查看寻呼机不显示内容

Question

我是Android的新手，我在浏览寻呼机布局中查看我的视图内容时遇到问题。以下是我的活动和适配器在同一个文件和ViewPager xml以及详细信息上 my detail.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>

我的 viewPager.xml 文件包含以下内容

 <?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>

我的活动类具有以下代码，并且还包含适配器类 代码如下

        public class AddEdit extends AppCompatActivity

               {





              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);


          }
        @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);
        }


}


   public class pageViewAdapter1 extends PagerAdapter {
    Context context;

    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) {
    private 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

        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);
       }
        }

         }      

有人可以告诉我为什么在我给他们充气之后我不会在detail.xml中看到小部件。请尝试理解我只是初学者想要学习。谢谢