Graphiew中的ArrayList [英] ArrayList in Graphiew

问题描述

我有两个双精度ArrayList(ArrayList)，如何将这些arrayLists传递给GraphView以绘制线性图? 对于有限的点，我们可以使用以下代码:

I have two double ArrayList (ArrayList) how can I pass these arrayLists to GraphView to draw my linear chart? for limited points we can use these codes :

GraphView graph = (GraphView) findViewById(R.id.graph);
LineGraphSeries<DataPoint> series = new LineGraphSeries<DataPoint>(new   DataPoint[] {
      new DataPoint(0, 1),
      new DataPoint(1, 5),
      new DataPoint(2, 3),
      new DataPoint(3, 2),
      new DataPoint(4, 6)
});

但是我的ArrayList有数千个点！

but my ArrayLists have thousands points!

推荐答案

如果要用1000点填充LineGraphSeries，则应考虑定义一个列表，并在构造该对象的对象时将其传递给它. LineGraphSeries类

If you want to populate the LineGraphSeries with 1000 point then you should consider to define a list and pass this when you construct the object of the LineGraphSeries class

List<DataPoint> myPointList = ....
LineGraphSeries<DataPoint> series = new LineGraphSeries<DataPoint>(Arrays.asList(myPointList));
....

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