ViewPagerのリストビューを作成する

Question

ViewPagerのリストを作成しようとしています。私は2 Adapter - ListViewのためにもう一つはViewPagerのために書きました。しかし、私は空リストを参照してくださいenter image description here。私はここに同じ方法で実装してみました：ここ Placing ViewPager as a row in ListView、 View Pager in listview? は私のレイアウトは以下のとおりです。

LISTVIEWレイアウト

<?xml version="1.0" encoding="utf-8"?> 
     <RelativeLayout 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" 
     android:paddingBottom="@dimen/activity_vertical_margin" 
     android:paddingLeft="@dimen/activity_horizontal_margin" 
     android:paddingRight="@dimen/activity_horizontal_margin" 
     android:paddingTop="@dimen/activity_vertical_margin" 
     tools:context="team14.cs442.com.dummytest.MainActivity"> 
     <ListView 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:id="@+id/ListView" 
      android:background="#e88585">  
     </ListView> 
    </RelativeLayout> 

PagerView：

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v4.view.ViewPager 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:id="@+id/pager" 
    android:longClickable="true" 
    xmlns:android="http://schemas.android.com/apk/res/android"> 
</android.support.v4.view.ViewPager> 

[表示] - 1：

<?xml version="1.0" encoding="utf-8"?> 
<TextView 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:id="@+id/image01" 
    android:src="@android:drawable/divider_horizontal_dark" 
    android:text="Hello" 
    xmlns:android="http://schemas.android.com/apk/res/android" /> 

ビュー-2：

<?xml version="1.0" encoding="utf-8"?> 
<TextView 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:id="@+id/image02" 
    android:src="@android:drawable/divider_horizontal_dark" 
    android:text="Goodbye" 
    xmlns:android="http://schemas.android.com/apk/res/android" /> 

コード一覧アダプタ：

class ListViewAdapter extends ArrayAdapter { 

Context context; 
int layoutId; 

public ListViewAdapter(Context context, int resource) { 
    super(context,R.layout.pagerview, list); 
    this.context = context; 
    this.layoutId = resource; 

} 

@Override 
public long getItemId(int position) { 
    return position; 
} 

@Override 
public int getCount() { 
    return list.size(); 
} 

@Override 
public Object getItem(int position) { 
    return list.get(position); 
} 

@Override 
public View getView(int position, View convertView, ViewGroup parent) { 

    if(convertView==null) 
    {LayoutInflater inflater = (LayoutInflater) context 
      .getSystemService(Activity.LAYOUT_INFLATER_SERVICE); 
    convertView = inflater.inflate(R.layout.pagerview, null);} 

    ViewPager viewPager = (ViewPager) convertView; 
    viewPager.setAdapter(new CustomAdapter(MainActivity.this)); 
    return convertView; 
} 

} 

ViewPager adapter: 

public class MainActivity extends AppCompatActivity implements 
     ItemFragment.OnListFragmentInteractionListener 

{ 
    int[] layouts = {R.layout.image01, R.layout.image02}; 
    ArrayList<String> list = new ArrayList<String>(); 
    ListViewAdapter adapter; 

    public class CustomAdapter extends PagerAdapter{ 

     Context mContext; 

     public CustomAdapter(Context context){ 
      mContext = context; 
     } 

     @Override 
     public Object instantiateItem(ViewGroup container, int position) { 
      LayoutInflater inflater = (LayoutInflater) container.getContext() 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

      View view = inflater.inflate(layouts[position],null); 
      container.addView(view, 0); 
      return view; 
     } 


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

     @Override 
     public int getCount() { 
      return 2; 
     } 

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

     @Override 
     public void notifyDataSetChanged() { 
      super.notifyDataSetChanged(); 
     } 

     @Override 
     public void finishUpdate(ViewGroup container) { 
      super.finishUpdate(container); 
      adapter.notifyDataSetChanged(); 

     } 
    } 


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

     list.add("A"); 
     list.add("B"); 
     list.add("C"); 
     list.add("D"); 
     list.add("E"); 

     ListView listView = (ListView) findViewById(R.id.ListView); 
     adapter = new ListViewAdapter(this, R.layout.pagerview); 
     listView.setAdapter(adapter); 
     adapter.notifyDataSetChanged(); 
    } 
} 

私はここで何をしないのですか？

Answer 1

コードを確認して少し修正しなければなりませんでした。

まず、pagerview.xmlを以下のように変更します。 ここでは、ページャービューの高さを指定する必要があります。

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" android:layout_width="match_parent" 
    android:layout_height="match_parent"> 

    <android.support.v4.view.ViewPager 
     android:id="@+id/pager" 
     android:layout_width="match_parent" 
     android:layout_height="200dp" 
     android:background="#ff3322" 
     android:longClickable="true"/> 
</LinearLayout> 

そして、以下のようにPagerAdapter変更：

public class CustomAdapter extends PagerAdapter { 

     Context mContext; 

     public CustomAdapter(Context context) { 
      mContext = context; 
     } 

     @Override 
     public Object instantiateItem(ViewGroup container, int position) { 
      LayoutInflater inflater = (LayoutInflater) container.getContext() 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

      View view = inflater.inflate(layouts[position], null, false); 
      container.addView(view); 
      return view; 
     } 


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

     @Override 
     public int getCount() { 
      return 2; 
     } 

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

     @Override 
     public void notifyDataSetChanged() { 
      super.notifyDataSetChanged(); 
     } 

     @Override 
     public void finishUpdate(ViewGroup container) { 
      super.finishUpdate(container); 
     } 
    } 

そしてListViewAdapter以下のように：

public class ListViewAdapter extends BaseAdapter { 
     Context context; 
     private ArrayList list; 

     public ListViewAdapter(Context context, ArrayList list) { 
      this.context = context; 
      this.list = list; 

     } 

     @Override 
     public long getItemId(int position) { 
      return position; 
     } 

     @Override 
     public int getCount() { 
      return list.size(); 
     } 

     @Override 
     public Object getItem(int position) { 
      return list.get(position); 
     } 

     @Override 
     public View getView(int position, View convertView, ViewGroup parent) { 

      if (convertView == null) { 
       LayoutInflater inflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE); 
       convertView = inflater.inflate(R.layout.pagerview, null, false); 
      } 

      ViewPager viewPager = (ViewPager) convertView.findViewById(R.id.pager); 
      viewPager.setAdapter(new MainActivity.CustomAdapter(context)); 
      return convertView; 
     } 
    } 

を最後に

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

     list.add("A"); 
     list.add("B"); 
     list.add("C"); 
     list.add("D"); 
     list.add("E"); 

     ListView listView = (ListView) findViewById(R.id.ListView); 
     ListViewAdapter adapter = new ListViewAdapter(this, list); 
     listView.setAdapter(adapter); 
    }