Frammenti Viewpager e frammenti normali

Question

Mi scuso in anticipo per il mio codice errato e cattiva conoscenza. Ho appena iniziato la codifica in Android e Java

Il mio problema è che ho un cassetto di navigazione e schede. Anche se scelgo qualcosa dal cassetto di navigazione che carica in un frammento non viene mostrato. Solo le schede stanno mostrando.

Il mio piano è che una scheda del cassetto di navigazione deve avere 3 schede all'interno e il resto solo pagine normali senza schede.

MainActivity.java

http://pastebin.com/TV7aWy9c

activity_main.xml

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v4.widget.DrawerLayout 
    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:id="@+id/drawer_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:fitsSystemWindows="true" 
    tools:openDrawer="start"> 

    <FrameLayout 
     android:id="@+id/fragment_layout" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:layout_weight="1" 
     android:background="#000000" /> 

    <include 
     layout="@layout/app_bar_main" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" /> 

    <android.support.design.widget.NavigationView 
     android:id="@+id/nav_view" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_gravity="start" 
     android:fitsSystemWindows="true" 
     app:headerLayout="@layout/nav_header_main" 
     app:menu="@menu/activity_main_drawer" /> 

</android.support.v4.widget.DrawerLayout> 

app_bar_main.xml

<?xml version="1.0" encoding="utf-8"?> 
<android.support.design.widget.CoordinatorLayout 
    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" 
    android:fitsSystemWindows="true" 
    tools:context="se.themeister.hello.MainActivity"> 

    <android.support.design.widget.AppBarLayout 
     android:layout_height="wrap_content" 
     android:layout_width="match_parent" 
     android:theme="@style/AppTheme.AppBarOverlay"> 

     <android.support.v7.widget.Toolbar 
      android:id="@+id/toolbar" 
      android:layout_width="match_parent" 
      android:layout_height="?attr/actionBarSize" 
      android:background="?attr/colorPrimary" 
      app:popupTheme="@style/AppTheme.PopupOverlay" /> 

     <android.support.design.widget.TabLayout 
      android:id="@+id/tab_layout" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_below="@+id/toolbar" 
      android:background="?attr/colorPrimary" 
      android:elevation="6dp" 
      android:minHeight="?attr/actionBarSize" 
      android:theme="@style/AppTheme.AppBarOverlay"/> 

     <android.support.v4.view.ViewPager 
      android:id="@+id/pager" 
      android:layout_width="match_parent" 
      android:layout_height="fill_parent" 
      android:background="#009900" 
      android:layout_below="@id/tab_layout"/> 

    </android.support.design.widget.AppBarLayout> 

    <include layout="@layout/content_main"/> 

    <android.support.design.widget.FloatingActionButton 
     android:id="@+id/fab" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_gravity="bottom|end" 
     android:layout_margin="@dimen/fab_margin" 
     android:src="@android:drawable/ic_dialog_email" /> 

</android.support.design.widget.CoordinatorLayout> 

Non so se questo è sufficiente o se ulteriori informazioni o il codice è necessario

Answer 1

Il problema con il codice è che il tuo ViewPager con TabLayout deve far parte dello Fragment, non parte dello Activity. E NavigationDrawer dovrebbe semplicemente sostituire un frammento con un altro nel viewport (cioè nel contenitore). Ora, nel tuo codice, stai cercando di inserire in qualche modo il tuo nuovo Fragment nello ViewPager.

Here's un applicazione molto semplice con navigazione cassetto, un frammento con schede e riposo frammenti senza linguette, che è possibile utilizzare come un esempio:

Activity.xml:

<android.support.v4.widget.DrawerLayout 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:id="@+id/drawer_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:fitsSystemWindows="true" 
    tools:openDrawer="start"> 

    <android.support.design.widget.CoordinatorLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:fitsSystemWindows="true"> 

     <android.support.design.widget.AppBarLayout 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:theme="@style/AppTheme.AppBarOverlay"> 

      <android.support.v7.widget.Toolbar 
       android:id="@+id/toolbar" 
       android:layout_width="match_parent" 
       android:layout_height="?attr/actionBarSize" 
       android:background="?attr/colorPrimary" 
       app:popupTheme="@style/AppTheme.PopupOverlay" /> 

     </android.support.design.widget.AppBarLayout> 

     <FrameLayout 
      android:id="@+id/fragmentContainer" 
      android:layout_marginTop="?attr/actionBarSize" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent"/> 

    </android.support.design.widget.CoordinatorLayout> 

    <android.support.design.widget.NavigationView 
     android:id="@+id/nav_view" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_gravity="start" 
     android:fitsSystemWindows="true" 
     app:headerLayout="@layout/nav_header_main" 
     app:menu="@menu/activity_main_drawer" />  
</android.support.v4.widget.DrawerLayout> 

Il codice nell'attività:

public class MainActivity extends AppCompatActivity 
     implements NavigationView.OnNavigationItemSelectedListener { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 

     DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); 
     ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
       this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close); 
     drawer.setDrawerListener(toggle); 
     toggle.syncState(); 

     NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); 
     navigationView.setNavigationItemSelectedListener(this); 

     getSupportFragmentManager().beginTransaction().replace(R.id.fragmentContainer, new FragmentWithTabs()).commit(); 
    } 

    @Override 
    public void onBackPressed() { 
     DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); 
     if (drawer.isDrawerOpen(GravityCompat.START)) { 
      drawer.closeDrawer(GravityCompat.START); 
     } else { 
      super.onBackPressed(); 
     } 
    } 

    @SuppressWarnings("StatementWithEmptyBody") 
    @Override 
    public boolean onNavigationItemSelected(MenuItem item) { 
     // Handle navigation view item clicks here. 
     int id = item.getItemId(); 

     if (id == R.id.fragment_1) { 
      getSupportFragmentManager().beginTransaction().replace(R.id.fragmentContainer, new FragmentWithTabs()).commit(); 
     } else if (id == R.id.fragment_2) { 
      getSupportFragmentManager().beginTransaction().replace(R.id.fragmentContainer, new FragmentWithoutTabs()).commit(); 
     } else if (id == R.id.fragment_3) { 
      getSupportFragmentManager().beginTransaction().replace(R.id.fragmentContainer, new Fragment()).commit(); 
     } 

     DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout); 
     drawer.closeDrawer(GravityCompat.START); 
     return true; 
    } 
} 

I.e., come vedete, sto sostituendo i frammenti nello FrameLayout con l'ID fragmentContainer.

Tutto logica relativa al frammento con le schede, incapsulato in FragmentWithTabs:

public class FragmentWithTabs extends Fragment { 

    @Nullable 
    @Override 
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { 
     View rootView = inflater.inflate(R.layout.fragment_with_tabs, container, false); 
     ViewPager viewPager = (ViewPager)rootView.findViewById(R.id.viewPager); 
     TabLayout tabLayout = (TabLayout)rootView.findViewById(R.id.tabLayout); 

     viewPager.setAdapter(new FragmentPagerAdapter(getChildFragmentManager()) { 
      @Override 
      public Fragment getItem(int position) { 
       return new SubFragment(position == 0? Color.BLUE : position == 1? Color.WHITE : Color.RED); 
      } 

      @Override 
      public CharSequence getPageTitle(int position) { 
       return position+""; 
      } 

      @Override 
      public int getCount() { 
       return 3; 
      } 
     }); 

     tabLayout.setupWithViewPager(viewPager); 
     return rootView; 
    } 
} 

spero, aiuta