Creates a speech recognizer associated with the user's default language settings.
- iOS 10.0+
An initialized speech recognizer object, or
nil if there was a problem creating the object.
If the user's default language is not supported for speech recognition, this method attempts to fall back to the language used by the keyboard for dictation. If that fails, this method returns
Even if this method returns a valid speech recognizer object, the speech recognition services may be temporarily unavailable. To determine whether speech recognition services are available, check the