Android view pager не раздувает виджеты в моей вкладке XML

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I am new to android and I am having problem viewing my view contents in view pager layout. the following is my actiivity and adapter togather on the same file and the the viewpager xml and the details.

my details.xml


        <FrameLayout android:id="@+id/detailsScrollView"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto">



   <GridLayout
       android:layout_width="match_parent"
       android:layout_height="wrap_content"

       android:useDefaultMargins="true"
       android:paddingTop="70dp">

      <TextView
          android:id="@+id/nameLabelTextView1"
          style="@style/ContactLabelTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="0"
          android:layout_row="0"
          android:text="@string/label_name"/>

           <TextView
          android:id="@+id/nameTextView1"
          style="@style/ContactTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="1"
          android:layout_row="0"/>

      <TextView
          android:id="@+id/phoneLabelTextView1"
          style="@style/ContactLabelTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="0"
          android:layout_row="1"
          android:text="@string/label_phone"/>

      <TextView
          android:id="@+id/phoneTextView1"
          style="@style/ContactTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="1"
          android:layout_row="1"/>

      <TextView
          android:id="@+id/emailLabelTextView1"
          style="@style/ContactLabelTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="0"
          android:layout_row="2"
          android:text="@string/label_email"/>

      <TextView
          android:id="@+id/emailTextView1"
          style="@style/ContactTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="1"
          android:layout_row="2"/>

      <TextView
          android:id="@+id/streetLabelTextView1"
          style="@style/ContactLabelTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="0"
          android:layout_row="3"
          android:text="@string/label_street"/>

      <TextView
          android:id="@+id/streetTextView1"
          style="@style/ContactTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="1"
          android:layout_row="3"/>

      <TextView
          android:id="@+id/cityLabelTextView1"
          style="@style/ContactLabelTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="0"
          android:layout_row="4"
          android:text="@string/label_city"/>

      <TextView
          android:id="@+id/cityTextView1"
          style="@style/ContactTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="1"
          android:layout_row="4"/>

      <TextView
          android:id="@+id/stateLabelTextView1"
          style="@style/ContactLabelTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="0"
          android:layout_row="5"
          android:text="@string/label_state"/>

      <TextView
          android:id="@+id/stateTextView1"
          style="@style/ContactTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="1"
          android:layout_row="5"/>

      <TextView
          android:id="@+id/zipLabelTextView1"
          style="@style/ContactLabelTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="0"
          android:layout_row="6"
          android:text="@string/label_zip"/>

      <TextView
          android:id="@+id/zipTextView1"
          style="@style/ContactTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_column="1"
          android:layout_row="6"/>
   </GridLayout>

</FrameLayout>

                 

my viewPager xml file has the following contents



     <?xml version="1.0" encoding="utf-8"?>
    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:fitsSystemWindows="true"
    android:id="@+id/addEdit">

    <android.support.v7.widget.Toolbar
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/toolbar1"
    android:background="?attr/colorPrimary"
    app:popupTheme="@style/AppTheme.PopupOverlay"
    ></android.support.v7.widget.Toolbar>


    <android.support.v4.view.ViewPager
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/slide"
        android:visibility="visible">

    </android.support.v4.view.ViewPager>


</FrameLayout>




my activity class has the following codes and also contain the adapter class
and the code is as follows
           
            public class AddEdit extends AppCompatActivity

                   {

                  private static final int CONTACT_LOADER = 0; //

                  private Uri contactUri;

                  private SQLiteDatabase mDatabase;
                  private Context mContext;

                  ViewPager mViewPager;
                  pageViewAdapter1 slider;



                  List<Info> informatn = new ArrayList<>();

                 @Override
                 protected void onCreate(Bundle savedInstanceState) 
                   {
                super.onCreate(savedInstanceState);
               setContentView(R.layout.activity_add_edit);
               Toolbar tool=(Toolbar) findViewById(R.id.toolbar1);
              mViewPager=(ViewPager) findViewById(R.id.slide);
               slider=new pageViewAdapter1(this);
              mViewPager.setAdapter(slider);
              setSupportActionBar(tool);
               // load the contac
                              // 
                getSupportLoaderManager().initLoader(
                CONTACT_LOADER, null, 
                  this);

