recyclerviewアダプタから子フラグメントを呼び出す方法

Question

recyclerviewの単一の行をクリックすると、recyclerviewアダプタからフラグメントを開きたいとします。このアクティビティでは、ビューポケベルで1つのメインアクティビティと3つのフラグメントがあります。 2番目の断片の中に2つの断片があります。最初の断片の中で私はrecyclerviewを使いました。そのrecyclerviewから、私はrecyclerviewの行をクリックすると、新しいフラグメントを開きたいと思います。

TodayTaskAdapter

package com.smartitventures.employeeapp.Adapters; 

import android.app.Activity; 
import android.content.Context; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentTransaction; 
import android.support.v7.widget.RecyclerView; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.TextView; 
import android.widget.Toast; 

import com.smartitventures.employeeapp.Activities.ProfileActivity3; 
import com.smartitventures.employeeapp.Fragments.FragmentTaskHistory; 
import com.smartitventures.employeeapp.Fragments.TaskDetailFragment; 
import com.smartitventures.employeeapp.Interfaces.ItemClickListener; 
import com.smartitventures.employeeapp.R; 
import com.smartitventures.employeeapp.Response.Response.TaskResponse.TaskPayload; 

import java.util.ArrayList; 


public class TodayTaskAdapter extends RecyclerView.Adapter<TodayTaskAdapter.MyViewHolder> { 

    private ArrayList<TaskPayload> taskPayloadArrayList; 
    private Context context; 

    ProfileActivity3 profileActivity3 = (ProfileActivity3) context; 

    public TodayTaskAdapter(Activity context, ArrayList<TaskPayload> taskPayloadArrayList) 
    { 
     this.taskPayloadArrayList = taskPayloadArrayList; 
     this.context = context; 

    } 

    @Override 
    public TodayTaskAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 

     View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.today_task_row, parent, false); 

     context = parent.getContext(); 
     return new MyViewHolder(view); 
    } 


    @Override 
    public void onBindViewHolder(TodayTaskAdapter.MyViewHolder holder, int position) { 


     TaskPayload taskPayload = taskPayloadArrayList.get(position); 

     holder.tvTitle.setText(taskPayload.getTitle()); 
     holder.tvDesc.setText(taskPayload.getDescription()); 
     holder.tvAssignDate.setText(taskPayload.getCreatedOn()); 
     holder.tvDeadline.setText(taskPayload.getDeadline()); 

     holder.setClickListener(new ItemClickListener() { 
      @Override 
      public void onClick(View view, int position, boolean isLongClick) { 

       Toast.makeText(context, "Clickkkkkkkkkkkkkkkkkkkkkkkk", Toast.LENGTH_SHORT).show(); 

       FragmentTaskHistory fragmentTaskHistory = new FragmentTaskHistory(); 
       FragmentTransaction transaction = profileActivity3.getSupportFragmentManager().beginTransaction(); 
       transaction.replace(R.id.frame_container, fragmentTaskHistory, "Fragment History Task").commit(); 

      } 
     }); 

    } 

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

    public static class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { 


     TextView tvTitle,tvDesc,tvAssignDate,tvDeadline; 

     private ItemClickListener clickListener; 


     public MyViewHolder(View itemView) { 
      super(itemView); 

      tvTitle = itemView.findViewById(R.id.tvTitle); 
      tvDesc = itemView.findViewById(R.id.tvDesc); 
      tvAssignDate = itemView.findViewById(R.id.tvAssignDate); 
      tvDeadline = itemView.findViewById(R.id.tvDeadline); 

      itemView.setOnClickListener(this); 

     } 

     public void setClickListener(ItemClickListener itemClickListener){ 
      this.clickListener = itemClickListener; 
     } 

     @Override 
     public void onClick(View view) { 
      clickListener.onClick(view,getPosition(),false); 

     } 


    } 
} 

Answer 1

この方法を試してみてください。

holder.setClickListener(new ItemClickListener() { 
     @Override 
     public void onClick(View view, int position, boolean isLongClick) { 

      Fragment fragment = new FragmentTaskHistory(); 
      FragmentManager fm = getActivity().getSupportFragmentManager(); 
      FragmentTransaction ft = fm.beginTransaction(); 
      ft.replace(R.id.frame_container, fragment); 
      ft.commit(); 

     } 
    });