I am trying to use an expanded sliver app bar on one of my screens, but am getting an unexpected thin line on the screen. I tried to get rid of it by using a stack with a black container at the bottom, and that worked but the stretch features of the expanded app bar were not working well with the stack. Any better suggestions?
SliverAppBar(
collapsedHeight: 140,
expandedHeight: 250,
stretch: true,
//can use onStretchTrigger to implement refresh on stretch
backgroundColor: Colors.black38,
bottom: PreferredSize(
preferredSize: Size.fromHeight(0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Padding(
padding: const EdgeInsets.symmetric(horizontal: 25.0),
child: Text(
textAlign: TextAlign.center,
barName,
style: GoogleFonts.bebasNeue(
fontSize: 60,
height: 1,
),
),
),
Container(
height: 20,
decoration: BoxDecoration(
color: Color.fromRGBO(25, 25, 25, 1),
borderRadius: BorderRadius.only(
topRight: Radius.circular(30),
topLeft: Radius.circular(30)),
),
),
],
),
),
flexibleSpace: FlexibleSpaceBar(
stretchModes: [
StretchMode.zoomBackground,
StretchMode.blurBackground
],
background: Image.asset(
barImagePath,
width: double.maxFinite,
fit: BoxFit.cover,
opacity: const AlwaysStoppedAnimation(.4),
),
// Stack(
// alignment: Alignment.bottomCenter,
// children: [
// Image.asset(
// barImagePath,
// width: double.maxFinite,
// fit: BoxFit.cover,
// opacity: const AlwaysStoppedAnimation(.4),
// ),
// Container(height: 2, color: Color.fromRGBO(25, 25, 25, 1)),
// ],
// ),
),
),
Related
I have 5 sizedBox and each sizedbox has many widgets,sizedboxes are inside a container inside scaffold, when I run my application, got an message in emulator that :
Column(
children:[
SizedBox(...
SizedBox(...
SizedBox(...
SizedBox(...
SizedBox(...
SizedBox(...
],
),
Its one of my sized box
return Scaffold(
// resizeToAvoidBottomInset: false,
appBar: AppBar(
backgroundColor: ColorManager.mainDarkPrimary,
title: const Text(AppStrings.appName),
),
body: Column(
children: [
Container(
height: 200,
decoration: BoxDecoration(
borderRadius: const BorderRadius.only(
bottomLeft: Radius.circular(50),
),
color: ColorManager.darkPrimary,
),
child: Stack(
children: [
Positioned(
top: 80,
right: 0,
child: Container(
height: 80,
width: 300,
decoration: BoxDecoration(
color: ColorManager.white,
borderRadius: const BorderRadius.only(
topLeft: Radius.circular(50),
bottomLeft: Radius.circular(50),
),
),
),
),
Positioned(
top: 105,
right: 40,
child: Text(
AppStrings.appShorDescription,
style: TextStyle(
fontSize: FontSize.s20, color: ColorManager.darkGrey),
),
),
],
),
),
SizedBox(
height: height * 0.05,
),
Column(
children: [
SizedBox(
height: 110,
child: Stack(
clipBehavior: Clip.none,
children: [
Positioned(
top: 35,
right: 20,
child: Material(
child: Container(
height: 75.0,
width: width * 0.9,
decoration: BoxDecoration(
color: ColorManager.white,
borderRadius: BorderRadius.circular(0.0),
boxShadow: [
BoxShadow(
color: ColorManager.grey,
offset: const Offset(-10.0, 10.0),
blurRadius: 20.0,
spreadRadius: 4.0),
],
),
),
),
),
Positioned(
top: 0,
right: 30,
child: Card(
elevation: 10.0,
shadowColor: ColorManager.grey,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15.0),
),
child: Container(
height: 65,
width: 65,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10.0),
image: DecorationImage(
fit: BoxFit.fill,
image: AssetImage(
AppStrings.mozafatiDatesUrl))),
),
),
),
Positioned(
top: 50,
right: 120,
// ignore: sized_box_for_whitespace
child: Container(
height: 60,
width: 160,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
(Text(
AppStrings.mozafatiDatesName,
style: TextStyle(
fontSize: FontSize.s16,
color: ColorManager.darkGrey,
fontWeight: FontWeightManager.bold),
)),
(Text(
AppStrings.mozafatiDatesName,
style: TextStyle(
fontSize: FontSize.s12,
color: ColorManager.darkGrey,
fontWeight: FontWeightManager.bold),
)),
Divider(
color: ColorManager.darkPrimary,
),
],
),
))
],
),
),
button overflow flutter
, a renderFlex overfloed by 146 pixels on the buttom
how can I place 5 sizedbox in scroll
Make your Column scrollable by wrapping it with a SingleChildScrollView:
SingleChildScrollView(
child: Column(
children: [SizedBox(), SizedBox()])
)
return Scaffold(
body: Container(
child: ListView(
shrinkWrap: true,
children: [
SizedBox(),
SizedBox(),
SizedBox(),
],
),
),
);
You can wrap Column with SingleChildScrollView widget
SingleChildScrollView(child:Column(
children:[
SizedBox(...
