react-native-touch-id Fatal Exception: java.lang.NullPointerException

Here attached the log, it looks like the same problem --- in FingerprintDialog.java file, line 169 and line 184, we must make sure this.dialogCallback had set before call its onCancelld and onAuthenticated function.

Fatal Exception: java.lang.NullPointerException: Attempt to invoke interface method 'void com.rnfingerprint.FingerprintDialog$DialogResultListener.onAuthenticated()' on a null object reference at com.rnfingerprint.FingerprintDialog.onAuthenticated(FingerprintDialog.java:169) at com.rnfingerprint.FingerprintHandler.onAuthenticationSucceeded(FingerprintHandler.java:48) at android.hardware.fingerprint.FingerprintManager$MyHandler.sendAuthenticatedSucceeded(FingerprintManager.java:958) at android.hardware.fingerprint.FingerprintManager$MyHandler.handleMessage(FingerprintManager.java:878) at android.os.Handler.dispatchMessage(Handler.java:108) at android.os.Looper.loop(Looper.java:166) at android.app.ActivityThread.main(ActivityThread.java:7425) at java.lang.reflect.Method.invoke(Method.java) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:245) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:921)

Fatal Exception: java.lang.NullPointerException: Attempt to invoke interface method 'void com.rnfingerprint.FingerprintDialog$DialogResultListener.onCancelled()' on a null object reference at com.rnfingerprint.FingerprintDialog.onCancelled(FingerprintDialog.java:184) at com.rnfingerprint.FingerprintDialog$2.onKey(FingerprintDialog.java:86) at android.app.Dialog.dispatchKeyEvent(Dialog.java:808) at com.android.internal.policy.DecorView.dispatchKeyEvent(DecorView.java:352) at android.view.ViewRootImpl$ViewPostImeInputStage.processKeyEvent(ViewRootImpl.java:5191) at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:5059) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4578) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4631) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4597) at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4737) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4605) at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4794) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4578) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4631) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4597) at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4605) at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4578) at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4631) at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4597) at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4770) at android.view.ViewRootImpl$ImeInputStage.onFinishedInputEvent(ViewRootImpl.java:4933) at android.view.inputmethod.InputMethodManager$PendingEvent.run(InputMethodManager.java:2580) at android.view.inputmethod.InputMethodManager.invokeFinishedInputEventCallback(InputMethodManager.java:2090) at android.view.inputmethod.InputMethodManager.finishedInputEvent(InputMethodManager.java:2081) at android.view.inputmethod.InputMethodManager$ImeInputEventSender.onInputEventFinished(InputMethodManager.java:2557) at android.view.InputEventSender.dispatchInputEventFinished(InputEventSender.java:141) at android.os.MessageQueue.nativePollOnce(MessageQueue.java) at android.os.MessageQueue.next(MessageQueue.java:326) at android.os.Looper.loop(Looper.java:165) at android.app.ActivityThread.main(ActivityThread.java:6806) at java.lang.reflect.Method.invoke(Method.java) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)