GlobalWidgetsLocalizations constructor
Construct an object that defines the localized values for the widgets
library for the given locale.
LocalizationsDelegate implementations typically call the static load function, rather than constructing this class directly.
Implementation
GlobalWidgetsLocalizations(this.locale) {
final String language = locale.languageCode.toLowerCase();
_textDirection = _rtlLanguages.contains(language) ? TextDirection.rtl : TextDirection.ltr;
}