How to make a Row take the full width of it's parent in Flutter?

Question

I want to create this peace of UI

The problem is in the Red Row that contains the Title and the Date. I want this Row to take the full width of it' parent widget so I can add a space between these two Text widgets...and that is what I'v done so far.

Container(
      color: Colors.yellow,
      margin: const EdgeInsets.symmetric(vertical: 6),
      child: Container(
        color: Colors.green,
        child: Row(
          children: [
            Container(
              decoration: BoxDecoration(
                border: Border.all(width: 1, color: AppColors.tertiary),
                borderRadius: BorderRadius.circular(240),
              ),
              child: Image.asset(image, width: 48, height: 48),
            ),
            const SizedBox(width: 6),
            Container(
              color: Colors.blue,
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Container(
                    color: Colors.red,
                    child: Row(
                      mainAxisSize: MainAxisSize.max,
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      children: [
                        Text(
                          title,
                          style: Theme.of(context).textTheme.subtitle1?.copyWith(color: Theme.of(context).colorScheme.primary),
                        ),
                        Text(
                          date,
                          style: Theme.of(context).textTheme.bodyText2?.copyWith(color: AppColors.tertiary),
                        ),
                      ],
                    ),
                  ),
                  const SizedBox(height: 3),
                  Text(
                    value.toString(),
                    style: Theme.of(context).textTheme.bodyText2?.copyWith(color: AppColors.tertiary),
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );

I tried to wrap this Row with a Extended widget and and a SizedBox.expand() but it did not work.

Answer 1

You need wrap your Container that contain Column with Expanded widget:

Row(
    children: [
      Container(
        decoration: BoxDecoration(
          border: Border.all(width: 1, color: Colors.black),
          borderRadius: BorderRadius.circular(240),
        ),
        child: Image.asset(image, width: 48, height: 48),
      ),
      const SizedBox(width: 6),
      Expanded( //<---- add this
        child: Container(
          color: Colors.blue,
          child: Column(