RecyclerView Item添加点击事件

最新推荐文章于 2020-11-03 10:19:25 发布

原创最新推荐文章于 2020-11-03 10:19:25 发布 · 491 阅读

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本文详细解析了RecyclerView适配器的实现方式，包括其构造方法、onCreateViewHolder、onBindViewHolder及getItemCount方法的使用。同时，介绍了如何通过ViewHolder处理点击事件，并提供了完整的代码示例。

记录一下，方便直接用

public class TestAdapter extends RecyclerView.Adapter<TestAdapter.ViewHolder>{
  
    private OnItemClickListener OnItemClickListener;
 
    public TestAdapter( ) {
         
    }
    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view=mLayoutInflater.inflate(R.layout.test_item,null);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, final int position) {
        
    }

    @Override
    public int getItemCount() {
        return list.size();
    }


    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
        OnItemClickListener = onItemClickListener;
    }
    class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
        
        private OnItemClickListener mOnItemClickListener;

        ViewHolder(View itemView) {
            super(itemView);
           
            mOnItemClickListener=OnItemClickListener;
            itemView.setOnClickListener(this);
        }

        @Override
        public void onClick(View v) {
            if (mOnItemClickListener == null) {
                return;
            }
            mOnItemClickListener.onClick(v,getLayoutPosition());
        }
    }

    public interface OnItemClickListener {
        public void onClick(View view, int position);
    }
}