ImageView在橫向模式下

Question

當改變到橫向模式時，我遇到了顯示imageView的問題。

首先，我在這樣的佈局中使用了ImageView。

<ImageView 
    android:id="@+id/img_gallery" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:contentDescription="@string/img_des" 
    android:scaleType="fitcenter"/> 

它在橫向和縱向模式下工作正常。但Imageview沒有填充佈局。 所以我添加布局一行來顯示圖像填充：

<ImageView 
    android:id="@+id/img_gallery" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:contentDescription="@string/img_des" 
    android:scaleType="fitCenter" 
    android:adjustViewBounds="true"/> 

它在肖像工作的罰款（機器人adjustViewBounds =「真」），但景觀只是顯示一個空白。

其次，我嘗試使用ResizableImageView。

public class ResizableImageView extends ImageView { 

    public ResizableImageView(Context context, AttributeSet attrs) { 
     super(context, attrs); 
    } 

    @Override 
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 
     Drawable drawable = getDrawable(); 
     if (drawable != null) { 
      int width = MeasureSpec.getSize(widthMeasureSpec); 
      int diw = drawable.getIntrinsicWidth(); 
      if (diw > 0) { 
       int height = width * drawable.getIntrinsicHeight()/diw; 
       setMeasuredDimension(width, height); 
      } else 
       super.onMeasure(widthMeasureSpec, heightMeasureSpec); 
     } else 
      super.onMeasure(widthMeasureSpec, heightMeasureSpec); 
    } 
} 

和佈局：

<com.ourteamapp.others.ResizableImageView 
    android:id="@+id/imdg_gallery" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:contentDescription="@string/img_des" 
    android:scaleType="fitCenter" 
    android:adjustViewBounds="true"/> 

仍然有同樣的問題。有任何想法嗎？

Answer 1

請使用GridView，它會工作。

<?xml version="1.0" encoding="utf-8"?> 
<GridView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/gridview" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:columnWidth="90dp" 
    android:numColumns="auto_fit" 
    android:verticalSpacing="10dp" 
    android:horizontalSpacing="10dp" 
    android:stretchMode="columnWidth" 
    android:gravity="center" 
/> 

主要活動

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    GridView gridview = (GridView) findViewById(R.id.gridview); 
    gridview.setAdapter(new ImageAdapter(this)); 

    gridview.setOnItemClickListener(new OnItemClickListener() { 
     public void onItemClick(AdapterView<?> parent, View v, int position, long id) { 
      Toast.makeText(HelloGridView.this, "" + position, Toast.LENGTH_SHORT).show(); 
     } 
    }); 
} 

圖片適配器

public class ImageAdapter extends BaseAdapter { 
    private Context mContext; 

    public ImageAdapter(Context c) { 
     mContext = c; 
    } 

    public int getCount() { 
     return mThumbIds.length; 
    } 

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

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

    // create a new ImageView for each item referenced by the Adapter 
    public View getView(int position, View convertView, ViewGroup parent) { 
     ImageView imageView; 
     if (convertView == null) { // if it's not recycled, initialize some attributes 
      imageView = new ImageView(mContext); 
      imageView.setLayoutParams(new GridView.LayoutParams(85, 85)); 
      imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); 
      imageView.setPadding(8, 8, 8, 8); 
     } else { 
      imageView = (ImageView) convertView; 
     } 

     imageView.setImageResource(mThumbIds[position]); 
     return imageView; 
    } 

    // references to our images 
    private Integer[] mThumbIds = { 
      R.drawable.sample_2, R.drawable.sample_3, 
      R.drawable.sample_4, R.drawable.sample_5, 
      R.drawable.sample_6, R.drawable.sample_7, 
      R.drawable.sample_0, R.drawable.sample_1, 
      R.drawable.sample_2, R.drawable.sample_3, 
      R.drawable.sample_4, R.drawable.sample_5, 
      R.drawable.sample_6, R.drawable.sample_7, 
      R.drawable.sample_0, R.drawable.sample_1, 
      R.drawable.sample_2, R.drawable.sample_3, 
      R.drawable.sample_4, R.drawable.sample_5, 
      R.drawable.sample_6, R.drawable.sample_7 
    }; 
} 

來源http://developer.android.com/guide/topics/ui/layout/gridview.html#example