Android Recycleview 绑定适配器

0. 添加依赖

// 两个版本保持一致
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'

1. 设置布局

    <view class="android.support.v7.app.AlertController$RecycleListView"android:id="@+id/rcv_item"android:layout_width="match_parent"android:layout_height="match_parent">

2. 创建适配器类 -以 TrainListAdapter 为例

public class TrainListAdapter extends RecyclerView.Adapter<TrainListAdapter.ViewHolder> {//此处可创建构造函数传数据进来@NonNull@Overridepublic TrainListAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {//recycleview子项布局View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item, parent, false);final TrainListAdapter.ViewHolder holder = new TrainListAdapter.ViewHolder(view);return holder;}@Overridepublic void onBindViewHolder(@NonNull TrainListAdapter.ViewHolder holder, int position)         {}@Overridepublic int getItemCount() {return 0;}//自定义类public class ViewHolder extends RecyclerView.ViewHolder {public ViewHolder(View itemView) {super(itemView);}}
}

3. 初始化 Recycleview , LayoutManager， TrainListAdapter

    private RecyclerView train_list_rcv;private LinearLayoutManager layoutManager;private TrainListAdapter adapter;

4. Activity 中设置

        adapter = new TrainListAdapter();layoutManager = new LinearLayoutManager(this); layoutManager.setOrientation(LinearLayoutManager.VERTICAL); //布局管理器train_list_rcv.setLayoutManager(layoutManager); //设置布局管理器train_list_rcv.setAdapter(adapter); //设置适配器

成功绑定。