protected boolean getchildstatictransformation(view child, transformation trans)     { 　　　　 //图像的中心点和宽度         final int childcenter = getcenterofview(child);         final int childwidth = child.getwidth();         int rotationangle = 0,

  。

        trans.clear();         trans.settransformationtype(transformation.type_both);        // alpha 和 matrix 都变换 。

        if (childcenter == mcoveflowcenter)         {    　　　　　　  // 正中间的childview             transformimagebitmap((imageview) child, trans, 0);            }         else         {        　　　　　　  // 两侧的childview             rotationangle = (int) ( ( (float) (mcoveflowcenter - childcenter) / childwidth ) * mmaxrotationangle );             if (math.abs(rotationangle) > mmaxrotationangle)             {                 rotationangle = (rotationangle < 0) ? -mmaxrotationangle : mmaxrotationangle;             } 　　　　　　　//根据偏移角度对图片进行处理，看上去有3d的效果。             transformimagebitmap((imageview) child, trans, rotationangle);         } 。

        return true;     } 。

public boolean createreflectedforadapter()     {         final int reflectiongap = 4;         final int height = 200;         int index = 0;         for (map<string, object> map : list)         {             integer id = (integer) map.get("image");             // 获取原始图片             bitmap originalimage = bitmapfactory.decoderesource(mcontext.getresources(), id);                int width = originalimage.getwidth();             int height = originalimage.getheight();             float scale = height / (float)height;             matrix smatrix = new matrix();             smatrix.postscale(scale, scale);             bitmap minibitmap = bitmap.createbitmap(originalimage, 0, 0,                     originalimage.getwidth(), originalimage.getheight(), smatrix, true);             //是否原图片数据，节省内存             originalimage.recycle(),

  。

            int mwidth = minibitmap.getwidth();             int mheight = minibitmap.getheight();             matrix matrix = new matrix();             // 图片矩阵变换（从低部向顶部的倒影）             matrix.prescale(1, -1);                        // 截取原图下半部分             bitmap reflectionimage = bitmap.createbitmap(minibitmap, 0, mheight/2, mwidth, mheight/2, matrix, false);             // 创建倒影图片（高度为原图3/2）             bitmap bitmapwithreflection = bitmap.createbitmap(mwidth, (mheight + mheight / 2), config.argb_8888);                // 绘制倒影图（原图 + 间距 + 倒影）             canvas canvas = new canvas(bitmapwithreflection);                // 绘制原图             canvas.drawbitmap(minibitmap, 0, 0, null);                    paint paint = new paint();             // 绘制原图与倒影的间距             canvas.drawrect(0, mheight, mwidth, mheight + reflectiongap, paint);             // 绘制倒影图             canvas.drawbitmap(reflectionimage, 0, mheight + reflectiongap, null);    。

            paint = new paint();             // 线性渐变效果             lineargradient shader = new lineargradient(0, minibitmap.getheight(), 0, bitmapwithreflection.getheight()                     + reflectiongap, 0x70ffffff, 0x00ffffff, tilemode.clamp);             paint.setshader(shader);                // 倒影遮罩效果             paint.setxfermode(new porterduffxfermode(mode.dst_in));                    // 绘制倒影的阴影效果             canvas.drawrect(0, mheight, mwidth, bitmapwithreflection.getheight() + reflectiongap, paint);                    imageview imageview = new imageview(mcontext); 　　　　　　  // 设置倒影图片             imageview.setimagebitmap(bitmapwithreflection);                    imageview.setlayoutparams(new galleryview.layoutparams((int)(width * scale),                     (int)(mheight * 3 / 2.0 + reflectiongap)));             imageview.setscaletype(scaletype.matrix);             mimages[index++] = imageview;         }         return true;     } 。