如何让多个按钮进入firestore recyclerview？

Posted 2023-04-19

【中文标题】如何让多个按钮进入firestore recyclerview？

【英文标题】：How to get multiple buttons working into a firestore recyclerview?

【发布时间】：2021-04-10 02:45:49

【问题描述】：

我设法让一个按钮工作 (btnInfo)，但后来我不知道如何添加第二个按钮 (btnInschrijven)。关于如何使第二个按钮起作用的任何想法？

我是编码新手，使用 youtube 和逻辑思维，但有些东西我就是找不到或想出。

This is what it looks like

适配器：

 public  class LesViewHolder extends RecyclerView.ViewHolder

    TextView Lijst_Soort, Lijst_Wanneer, Lijst_Waar;


    public LesViewHolder(@NonNull View itemView)
        super(itemView);

        Lijst_Soort = itemView.findViewById(R.id.idLes);
        Lijst_Waar = itemView.findViewById(R.id.idWaar);
        Lijst_Wanneer = itemView.findViewById(R.id.idWanneer);
        btnInfo = itemView.findViewById(R.id.btnInfo);
        btnInschrijven = itemView.findViewById(R.id.btnInschrijven);

        btnInfo.setOnClickListener(new View.OnClickListener() 
            @Override
            public void onClick(View view) 
              int position = getAdapterPosition();
                if(position !=RecyclerView.NO_POSITION && listener !=null)
                    listener.onItemClick(getSnapshots().getSnapshot(position), position );
                
            
        );


 public LesAdapter getInstance() 
    return instance;
    
    public interface OnItemClickListener
    void onItemClick(DocumentSnapshot documentSnapshot, int position);
    

    public void setOnItemClickListener(OnItemClickListener listener)
    this.listener = listener;

    

MainFragment：

     adapter.setOnItemClickListener(new LesAdapter.OnItemClickListener() 
        @Override
        public void onItemClick(DocumentSnapshot documentSnapshot, int position) 


            Timestamp wanneer = documentSnapshot.getTimestamp("Wanneer");
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("E d MMMM HH:mm");
            String dateTime = simpleDateFormat.format(wanneer.toDate());
            Intent intent = new Intent(getActivity(), Deelnamelijst.class);
            intent.putExtra("Welke les", dateTime);
            startActivity(intent);
        
    );
   

【参考方案1】：

使用以下代码更改您的代码

public interface OnItemClickListener
     void onItemClick(DocumentSnapshot documentSnapshot, int position);
     void onSecondButtonClick(DocumentSnapshot documentSnapshot, int position);
     //you can add any number of methods here as per your requrenments

现在在第二个按钮上添加点击监听器并执行此操作

 btnInschrijven.setOnClickListener(new View.OnClickListener() 
        @Override
        public void onClick(View view) 
          int position = getAdapterPosition();
            if(position !=RecyclerView.NO_POSITION && listener !=null)  
              listener.onSecondButtonClick(getSnapshots().getSnapshot(position), position );
            
        
    );

现在在您的活动中，无论您在哪里分配 OnItemClickListener，您都需要覆盖您在 interface 中创建的新方法

因此，当您单击第二个按钮时，onSecondButtonClick() 将执行并且被覆盖方法下的代码将被执行

 adapter.setOnItemClickListener(new LesAdapter.OnItemClickListener() 
    @Override
    public void onItemClick(DocumentSnapshot documentSnapshot, int position) 
           //...
    

    @Override
    public void onSecondButtonClick(DocumentSnapshot documentSnapshot, int position) 
          //todo here you get click
    
);