Невозможно просмотреть имена вкладок в макете вкладок с помощью viewpager в студии android

Question

Я разработал страницу, состоящую из панели инструментов с tablayout и viewpager. на этих страницах используется стиль Theme.AppCompat.Light.NoActionBar как тема приложения amin. Все работает нормально, я могу просматривать страницы слайдов страниц, кроме того, что я не могу просмотреть имена вкладок в tablayout. Пожалуйста, любой один помочь мне, я использую Android Studio 2.2.1

Xml дизайн код страницы является:

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 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:orientation="vertical" 
tools:context=".MainActivity"> 

<android.support.v7.widget.Toolbar 
android:id="@+id/toolbar" 
android:layout_width="match_parent" 
android:layout_height="35dp" 
android:layout_alignParentTop="true" 
android:background="?attr/colorPrimary" 
android:elevation="6dp" 
android:minHeight="?attr/actionBarSize" 
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" 
app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/> 


<android.support.v4.widget.DrawerLayout 
android:id="@+id/drawer_layout" 
android:layout_gravity="end" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
> 


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

<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/ThemeOverlay.AppCompat.Dark.ActionBar" 
style="@style/CustomTabLayoutStyle"/> 

<android.support.v4.view.ViewPager 
xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@+id/pager" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 

/> 

</LinearLayout> 


<RelativeLayout 
android:id="@+id/left_drawer" 
android:layout_width="240dp" 
android:layout_height="match_parent" 
android:layout_gravity="end" 
android:background="#CC194740" 
android:orientation="vertical" > 

<LinearLayout 
android:layout_width="240dp" 
android:layout_height="wrap_content" 
android:layout_marginLeft="0dp" 
android:gravity="center_vertical" 
android:background="#328e80" 
android:orientation="horizontal" > 

<ImageView 
android:id="@+id/image_view" 
android:layout_width="50dp" 
android:layout_height="50dp" 
android:layout_margin="10dp" 
/> 

<TextView 
android:id="@+id/userName" 
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:layout_marginLeft="5dp"   
android:textColor="#fff" 
android:textSize="16sp" 
android:textStyle="bold" /> 

</LinearLayout> 

<ListView android:id="@+id/drawer_list" 
android:layout_width="240dp" 
android:layout_height="match_parent" 
android:layout_marginTop="70dp" 
android:layout_gravity="end" 
android:choiceMode="singleChoice" 
android:divider="@android:color/transparent" 
android:dividerHeight="0dp" 
/> 
</RelativeLayout> 

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


</LinearLayout> 

Java-код этой конструкции XML является

---

package info.sants_thapal; 




import android.support.v7.widget.Toolbar; 
import android.support.design.widget.TabLayout; 
import android.support.v4.view.ViewPager; 
import android.support.design.widget.TabLayout.TabLayoutOnPageChangeListener; 
import android.app.AlertDialog; 
import android.app.FragmentTransaction; 
import android.app.ProgressDialog; 
import android.content.ContentResolver; 
import android.content.Context; 
import android.content.DialogInterface; 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.content.res.TypedArray; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.os.Handler; 
import android.provider.Settings; 
import android.support.v4.app.ActionBarDrawerToggle; 

import android.support.v4.app.FragmentTabHost; 

import android.support.v4.widget.DrawerLayout; 
import android.support.v7.app.AppCompatActivity; 

import android.util.Log; 
import android.view.Gravity; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuInflater; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.AdapterView; 
import android.widget.AdapterView.OnItemClickListener; 
import android.widget.AdapterView.OnItemSelectedListener; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.ImageView; 
import android.widget.ListView; 
import android.widget.PopupWindow; 
import android.widget.RelativeLayout; 
import android.widget.SimpleAdapter; 
import android.widget.Spinner; 


import android.widget.TextView; 
import android.widget.Toast; 


import com.squareup.picasso.Picasso; 

import org.apache.http.NameValuePair; 
import org.apache.http.message.BasicNameValuePair; 
import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 

import java.util.ArrayList; 
import java.util.HashMap; 
import java.util.List; 

import info.sants_thapal.CustomGridViewAdapter.ViewHolder; 

import static android.provider.Settings.System.AIRPLANE_MODE_ON; 

public class Social extends AppCompatActivity implements OnItemSelectedListener { 


    private static final String TAB_5_TAG = null; 


    // Tab titles 
    private String[] tabs = {"Life", "Friends", "Groups"}; 

    SharedPreferences sPref; 
    Button login; 
    String session_email = "", session_type = "", session_st, session_ph, session_loc; 
    //TabHost tabHost1; 
    ArrayList<HashMap<String, Object>> usersList, usersList1; 

    int imageId; 
    ImageView imageView; 
    TextView text, tv, tv2, tv3; 
    DrawerLayout mDrawerLayout; 
    String namess, counta; 
    // ListView represents Navigation Drawer 
    ListView mDrawerList, mDrawerList1; 
    private RelativeLayout mDrawerRelativeLayout; 
    // ActionBarDrawerToggle indicates the presence of Navigation Drawer in the action bar 
    ActionBarDrawerToggle mDrawerToggle; 

    Handler mHandler; 
    Runnable refresh; 

    Context mcontext; 
    String o, n, afsa; 
    int abd2; 
    private Button mSubmit; 
    RelativeLayout notifCount, notifCount2, notifCount3; 
    private PopupWindow pwindo; 
    MenuItem item, item2, item3; 

