RecyclerView的使用(二)点击事件

RecyclerView的使用(二)点击事件

RecyclerView的实现了很多功能,但同时有很多功能是需要我们去实现的。RecyclerView的点击事件就需要我们自己去处理。方法就是通过Adapter的View 实现OnClickListener的监听。

基本的Adapter代码为

public class LinearAdapter extends RecyclerView.Adapter<LinearAdapter.MyViewHolder>{    private Context mContext;    private List<String> mDatas;    LinearAdapter(Context mContext,List<String> mDatas){        this.mContext = mContext;        this.mDatas = mDatas;    }    @Override    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View v = LayoutInflater.from(mContext).inflate(R.layout.item_linear,parent,false);        return new MyViewHolder(v);    }    @Override    public void onBindViewHolder(MyViewHolder holder, int position) {        holder.tv.setText(mDatas.get(position));    }    @Override    public int getItemCount() {        return mDatas.size();    }    public class MyViewHolder extends RecyclerView.ViewHolder {        TextView tv;        public MyViewHolder(View itemView) {            super(itemView);            tv = (TextView) itemView.findViewById(R.id.adapter_linear_text);        }    }}

首先我们需要定义一个接口

    public interface OnItemClickListener{        //点击事件        void onItemClick(View v,int position);        //长按事件        void onItemLongClick(View v,int position);    }

    //添加Set方法        public void setOnItemClickListener(OnItemClickListener mListener){        this.mListener = mListener;    }

在onBindViewHolder中添加点击事件回调

holder.tv.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                mListener.onItemClick(v, holder.getLayoutPosition());            }        });        holder.tv.setOnLongClickListener(new View.OnLongClickListener() {            @Override            public boolean onLongClick(View v) {                mListener.onItemLongClick(v, holder.getLayoutPosition());                return false;            }        });

在Activity中使用

//设置Adapter        mAdapter = new LinearAdapter(this,mDatas);        mAdapter.setOnItemClickListener(new LinearAdapter.OnItemClickListener() {            @Override            public void onItemClick(View v, int position) {                Toast.makeText(ListViewActivity.this, "点击的位置是："+position, Toast.LENGTH_SHORT).show();            }            @Override            public void onItemLongClick(View v, int position) {                Toast.makeText(ListViewActivity.this, "长点的是："+ position, Toast.LENGTH_SHORT).show();            }        });

这样就实现了Item的点击事件