Flutter shape overlapping screen width - flutter

How can I make a shape (or any widget for that matter) overlap the sides of the phone-screen?
I've attached an image that showes what I mean.
Here's my code so far:
Container(
width: 900.0,
height: 900.0,
decoration: new BoxDecoration(
color: Colors.orange,
shape: BoxShape.circle,
),
),
And no, I it doesn't help to increse the size to say 1000, it just stays the same


I just modified the answer.
Transform.scale(
scale: 1.4,
child: Center(
child: Container(
width: 900.0,
height: 900.0,
decoration: new BoxDecoration(
color: Colors.orange,
shape: BoxShape.circle,
),
),
),
)


Add a Transform widget with a proper scale property and remove the height and width in the Container.
Transform.scale(
scale: 1.7,
child: Container(
decoration: new BoxDecoration(
color: Colors.orange,
shape: BoxShape.circle,
),
),
)

Related

Is there any possibility to have a rounded Container with multiple colors?

I have a Container in Flutter, which has 3 different Container with different colors as a child. The Main Container doesn't have rounded corners. Any ideas?
Container(
decoration: const BoxDecoration(
borderRadius: BorderRadius.all(Radius.circular(20.0)),
),
height: 8,
width: 300,
child: Row(children: [
Container(
decoration: BoxDecoration(color: Colors.lightGreen),
width: 300 * 0.37,
),
Container(
decoration: BoxDecoration(color: Colors.grey[300]),
width: 300 * 0.15,
),
Expanded(
child: Container(
decoration: BoxDecoration(color: Colors.redAccent),
),
),
]),
),

Wrap your outer container with ClipRRect and give it a border radius:
ClipRRect(
borderRadius: BorderRadius.circular(20),
child: Container(
decoration: const BoxDecoration(
borderRadius: BorderRadius.all(Radius.circular(20.0)),
),
height: 100,
width: 300,
child: Row(children: [
Container(
decoration: BoxDecoration(color: Colors.lightGreen),
width: 300 * 0.37,
),
Container(
decoration: BoxDecoration(color: Colors.grey[300]),
width: 300 * 0.15,
),
Expanded(
child: Container(
decoration: BoxDecoration(color: Colors.redAccent),
),
),
]),
),
),

You can give different border and color for each container like that
Container(child : Widget(),
decoration: BoxDecoration(
border: Border.all(
color: Colors.anyColor,
),
borderRadius: BorderRadius.all(Radius.circular(anyValue))
))

How to create circle container with border in flutter?

As you can notice, the background color of the decoration is slightly overflowing the circular border. I've tried in different ways (e.g. using ClipOval) but the result is always the same.

Container(
height: 200,
width: 200,
decoration: BoxDecoration(
shape: BoxShape.circle,
border: Border.all(width: 1, color: Colors.red)
),
),

I have just faced the same issue...
Easy workaround:
Container(
width: 28,
height: 28,
decoration: BoxDecoration(
color: Colors.green.withOpacity(0.25), // border color
shape: BoxShape.circle,
),
child: Padding(
padding: EdgeInsets.all(2), // border width
child: Container( // or ClipRRect if you need to clip the content
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Colors.blue, // inner circle color
),
child: Container(), // inner content
),
),
),
Ref:

Container(
height:80,
width:80,
decoration:BoxDecoration(
color:Colors.red,
borderRadius:BorderRadius.circular(50),
border:Border.all(
color:Colors.white,
width:8
),
),
child:
Center(child:
Text("4",
style:TextStyle(
color:Colors.white,
fontWeight:FontWeight.bold,
fontSize:20
)))
Container with border

Scaled Container Overlapping Parent-widget flutter [duplicate]

This question already has answers here:
Flutter mask a circle into a container
(2 answers)
Closed 2 years ago.
How do I make this blue-circle not overlap the green-box, but insted be confined to the inner bounderyes of the green-box?
Code:
Container(
width: 300,
height: 100,
color: Colors.green,
child: Transform.scale(
scale: 2,
child: Container(
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Colors.blue
),
),
),
),
Pictures tells the rest:
Thx already
- Tobias

I was able to do this using ClipRect widget with hardEdge on clipBehaviour property.
Center(
child: Container(
width: 300,
height: 100,
color: Colors.green,
child: ClipRect(
clipBehavior: Clip.hardEdge,
child: Transform.scale(
scale: 2,
child: Container(
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Colors.blue,
),
),
),
),
),
),

How to add border radius to a container in flutter?

I'm trying to add border radius to my container but can't get it to work for me.
Container(
color: ColorPallete.secondColor[50],
height: 400.0,
width: 500.0,
padding: const EdgeInsets.all(10.0),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10.0),
),
child: SvgPicture.asset(
'assets/images/svg/megacategory/art__grocery.svg',
),
),

the error that you are receiving is that whenever you have a decoration for a container you need to make sure that color parameter is in the decoration instead of just the container. Below I have changed your code to not produce that error message, if you are still having issues getting the border radius to work after this change let me know!
Container(
height: 400.0,
width: 500.0,
padding: const EdgeInsets.all(10.0),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10.0),
color: ColorPallete.secondColor[50],
),
child: SvgPicture.asset(
'assets/images/svg/megacategory/art__grocery.svg',
),
),

If you have decoration property in the container, you are supposed to pass the color within the decoration and not the container directly.
Container(
//Not allowed color: ColorPallete.secondColor[50],
height: 400.0,
width: 500.0,
padding: const EdgeInsets.all(10.0),
decoration: BoxDecoration(
color: ColorPallete.secondColor[50], //place it here
borderRadius: BorderRadius.circular(10.0),
),
child: SvgPicture.asset(
'assets/images/svg/megacategory/art__grocery.svg',
),
),

