安卓杂志架

Question

我必须创建应用程序的用户界面作为搁置杂志的架子。我正在使用自定义网格视图，网格元素由搁板上的缩略图作为背景图像组成。

shelf.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
     android:id="@+id/linearLayout1" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" > 

     <GridView 
      android:id="@+id/gridView1" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:numColumns="4" > 
     </GridView> 

    </LinearLayout> 

item.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
     android:id="@+id/linearLayout1" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:background="@drawable/grid"> 

     <ImageView 
      android:id="@+id/imageView1" 
      android:layout_width="70dp" 
      android:layout_height="100dp" 
      android:layout_alignParentBottom="true" 
      android:layout_centerHorizontal="true" 
      android:layout_marginBottom="41dp" 
      android:src="@drawable/book1" /> 

    </RelativeLayout> 

LibraryActivity.java

public class LibraryActivity extends Activity { 

    GridView grid = null; 
    ArrayList<Integer> image = new ArrayList<Integer>(); 
    ImageView thumbnail; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.shelf); 
     image.add(R.drawable.book1); 
     image.add(R.drawable.book2); 
     image.add(R.drawable.book3); 
     image.add(R.drawable.book4); 

     System.out.println("before adapter"); 
     grid = (GridView) findViewById(R.id.gridView1); 
     CustomAdapter adapter = new CustomAdapter(this, R.layout.item); 
     grid.setAdapter(adapter); 
    } 

    public class CustomAdapter extends BaseAdapter { 

     Context mContext = null; 
     int mitem = 0; 
     LayoutInflater mInflater = null; 

     public CustomAdapter(Context context, int item) { 

      this.mContext = context; 
      this.mitem = item; 
      this.mInflater = (LayoutInflater) context 
        .getSystemService(LAYOUT_INFLATER_SERVICE); 

     } 

     @Override 
     public int getCount() { 
      // TODO Auto-generated method stub 
      return image.size(); 
     } 

     @Override 
     public Object getItem(int position) { 
      // TODO Auto-generated method stub 
      return null; 
     } 

     @Override 
     public long getItemId(int position) { 
      // TODO Auto-generated method stub 
      return 0; 
     } 

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

      if (convertView == null) { 

       System.out.println("****CHECKING 2**********"); 
       convertView = mInflater.inflate(mitem, null); 
       System.out.println("****CHECKING 3**********"); 
       thumbnail = (ImageView) convertView 
         .findViewById(R.id.imageView1); 
       System.out.println("****CHECKING 3**********"); 

      } 

      thumbnail.setImageResource(image.get(position)); 

      return convertView; 
     } 

    } 

} 

但是使用这个代码库货架只被显示。我想显示空架子占据整个设备的屏幕。我怎样才能做到这一点？？ 有什么替代方法来实现货架？

Answer 1

有一个伟大的项目叫做Shelves，由Google的Romain Guy制作。你应该检查一下。