我正在使用 Xamarin 开发跨平台 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跟踪...现在我想在跟踪时捕获高分辨率图像...我正在尝试构建插件来获取帧,然后将其转换为图像流
她是我的维基百科活动
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);
}
}
我的插件代码取自 http://stackoverflow.com/questions/43843912/wikitude-plugin-in-xamarin-captured-image?noredirect=1#comment80270100_43843912
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
public override void Update(RecognizedTarget[] p0) 方法....我在这里做错了什么?
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周期是不同的。您应该在活动的“OnPostCreate”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); }
}
考虑更改变量名称。
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