一个视图中有 2 个列表的 Recyclerview？

Question

再会，

我有这个屏幕，我想在其中显示投标的赢家和输家。

它需要看起来像这样：

TextView - Winners
Name and bid amount
Name and bid amount
Name and bid amount
--------------------
Textview - Losers
Name and bid amount
Name and bid amount
Name and bid amount
Name and bid amount

来自网络服务的响应如下：

{
  "winningBids": [
    {
      "amount": 500,
      "quantity": 1,
      "name": "Craig",
      "status": "WINNING"
    }
  ],
  "losingBids": [
    {
      "amount": 461,
      "quantity": 1,
      "name": "Bob",
      "status": "LOSE"
    },
    {
      "amount": 460,
      "quantity": 1,
      "name": "James",
      "status": "LOSE"
    }
  ]
}

我想过在同一个屏幕上有 2 个 RecyclerViews，但我认为这不会奏效，因为这个关于赢和输的列表可能很长，这意味着不同滚动区域的 2 个部分。有没有一种方法可以让我在同一个回收站视图中同时拥有赢家和输家，标题指示赢家和输家的名单以及赢家和输家名单之间的界限？

我的屏幕目前是：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  app:layout_behavior="@string/appbar_scrolling_view_behavior"
  tools:context="com.example.app.BiddingHistoryActivity"
  tools:showIn="@layout/activity_bidding_history">

  <android.support.v7.widget.RecyclerView
    android:layout_width="match_parent"
    android:padding="@dimen/padding_16"
    android:background="@drawable/border_bottom"
    android:layout_height="wrap_content"/>
</RelativeLayout>

我的行是名称的简单 TextView 和出价金额的 TextView。

您对我如何实现这一点的想法将不胜感激。

谢谢

Answer 1

创建不同ViewHolders你不同的看法：TYPE_HEADER_WINNER，TYPE_HEADER_LOOSER，TYPE_ITEM。

按照此处完整适配器的说明进行操作。

修改：

 private static final int TYPE_HEADER_WINNER = 0;
 private static final int TYPE_HEADER_LOOSER = 1;
 private static final int TYPE_ITEM = 2;

 @Override
 public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    if (viewType == TYPE_ITEM) {
        //inflate your layout and pass it to view holder
        return new VHItem(null);
    } else if (viewType == TYPE_HEADER_WINNER) {
        //inflate your layout and pass it to view holder
        return new VHHeaderWinner(null);
    } else if (viewType == TYPE_HEADER_LOOSER) {
        //inflate your layout and pass it to view holder
        return new VHHeaderLooser(null);
    }

    throw new RuntimeException("there is no type that matches the type " + viewType + " + make sure your using types correctly");
}

@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
    if (holder instanceof VHItem) {
        String dataItem = getItem(position);
        //cast holder to VHItem and set data
    } else if (holder instanceof VHHeaderWinner) {
        //cast holder to VHHeaderWinner and set data for header.
    } else if(holder instanceof VHHeaderLooser){        
        //cast holder to VHHeaderLooser and set data for header.
    }
}

@Override
public int getItemCount() {
    return data.length + 2; //Since you have 2 headers
}

@Override
public int getItemViewType(int position) {
    if (position == 0)
        return TYPE_HEADER_WINNER;
    if (position == winnerCount + 1) 
        return TYPE_HEADER_LOOSER;           

    return TYPE_ITEM;
}

class VHHeaderLooser extends RecyclerView.ViewHolder {
    Button button;

    public VHHeader(View itemView) {
        super(itemView);
    }
}

class VHHeaderWinner extends RecyclerView.ViewHolder {
    Button button;

    public VHHeader(View itemView) {
        super(itemView);
    }
}