Java DroidAR标记演示不起作用

我遵循了本网站中的步骤：

 E/AndroidRuntime(1433): java.lang.ExceptionInInitializerError  
 E/AndroidRuntime(1433):    at markerDetection.MarkerDetectionSetup.<init>(MarkerDetectionSetup.java:53)  
 E/AndroidRuntime(1433):    at de.rwth.MultiMarkerSetup.<init>(MultiMarkerSetup.java:28)  
 E/AndroidRuntime(1433):    at de.rwth.Main.onCreate(Main.java:16)  
 E/AndroidRuntime(1433):    at android.app.Activity.performCreate(Activity.java:5283)  
 E/AndroidRuntime(1433):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295) 

但是，当我尝试运行它时，出现以下错误：

 E/AndroidRuntime(1433): java.lang.ExceptionInInitializerError  
 E/AndroidRuntime(1433):    at markerDetection.MarkerDetectionSetup.<init>(MarkerDetectionSetup.java:53)  
 E/AndroidRuntime(1433):    at de.rwth.MultiMarkerSetup.<init>(MultiMarkerSetup.java:28)  
 E/AndroidRuntime(1433):    at de.rwth.Main.onCreate(Main.java:16)  
 E/AndroidRuntime(1433):    at android.app.Activity.performCreate(Activity.java:5283)  
 E/AndroidRuntime(1433):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295) 

E/AndroidRuntime（1433）：java.lang.ExceptionInInitializeError
E/AndroidRuntime（1433）：位于markerDetection.MarkerDetectionSetup。（MarkerDetectionSetup.java:53）
E/AndroidRuntime（1433）：在de.rwth.MultiMarkerSetup.（MultiMarkerSetup.java:28）
E/AndroidRuntime（1433）：位于de.rwth.Main.onCreate（Main.java:16）
E/AndroidRuntime（1433）：位于android.app.Activity.performCreate（Activity.java:5283）
E/AndroidRuntime（1433）：位于android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1097）
E/AndroidRuntime（1433）：位于android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2209）
E/AndroidRuntime（1433）：位于android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:2295）

---

谢谢

您已经为droidar安装了opencv库

 E/AndroidRuntime(1433): java.lang.ExceptionInInitializerError  
 E/AndroidRuntime(1433):    at markerDetection.MarkerDetectionSetup.<init>(MarkerDetectionSetup.java:53)  
 E/AndroidRuntime(1433):    at de.rwth.MultiMarkerSetup.<init>(MultiMarkerSetup.java:28)  
 E/AndroidRuntime(1433):    at de.rwth.Main.onCreate(Main.java:16)  
 E/AndroidRuntime(1433):    at android.app.Activity.performCreate(Activity.java:5283)  
 E/AndroidRuntime(1433):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295) 

您只需从google play store下载opencv manager并为您的开发设备安装建议软件包。

可能会帮助您开始

 E/AndroidRuntime(1433): java.lang.ExceptionInInitializerError  
 E/AndroidRuntime(1433):    at markerDetection.MarkerDetectionSetup.<init>(MarkerDetectionSetup.java:53)  
 E/AndroidRuntime(1433):    at de.rwth.MultiMarkerSetup.<init>(MultiMarkerSetup.java:28)  
 E/AndroidRuntime(1433):    at de.rwth.Main.onCreate(Main.java:16)  
 E/AndroidRuntime(1433):    at android.app.Activity.performCreate(Activity.java:5283)  
 E/AndroidRuntime(1433):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295) 

DroidAR有Eclipse的示例，但找不到Android studio的示例。如果您想在Android studio中使用它，请在项目中添加DroidAR库作为一个模块，并确保在gradle中添加了它

 E/AndroidRuntime(1433): java.lang.ExceptionInInitializerError  
 E/AndroidRuntime(1433):    at markerDetection.MarkerDetectionSetup.<init>(MarkerDetectionSetup.java:53)  
 E/AndroidRuntime(1433):    at de.rwth.MultiMarkerSetup.<init>(MultiMarkerSetup.java:28)  
 E/AndroidRuntime(1433):    at de.rwth.Main.onCreate(Main.java:16)  
 E/AndroidRuntime(1433):    at android.app.Activity.performCreate(Activity.java:5283)  
 E/AndroidRuntime(1433):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295) 

依赖项{
编译项目（“：droidAR”）
}

 E/AndroidRuntime(1433): java.lang.ExceptionInInitializerError  
 E/AndroidRuntime(1433):    at markerDetection.MarkerDetectionSetup.<init>(MarkerDetectionSetup.java:53)  
 E/AndroidRuntime(1433):    at de.rwth.MultiMarkerSetup.<init>(MultiMarkerSetup.java:28)  
 E/AndroidRuntime(1433):    at de.rwth.Main.onCreate(Main.java:16)  
 E/AndroidRuntime(1433):    at android.app.Activity.performCreate(Activity.java:5283)  
 E/AndroidRuntime(1433):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295) 

启动TechDemoLauncher将为您提供DroidAR中的所有可用选项

 E/AndroidRuntime(1433): java.lang.ExceptionInInitializerError  
 E/AndroidRuntime(1433):    at markerDetection.MarkerDetectionSetup.<init>(MarkerDetectionSetup.java:53)  
 E/AndroidRuntime(1433):    at de.rwth.MultiMarkerSetup.<init>(MultiMarkerSetup.java:28)  
 E/AndroidRuntime(1433):    at de.rwth.Main.onCreate(Main.java:16)  
 E/AndroidRuntime(1433):    at android.app.Activity.performCreate(Activity.java:5283)  
 E/AndroidRuntime(1433):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)  
 E/AndroidRuntime(1433):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295)