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I have a widget hierarchy where SingleChildScrollView is the parent with a Stack as the child, the Stack has two children, if the Second child goes beyond the screen height its height gets clipped. According to docs the stack occupies size according to a Non-Positioned child. So that means we have to explicitly give a height to the Stack, but this height is arbitrary and it won't wrap the contents inside. My main aim is to wrap the SingleChildScrollView height rather than having empty space at bottom.
SingleChildScrollView(
child: Container(
height: MediaQuery.of(context).size.height + 150,
child: SafeArea(
bottom: false,
child: Stack(
fit: StackFit.expand,
children: <Widget>[
Container(height:MediaQuery.of(context).size.height * .35,),
Positioned(top: top: MediaQuery.of(context).size.height * .35 +
MediaQuery.of(context).viewInsets.top,..)
...]))))
[![image][1]][1]
[1]: https://i.stack.imgur.com/ZnoP0.png
553
Are you trying to set minimum height or width of Container () widget in a Flutter, then use ’constraints’ attribute and apply BoxConstraints () on it like below. In this example, we are going to show you how to turn on Device GPS in Flutter App, or open the location setting for App in Flutter App.
If you need to make the scrollable pushes the upper area like the below screenshot, Flutter already has a widget called SliverAppBar that allows you to easily create such animation.
Flutter has a widget called DraggableScrollableSheet. It's described as a container for a Scrollable that responds to drag gestures by resizing the scrollable until a limit is reached, and then scrolling. In this tutorial, you'll see some examples of how to use the widget.
As we make every app as responsive, Flutter also supports responsive design with device screen’s or parent’s width and height. You can set the width and height of your widget depends to screen size.
Do let me know if this isn't what you were looking for.
void main() => runApp(MaterialApp(home: HomePage()));
class HomePage extends StatefulWidget {
@override
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: <Widget>[
Container(
padding: EdgeInsets.only(top: 44, left: 24, right: 24, bottom: 20),
color: Colors.deepPurpleAccent,
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Row(
children: <Widget>[
IconButton(
icon: Icon(Icons.arrow_back),
onPressed: () {},
color: Colors.white,
),
Spacer(),
IconButton(
icon: Icon(Icons.more_vert),
onPressed: () {},
color: Colors.white,
),
],
),
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Container(color: Colors.white, width: 100, height: 100),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 12.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
_myText("Your name", 16),
_myText("24 years old", 14),
SizedBox(height: 6),
_myText("Martial status", 16),
_myText("Unmarried", 14),
SizedBox(height: 6),
Container(padding: EdgeInsets.all(4), color: Colors.blue, child: _myText("PLUS PLAN - 1 DAY LEFT", 12)),
SizedBox(height: 12),
],
),
),
],
),
SizedBox(
width: double.maxFinite,
child: OutlineButton(
borderSide: BorderSide(color: Colors.white, width: 2),
onPressed: () {},
child: _myText("CHANGE PLAN", 16),
),
),
Text(
"Higher plans give you more connects",
style: TextStyle(fontSize: 10, color: Colors.white70),
),
],
),
),
Expanded(
child: ListView(
children: <Widget>[
_buildCard1(),
_buildCard(size: 70, color: Colors.deepOrange),
_buildCard(size: 80, color: Colors.purple),
_buildCard(size: 90, color: Colors.pink),
_buildCard(size: 100, color: Colors.grey),
],
),
),
],
),
);
}
Widget _myText(String data, double size) => Text(data, style: TextStyle(fontSize: size, color: Colors.white));
Widget _buildCard1() {
return Card(
elevation: 4,
margin: EdgeInsets.all(12),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Padding(
padding: const EdgeInsets.all(8.0),
child: Text("PROFILE DETAILS"),
),
Placeholder(fallbackHeight: 200),
Divider(),
SizedBox(
width: double.maxFinite,
child: FlatButton(
onPressed: () {},
child: Text("UPDATE MY PROFILE"),
),
),
],
),
);
}
Widget _buildCard({double size, Color color}) {
return Card(
margin: EdgeInsets.all(12),
child: Container(height: size, color: color,),
);
}
}
Is this what you were looking for? (Here I only modified above build() method, rest of the method remains same.
