None of these solutions worked for me as I had two lines of text and each line has a different style, my solution was to use a RichText to correctly align the text to the left, and use different styles for each line. If I didn't use the RichText and just put two Text widgets inside a Column, no matter what I did the text still aligned centre, just on the left side of the AppBar.
appBar: AppBar(
centerTitle: false,
titleSpacing: 16.0,
title: RichText(
text: TextSpan(
text: "Good morning,\n",
style: textTheme.bodySmall,
children: [
TextSpan(
text: "Alexandra",
style: textTheme.headlineSmall,
),
],
),
),
),
SliverAppBar -> FlexibleSpaceBar
also setcenterTitle: false
inFlexibleSpaceBar
too. – Howardhowarth