flex绘制不规则形状图形，并填充背景色

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protected function button1_clickHandler(event:MouseEvent):void

{

var gra:Graphics = drawCenter.graphics;

drawCenter.graphics.beginFill(0x000000);

drawCenter.graphics.lineStyle(5, 0xBBBBBB);

gra.moveTo(50,50);

gra.lineTo(500,500);?

gra.lineTo(200,400);

gra.lineTo(50,200);

gra.lineTo(50,50);

drawCenter.graphics.endFill();

}

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但是要注意graphics对应的UI的要有背景色设置或者backgroundAlpha设置，如果没有此属性，则可用Canvas控件