Android graphview不会自动更新

Question

我正在使用 GraphView 库，但在更新系列(或用新系列替换系列)时无法让图表自行重绘。当我触摸屏幕时，它似乎只会重新绘制自己。这是我的更新功能。

private void updateGraph(Animal a)
{
    Toast.makeText(getApplicationContext(), "Updating Graph", Toast.LENGTH_SHORT).show();
    GraphViewData[] newData = new GraphViewData[2];
    newData[0] = new GraphViewData(0,a.getAvg());
    newData[1] = new GraphViewData(1,0.2);

    GraphViewSeries newSeries = new GraphViewSeries(a.getName(),dStyle,newData);

    graph.removeSeries(exampleSeries);
    graph.addSeries(newSeries);
    //update horizontal value
    //graph.setHorizontalLabels(new String[]{a.getName()});
}

Answer 1

我想通了...

//test random y value
    double rnd = generator.nextDouble();

    // round is an incremental value (1,2,3...)
    GraphViewData newData = new GraphViewData(round,rnd);

    exampleSeries.appendData(newData, false);
    graph.redrawAll();