ViewGroup_caidan

最新推荐文章于 2018-05-18 15:50:00 发布

原创最新推荐文章于 2018-05-18 15:50:00 发布 · 504 阅读

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#android #layout #class

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/**
 * 
 * 类描述：
 *@author 
 * 2012-6-9
 */
public class MenuViewGroup extends GridView
{

    public MenuViewGroup(Context context)
    {
        super(context);
    }
    
    public MenuViewGroup(Context context, AttributeSet attrs)
    {
        super(context, attrs);
    }
    
    public MenuViewGroup(Context context, AttributeSet attrs, int defStyle)
    {
        super(context, attrs, defStyle);
    }

    @Override
    public void dispatchDraw(Canvas canvas)
    {
        Paint paint=new Paint();
        int count =getChildCount();
        int[] childWidth=new int[count];
        for(int i=0;i<count;i++)
        {
            if(i==0)
            {
                childWidth[i]=getChildAt(i).getWidth();
            }
            else
            {
                childWidth[i]= childWidth[i-1]+getChildAt(i).getWidth();
            }
                
            if(i < count - 1)
            {
                Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.menu_line);
                canvas.drawBitmap(bitmap, childWidth[i], 0, paint);
            }
        }
        super.dispatchDraw(canvas);
    }
}

Selector:

 <item android:drawable="@drawable/black_bg_select" android:state_pressed="true"/>
    <item android:drawable="@color/transparent_background"/>

xml

<com.jian.CaiViewGroup
        android:id="@+id/menu_gridView1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:scrollbars="none"
	android:fadingEdge="none"
	android:stretchMode="columnWidth" />