Container(
height: 200.0,
width: 300.0,
padding: const EdgeInsets.all(10.0),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10.0),
color: Colors.green[50],
),
child: AssetImage(
'assets/images/index.png',
),
),

border radius not apply inside container widget

Border radius not apply inside child Container.
Tried with SizedBox & Stack widget.
I need border view inside container.
Scaffold(
appBar: AppBar(
title: new Text("ListView"),
),
body: Center(
child: Padding(
padding: EdgeInsets.all(15.0),
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(15.0),
border: Border.all(
color: Colors.green,
width: 2.0
)
),
child: Container(
color: Colors.red,
)
),
)
)
)

Try this,
Use ClipRRect and nest inside another Container and now you can add non-uniform borders
Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(10),
boxShadow: [BoxShadow(color: Colors.black12, blurRadius: 5)],
),
child: ClipRRect(
borderRadius: BorderRadius.circular(10),
child: Container(
padding: EdgeInsets.all(20),
decoration: BoxDecoration(
border: Border(
left: BorderSide(color: Colors.indigo, width: 5),
),
),
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Icon(Icons.home),
Text("Home"),
],
),
),
),
)

Other answers already state that you need to use ClipRRect to apply the border radius to the child widget of Container.
However, Container widget now has its clipBehaviour property to clip its child:
Container(
// Add the line below
clipBehavior: Clip.hardEdge,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(15.0),
border: Border.all(color: Colors.green, width: 2.0)),
child: Container(
color: Colors.red,
),
);
It's a good pratice to use this property rather than nest the widgets for a clean code.

decoration is painted behind the child. If you want the decoration to be applied in front of the container's child, use foregroundDecoration
Scaffold(
appBar: AppBar(
title: new Text("ListView"),
),
body: Center(
child: Padding(
padding: EdgeInsets.all(15.0),
child: Container(
foregroundDecoration: BoxDecoration(
borderRadius: BorderRadius.circular(15.0),
border: Border.all(
color: Colors.green,
width: 2.0
)
),
child: Container(
color: Colors.red,
)
),
)
)
)
above code paints border in front of the child container. Please note that, even with foregroundDecoration child container would still have sharp corners.
If you want the child container to have rounded corners, either you need apply borderRadius to the child container or use ClipRRect with same border radius as the parent container

Instead of
Container
widget use
ClipRRect
Before (not working):
Center(
child: Container(
decoration: BoxDecoration(
borderRadius: _getAllRoundedBorderRadius(),
),
child: Hero(
tag: "CossackHero",
child: TweenImage(
last: AssetImage("images/background/cossack_0.jpg"),
first: AssetImage("images/background/c_cossack_0.jpg"),
duration: 2,
height: height,
),
),
),
),
After:
Center(
child: ClipRRect(
borderRadius: getAllRoundedBorderRadius(),
child: Hero(
tag: "CossackHero",
child: TweenImage(
last: AssetImage("images/background/cossack_0.jpg"),
first: AssetImage("images/background/c_cossack_0.jpg"),
duration: 2,
height: height,
),
),
),
),

Screenshot:
With ClipRRect (Using 2 Container)
ClipRRect(
borderRadius: BorderRadius.circular(16),
child: Container(
width: 100,
height: 100,
color: Colors.black,
child: Container(
margin: EdgeInsets.all(8),
color: Colors.blue,
),
),
)
Without ClipRRect (Using 1 Container)
Container(
width: 100,
height: 100,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(16),
border: Border.all(
color: Colors.black,
width: 4,
),
color: Colors.blue,
),
)

Replace your code with this
Scaffold(
appBar: AppBar(
title: new Text("ListView"),
),
body: Center(
child: Padding(
padding: EdgeInsets.all(15.0),
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(15.0),
border: Border.all(
color: Colors.green,
width: 2.0
)
),
child: Container(
decoration: new BoxDecoration(borderRadius:
BorderRadius.circular(15.0),
color: Colors.red,),
)
),
)
)
)

const innerRadius = 15.0;
const borderWidth = 2.0;
const borderColor = Colors.green;
const color = Colors.red;
const size = 100.0;
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(innerRadius + borderWidth),
color: borderColor,
),
padding: EdgeInsets.all(borderWidth),
child: ClipRRect(
borderRadius: BorderRadius.circular(innerRadius),
child: Container(
color: color,
width: size,
height: size,
),
),
);
This is how it looks:
And how it works: https://codepen.io/mshibanami/pen/LYyQJXa
By the way, some answers suggest you using one Container that has decoration including border and color like this:
Container(
width: size,
height: size,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(innerRadius),
border: Border.all(
color: borderColor,
width: borderWidth,
),
color: color,
),
)
It's OK but not ideal because the inner color appears slightly outside the border. So when the border is close to the background color, it may stand out like this:

try
decoration: BoxDecoration(
gradient: new LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
stops: [0.02, 0.02],
colors: [Colors.red, Colors.white],
),
borderRadius: BorderRadius.all(Radius.circular(10)),
color: Colors.white,
boxShadow: [
BoxShadow(color: Colors.grey, blurRadius: 5.0),
],
),

you have to just add these line of code clipBehavior:Clip.hardEdge,
Scaffold(
appBar: AppBar(
title: new Text("ListView"),
),
body: Center(
child: Padding(
padding: EdgeInsets.all(15.0),
child: Container(
clipBehavior:Clip.hardEdge,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(15.0),
border: Border.all(
color: Colors.green,
width: 2.0
)
),
child: Container(
color: Colors.red,
)
),
)
)
)

I guess your container might just not be visible because it has no child/height/width.
Try adding some Text as a child or if you want it to expand, you can force with SizedBox.expand.
See this answer for example on borders.