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androidbroadcastreceiverspeech-recognition

Query supported languages for SpeechRecognizer using BroadcastReceiver intent


I'm having trouble querying for supported languages using the SpeechRecognizer.ACTION_GET_SUPPORTED_LANGUAGES.

private void queryLanguages() {
    Intent i = new Intent(RecognizerIntent.ACTION_GET_LANGUAGE_DETAILS);
    sendOrderedBroadcast(i, null);
}

Now, I know it says the BroadcastReceiver is specified in RecognizerIntent.DETAILS_META_DATA, but I'm not sure as to how I can access that.

So basically what I'm asking is how do I create an Intent to retrieve the available languages data?


Solution

  • This is how it is done:

        Intent intent = new Intent(RecognizerIntent.ACTION_GET_LANGUAGE_DETAILS);
        context.sendOrderedBroadcast(intent, null, new HintReceiver(),
                        null, Activity.RESULT_OK, null, null);
    

        private static class HintReceiver extends BroadcastReceiver {
                @Override
                public void onReceive(Context context, Intent intent) {
                    if (DBG)
                        Log.d(TAG, "onReceive(" + intent.toUri(0) + ")");
                    if (getResultCode() != Activity.RESULT_OK) {
                        return;
                    }
                    // the list of supported languages. 
                    ArrayList<CharSequence> hints = getResultExtras(true)
                            .getCharSequenceArrayList(
                                    RecognizerIntent.EXTRA_SUPPORTED_LANGUAGES);
    
            }
        }
    

    Note :

    Whether these are actually provided is up to the particular implementation