java.lang.NullPointerException: Attempt to invoke virtual method 'java.util.Iterator java.util.ArrayList.iterator()' on a null object reference [ANDROID]

[mehdinourollah]

When I use it on Android the app crashes and I've got this error from logcat

    Process: com.******, PID: 18659
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.util.Iterator java.util.ArrayList.iterator()' on a null object reference
        at com.wenkesj.voice.VoiceModule.onResults(VoiceModule.java:348)
        at android.speech.SpeechRecognizer$InternalListener$1.handleMessage(SpeechRecognizer.java:459)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:223)
        at android.app.ActivityThread.main(ActivityThread.java:7664)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)```

[mehdinourollah]

It's happening the moment that the speech is finished ! So it shows the results but when it tries to end the speech it crashes with above logs

[mehdinourollah]

The VoiceModule.java the mentioned part is this part :

  public void onResults(Bundle results) {
    WritableArray arr = Arguments.createArray();

    ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
    for (String result : matches) {
      arr.pushString(result);
    }
    ...

[Thanhal-P-A]

In my case, this solution works : [@react-native-community/voice or react-native-voice / voice gives exception java.lang.NullPointerException at com.wenkesj.voice.VoiceModule.onResults](https://stackoverflow.com/questions/72213425/react-native-community-voice-or-react-native-voice-voice-gives-exception-java/72213426#72213426)

[mehdinourollah]

As far as I checked it's not a solution ...It just removed some parameters from Start function ( which I can't )

In my case, this solution works : [@react-native-community/voice or react-native-voice / voice gives exception java.lang.NullPointerException at com.wenkesj.voice.VoiceModule.onResults](https://stackoverflow.com/questions/72213425/react-native-community-voice-or-react-native-voice-voice-gives-exception-java/72213426#72213426)

[Nikit-Singh]

@mehdinourollah did you find any solution for this without removing the parameters?

[mehdinourollah]

No I couldn't Unfortunately

[Alaaeddine-chakroun]

I managed to fix the crash on android by removing EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS from the options in Voice.start

[goheroes]

I made simple fix and pull request. #435 I need your usage tests and feedback.