データがgridView Androidに表示されない

Question

gridViewに表示するデータを読み込みたいとします。

エラーなく実行されます。ただし、画面は空白のままで、gridViewは表示されません。

は、ここに私のコードです

MainActivity.java

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    fragment f = new fragment(); 
    FragmentManager manager = getSupportFragmentManager(); 
    FragmentTransaction transaction = manager.beginTransaction(); 
    transaction.add(R.id.main_id,f).commit(); 

} 

fragment.java

public class fragment extends Fragment { 

    public final String [] Names={"Ahmed","Ahmed1","Ahmed2","Ahmed3","Ahmed4","Ahmed5","Ahmed6","Ahmed7","Ahmed8"}; 
    public final int [] Images={R.drawable.a,R.drawable.b,R.drawable.c,R.drawable.d,R.drawable.e,R.drawable.f,R.drawable.g,R.drawable.h}; 
    private CustomAdapter c; 
    private GridView g; 
    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     View view = inflater.inflate(R.layout.fragment_fragment, container, false); 
     c= new CustomAdapter(getActivity().getApplicationContext(),Names,Images); 

     g=(GridView) view.findViewById(R.id.gridview); 

     g.setAdapter(c); 

     g.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
      @Override 
      public void onItemClick(AdapterView<?> parent, View view, 
            int position, long id) { 
       Toast.makeText(getActivity().getApplicationContext(), "You Clicked at " + Names[+position], Toast.LENGTH_SHORT).show(); 

      } 
     }); 

     return view; 
    } 

カスタムアダプタ

public class CustomAdapter extends BaseAdapter { 

    private Context context; 
    private String[] Values; 
    private int[] imageIds; 

    public CustomAdapter(Context c, String[] Values, int[] imageIds) { 
     this.context = c; 
     this.Values = Values; 
     this.imageIds = imageIds; 
    } 


    @Override 
    public int getCount() { 
     return 0; 
    } 

    @Override 
    public Object getItem(int position) { 
     return null; 
    } 

    @Override 
    public long getItemId(int position) { 
     return 0; 
    } 

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

     LayoutInflater inflater = (LayoutInflater) context 
       .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

     View grid; 

      if(convertView==null) { 
       grid= new View (context); 
       grid = inflater.inflate(R.layout.item, null); 
       TextView textView = (TextView) grid.findViewById(R.id.itemName); 
       ImageView imageView = (ImageView) grid.findViewById(R.id.itemImage); 
       textView.setText(Values[position]); 
       imageView.setImageResource(imageIds[position]); 
      } 
      else { 
       grid = (View) convertView; 
      } 

     return grid; 
    } 
} 

fragment_fragment.xml

<GridView 
     android:numColumns="auto_fit" 
     android:gravity="center" 
     android:columnWidth="100dp" 
     android:stretchMode="columnWidth" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:id="@+id/gridview" 
     /> 

<ImageView 
     android:layout_width="50dp" 
     android:layout_height="50dp" 
     android:id="@+id/itemImage" 
     android:src="@drawable/a"/> 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:textAppearance="?android:attr/textAppearanceMedium" 
     android:text="item" 
     android:id="@+id/itemName" 
     android:layout_marginStart="10dp" 
     android:layout_marginLeft="10dp" 
     android:layout_marginTop="10dp" 
     /> 

Answer 1

getCount() item.xmlは、方法は、アダプタ内の項目の金額を返す必要があります0

を返している...ような何か：

@Override 
public int getCount() { 
    return this.Values.lenght; 
} 

をもちろん、ヌルチェックなどを追加することもできます。