I'm currently trying to add the text ('Filter'), underneath an icon inside of the actions field within an AppBar.
Without any text being added underneath it. the action aligned exactly with the text and hamburger menu icon
Example:
There are two issues I'm having:
When I add text, the filter icon moves up a little, I want the icon to be the same spot but text added understand.
I'm getting an overflow issue
How can I fix this?
Thanks!
_appbarActions = [
Column(
children: [
IconButton(icon: const Icon(Icons.filter_alt_outlined), onPressed: () {}),
Text('Filter'),
],
)
];
Try the below snippet code:
To remove the space between IconButton and Text use Icon only;
For the overflow error you can manage the icon size with text fontSize (styles);
For events wrap the column by InkWell widget
Container(
margin: const EdgeInsets.only(right: 8.0),
child: InkWell(
onTap: () {},
child: Stack(
children: [
Center(
child: Icon(Icons.filter_alt_outlined),
),
Positioned(
child: Text(
'Filter',
style: TextStyle(fontSize: 10.0),
),
bottom: 5,
),
],
),
),
)
Unlike native iOS, Scrollable could still scroll even there is only a little height of the content inside the scroll view. So the question is:
How to make SingleChildScrollView scrollable even content hight is lower than the scroll view height?
FYI, Even I expanded my content to fit the parent container. following this link, The SingleChildScrollView still couldn't scroll.
Here this is definitely a hack but it works it doesn't seem like this should be this hard to figure out. If this is unacceptable to you let me know I'll see what else I can figure out that is more legit.
Container(
height: 400,
child: ListView(
children: <Widget>[
Container(
padding: const EdgeInsets.symmetric(vertical: 500),
child: Column(
children: <Widget>[
...numbers.map(
(number) => Text(
number.toString(),
textAlign: TextAlign.center,
style: TextStyle(fontSize: 20),
),
),
],
),
),
],
),
),
I did not try this with SingleChildScrollView
I'm trying to make an item go to the bottom of a list. I've tried using Expanded with a child of SizedBox. I've also tried the Align widget. It works with a Column, but not if the parent is a SingleChildScrollView.
What it should look like:
What it does look like:
Code (what it does look like):
return Scaffold(
backgroundColor: Color(0xFFE9E9E9),
body: ListView(
padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 16),
children: <Widget>[
Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
),
child: _SettingsList(tournamentId: tournamentId),
),
Expanded(child: const SizedBox()),
Align(
alignment: FractionalOffset.bottomCenter,
child: buildDeleteTournamentButton(),
),
],
),
);
I think the problem is that you are using the Expanded or Align widget as a child of the list view so it tries to put the widget directly below the other ones. To achieve the first design I would recommend one of this two ways:
Replace your ListView with a Stack and use Align to align your "Delete tournament"-Widget at the bottom.
Replace your ListView with a Column and wrap the Container in an Expanded. Place your "Delete tournament"-Widget as the second child of the Column.
I really hope I could help.
I'm trying to embed a flat button with a variable amount of text within a scroll view, so that the user can scroll the text but also tap it in order to perform an action. I tried doing this with a flat button embedded in a ConstrainedBox, which itself is embedded in a SingleChildScrollView.
I've tried embedding the FlatButton in a SingleChildScrollView as below. Earlier, I tried wrapping the text in an expanded widget with a SingleChildScrollView ancestor but that caused runtime errors because the requirements of the scroll view and the expanded view conflict (as far as I understand).
Widget contentScreen() {
return SingleChildScrollView(
child: ConstrainedBox(
constraints: BoxConstraints(),
child: FlatButton(
onPressed: () {
_toggleContent();
},
child:
Column(children: <Widget>[
Container(
child: Text(
"Lorem Ipsum....",
style: TextStyle(color: Colors.white, fontSize: 20))),
]
)
)
)
);
}
The text just doesn't scroll. Instead it overflows and shows the diagonal yellow bars. I don't have a list of exactly what I've tried, but where I'm at right now is that I'm using the above code but there is no scrolling behavior as expected. :\
I tried this: How to make the Scrollable text in flutter?
This: Make scrollable Text inside container in Flutter
And this: how to make text or richtext scrollable in flutter?
Is there something about the FlatButton's behavior that just precludes scrolling? If so, how can I work around that to still get the two behaviors (ability to both scroll and tap to perform action) that I want?
Have you tried this? Why do you need Expanded widget?
Container(
height: 20.0,
child: FlatButton(
onPressed: () {},
child: SingleChildScrollView(
child: Text('Lorem ipsum'),
),
),
),
Gesture Detector should also work well.
Container(
height: 20.0,
child: FlatButton(
onPressed: () {},
child: SingleChildScrollView(
child: Text('Lorem ipsum'),
),
),
),
I am trying to wrap my head around ui placement in Flutter. So I currently have something that looks like this
I would like to add a little space b/w search Textfield and the button.
