合并多个RecyclerView.Adapter以与单个RecyclerView(Android)一起使用

Question

我有一个json字符串,我分成4个数据集,每个数据集都有自己的RecyclerView.Adapter.

我想在每个适配器上使用StickyHeader在同一个RecyclerView中输出所有适配器.

我相信这可以通过CommonsWare的CWAC合并使用ListViews来完成(https://github.com/commonsguy/cwac-merge)

有关如何使用RecyclerView或应该如何使用RecyclerView的任何想法？我是一个不成熟的开发人员,所以响应越不抽象越好;-D

谢谢.

Answer 1

在Recyclerview 小部件的新更新中，您可以使用MergeAdapter类

import androidx.recyclerview.widget.MergeAdapter

实例化适配器：

 private val mfirstAdapter = FirstAdapter()
 private val mSecondAdapter = SecondAdapter()

 // here is MergeAdapter class
 private val adapter = MergeAdapter(mfirstAdapter , mSecondAdapter )

然后用法：

 binding.recycler.adapter = adapter

如何更新适配器：（如果使用diffUtils，则使用.submitList，否则使用no​​tifyDataSetChaned()）

  mfirstAdapter.submitList(myDataArrayList.subList(0, 10))
  mSecondAdapter.submitList(myDataArrayList.subList(10, list.size - 1))

Answer 2

我会选择这个库：https ://github.com/martijnvdwoude/recycler-view-merge-adapter

查看 Github 页面上的文档，了解如何在代码中使用它的示例。

自述文件摘录：

RecyclerView myRecyclerView = (RecyclerView) view.findViewById(R.id.my_recycler_view);

// Create new merge adapter
RecyclerViewMergeAdapter mergeAdapter = new RecyclerViewMergeAdapter();

// Add any number of subadapters to merge adapter
MyRecyclerViewSubAdapter subAdapter1 = new MyRecyclerViewSubAdapter();
MyRecyclerViewSubAdapter subAdapter2 = new MyRecyclerViewSubAdapter();

mergeAdapter.addAdapter(subAdapter1);
mergeAdapter.addAdapter(subAdapter2);

// Set merge adapter to RecyclerView
myRecyclerView.setAdapter(mergeAdapter);