hasOnDeviceSupport method

Future<bool> hasOnDeviceSupport({ String? localeId, })

Returns true if the device can recognize speech without a network connection, for localeId where the platform makes that distinction.

Use this before passing onDevice: true to listen. On iOS an on-device request that the device cannot satisfy fails the listen session; on Android it silently falls back to the network recognizer. Checking first lets a caller get the same "prefer on-device, fall back" behaviour on both.

localeId is the BCP-47 tag the session will use, or null for the system locale. iOS support is per-locale, so a device that supports on-device recognition for one language may not for another; Android reports a single device-wide answer and ignores this argument.

Returns false where the platform is too old to support on-device recognition at all (iOS below 13, Android below API 31), and false rather than throwing on platforms with no implementation.

Implementation

Future<bool> hasOnDeviceSupport({String? localeId}) {
  throw UnimplementedError('hasOnDeviceSupport() has not been implemented.');
}