I am using Wrap widget and I got following result.
But I want full width like the following image
What widget should I use? Please guide me a for a piece of code snippet
For this layout you can either use staggeredGridView or if you wish to keep the wrap you have to define the width of each widget. You can probably use
SizedBox(
width: MediaQuery.of(context).size.width * 0.31, //0.33 will give 1/3 of the width.
child: Container(), // your widget here
),
I used assorted_layout_widgets package. That is exactly what I want.
WrapSuper(
wrapType: WrapType.balanced,
wrapFit: WrapFit.larger,
spacing: 8.0,
lineSpacing: 8.0,
children:[]),
Related
I am new in flutter I can't understand that is infinity size render in flutter
If I use container with infinity width then it will render but in box constraints documentation infinity size can't render
This is because there is something constraining the widget, when you set as an example:
Container(
width: double.infinity,
),
it will try to take an infinity size, which usually will throw an error to you, but it's constrained so it takes the max possible width.
The Container widget is built on top of different multiples widgets such as ConstrainedBox, DecoratedBox, Align, LimitedBox... , the ConstrainedBox defaults to the BoxConstraints.expand(), check it's source code:
// ...
child: ConstrainedBox(constraints: const BoxConstraints.expand()),
);
but if you check also the Scaffold source code :
// ....
final BoxConstraints fullWidthConstraints = looseConstraints.tighten(width: size.width);
so trying to expand that Container even within infinity, will expand it at maximum on the fullWidthConstraints which is, in this case, the screen's width.
I'm building an expansible card in flutter, which I wanto to animate. I want the parent Container to have a limited height while the card is collapsed, and to have whatever height is necessary for the child when it's expanded. I can reach this result using maxHeight: double.infinity:
Container(
alignment: Alignment.topCenter,
clipBehavior: Clip.hardEdge,
constraints: isExpanded
? BoxConstraints(maxHeight: double.infinity)
: BoxConstraints(maxHeight: 76),
decoration: BoxDecoration(),
child: widget.child,
),
)
But whatever maxHeight value I use other than double.infinity causes the parent to have that exact height, instead of just having the height needed by the child. I can't use double.infinity because that's not animatable. I've tried following this answer's tips, but whatever I wrap the child with, the parent always grows. I've tried changing the child, but even if I use maxHeight on the child itself, the parent always grows to the defined maxHeight.
Why does this happen? Shouldn't maxHeight only cause the parent to expand if needed? How come it works correctly with double.infinity, but doesn't with anything else?
Also, I have tried reaching this result with AnimatedSize, it sort of works. When it is expanding, it works perfectly, but when the child is collapsing, it collapses instantly, and the AnimatedSize's animation follows after.
Edit:
I see what you mean, you want to use AnimatedContainer, but in order to be animated like you want it, it requires you to specify the height. double.infinity won't do in this case, the error message you're getting is correct.
There are ways to get widget height.. I suggest you check this answer: https://stackoverflow.com/a/49650741/7248289
Also, this one might help: https://stackoverflow.com/a/54173729/7248289
I'm building a card game and using flame to pull the cards from a sprite sheet. The problem is that I set the width and height of the Container that holds the SpriteWidget, but the SpriteWidget expands to either the width or the height of the container, but not both. I want it to expand/stretch to be the same size as the parent container. Unfortunately, the SpriteWidget really has no parameters that could be used to change its size.
I've spent several hours scouring the internet for a solution and tried a number of widgets including FittedBox, Flex, Positioned.fill, etc., but I'm unable to achieve the desired effect. How can I make the SpriteWidget stretch to fill its parent when it has no parameters to do so?
class _PlayerHandPortraitLayout
extends WidgetView<PlayerHand, _PlayerHandController> {
#override
final state;
const _PlayerHandPortraitLayout(this.state) : super(state);
#override
Widget build(BuildContext build) {
return Stack(
children: state.displayHand().asMap().entries.map((cardItem) {
var index = cardItem.key;
var card = cardItem.value;
return Positioned(
left: index * CARD_OVERLAP_OFFSET,
child: Draggable<Container>(
childWhenDragging: Container(),
child: Container(
color: Colors.purple,
width: state.cardWidth,
height: state.cardHeight,
child: SpriteWidget(
sprite: state.spriteImages[card.suite.index][card.value.index],
),
),
feedback: Container(
color: Colors.yellow,
width: state.cardWidth,
height: state.cardHeight,
child: SpriteWidget(
sprite: state.spriteImages[card.suite.index][card.value.index],
),
),
),
);
}).toList(),
);
}
}
actually this will be not possible, SpriteWidget is designed to expand as long as it fits on the smallest dimension available on its parent, you can check on it source code here.
This is done so the Sprite will not get distorted when its parent has a different aspect ratio than the ratio of the Sprite.
If you have an use case where you would want the Sprite to get intentionally distorted, please open an issue on the Flame repository explaining the case, and we can try to take a look on it.
Now when I add a ListTile inside a view (no matter its Column,ListView,...) It gets whole width, I want it to be kinda wrap_content as we have in android.
I know this is an old post but here is a solution I found for future reference:
You can use the IntrinsicWidth widget to stop the ListTile from expanding.
Container(
child: IntrinsicWidth(
child: Column(
children: [
ListTile(title: Text("Hello")),
ListTile(title: Text("There")),
],
)
)
)
As far as I can tell this is not how you are supposed to use ListTile. In the docs it even says:
ListTile requires fixed width constraints
Also, regarding IntrinsicWidth the docs say:
This class is useful, for example, when unlimited width is available and you would like a child that would otherwise attempt to expand infinitely to instead size itself to a more reasonable width. [...] This class is relatively expensive, because it adds a speculative layout pass before the final layout phase. Avoid using it where possible.
may be like this
Row(
children: <Widget>[
ListTile(),
Text("hell")
])
I want to have a line that has 100% parent height, the line should has a fluid height following it's parent's height. the parent's height would be dynamic because every content has it's own height. Just like in Path app.
This is my app, currently I'm setting the height as a constant, how to make it dynamic following it's parent's height? :
Container(
width: 1,
color: Colors. redAccent,
height: 300, // <-- this height
)
try to use the Expanded Widget which uses the available space. you just have to definewhat is the available space here
Expanded(
child: Container(
color: Colors.amber,
width: 100,
),
),
here, if you dont put something on top of the expanded, it will take all the screen
and if not on the bottom, it will reach the bottom of the screen.
it takes the whole free space.
I solved this by adding container and add border left :)