Why Does The List Of Unavailable Voices Is Always Empty?

Android enables an application to query the platform for the availability of language files: simply instantiate the intent below and send it in an asynchronous request by using sta

Solution 1:

For the unavailable voices, I use the following:

ArrayList<String> unavailable = data
            .getStringArrayListExtra("unavailableVoices");

The results are always in the format 'eng-GBR' or just 'eng'.

If I've misunderstood you're question and you're wondering why you don't get an 'unavailable' output specifically for your search of 'eng-USA-female' (rather than at all), then I can only suggest the format isn't suitable to be past to the search. I would suggest searching 'zzz-ZZZ' to see where the actual problem lies...

Hope that helps.