              }
            @Override
            public boolean onCreateOptionsMenu(Menu menu) {
                MenuInflater findMenuItems = getMenuInflater();
                findMenuItems.inflate(R.menu.fragment_details_menu, menu);
                return super.onCreateOptionsMenu(menu);
            }


            @Override
            public boolean onOptionsItemSelected(MenuItem item) {
                switch (item.getItemId()) {
                    case R.id.action_delete:
                        Toast.makeText(AddEdit.this,"delete 
              ",Toast.LENGTH_LONG).show();
                        break;
                    case R.id.action_edit:
                        finish();
                        break;
                }
                return super.onOptionsItemSelected(item);
            }

      private ACursorWrapper queryInfo(String whereClause, String[] whereArgs){
        mContext=getApplicationContext();
        mDatabase = new AddressBookDatabaseHelper(mContext)
                .getWritableDatabase();
        Cursor cursor = mDatabase.query(
                DatabaseDescription.Contact.TABLE_NAME,
                null, // columns - null selects all columns
                whereClause,
                whereArgs,
                null, // groupBy
                null, // having
                null // orderBy
        );
        return new ACursorWrapper(cursor);
    }

      public List<Info> getInfos() {

        List<Info> information = new ArrayList<>();
        ACursorWrapper cursor = queryInfo(null, null);
        try {
            cursor.moveToFirst();
            while (!cursor.isAfterLast()) {
                information.add(cursor.getInfo());
                cursor.moveToNext();
            }
        } finally {
            cursor.close();
        }
        return information;
      }


      public Info getInfo(int id) {

        ACursorWrapper cursor = queryInfo(
                DatabaseDescription.Contact._ID + " = ?",
                new String[] { id+"" }
        );
        try {
            if (cursor.getCount() == 0) {
                return null;
            }
            cursor.moveToFirst();
            return cursor.getInfo();
        } finally {
            cursor.close();
        }
    }


       public class pageViewAdapter1 extends PagerAdapter {
        Context context;
        LayoutInflater mInflater;
        private TextView nameTextView; // displays contact's name
        private TextView phoneTextView; // displays contact's phone
        private TextView emailTextView; // displays contact's email
        private TextView streetTextView; // displays contact's street
        private TextView cityTextView; // displays contact's city
        private TextView stateTextView; // displays contact's state
        private TextView zipTextView; // displays contact's zip

        public pageViewAdapter1(Context context) {
            this.context = context;
        }

        @Override

        public int getCount() {
            return informatn.size();
        }

        @Override
        public boolean isViewFromObject(View view, Object object) {
            return (view==(View)object);
        }

        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            mInflater=(LayoutInflater) 
       context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View item_view=mInflater.inflate(R.layout.detail,container,false);

            // get the EditTexts
            nameTextView = (TextView) 
       item_view.findViewById(R.id.nameTextView1);
            phoneTextView = (TextView) 
             item_view.findViewById(R.id.phoneTextView1);
            emailTextView = (TextView) 
             item_view.findViewById(R.id.emailTextView1);
            streetTextView = (TextView) 
            item_view.findViewById(R.id.streetTextView1);
            cityTextView = (TextView) 
             item_view.findViewById(R.id.cityTextView1);
            stateTextView = (TextView) 
           item_view.findViewById(R.id.stateTextView1);
            zipTextView = (TextView) item_view.findViewById(R.id.zipTextView1);

            informatn=getInfos();

            nameTextView.setText(informatn.get(position).name);
            phoneTextView.setText(informatn.get(position).phone);
            emailTextView.setText(informatn.get(position).eamil);
            streetTextView.setText(informatn.get(position).street);
            cityTextView.setText(informatn.get(position).City);
            stateTextView.setText(informatn.get(position).state);
            zipTextView.setText(informatn.get(position).zip);


            container.addView(item_view);

            return item_view;


              }

            @Override
            public void destroyItem(ViewGroup container, int position, Object 
             object) {
            container.removeView((FrameLayout)object);
           }
            }

             }      













could some one tell me why I don't see widgets in detail.xml after I inflated them.Please try to understand that I am just beginner trying to learn. thank you

Что я уже пробовал:

когда я запускаю код виджеты в detail.xml не надуваются.

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