Java 当在片段中时，如何在recyclerview中获取所选项目？

从当前片段中，我想获取所选项目在recyclerview中的位置，但不在适配器中

现在我有两个回收视图。 单击一个我想将数据发送到第二个，但按当前片段发送，因为这将生成一个单独的数据。 首先，重要的是创建一个包含函数的接口，并在类片段中重写该函数

例

Cintasadapter[适配器] Cargas_detalle_previo[片段]

在适配器中创建一个接口，例如 例 CintasAdapter.java

 /// The interface
public interface getselectpos
    {
        void onItemClick(CintasHolder holder, int posicion);
    }

private getselectpos interfaceclick;
//Declared a private variable to manage the interface



//in the constructor recover the interface, for exemple.

//CintasDataset is a class to manage the data for the adapter

 public CintasAdapter(List<CintasDataset> items, getselectpos Interfaceclick)
    {
        this.mitems = items; //the elements 
        this.interfaceclick=Interfaceclick; // the interface create from in the fragment
    }




/// Class holder for this class , and implements OnClickListener

public class CintasHolder extends RecyclerView.ViewHolder implements View.OnClickListener
    {
        public ImageView imagen; //an imagen
        public TextView modocorte;/a textview 

        public CintasHolder(View itemView)
        {
            super(itemView);
            itemView.setOnClickListener(this);//add the listener for an element
        }

        //add onClick and set the funcion onItemClick , declared in the interface
        @Override
        public void onClick(View view)
        {
            interfaceclick.onItemClick(this, getAdapterPosition());
        }
    }

//Cargas_detalle_previo is the fragment class, the interface  "CintasAdapter.getselectpos "
public class Cargas_detalle_previo extends Fragment  implements  CintasAdapter.getselectpos
{
    //TODO CONTENT
    //exemple for onViewCreated
    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState)
    {
        //TODO CONTENT
         List mitems2 = new ArrayList(); // for exemple 

        //declared the adapter
         final CintasAdapter adaptercintas = new CintasAdapter(mitems,this);
    }



    //and  override the function in the interface, in the case  onItemClick
    @Override
    public void onItemClick(CintasAdapter.CintasHolder holder, int posicion)
    {


        //and use the posicion 

        //exemple to show the posicion
        Toast.makeText(getContext(),posicion+"",Toast.LENGTH_LONG).show();


    }

}

很抱歉我的英语不好

我解决了这个问题，一位朋友告诉我要检查java中的接口，我希望它能为其他人服务。 首先，重要的是创建一个包含函数的接口，并在类片段中重写该函数

例

Cintasadapter[适配器] Cargas_detalle_previo[片段]

在适配器中创建一个接口，例如 例 CintasAdapter.java

 /// The interface
public interface getselectpos
    {
        void onItemClick(CintasHolder holder, int posicion);
    }

private getselectpos interfaceclick;
//Declared a private variable to manage the interface



//in the constructor recover the interface, for exemple.

//CintasDataset is a class to manage the data for the adapter

 public CintasAdapter(List<CintasDataset> items, getselectpos Interfaceclick)
    {
        this.mitems = items; //the elements 
        this.interfaceclick=Interfaceclick; // the interface create from in the fragment
    }




/// Class holder for this class , and implements OnClickListener

public class CintasHolder extends RecyclerView.ViewHolder implements View.OnClickListener
    {
        public ImageView imagen; //an imagen
        public TextView modocorte;/a textview 

        public CintasHolder(View itemView)
        {
            super(itemView);
            itemView.setOnClickListener(this);//add the listener for an element
        }

        //add onClick and set the funcion onItemClick , declared in the interface
        @Override
        public void onClick(View view)
        {
            interfaceclick.onItemClick(this, getAdapterPosition());
        }
    }

//Cargas_detalle_previo is the fragment class, the interface  "CintasAdapter.getselectpos "
public class Cargas_detalle_previo extends Fragment  implements  CintasAdapter.getselectpos
{
    //TODO CONTENT
    //exemple for onViewCreated
    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState)
    {
        //TODO CONTENT
         List mitems2 = new ArrayList(); // for exemple 

        //declared the adapter
         final CintasAdapter adaptercintas = new CintasAdapter(mitems,this);
    }



    //and  override the function in the interface, in the case  onItemClick
    @Override
    public void onItemClick(CintasAdapter.CintasHolder holder, int posicion)
    {


        //and use the posicion 

        //exemple to show the posicion
        Toast.makeText(getContext(),posicion+"",Toast.LENGTH_LONG).show();


    }

}

很抱歉我的英语不好

我解决了这个问题，一个朋友告诉我用java检查接口，我希望它能为其他人服务