Flutter different alignment in Column - flutter

Question

I have a column with three rows:
#override
Widget build(BuildContext context) {
return GestureDetector(
onTap: () {
print('card of course clicked');
},
child: Card(
shape: RoundedRectangleBorder(borderRadius:
BorderRadius.circular(8.0)),
child: Container(
height: 144,
child: Row(children: [
Padding(
padding: EdgeInsets.all(16.0),
child: ClipRRect(
borderRadius: BorderRadius.all(Radius.circular(8.0)),
child: Image.network(_model._schoolThumb))),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
SizedBox(height: 16),
Align(
alignment: Alignment.center,
child: Text(_model._schoolName,
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.w600,
fontSize: 18)),
),
SizedBox(height: 12),
Row(
children: <Widget>[
Icon(Icons.location_on, color: Colors.grey[700]),
Container(width: 8),
Text(_model._guides,
style: TextStyle(
fontSize: 14,
color: Colors.black,
fontWeight: FontWeight.w400)),
],
),
SizedBox(height: 12),
Row(
children: <Widget>[
Icon(Icons.attach_money, color: Colors.grey[700]),
Container(width: 8),
Text(_model._priceFrom,
style: TextStyle(
fontSize: 14,
color: Colors.black,
fontWeight: FontWeight.w400))
],
)
],
)
]),
),
),
);
}
As a result, I have three rows aligned to start.
How can I align the first Text() in the center? Giving properties to the text and wrapping in Expanded, Container, Stack didn't help, or I did it in the wrong way. Thanks in advance!
EDIT
Whole build() method attached

Answer 1

Problem:
By default, the width of the Column is set to the width of the widest child widget of Column.
Solution:
You need to wrap your Column with either Expanded or Flexible.
Like below.
Expanded(
child: Column(
children: <Widget>[
...
],
),
)
or
Flexible(
child: Column(
children: <Widget>[
...
],
),
)
And then need to use the Align or Center widget to set the alignment to your child widget in your case the Text widget.
Like below:
Align(
alignment: Alignment.center,
child: Text(
"Test",
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.w600,
fontSize: 18,
),
),
),
or
Center(
child: Text(
"Test",
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.w600,
fontSize: 18,
),
),
),

Answer 2

UPDATE
You haven't given a width to the column so it does not know the remaining width that it can take. So wrap your column in a flexible which will give it the width remaining to expand.
Flexible(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
SizedBox(height: 16),
Row(