 支持 List |
| getGroupItemId, getChildItemId ,hasStableIds | setHasTableIds |
| groupCanClick | 组不可点击时全部展开, |
| saveExpandableState | 是否保存Expandable状态,关联onSaveStateInstance |
| getPositionPoolSize | PositionMetadata缓存数量 |
| onGroupStateChanged | 展开或者叠时回调 |
| onGroupViewRecycled, onChildViewRecycled | Group,child ViewHolder recycler |
| onGroupViewAttachedToWindow, detached | Group AttachedToWindow, detached |
| onChildViewAttachedToWindow, detached | Child AttachedToWindow, detached |
| onAttachedToExpandableRecyclerView, detached | AttachedToExpandableRecyclerView, detached |
| notifyDataSetChanged | adapter 刷新 |
| notifyGroupChanged, notifyGroupRangeChanged... | 刷新Group是否连带刷新Child RangeChanged |
| notifyGroupInserted, notifyGroupRangeInserted | Group insert, 顺insert时Child是否展开 |
| notifyGroupRemoved, notifyGroupRangeRemoved | Group remove rangeRemoved |
| notifyChildChanged, notifyChildRangeChanged | Child 刷新 RangeChanged |
| notifyChildInserted, notifyChildRangeInserted... | Child inserted RangeInserted |
| notifyChildRemoved, notifyChildRangeRemoved | child remove RangeRemoved |
| registerAdapterDataObserver,unRegister... | ExpandableAdapter注册与取消 观察者, 用于扩展(如StickyAdapter) |
博客地址 https://www.jianshu.com/p/9865cbc832e8
使用及扩展可参考Demo中的extern包
示例包下载
