Flutter Align TextFormField with DropdownButton - flutter

Question

I have the following code that renders a ListTile with a TextFormField and a ListTitle with a DropdownButton.
Row(
mainAxisSize: MainAxisSize.max,
mainAxisAlignment: MainAxisAlignment.spaceBetween,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
new Expanded(
child: ListTile(
dense: true,
title: Text(
"Property Name",
style: TextStyle(fontWeight: FontWeight.bold),
),
subtitle: TextFormField(
decoration: InputDecoration(
labelText: 'Enter the property name'
),
),
isThreeLine: true,
)
),
new Expanded(
child: ListTile(
dense: true,
title: Text(
"Contact Name",
style: TextStyle(fontWeight: FontWeight.bold),
),
subtitle: DropdownButton<int>(
items: [
DropdownMenuItem<int>(
value: 1,
child: Text(
"John Smith",
),
),
DropdownMenuItem<int>(
value: 2,
child: Text(
"Jon Doe",
),
),
],
onChanged: (value) {
setState(() {
_value = value;
});
},
value: _value,
hint: Text(
"Select Contact Name",
style: TextStyle(
color: Colors.black,
),
),
),
isThreeLine: true,
)
),
],
),
but it produces the following:
Is there a way to align the Contact Name's DropdownButton bottom line to the Property Name's ListTile? Any ideas?

Answer 1

1. Use DropdownButtonFormField
As for me, I rather choose to replace Dropdown widget with DropdownButtonFormField
change this
child: ListTile(
dense: true,
title: Text(
"Contact Name",
style: TextStyle(fontWeight: FontWeight.bold),
),
subtitle: DropdownButton<int>( // change this
items: [
...
into this
child: ListTile(
dense: true,
title: Text(
"Contact Name",
style: TextStyle(
fontWeight: FontWeight.bold,
),
),
subtitle: DropdownButtonFormField<int>( // into this
decoration: InputDecoration(
isDense: true,
hasFloatingPlaceholder: true,
labelText: 'Select Contact Name',
contentPadding: EdgeInsets.symmetric(vertical: 9),
),
items: [
...
2. Remove hint params
secondly, as we move 'Select Contact name' to label Text inside InputDecoration, we can remove these lines :
hint: Text(
"Select Contact Name",
style: TextStyle(
color: Colors.black,
),
),
3. Comparison
We can discover three options that we already have in image below.
at the first row, it is solution proposed by KeykoYume
at the second row, it is solution proposed by Abhilash Chandran
at the last row, it is new solution proposed by me
Take note, that the third row also automatically handle overflows nicely

Answer 2

Padding your dropdown button with top inset could help as shown below.
subtitle: Padding(
padding: const EdgeInsets.only(top: 19.0),
child: DropdownButton<int>(
items: [
DropdownMenuItem<int>(
value: 1,
child: Text(
"John Smith",
),
),
DropdownMenuItem<int>(
value: 2,
child: Text(
"Jon Doe",
),
),
],
onChanged: (value) {
// setState(() {
// _value = value;
// });
},
value: 1,
hint: Text(
"Select Contact Name",
style: TextStyle(
color: Colors.black,
),
),
),
),