Registers a custom device-locale source that takes precedence over the built-in detection. Useful for hosts that persist an in-app language choice, and for tests to simulate device languages. Pass null to restore built-in detection.
null
Registers a custom device-locale source that takes precedence over the built-in detection. Useful for hosts that persist an in-app language choice, and for tests to simulate device languages. Pass
nullto restore built-in detection.