我的应用程序需要图形库，我使用achartengine图形库。我的应用程序需要图形是只有50％的画面和另一部分用于显示一些其它信息。

My application requires graph library and I am using achartengine graph library. My app requires graph to be only 50% of the screen and other part is used to display some other information.

是否有可能对XML的资源文件achartengine的图形API以及如何做到这一点？

Is it possible have xml resource file for achartengine's graph APIs and how to do it?

我试图找到一个例子，但没有找到它。它是支持或不？

I tried to find an example but didn't find it. Is it supported or not?

推荐答案

这是一个常见问题AChartEngine。 该AChartEngine演示应用可以在这里下载： AChartEngine演示

This is a FAQ for AChartEngine. The AChartEngine demo application is available for download here: AChartEngine demo

在演示源$ C ​​$ C，你可以看到如何将图表嵌入到现有的图的实例。

In the demo source code you can see an example on how to embed a chart into an existing view.

基本上，在活动描述符.xml文件，我们定义了以下内容作为一个占位符图。当然，其他用户界面组件用这个布局走在一起：

Basically, in the activity descriptor .xml file, we have defined the following as a placeholder for the chart. Of course, other user interface components go together with this layout:

ChartDemo /布局/ xy_chart.xml号线附近27

<LinearLayout
    android:id="@+id/chart"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:orientation="horizontal" />

我们定义了一个局部变量：

We define a local variable:

ChartDemo / src目录/ org.achartengine.chartdemo.demo.chart / XYChartBuilder.java号线附近68 的

private GraphicalView mChartView;

我们将它实例上的活动的onResume（）方法：

We instantiate it on the onResume() method of the activity:

ChartDemo / src目录/ org.achartengine.chartdemo.demo.chart / XYChartBuilder.java近163线的

protected void onResume() {
  super.onResume();
  if (mChartView == null) {
    LinearLayout layout = (LinearLayout) findViewById(R.id.chart);
    mChartView = ChartFactory.getLineChartView(this, mDataset,
mRenderer);
    layout.addView(mChartView, new LayoutParams
(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
    ...
  } else {
    mChartView.repaint();
  }
}

每当新数据添加在用户presses添加按钮，在我们的情况下，一个新的点被添加在当前系列（：

Whenever new data is added (when the user presses the "Add" button in our case, a new point is added in the current series and:

ChartDemo / src目录/ org.achartengine.chartdemo.demo.chart / XYChartBuilder.java近147线的

if (mChartView != null) {
  mChartView.repaint();
}