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05.RecycleView使用的Adapter详解:

05.RecycleView使用的Adapter详解:

作者: 随风_逝 | 来源:发表于2018-06-24 12:42 被阅读11次

首先在build.gradle导入:

 implementation 'com.android.support:recyclerview-v7:26.1.0'

创建适配器:

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {

    private List<String> list;
    private OnItemClickLitener mOnItemClickLitener;

    public MyAdapter(List<String> list){
        this.list = list;
    }

    //创建新View,被LayoutManager所调用
    @Override
    public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_videoview,parent,false);
        return new ViewHolder(view);
    }

    //将数据与界面进行绑定的操作
    @Override
    public void onBindViewHolder(MyAdapter.ViewHolder holder, int position) {
        holder.videoView.setVideoPath(list.get(position));
    }

    //获取数据的数量
    @Override
    public int getItemCount() {
        return list.size();
    }

    //自定义的ViewHolder,持有每个Item的的所有界面元素
    public class ViewHolder extends RecyclerView.ViewHolder{
        VideoView videoView;
         ViewHolder(View itemView) {
            super(itemView);
           videoView = itemView.findViewById(R.id.video_view);

        if (mOnItemClickLitener != null){
            holder.itemView.setOnClickListener(new  View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    int pos = holder.getLayoutPosition();
                    mOnItemClickLitener.onItemClick(holder.itemView, pos);
                }
            });
          }
        }

    public interface OnItemClickLitener {
        void onItemClick(View view, int position);
    }

    public void setOnItemClickLitener(OnItemClickLitener mOnItemClickLitener) {
        this.mOnItemClickLitener = mOnItemClickLitener;
    }
    }

在Activity中:

    private RecyclerView mRecyclerView;
    private MyAdapter mAdapter;
    private ViewPagerLayoutManager mLayoutManager;
    private List<String> list;

在onCreate()中:

        //设置RecyclerView管理器
        mLayoutManager = new ViewPagerLayoutManager(getContext(), OrientationHelper.VERTICAL);
        //初始化适配器
        mAdapter = new MyAdapter(list);
        mRecyclerView.setLayoutManager(mLayoutManager);
        //设置适配器
        mRecyclerView.setAdapter(mAdapter);
        mAdapter..setOnItemClickLitener(new MaintenanceSupportAdapter.OnItemClickLitener() {
            @Override
            public void onItemClick(View view, int position) {
                Toast.makeText(HomePageRepairActivity.this, position + " click", Toast.LENGTH_SHORT).show();
            }
        });

参考:https://blog.csdn.net/lmj623565791/article/details/45059587

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