Initializing both cameras produces java error

[EJLib]

I am having trouble opening 2 hardware cameras at the same time. I have tried both the CameraEx and Camera libraries. It seems that initializing the second camera breaks the initialization of the first camera. It produces a "java.lang.RunTimeException: Method called after release()" error. Each camera works fine if I comment out the other initialization.

Is there a work around so I can preview both cameras at the same time?

Thanks,
EJ

Sub Globals
   Dim Panel1 As Panel
   Dim Panel2 As Panel
   Dim frontCam As Camera
   Dim backCam As Camera
End Sub
Sub Activity_Create(FirstTime As Boolean)
   Activity.LoadLayout("lg")
   Dim numberOfCameras As Int = r.RunStaticMethod("android.hardware.Camera", "getNumberOfCameras", Null, Null)
   ToastMessageShow("# of cameras" & numberOfCameras,True)
End Sub
Private Sub InitializeCameras
   frontCam.Initialize2(Panel1,"frontCamera",1)'' the first camera initialized produces an error when starting its preview
   backCam.Initialize2(Panel2,"backCamera",0) '' the second camera initialized runs fine.
End Sub
Sub backCamera_Ready (Success As Boolean)
   If Success Then
      backCam.StartPreview
   Else
      Msgbox("cannot open back camera","")
   End If
End Sub
Sub frontCamera_Ready (Success As Boolean)
   If Success Then
      frontCam.StartPreview'' This raises an error "java.lang.RunTimeException: Method called after release()"
   Else
      Msgbox("cannot open front camera","")
   End If
End Sub

Sub Activity_Resume
   InitializeCameras
End Sub

Sub Activity_Pause (UserClosed As Boolean)
   frontCam.StopPreview
   backCam.StopPreview
   frontCam.Release
   backCam.Release
End Sub

 

[Erel]

All (or at least most) current devices do not support two cameras at once.

 

[Juan Marrero]

The camera app of the htc one m8 open front and rear cameras at the same time. I used this code and gave me the same error. Apparently that's an mystery manufacturers don't want us to know.