SizedBox(...
SizedBox(...
SizedBox(...
SizedBox(...
SizedBox(...
],
),)
I want my silverapp bar in this format:
my code is as follows:
body: CustomScrollView(slivers: [
SliverAppBar(
backgroundColor: Colors.black,
expandedHeight: 200,
flexibleSpace: FlexibleSpaceBar(
background: Container(
color: Colors.blue[100],
margin: EdgeInsets.all(5),
child: Column(
children: [
Row(
children: [
AnimatedContainer(
height: 150,
width: 150,
margin: EdgeInsets.all(10),
alignment: Alignment.center,
decoration: BoxDecoration(
borderRadius: borderRadius,
color: color1,
),
child: Image.network(
'https://thumbs.dreamstime.com/b/pizza-rustic-italian-mozzarella-cheese-basil-leaves-35669930.jpg',
height: 200,
width: 150,
),
duration: Duration(seconds: 3),
curve: Curves.bounceInOut,
),
SizedBox(
width: 10,
),
Container(
child: Column(
// ignore: prefer_const_literals_to_create_immutables
children: [
Text(
'NAME: PIZZA',
style: TextStyle(fontWeight: FontWeight.bold),
),
],
),
)
],
),
],
),
),
),
),
SliverAppBar(
backgroundColor: Colors.black,
expandedHeight: 200,
flexibleSpace: FlexibleSpaceBar(
background: Container(
color: Colors.blue[50],
margin: EdgeInsets.all(5),
child: Column(
children: [
Row(
children: [
AnimatedContainer(
height: 150,
width: 150,
margin: EdgeInsets.all(10),
alignment: Alignment.center,
decoration: BoxDecoration(
borderRadius: borderRadius,
color: color1,
),
child: Image.network(
'https://thumbs.dreamstime.com/b/pizza-rustic-italian-mozzarella-cheese-basil-leaves-35669930.jpg',
height: 200,
width: 150,
),
duration: Duration(seconds: 3),
curve: Curves.bounceInOut,
),
SizedBox(
width: 10,
),
Container(
child: Column(
// ignore: prefer_const_literals_to_create_immutables
children: [
Text(
'NAME: PIZZA',
style: TextStyle(fontWeight: FontWeight.bold),
),
],
),
)
],
),
],
),
),
),
),
I have 4 more SilverAppBars with the same internal structure. How to place these app bars one over another as in the example image? I want the appbars to overlap each other and move in the same way as in the sample video.
Currently my app looks like this:
In my mobile app I am expecting the tennis ball image to be there in right top corner
Image Expected
But currently it looks like this,
Image Current
the code is as below,
Expanded(
flex: 9,
child: Column(
children: [
Container(
height: 66,
decoration: BoxDecoration(
color: const Color(0xff3e4982),
borderRadius: BorderRadius.circular(12),
image: DecorationImage(
image: AssetImage(
'assets/transperent_tennis_ball_icon_green.png'),
),
),
),
]
),
)
Please advise how can I get this done?
Try below code hope its help to you. You used Stack widget and Positioned Widget for that. just replace my image with your image.
Center(
child: Stack(
children: [
Container(
padding: EdgeInsets.all(20),
height: 100,
width: 200,
decoration: BoxDecoration(
color: const Color(0xff3e4982),
borderRadius: BorderRadius.circular(12),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'Submit Score',
style: TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
color: Colors.white,
),
),
Text(
'Game Report',
style: TextStyle(
fontSize: 14,
color: Colors.white,
),
),
],
),
),
Positioned(
right: -30,
top: -30,
child: Image.network(
'https://miro.medium.com/max/1400/1*-6WdIcd88w3pfphHOYln3Q.png',
height: 100,
width: 80,
),
),
],
),
),
Your result screen->
you can use stack
Expanded(
flex: 9,
child: Column(
children: [
Container(
height: 66,
decoration: BoxDecoration(
color: const Color(0xff3e4982),
borderRadius: BorderRadius.circular(12),
),
child: Stack(
children: [
Positioned(
top:-25,
right:-25,
child: Container(
height: 66,
width:66,
decoration: BoxDecoration(
shape:BoxShape.circle,
image: DecorationImage(
fit: BoxFit.fill,
image: NetworkImage("https://picsum.photos/500/300?random=1"),
),
),
)
)
])
)]
),
),
just use stack widget to achive this design .
