I have merged two samples in a single application and defined camera overlay for switching between two activities , while going from ImageTargets to VideoPlayback it works fine whereas going from VideoPlayback to ImageTargets it throws a Fatal error saying:
08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: FATAL EXCEPTION: main 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: java.lang.IllegalStateException: Could not execute method of the activity 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.view.View$1.onClick(View.java:3617) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.view.View.performClick(View.java:4222) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.view.View$PerformClick.run(View.java:17620) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:800) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:100) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.os.Looper.loop(Looper.java:194) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5391) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:525) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: Caused by: java.lang.reflect.InvocationTargetException 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:525) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.view.View$1.onClick(View.java:3612) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.view.View.performClick(View.java:4222) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.view.View$PerformClick.run(View.java:17620) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:800) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:100) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.os.Looper.loop(Looper.java:194) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5391) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:525) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: Caused by: com.vuforia.samples.SampleApplication.SampleApplicationException: Failed to unload trackers' data 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at com.vuforia.samples.SampleApplication.SampleApplicationSession.stopAR(SampleApplicationSession.java:267) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at com.vuforia.samples.VuforiaSamples.app.VideoPlayback.VideoPlayback.onImageClick(VideoPlayback.java:552) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:525) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.view.View$1.onClick(View.java:3612) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.view.View.performClick(View.java:4222) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.view.View$PerformClick.run(View.java:17620) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:800) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:100) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.os.Looper.loop(Looper.java:194) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5391) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:525) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) 08-22 11:12:45.500 27201-27201/com.vuforia.samples.VuforiaSamples E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)
please help me with this if some one can.