複数のフラグメントを含むタブレイアウトタブ

Question

5つのタブを持つタブレイアウトを使用するアプリケーションで作業しています。私の必要性は、すべてのタブ内で複数のフラグメントをナビゲートし、ユーザーが再びタブを再選択したときに最初のフラグメントを開くことです。私を助けてください。

TabLayout tabLayout = (TabLayout) findViewById(R.id.tabLayout); 
     tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.scene_tab_selector)); 
     tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.my_scene_tab_selector)); 
     tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.conversation_tab_selector)); 
     tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.notification_tab_selector)); 
     tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.more_tab_selector)); 
     tabLayout.setTabGravity(TabLayout.GRAVITY_FILL); 

     final ViewPager viewPager = (ViewPager) findViewById(R.id.pager); 
     final PagerAdaptor adapter = new PagerAdaptor 
       (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()); 
       tab.getIcon().setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN); 
       if(tab.getPosition()==4) 
       { 
//     pageTitleLabel.setText("My Profile"); 
       } 
      } 

      @Override 
      public void onTabUnselected(TabLayout.Tab tab) { 
       tab.getIcon().setColorFilter(Color.parseColor("#a8a8a8"), PorterDuff.Mode.SRC_IN); 

      } 

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


      } 
     }); 

public class PagerAdaptor extends FragmentStatePagerAdapter { 
    int mNumOfTabs; 


    public PagerAdaptor(FragmentManager fm, int NumOfTabs) { 
     super(fm); 
     this.mNumOfTabs = NumOfTabs; 

    } 

    @Override 
    public Fragment getItem(int position) { 

     switch (position) { 
      case 0: 
       Tab1ContainerFragment tab1 = new Tab1ContainerFragment(); 
       return tab1; 
      case 1: 
       MyCuddllFragment tab2 = new MyCuddllFragment(); 
       return tab2; 
      case 2: 
//    CuddllConversationFragment tab3 = new CuddllConversationFragment(); 
       ConversationFragment conversationFragment = new ConversationFragment(); 
       return conversationFragment; 

      case 3: 
//    CuddllNotificationsFragment tab4 = new CuddllNotificationsFragment(); 
       Tab4ContainerFragment notificationPageFragment = new Tab4ContainerFragment(); 
       return notificationPageFragment; 

      case 4: 
       MyProfileFragment tab5 = new MyProfileFragment(); 
       return tab5; 

      default: 
       return null; 
     } 
    } 

    @Override 
    public int getCount() { 
     return mNumOfTabs; 
    } 



} 

Answer 1

public void onTabSelected(TabLayout.Tab tab) { 

      tab.getIcon().setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_IN); 
      if(tab.getPosition()==0) 
      { 
       viewpager.setCurrentItem(0); 
      }else if(tab.getPosition()==1) 
      { 
       viewpager.setCurrentItem(1); 
      }else if(tab.getPosition()==2) 
      { 
       viewpager.setCurrentItem(2); 
      }else if(tab.getPosition()==3) 
      { 
       viewpager.setCurrentItem(3); 
      } 


     }