如何设置在Android的achartengine线图的背景图像？ [英] How to set the background image for achartengine line chart in android?

问题描述

我使用achartengine到dispaly线图中我application.I需要添加背景图片图表，但是当我在XML中设置背景图片，它不工作。有没有人试过吗？先谢谢了。

I am using achartengine to dispaly the line chart in my application.I need to add the bg image for the chart , but when I set the bg image in xml , its not working. Have anyone tried this? Thanks in advance.

推荐答案

首先，您需要添加图表插入到你的活动，并设置preferred图片作为背景的​​活动布局。 （看看XYChartBuilder在AChartEngineneDemo来看看如何做到这一点）

Firstly, you need to add chart into your activity, and set preferred image as background in activity layout. (Take a look at XYChartBuilder in AChartEngineneDemo to see how to do that)

其次，设置透明的背景图和图表保证金：

Secondly, set transparent background for chart and chart margin:

mRenderer.setApplyBackgroundColor(true);
mRenderer.setBackgroundColor(Color.TRANSPARENT);
mRenderer.setMarginsColor(getResources().getColor(R.color.transparent_background));

最后，创建自己的透明背景，因为Color.TRANSPARENT不适合图表保证金工作：

Finally, create your own transparent background since the Color.TRANSPARENT doesn't work for chart margin:

<color name="transparent_background">#00FF0000</color>

希望这有助于:)

Hope this helps :)

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