如何在Android網格視圖中設置自定義縱橫比？

Question

我想爲gridview設置3：2的比率（每個單元格的IE 300像素數爲200）。這裏是我的形象適配器：

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(200, 200)); 
      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.image1, R.drawable.image2, R.drawable.image3, 
    }; 
} 

我試着調整imageView.setLayoutParams(new GridView.LayoutParams(200, 200));寬度參數300，但它會導致重疊。這裏是我的XML文件：

<GridView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/gridview" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:columnWidth="90dp" 
    android:numColumns="auto_fit" 
    android:verticalSpacing="10dp" 
    android:horizontalSpacing="10dp" 
    android:stretchMode="columnWidth" 
    android:gravity="center" 
    /> 

古怪的重疊：

Answer 1

您好，您可以嘗試像這樣從你的活動：

ViewGroup.LayoutParams layoutParams = gridview.getLayoutParams(); 
layoutParams.height = 200; 
layoutParams.width = 300; 
gridview.setLayoutParams(layoutParams); 

或

int final width = 300; 
int final height = 200; 
ViewGroup.LayoutParams lauoutParams = new ViewGroup.LayoutParams(width,height); 
gridView.setLayoutParams(lp); 

這可能有幫助。

Answer 2

發現這個庫：AsymetricGridView