RecyclerView(3) 事件处理和布局

最新推荐文章于 2024-06-17 09:11:58 发布

czcdms

最新推荐文章于 2024-06-17 09:11:58 发布

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分类专栏： ReclerView

本文链接：https://blog.youkuaiyun.com/czcdms/article/details/45418123

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本文详细解析了如何在RecyclerView中自定义Cell，包括事件处理、点击监听及布局实现，通过实例代码深入理解每一部分的功能与应用。

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事件处理:

class MyRecyclerViewCell extends RecyclerView.ViewHolder implements View.OnClickListener {

    public TextView tvTitle,tvContent;
    public Button btnClickMe;

    public MyRecyclerViewCell(View cellView) {
        super(cellView);
        tvTitle = (TextView) cellView.findViewById(R.id.tvTitle);
        tvContent = (TextView) cellView.findViewById(R.id.tvContent);
        btnClickMe = (Button) cellView.findViewById(R.id.btnClickMe);

        <span style="color:#ff0000;">cellView.setOnClickListener(this);//cell本身的事件,</span><span style="color: rgb(255, 0, 0); font-family: Arial, Helvetica, sans-serif;">MyRecyclerViewCell有自己的layout.xml</span><span style="color:#ff0000;">
        btnClickMe.setOnClickListener(this);//cell上button上的button的事件</span>
    }

    /**
     * Called when a view has been clicked.
     *
     * @param v The view that was clicked.
     */
    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.btnClickMe:
                Toast.makeText(v.getContext(),"btn clicked",Toast.LENGTH_SHORT).show();
                break;
            case R.id.rvCell:
                Toast.makeText(v.getContext(),"cell clicked",Toast.LENGTH_SHORT).show();
                break;
        }
    }
}

布局:

public class MyRecyclerMainFragment extends Fragment {

    private RecyclerView rv;

    public MyRecyclerMainFragment() {
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.fragment_main, container, false);
        
        rv = new RecyclerView(getActivity());


        //grid布局
        //第2个参数是列数,第3个是横向还是竖向
        rv.setLayoutManager(new GridLayoutManager(getActivity(),4,GridLayoutManager.VERTICAL,false));//true的时候把cell上的内容顺序反转

        //线程布局
//        rv.setLayoutManager(new LinearLayoutManager(getActivity()));
//        rv.setLayoutManager(new LinearLayoutManager(getActivity(),LinearLayoutManager.HORIZONTAL,false));//true的时候把cell上的内容顺序反转

        rv.setAdapter(new MyRecyclerAdapter());

        return rv;
    }

}