This is what the controlling part of my code looks like. I am trying to style my textFieldSearchBox so it has a little margin on the right, I tried trying to increase the Edge insets but it seems to increase the size of the TextField I don't know why? I know I could adding a padding element after TextField but I wanted to know what my other options are.Why does increasing the EdgeInsets in the decoration of textFieldSearchBox increase the size of the textbox? My ideal situation would be to add margin around all the borders of this textbox (LTRB).
Any suggestions?
TextField textFieldSearchBox = new TextField(
keyboardType: TextInputType.text,
controller: filterController,
autofocus: false,
decoration: new InputDecoration(
contentPadding: new EdgeInsets.fromLTRB(20.0, 10.0, 100.0, 10.0),
border:
new OutlineInputBorder(borderRadius: BorderRadius.only()),
),
);
var optionRow = new Row(
children: <Widget>[
new Expanded(child:textFieldSearchBox),
searchButton,
new IconButton(
icon: new Icon(Icons.filter),
onPressed: (){print("Called....");},
),
],
);
return new Scaffold(
appBar: new AppBar(
title: new Text("Title goes here.."),
backgroundColor: Colors.lightBlueAccent,
),
body: new Container(
child:new Column(
children: <Widget>[
optionRow,
],
),
),
);
How to add margin to a widget
In Flutter we generally talk about adding Padding around a widget rather than margin. The Container widget does have a margin parameter, but even this just wraps it child (and any decoration that the child has) with a Padding widget internally.
So if you have something like this
and you want to add some space around the widget like this
then you just wrap the widget with Padding. This is easy to do if you put your cursor on the widget name and press Alt+Enter (or Option+Return on a Mac) in Android Studio. Then choose Add padding from the menu.
which gives you something like this
Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
"text",
style: TextStyle(fontSize: 20.0),
),
);
Meaning of EdgeInsets
When you are setting padding you can't directly use an integer or double. You have to specify the space (number of logical pixels) using the EdgeInsets. You can set all of the sides at once (as we saw in the example above), or you can set them individually like this:
Widget myWidget() {
return Padding(
padding: const EdgeInsets.only(
left: 40,
top: 20,
right: 40,
bottom: 20,
),
child: Text("text"),
);
}
Since in this example left and right are the same and top and bottom are the same, we can simplify EdgeInsets to
padding: const EdgeInsets.symmetric(
horizontal: 40,
vertical: 20,
),
Using a Container to set padding and margin
An alternate method is to wrap your widget in a Container. The Container widget has both a padding and a margin property. (This would only be necessary, though, if you were also adding a decoration like background color or a border.)
Widget myWidget() {
return Container(
margin: EdgeInsets.all(30),
padding: EdgeInsets.all(20),
decoration: BoxDecoration(
color: Colors.yellow,
border: Border.all(color: Colors.black),
),
child: Text(
"Flutter",
style: TextStyle(
fontSize: 50.0
),
),
);
}
Why does increasing the EdgeInsets in the decoration of textFieldSearchBox increase the size of the textbox ?
Because that padding is used for the internal padding. The one you see between the borders and the actual text.
My ideal situation would be to add margin around all the borders of this textbox (LTRB). Any suggestions ?
Wrap your TextField into a Padding. That is the ideal way to achieve the desired layout in flutter.
final textFieldSearchBox = new Padding(
padding: const EdgeInsets.only(right: 8.0),
child: new TextField(
keyboardType: TextInputType.text,
controller: filterController,
autofocus: false,
decoration: new InputDecoration(
contentPadding: new EdgeInsets.fromLTRB(20.0, 10.0, 100.0, 10.0),
border: new OutlineInputBorder(borderRadius: BorderRadius.only()),
),
),
);
You can put the component inside a padding, like this
var optionRow = new Row(
children: <Widget>[
new Expanded(child:textFieldSearchBox),
new Padding(padding: new EdgeInsets.all(20.0),child:button,),
new IconButton(
icon: new Icon(Icons.filter),
onPressed: (){print("Called....");},
),
],
);
Since the layout of your widgets is Row, why do not you add the mainAxisAlignment property to it like this:
mainAxisAlignment : MainAxisAlignment.spaceAround
Or
mainAxisAlignment : MainAxisAlignment.spaceBetween
Simply use
EdgeInsets.fromLTRB
For example:
padding: EdgeInsets.fromLTRB(10.0, 10.0, 10.0, 10.0),
You can also use SizedBox if you want to avoid using Container
There are some widgets which allow that using a parameter, but in most cases You can wrap the Widget in a Padding widget like so.
From this
YourWidget(
....
)
To This
Padding(
padding: EdgeInsets.all(value),
YourWidget(
....
)
)
Where "all" can be replaced with the variant of your choice
In Flutter we generally talk about adding Padding around a widget rather than margin. The Container widget does have a margin parameter, but even this just wraps it child (and any decoration that the child has) with a Padding widget internally.strong text