This is my first time here
I face a little problem which is the image that I wanted to put on top of the card do not work properly, the rest of it didn't display
I used (stack & positioned)
What should I do ??
Note : I'm beginner 👀
this is the code :
SizedBox(
width: 500,
height: 100,
child: Container(
child: Padding(
padding:
EdgeInsets.symmetric(horizontal: 10, vertical: 10),
child: Card(
color: Colors.grey.shade400,
child: Stack(children: [
Positioned(
bottom: 40,
left: 150,
child: CircleAvatar(
child: ClipOval(
child: Image.asset(
"assets/images/guy.jpg",
width: 100,
height: 100,
fit: BoxFit.cover,
),
),
backgroundColor: Colors.transparent,
radius: 50,
),
),
]),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15),
),
elevation: 10),
),
)),
and this is the the output :
enter image description here
and i wanted to be like this : enter image description here
if you want like that, then you need to put SizedBox and add size (height and or width) on it it acts as invicible widget to put space on it.
Stack
--Positioned (top 0)
----Column
------SizedBox (add height here around 50x50 px)
------Image (100x100 px)
--Card
Try below code hope its helpful to you. refer for thar Stack class here
Stack(
alignment: Alignment.topCenter,
children: <Widget>[
Padding(
padding: EdgeInsets.only(top: 10),
child: Container(
height: 320,
width: 420,
margin: EdgeInsets.all(16.0),
child: Card(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(20),
),
color: Colors.white,
child: Padding(
padding: const EdgeInsets.all(18.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
mainAxisSize: MainAxisSize.min,
children: [
Text(
'Your Other Widgets',
),
],
),
),
),
),
),
Container(
width: 50,
height: 50,
decoration: ShapeDecoration(
shape: CircleBorder(),
color: Colors.transparent,
),
child: Padding(
padding: EdgeInsets.all(1),
child: DecoratedBox(
decoration: ShapeDecoration(
shape: CircleBorder(),
image: DecorationImage(
fit: BoxFit.cover,
image: AssetImage(
'assets/images/1.png',
),
),
),
),
),
)
],
),
Your Result screen->
in flutter i want to have simple Text inside Container with background color on container, for example:
unfortunately i can't set or make this screen shot with flutter widgets
Expanded(
child: Container(
margin: EdgeInsets.only(top: 10.0),
child: ListView(
children: <Widget>[
Container(
padding: EdgeInsets.only(right: 1.0, left: 1.0),
child: Center(
child: bottomSheetDashBoardItems(
widget.dashboardItems),
),
), //container
], //list view children
), //list view
), //container
), //Expanded
Widget bottomSheetDashBoardItems(List<DashboardItems> dashboardItems) {
return Wrap(
children: dashboardItems
.map((item) => Container(
width: 75.0,
height: 75.0,
margin: EdgeInsets.all(5.0),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.all(Radius.circular(5.0)),
boxShadow: [
BoxShadow(
blurRadius: 0.5,
color: Colors.black,
offset: Offset(0.0, 0.0),
)
]),
child: Center(
child: Stack(
children: <Widget>[
Padding(
padding: const EdgeInsets.only(bottom: 12.0),
child: Align(
alignment: Alignment.center,
child: Image.asset(
item.icon,
width: 40.0,
height: 40.0,
),
),
),
Align(
alignment: Alignment.bottomCenter,
child: Container(
decoration: BoxDecoration(
color: Colors.indigo[400],
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(5.0),
bottomRight: Radius.circular(5.0),
),
),
child: Padding(
padding: const EdgeInsets.only(top: 3.0),
child: Text(
item.title,
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontFamily: 'IranSansLight',
fontSize: 9.0),
),
),
),
),
],
)),
))
.toList());
}
result:
Align(
alignment: Alignment.bottomCenter,
child: Container(
// width: 75.0, <--- remove this width and try
height: 19.0,
decoration: BoxDecoration(
color: Colors.indigo[400],
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(5.0),
bottomRight: Radius.circular(5.0),
),
),
hope work
#1
Do not initiate widget tree through functions. Create a class under StatelessWidget instead. For more info check out this answer.
#2
As for the red bar not auto expanding in width - since you already use Stack, I can suggest a simple solution.
Replace Align (2nd child of Stack) with Positioned like this:
Positioned(
left: 0,
right: 0,
bottom: 0,
height: 19,
child: // ...
)
And remove width property of the Container.
Let me know if this helped.