Question

我正在使用xamarin在visual studio 2015中使用android。我想添加一个图表，所以为了基本的理解，我跟着struct并下载了文档（示例代码）。现在我只是通过编写代码来复制源代码。当我到达oxyplot点时，我无法在其中找到FindViewById<PlotView>(Resource.Id)字段。为了更好地理解，请参阅下面的图像和代码

Bellow是我正在复制的代码

Id

贝娄是我正在写的

using Android.App;
using Android.OS;

using OxyPlot.Xamarin.Android;
using OxyPlot;
using OxyPlot.Axes;
using OxyPlot.Series;

namespace AndroidApp1
{
  [Activity(Label = "AndroidApp1", MainLauncher = true, Icon = "@drawable/icon")]

public class MainActivity : Activity
{
    protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);

        // Set our view from the "main" layout resource
        SetContentView(Resource.Layout.Main);

        PlotView view = FindViewById<PlotView>(Resource.Id.plot_view);
        view.Model = CreatePlotModel();
    }

    private PlotModel CreatePlotModel()
    {
        var plotModel = new PlotModel { Title = "OxyPlot Demo" };

        plotModel.Axes.Add(new LinearAxis { Position = AxisPosition.Bottom });
        plotModel.Axes.Add(new LinearAxis { Position = AxisPosition.Left, Maximum = 10, Minimum = 0 });

        var series1 = new LineSeries
        {
            MarkerType = MarkerType.Circle,
            MarkerSize = 4,
            MarkerStroke = OxyColors.White
        };

        series1.Points.Add(new DataPoint(0.0, 6.0));
        series1.Points.Add(new DataPoint(1.4, 2.1));
        series1.Points.Add(new DataPoint(2.0, 4.2));
        series1.Points.Add(new DataPoint(3.3, 2.3));
        series1.Points.Add(new DataPoint(4.7, 7.4));
        series1.Points.Add(new DataPoint(6.0, 6.2));
        series1.Points.Add(new DataPoint(8.9, 8.9));

        plotModel.Series.Add(series1);

        return plotModel;
    }
}}

我不知道我错过了什么。任何帮助将不胜感激

Answer 1

您尝试访问的ID必须在Xml文件中定义像这样的东西

`机器人：ID =＆＃34; @ + ID /内容和＃34;

这样你就可以指出具有ID的资源，或者它必须在另一个文件中进行细化，例如values-＆gt; id.xml

Xamarin android无法找到id字段

1 个答案: