Question

在为图表构成部分执行数据提供人时,它重新绘制了图表。

我如何决定何时重开图表?

在完全抽取时,我想对海图打一只平板。

Answer 1

You should wait until chart finishes its rendering. After the code, which performs redrawing logic is executed, FlexEvent.UPDATE_COMPLETE is dispatched. And you can see redrawn chart on the next screen update. Try the following code:

private function someFunc():void
{
    //YOU RE HERE BEFORE CALLING REFRESH
    dataprovider.refresh();
    chart.addEventListener(FlexEvent.UPDATE_COMPLETE, onUpdate);
}

private function onUpdate(event:FlexEvent):void
{
    chart.removeEventListener(FlexEvent.UPDATE_COMPLETE, onUpdate);
    callLater(takeScreenshot);
}

private function takeScreenshot():void
{
    //TAKE SCREENSHOT LOGIC HERE
}

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