如何在xamarin表单中使用wikitude插件？

Question

我正在使用Xamarin开发跨平台的AR应用程序。我正在使用Wikitude即时跟踪。

我能够启动Wikitude活动，并能够运行即时tracking...Now --我希望在跟踪时捕获高分辨率图像.我正在尝试构建插件以获取帧，然后将其转换为图像流

她是我的维基活动

 namespace XamarinExample.Droid
    {
        [Activity(Label = "WikitudeActivity")]
        public class WikitudeActivity : Activity, ArchitectView.IArchitectUrlListener
        {
            ArchitectView architectView;
            string worldUrl;

            protected override void OnCreate(Bundle bundle)
            {
                base.OnCreate(bundle);

                SetContentView(Resource.Layout.sample_cam);

                Title = Intent.GetStringExtra("id");

                worldUrl = "Wikitude" + File.Separator + Intent.GetStringExtra("id") + File.Separator + "index.html";

                architectView = FindViewById<ArchitectView>(Resource.Id.architectView);

                ArchitectStartupConfiguration startupConfiguration = new ArchitectStartupConfiguration();
                startupConfiguration.setLicenseKey(Constants.WIKITUDE_SDK_KEY);
                startupConfiguration.setFeatures(ArchitectStartupConfiguration.Features.ImageTracking);
                startupConfiguration.setCameraResolution(CameraSettings.CameraResolution.Auto);



/////////////////////////////// Register  Plugin////////////////////////////////////


                var plugins = new Plugin01("test");
                architectView.RegisterPlugin(plugins);

                architectView.OnCreate(startupConfiguration);
                architectView.RegisterUrlListener(this);
            }

    }

My Plugin code taken from

public class Plugin01 : Com.Wikitude.Common.Plugins.Plugin
 {
    public Plugin01(string p0) : base(p0)
    {

    }    
    Frame currentFrame = null;
    public override void CameraFrameAvailable(Frame p0)
    {
    System.Diagnostics.Debug.WriteLine("AVAILABLE FRAME");
        try
        {
            var data = p0.GetData();
            currentFrame = p0;
        }
        catch (System.Exception ex) { }
    }

    public override void Update(RecognizedTarget[] p0)
    {
            System.Diagnostics.Debug.WriteLine("AVAILABLE FRAME");
        if (p0 != null)
        {
            if (currentFrame != null)
            {
               // ConvertYuvToJpeg(currentFrame, p0[0]);
            }
        }
    }

}

我已经注册了插件，但它没有调用

公共覆盖无效更新(RecognizedTarget[] p0) Method....What在这里做错了吗？

Answer 1

我认为问题是在错误的方法中调用"RegisterPlugin“，因为您知道调用活动方法的循环是different.you应该在"OnPostCreate”活动方法中调用它。尝试下面的代码并让我知道结果：

protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);
        try
        {
            SetContentView(Resource.Layout.Main);
            architectView = FindViewById<ArchitectView>(Resource.Id.architectView);
            var config = new ArchitectStartupConfiguration();
            config.setLicenseKey(WIKITUDE_SDK_KEY);
            architectView.OnCreate(config);
        }
        catch (Exception ex) { Toast.MakeText(this, ex.ToString(), ToastLength.Long); }
    }

protected override void OnPostCreate(Bundle savedInstanceState)
    {
        base.OnPostCreate(savedInstanceState);
        if (architectView != null)
            architectView.OnPostCreate();
        try
        {
            try
            {
                string url = string.Format(@"file:///android_asset/01_ImageRecognition_1_ImageOnTarget/index.html");
                architectView.Load(url);
                Plugin01 cardPlugin = new Plugin01("com.plugin.dpiar");
                architectView.RegisterPlugin(cardPlugin);
            }
            catch (Exception ex) { }
        }
        catch (Exception ex) { Toast.MakeText(this, ex.ToString(), ToastLength.Long); }
    }

考虑更改变量名。