替換選項卡內的片段

我有4個選項卡。我們只要說是Tab Ende（FragmentEnde），Tabwa Kidung（FragmentKidung），Tab Renungan（FragmentRenungan）和Tab About（FragmentAbout）。
每個選項卡使用片段。

Inside Tab Renungan（FragmentRenungan），我有2個按鈕，讓我們只說按鈕列表和按鈕搜索。
當我點擊按鈕列表時，我想用片段RenunganMonthly替換它。我使用ViewPager進行佈局。替換選項卡內的片段

現在，我可以替換片段Renungan，但它不會顯示片段RenunganMonthly的內容。我應該怎麼做才能在ViewPager上顯示內容？

PagerAdapter.java

activity_main.xml中

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 
    android:id="@+id/main_layout" 
    android:orientation="vertical" 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context=".MainActivity"> 

    <android.support.design.widget.TabLayout 
     android:id="@+id/tab_layout" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:background="?attr/colorPrimary" 
     android:elevation="2dp" 
     android:minHeight="?attr/actionBarSize" 
     android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/> 

     <android.support.v4.view.ViewPager 
      android:id="@+id/pager" 
      android:layout_below="@+id/tab_layout" 
      android:layout_width="match_parent" 
      android:layout_height="fill_parent" /> 

</LinearLayout>

MainActivity.java

package com.tektokan.apps.rmh; 

import android.net.Uri; 
import android.support.design.widget.TabLayout; 
import android.support.v4.view.ViewPager; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentManager; 

public class MainActivity extends AppCompatActivity implements FragmentRenungan.OnFragmentInteractionListener { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout); 
     tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.ende)); 
     tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.kidung)); 
     tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.renungan)); 
     tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.about)); 
     tabLayout.setTabGravity(TabLayout.GRAVITY_FILL); 

     final ViewPager viewPager = (ViewPager) findViewById(R.id.pager); 
     final PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(), tabLayout.getTabCount()); 
     viewPager.setAdapter(adapter); 

     viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout)); 
     tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() { 
      @Override 
      public void onTabSelected(TabLayout.Tab tab) { 
       viewPager.setCurrentItem(tab.getPosition()); 
      } 

      @Override 
      public void onTabUnselected(TabLayout.Tab tab) { 

      } 

      @Override 
      public void onTabReselected(TabLayout.Tab tab) { 
       viewPager.setCurrentItem(tab.getPosition()); 
      } 
     }); 

    } 

    @Override 
    public void onFragmentInteraction(Uri uri) { 

    } 
}

FragmentRenungan.java

package com.tektokan.apps.rmh; 


import android.app.DatePickerDialog; 
import android.content.Context; 
import android.net.Uri; 
import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentTransaction; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.Button; 
import android.widget.DatePicker; 

import java.text.SimpleDateFormat; 
import java.util.Calendar; 
import java.util.Date; 


/** 
* A simple {@link Fragment} subclass. 
*/ 
public class FragmentRenungan extends Fragment { 
    // TODO: Rename parameter arguments, choose names that match 
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER 
    private static final String ARG_PARAM1 = "param1"; 
    private static final String ARG_PARAM2 = "param2"; 

    // TODO: Rename and change types of parameters 
    private String mParam1; 
    private String mParam2; 

    private OnFragmentInteractionListener mListener; 

    public FragmentRenungan() { 
     // Required empty public constructor 
    } 

    /** 
    * Use this factory method to create a new instance of 
    * this fragment using the provided parameters. 
    * 
    * @param param1 Parameter 1. 
    * @param param2 Parameter 2. 
    * @return A new instance of fragment RenunganFragment. 
    */ 
    // TODO: Rename and change types and number of parameters 
    public static FragmentRenungan newInstance(String param1, String param2) { 
     FragmentRenungan fragment = new FragmentRenungan(); 
     Bundle args = new Bundle(); 
     args.putString(ARG_PARAM1, param1); 
     args.putString(ARG_PARAM2, param2); 
     fragment.setArguments(args); 
     return fragment; 
    } 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     if (getArguments() != null) { 
      mParam1 = getArguments().getString(ARG_PARAM1); 
      mParam2 = getArguments().getString(ARG_PARAM2); 
     } 
    } 

    // TODO: Rename method, update argument and hook method into UI event 
    public void onButtonPressed(Uri uri) { 
     if (mListener != null) { 
      mListener.onFragmentInteraction(uri); 
     } 
    } 


    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
     // Inflate the layout for this fragment 
     View view = inflater.inflate(R.layout.fragment_renungan, container, false); 

     Button daftar = (Button) view.findViewById(R.id.renDaftar); 
     Button cari = (Button) view.findViewById(R.id.renCari); 
     daftar.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       FragmentManager fragmentManager = getFragmentManager(); 
       fragmentManager.beginTransaction().replace(R.id.pager, new FragmentRenunganMonthly()).addToBackStack(null).commit(); 
      } 
     }); 

     cari.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       showDatePicker(); 
      } 
     }); 

     return view; 
    } 

    @Override 
    public void onAttach(Context context) { 
     super.onAttach(context); 
     if (context instanceof OnFragmentInteractionListener) { 
      mListener = (OnFragmentInteractionListener) context; 
     } else { 
      throw new RuntimeException(context.toString() 
        + " must implement OnFragmentInteractionListener"); 
     } 
    } 

    @Override 
    public void onDetach() { 
     super.onDetach(); 
     mListener = null; 
    } 

    /** 
    * This interface must be implemented by activities that contain this 
    * fragment to allow an interaction in this fragment to be communicated 
    * to the activity and potentially other fragments contained in that 
    * activity. 
    * <p/> 
    * See the Android Training lesson <a href= 
    * "http://developer.android.com/training/basics/fragments/communicating.html" 
    * >Communicating with Other Fragments</a> for more information. 
    */ 
    public interface OnFragmentInteractionListener { 
     // TODO: Update argument type and name 
     void onFragmentInteraction(Uri uri); 
    } 

    private void showDatePicker() { 
     DatePickerFragment date = new DatePickerFragment(); 

     Bundle args = new Bundle(); 
     args.putString("title", "Pilih Tanggal Renungan"); 

     date.setArguments(args); 
     date.setCallBack(ondate); 
     date.show(getFragmentManager(), "DatePicker"); 
    } 

    DatePickerDialog.OnDateSetListener ondate = new DatePickerDialog.OnDateSetListener() { 
     @Override 
     public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { 
      int bulan = monthOfYear + 1; 
      String tanggal = String.valueOf(year) + " - " + String.valueOf(bulan) + " - " + String.valueOf(dayOfMonth); 

      Calendar cal = Calendar.getInstance(); 
      cal.set(year, monthOfYear, dayOfMonth); 
      Date date = cal.getTime(); 
      SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); 
      String abc = sdf.format(date); 
     } 
    }; 
}

fragment_renungan.xml

<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:orientation="vertical"> 

    <TableLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content"> 

     <TableRow 
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:weightSum="1" 
      android:layout_weight="0.5"> 
      <LinearLayout 
       android:layout_width="0dp" 
       android:layout_height="match_parent" 
       android:layout_weight="0.5" 
       android:padding="5dp"> 
       <Button 
        android:id="@+id/renDaftar" 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:clickable="true" 
        android:text="Daftar Renungan" 
        android:background="@drawable/button" 
        android:drawableTop="@drawable/ic_list_ren" /> 
      </LinearLayout> 
      <LinearLayout 
       android:layout_width="0dp" 
       android:layout_height="match_parent" 
       android:layout_weight="0.5" 
       android:padding="5dp"> 
       <Button 
        android:id="@+id/renCari" 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:clickable="true" 
        android:text="Cari Renungan" 
        android:background="@drawable/button" 
        android:drawableTop="@drawable/ic_event_ren" /> 
      </LinearLayout> 
     </TableRow> 

    </TableLayout> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:orientation="vertical"> 

     <android.support.v7.widget.CardView 
      android:id="@+id/renHariIni" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_margin="5dp"> 

      <LinearLayout 
       android:layout_width="match_parent" 
       android:layout_height="match_parent" 
       android:orientation="vertical"> 

       <TextView 
        android:id="@+id/title" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:layout_below="@+id/thumbnail" 
        android:maxLines="3" 
        android:padding="8dp" 
        android:text="Judul" 
        android:textColor="#222" 
        android:textStyle="bold" 
        android:textSize="22dp" /> 

       <TextView 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:layout_below="@+id/title" 
        android:maxLines="3" 
        android:padding="8dp" 
        android:text="Deskripsi" 
        android:textColor="#666" 
        android:textSize="14dp" /> 

      </LinearLayout> 
     </android.support.v7.widget.CardView> 
    </LinearLayout> 

</LinearLayout>

FragmentRenunganMonthly.java

package com.tektokan.apps.rmh; 


import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 


public class FragmentRenunganMonthly extends Fragment { 

    public FragmentRenunganMonthly() { 

    } 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
     Log.d("testing", "testing"); 
     return inflater.inflate(R.layout.fragment_renungan_monthly, container, false); 
    } 

}

fragment_renungan_monthly.xml

<FrameLayout 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    xmlns:android="http://schemas.android.com/apk/res/android"> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:orientation="vertical"> 

     <TextView 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="Fragment Renungan Monthly" /> 
</LinearLayout> 
</FrameLayout>

來源

2016-05-31 oncom

你在哪裏調用adapter.notifyDataSetChanged（）？ –

我不知道爲什麼的觀點並沒有得到更新。這是一個解決方法：

創建一個基片段FragmentRenunganBase並在PagerAdapter而不是FragmentRenungan中使用它。

裏面FragmentRenunganBase，默認情況下膨脹FragmentRenungan。

Fragment fragment = null; 
    try { 
     fragment = new FragmentRenungan(); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
    FragmentManager fragmentManager = ((AppCompatActivity)getActivity()).getSupportFragmentManager(); 
    fragmentManager.beginTransaction().replace(R.id.container, fragment).commit();

fragment_renungan_base.xml（實施例）

<LinearLayout 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:orientation="vertical"> 

    <FrameLayout android:id="@+id/container" android:layout_width="match_parent" 
     android:layout_height="wrap_content"/> 
</LinearLayout>

手柄按鈕點擊在FragmentRenungan通過FragmentRenunganBase實現接口（片段通信：https://developer.android.com/training/basics/fragments/communicating.html#DefineInterface）在FragmentRenunganBase

裏面的界面的方法，膨脹/加上FragmentRenunganMonthly

Fragment fragment = null; 
    try { 
     fragment = new FragmentRenunganMonthly(); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
    FragmentManager fragmentManager = ((AppCompatActivity)getActivity()).getSupportFragmentManager(); 
    fragmentManager.beginTransaction().replace(R.id.container, fragment).commit();

來源

2016-05-31 19:23:39 Balamurugan

替換選項卡內的片段

回答

相關問題