java.lang.RuntimeException:
at android.app.ActivityThread.performDestroyActivity (ActivityThread.java:4741)
at android.app.ActivityThread.handleDestroyActivity (ActivityThread.java:4764)
at android.app.servertransaction.DestroyActivityItem.execute (DestroyActivityItem.java:39)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState (TransactionExecutor.java:145)
at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:70)
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1970)
at android.os.Handler.dispatchMessage (Handler.java:106)
at android.os.Looper.loop (Looper.java:214)
at android.app.ActivityThread.main (ActivityThread.java:7156)
at java.lang.reflect.Method.invoke (Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:975)
Caused by: java.lang.NullPointerException:
at com.ekreutz.barcodescanner.camera.CameraSource$FrameProcessingRunnable.release (CameraSource.java:1163)
at com.ekreutz.barcodescanner.camera.CameraSource.release (CameraSource.java:338)
at com.ekreutz.barcodescanner.camera.CameraSourcePreview.release (CameraSourcePreview.java:81)
at com.ekreutz.barcodescanner.ui.BarcodeScannerView.release (BarcodeScannerView.java:198)
at com.ekreutz.barcodescanner.BarcodeScannerModule.release (BarcodeScannerModule.java:164)
at com.ekreutz.barcodescanner.BarcodeScannerModule.onHostDestroy (BarcodeScannerModule.java:122)
at com.facebook.react.bridge.ReactContext.onHostDestroy (ReactContext.java:237)