adding textDirection property to ThemeData class

[hewa-jalal]

shouldn't textDirection be added to ThemeData so we can just change it once and not in every single Text widget, i know about the Directionality widget but it doesn't work like textDirection property inside the Text widget.

[darshankawar]

Hi @hiwa-jalal,
If you want to set text direction for entire app, you may define that inside MaterialApp as below:

void main() {
  runApp(
    MaterialApp(
      home: Directionality(
        textDirection: TextDirection.rtl // or ltr,
        child: Demo(),
      ),
    ),
  );
}

Does this answer your question or did I misread your question ?
Thanks.

[hewa-jalal]

thank you, but as i mentioned i already used it but it doesn't work, i mean it changes nothing.
my widget tree in main.dart file look like this, sorry for the messy structure but that's because i use a lot of packages.

Directionality(
              textDirection: TextDirection.rtl,
              child: NeumorphicApp(
                debugShowCheckedModeBanner: false,
                home: get_package.GetMaterialApp(
                  theme: state.themeData,
                  debugShowCheckedModeBanner: false,
                  home: locationPrefs != null
                      ? Builder(
                          builder: (context) {
                            ScreenUtil.init(context);
                            return HomePage(
                              showDialog: false,
                              userLocation: locationPrefs,
                            );
                          },
                        )
                      : Builder(
                          builder: (context) {
                            SizeConfig().init(context);
                            ScreenUtil.init(context);
                            return I18n(
                              child: LanguageSelectionPage(),
                            );
                          },
                        ),
                ),
              ),
            );

[darshankawar]

Hi @hiwa-jalal,
Can you please elaborate when you say it doesn't work, it changes nothing and what are you expecting by adding textDirection property` ?

[hewa-jalal]

as i have an option for the user to choose the Arabic language in my app which is a RTL language, so i want my Text to have that direction too when the user select the Arabic language, as for Directionality i expect it to give me the same result as textDirection property inside the Text widget, but it doesn't it as i will show you below:

this is the result of when using textDirection: TextDirection.rtl property inside the Text widget.

and this is the result of using the Directionality textDirection: TextDirection.rtl, as you can see they are not similar for case of using the Directionalitywidget, it's like it has no effect in it, and the text is still ltr even though i set to be rtl inside theDirectionality` widegt, that's why i said it doesn't work and it changes nothing.