    ViewHolder viewholder; 


    List<HashMap<String, String>> aList; 

    public String[] namesaram, countrycodes; 
    private TypedArray imgs; 


    // Title of the action bar 
    String mTitle = ""; 
    static String IP = IpAddress.Ip; 
    private String PRE_IMAGE2 = IP + "/images/procover/"; 
    private static String url_all_properties = IP + "/social/pic2.php"; 

    private static String url_all_properties3 = IP + "/social/coun.php"; 

    private static String url_all_properties5 = IP + "/social/coun2.php"; 

//private static String url_all_properties6 = IP+"/social/coun6.php"; 

    private static String url_all_properties303 = IP + "/social/logou.php"; 

    private static String url_all_properties99 = IP + "/social/spanfspinpost.php"; 
    private static String url_all_properties2 = IP + "/social/spanfspinpost2.php"; 

    private static String url_all_properties999 = IP + "/social/spanfspinpost3.php"; 

    private static String url_create_product = IP + "/social/save.php"; 


    private static final String TAG_SUCCESS = "success"; 
    //private static final String TAG_SUCCESS1 = "mass"; 
    private static final String TAG_USER = "users"; 
    JSONParser jParser = new JSONParser(); 
    //private String PRE_IMAGE = IP+"/upload/"; 
    private static final String TAG_PRO = "propertiesgfdfgd"; 
    private static final String TAG_PRO2 = "properties"; 

    private static final String LOG_TAG = null; 
    protected static final int NUM_THREADS = 0; 
    //private static final String TAG_PRO1 = "properties1"; 
// products JSONArray 
    JSONArray users = null; 
    //JSONArray users1 = null; 
    JSONParser jsonParser = new JSONParser(); 
    int abu, abd; 
    private FragmentTabHost mTabHost; 


    View layout; 
    TabLayout tabLayout; 
    ViewPager viewPager; 
    /** 
    * ATTENTION: This was auto-generated to implement the App Indexing API. 
    * See https://g.co/AppIndexing/AndroidStudio for more information. 
    */ 


/*public class ViewHolder 
{ 

TextView tv,tv2; 


}*/ 


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

     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 

     sPref = this.getSharedPreferences("REAL", Context.MODE_PRIVATE); 
// intent=getIntent(); 
     session_email = sPref.getString("SESSION_UID", ""); 
     session_ph = sPref.getString("SESSION_PH", ""); 
     session_type = sPref.getString("SESSION_TYPE", ""); 
     session_st = sPref.getString("SESSION_STAT", ""); 
     session_loc = sPref.getString("SESSION_LOC", ""); 

     //private String[] tabs = {"Life", "Friends", "Groups"}; 
     tabLayout = (TabLayout) findViewById(R.id.tab_layout); 

         tabLayout.addTab(tabLayout.newTab().setText("Life")); 
         tabLayout.addTab(tabLayout.newTab().setText("Friends")); 
         tabLayout.addTab(tabLayout.newTab().setText("Groups")); 



     tabLayout.setTabGravity(TabLayout.GRAVITY_FILL); 

viewPager = (ViewPager) findViewById(R.id.pager); 
     TabsPagerAdapter mAdapter = new TabsPagerAdapter(getSupportFragmentManager(), tabLayout.getTabCount()); 


     viewPager.setAdapter(mAdapter); 

     viewPager.addOnPageChangeListener(new TabLayoutOnPageChangeListener(tabLayout)); 


     tabLayout.post(new Runnable() { 
     @Override 
     public void run() { 


      tabLayout.setupWithViewPager(viewPager); 
     } 
     }); 

     //tabLayout.setupWithViewPager(viewPager); 
     tabLayout.setOnTabSelectedListener(new TabLayout.ViewPagerOnTabSelectedListener(viewPager) { 
     @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) { 

     } 
     }); 




    } 
} 

Код другого класса для вызова вкладок TabsPagerAdapter.java

package info.sants_thapal; 


import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentStatePagerAdapter; 


public class TabsPagerAdapter extends FragmentStatePagerAdapter { 

    int mNumOfTabs; 

    public TabsPagerAdapter(FragmentManager fm, int NumOfTabs) { 

     super(fm); 
     this.mNumOfTabs = NumOfTabs; 

    } 

    @Override 
    public Fragment getItem(int index) { 

     switch (index) { 
     case 0: 
      // Top Rated fragment activity 
      TabFragment1 tab1 = new TabFragment1(); 
      return tab1; 
     case 1: 
      // Games fragment activity 
      TabFragment2 tab2 = new TabFragment2(); 
      return tab2; 
     case 2: 
      // Movies fragment activity 
      TabFragment3 tab3 = new TabFragment3(); 
      return tab3; 
      default: 
       return null; 
     } 


    } 

    @Override 
    public int getCount() { 
     // get item count - equal to number of tabs 
     return mNumOfTabs; 
    } 

    public void clear() { 
     // TODO Auto-generated method stub 

    } 

} 

Построить .grade файл minsdkversion 21 целевой SDK версии 22

compile 'com.android.support:appcompat-v7:24.2.1' 
compile 'com.android.support:design:24.2.1' 

Answer 1

Override этот метод в TabsPagerAdapter.java назвать имя вкладки.

private String[] tabTitles = new String[]{"Tab1", "Tab2", "Tab3"}; 
public CharSequence getPageTitle(int position) { 
    return tabTitles[position]; 
} 

Это может вам помочь.