public class MyGridView extends GridView {  
  public MyGridView(Context context, AttributeSet attrs) {  
    super(context, attrs);  
  }  
  public MyGridView(Context context) {  
    super(context);  
  }  
  public MyGridView(Context context, AttributeSet attrs, int defStyle) {  
    super(context, attrs, defStyle);  
  }  
  @Override  
  public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {  
    int expandSpec = MeasureSpec.makeMeasureSpec(  
        Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);  
    super.onMeasure(widthMeasureSpec, expandSpec);  
  }  
}  

<ScrollView Android:layout_height="wrap_content"  
    Android:layout_width="fill_parent" android:id="@+id/scroll_content">  
    <com.yourclass.MyGridView xmlns:Android="http://schemas.android.com/apk/res/android"  
      Android:id="@+id/grid_view" android:layout_width="fill_parent"  
      Android:layout_height="wrap_content" android:numColumns="auto_fit"  
      Android:horizontalSpacing="1dip" android:verticalSpacing="1dip"  
      Android:columnWidth="150dip" android:stretchMode="columnWidth"  
      Android:gravity="center">  
        
    </com.yourclass.MyGridView>  
  </ScrollView>  

MyGridView gridview = (MyGridView) findViewById(R.id.grid_view);  
gridview.setAdapter(new ImageAdapter（));