CODEWITHSUNDEEP
flutterdart
Paul
Paul

Reputation: 207

change color BorderSide when switching to dark theme

The code in the photo is responsible for building the widget. The red line is responsible for constructing the line that underlines the inscription "Location information"

enter image description here enter image description here

With a white theme, this line is black. Can you tell me how can I make it white when the application theme switches to dark?

   .....
    class MyThemes {
      static final darkTheme = ThemeData(
        scaffoldBackgroundColor: Colors.grey[800],
        colorScheme: ColorScheme.dark(),
        listTileTheme: ListTileThemeData(iconColor: Colors.white,),
        textTheme: TextTheme(
          subtitle2: TextStyle(
            color: Colors.white,
          ),
        ),
          );
  ......

Upvotes: 0

Views: 1010

Answers (2)

Burhanuddin Rashid
Burhanuddin Rashid

Reputation: 5370

By default Border draw black color if no color value is provided.

You can use color property in BorderSide constructor to change the border color.

In your case, you can use the color from theme like this..

              Container(
                decoration: BoxDecoration(
                  border: Border(
                    bottom: BorderSide(
                      width: 1.0,
                      color: Theme.of(context).textTheme.subtitle1.color
                    ),
                  ),
                ),
                child: Text('Location Information'),
              )

Upvotes: 0

Md. Yeasin Sheikh
Md. Yeasin Sheikh

Reputation: 63669

You can call color on BorderSide

decoration: BoxDecoration(
  border: Border(
    bottom: BorderSide(
      color: Theme.of(context).brightness == Brightness.dark
          ? Colors.white
          : Colors.black,
    ),
  ),
),

You can also check Text's decoration and instead using Theme.of(context).brightness you can use your theme data.

Upvotes: 1

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