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.deepPurpleAccent,
body: SafeArea(
child: ListView(
children: <Widget>[
Container(
padding: EdgeInsets.only(top: 12, left: 24, right: 24, bottom: 20),
color: Colors.deepPurpleAccent,
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Row(
children: <Widget>[
IconButton(
icon: Icon(Icons.arrow_back),
onPressed: () {},
color: Colors.white,
),
Spacer(),
IconButton(
icon: Icon(Icons.more_vert),
onPressed: () {},
color: Colors.white,
),
],
),
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Container(color: Colors.white, width: 100, height: 100),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 12.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
_myText("Your name", 16),
_myText("24 years old", 14),
SizedBox(height: 6),
_myText("Martial status", 16),
_myText("Unmarried", 14),
SizedBox(height: 6),
Container(padding: EdgeInsets.all(4), color: Colors.blue, child: _myText("PLUS PLAN - 1 DAY LEFT", 12)),
SizedBox(height: 12),
],
),
),
],
),
SizedBox(
width: double.maxFinite,
child: OutlineButton(
borderSide: BorderSide(color: Colors.white, width: 2),
onPressed: () {},
child: _myText("CHANGE PLAN", 16),
),
),
Text(
"Higher plans give you more connects",
style: TextStyle(fontSize: 10, color: Colors.white70),
),
],
),
),
Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.horizontal(left: Radius.circular(30), right: Radius.circular(30))
),
child: Column(
children: <Widget>[
_buildCard1(),
_buildCard(size: 70, color: Colors.deepOrange),
_buildCard(size: 80, color: Colors.purple),
_buildCard(size: 90, color: Colors.pink),
_buildCard(size: 100, color: Colors.grey),
],
),
),
],
),
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: SafeArea(
child: DecoratedBox(
decoration: BoxDecoration(image: DecorationImage(image: AssetImage("your_image_here"), fit: BoxFit.cover)),
child: CustomScrollView(
slivers: <Widget>[
SliverAppBar(
expandedHeight: 300,
flexibleSpace: FlexibleSpaceBar(
collapseMode: CollapseMode.pin,
background: Container(
decoration: BoxDecoration(image: DecorationImage(image: AssetImage("your_image_here"), fit: BoxFit.cover)),
padding: EdgeInsets.only(top: 12, left: 24, right: 24, bottom: 20),
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Row(
children: <Widget>[
IconButton(
icon: Icon(Icons.arrow_back),
onPressed: () {},
color: Colors.white,
),
Spacer(),
IconButton(
icon: Icon(Icons.more_vert),
onPressed: () {},
color: Colors.white,
),
],
),
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Container(color: Colors.white, width: 100, height: 100),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 12.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
_myText("Your name", 16),
_myText("24 years old", 14),
SizedBox(height: 6),
_myText("Martial status", 16),
_myText("Unmarried", 14),
SizedBox(height: 6),
Container(padding: EdgeInsets.all(4), color: Colors.blue, child: _myText("PLUS PLAN - 1 DAY LEFT", 12)),
SizedBox(height: 12),
],
),
),
],
),
SizedBox(
width: double.maxFinite,
child: OutlineButton(
borderSide: BorderSide(color: Colors.white, width: 2),
onPressed: () {},
child: _myText("CHANGE PLAN", 16),
),
),
Text(
"Higher plans give you more connects",
style: TextStyle(fontSize: 10, color: Colors.white70),
),
],
),
),
),
),
SliverList(
delegate: SliverChildListDelegate(
[
Container(
decoration: BoxDecoration(
color: Colors.orange,
borderRadius: BorderRadius.horizontal(
left: Radius.circular(30),
right: Radius.circular(30),
)),
child: Column(
children: <Widget>[
_buildCard1(),
_buildCard(size: 100, color: Colors.deepOrange),
_buildCard(size: 80, color: Colors.purple),
_buildCard(size: 100, color: Colors.pink),
_buildCard(size: 180, color: Colors.grey),
],
),
),
],
),
),
],
),
),
),
);
}
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