Here is my code
Container(
child: Positioned(
left: offset.dx,
top: offset.dy,
child: GestureDetector(
onPanUpdate: (details) {
setState(() {
offset = Offset(offset.dx + details.delta.dx, offset.dy + details.delta.dy);
print('offset $offset');
});
},
child: Text(_controller.text, textAlign: TextAlign.center, maxLines: 3,
style: TextStyle(fontWeight: FontWeight.bold, fontSize: 20.0, color: colorrr)),),
),
)
The easiest way would be for you to put the fontSize in the State of your Widget, and update it from a button or tap somewhere.
Essentially, just like you update the offset, you can update a state variable named fontSize and use it in your TextStyle.
For resize text you may use
dependencies:
auto_size_text: ^3.0.0
import dart code:
import 'package:auto_size_text/auto_size_text.dart';
GestureDetector ontap inside use that code :
onTap: () {
child: AutoSizeText(
'This string will be automatically resized to fit in two lines.',
style: TextStyle(fontSize: 30),
maxLines: 2,
);
Hope you will get solution .
Also to know about package: https://pub.dev/packages/auto_size_text/install
I want to set 'vertical-align: super' on TextSpan.
I want the result like this:
Another answer used Unicode superscript characters but not all characters have superscript version. In that case you can use WidgetSpan together with Transform.translate. You'll have to tweak fontSize and y-offset until it fits your layout.
RichText(
text: TextSpan(
children: [
TextSpan(text: 'Usage (m'),
WidgetSpan(
child: Transform.translate(
offset: const Offset(0.0, -7.0),
child: Text(
'3',
style: TextStyle(fontSize: 10),
),
),
),
TextSpan(text: ')'),
],
),
)
Linked answers use Row and Text widgets to achieve this effect but I needed to use RichText. One way to achieve this is to use Unicode superscript characters:
https://en.wikipedia.org/wiki/Unicode_subscripts_and_superscripts
Example code:
RichText(
text: TextSpan(
children: [
TextSpan(text: 'Usage (m'),
TextSpan(text: '³'),
TextSpan(text: ')'),
],
),
)
I am using RichText and in this
text justify is not working correctly with RichText when using any of text span with style decoration: TextDecoration.underline
RichText(
softWrap: true,
textAlign: TextAlign.justify,
text: TextSpan(
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.w500,
fontSize: 16.0,
),
children: getSpan(),
),
)
List<TextSpan> getSpan() {
List<TextSpan> spans = List<TextSpan>();
spans.add(TextSpan(
text:
"And thus We made them rise ",
));
spans.add(
TextSpan(
text: " they ",
style: TextStyle(
decoration: TextDecoration.underline,
),
recognizer: TapGestureRecognizer()
..onTap = () {
print("click on me");
}),
);
spans.add(TextSpan(
text:
" And thus We made them rise ",
));
return spans;
}
It looks like a nasty effect of textAlign property when set to TextAlign.justify.
RichText(
softWrap: true,
//textAlign: TextAlign.justify,
text: TextSpan(
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.w500,
fontSize: 16.0,
),
children: getSpan(),
),
)
Updated to 21/03/19
The bug it is now fixed and at the moment (21/03/19) it is available in the master flutter channel:
flutter channel master
This question already has answers here:
Flutter - Wrap text on overflow, like insert ellipsis or fade
(23 answers)
Closed 3 years ago.
I want wrap text as text grows. I searched through and tried wrap with almost everything but still text stays one line and overflows from the screen.
Does anyone know how to achieve this?
Any help is highly appreciated!
Positioned(
left: position.dx,
top: position.dy,
child: new Draggable(
data: widget.index,
onDragStarted: widget.setDragging,
onDraggableCanceled: (velocity, offset) {
setState(() {
position = offset;
widget.secondCallback(offset, widget.index);
widget.endDragging();
});
},
child: new GestureDetector(
onTap: () {
widget.callback(widget.caption, widget.index);
},
child: new Text(
widget.caption.caption,
style: new TextStyle(
color: widget.caption.color,
fontSize: widget.caption.fontSize,
),
),
),
feedback: new Material(
type: MaterialType.transparency,
child: new Text(
widget.caption.caption,
style: new TextStyle(
color: widget.caption.color,
fontSize: widget.caption.fontSize),
softWrap: true,
),
),
));
The Flexible does the trick
new Container(
child: Row(
children: <Widget>[
Flexible(
child: new Text("A looooooooooooooooooong text"))
],
));
This is the official doc https://flutter.dev/docs/development/ui/layout#lay-out-multiple-widgets-vertically-and-horizontally on how to arrange widgets.
Remember that Flexible and also Expanded, should only be used within a Column, Row or Flex, because of the Incorrect use of ParentDataWidget.
The solution is not the mere Flexible
In a project of mine I wrap Text instances around Containers. This particular code sample features two stacked Text objects.
Here's a code sample.
//80% of screen width
double c_width = MediaQuery.of(context).size.width*0.8;
return new Container (
padding: const EdgeInsets.all(16.0),
width: c_width,
child: new Column (
children: <Widget>[
new Text ("Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 Long text 1 ", textAlign: TextAlign.left),
new Text ("Long Text 2, Long Text 2, Long Text 2, Long Text 2, Long Text 2, Long Text 2, Long Text 2, Long Text 2, Long Text 2, Long Text 2, Long Text 2", textAlign: TextAlign.left),
],
),
);
[edit] Added a width constraint to the container
Using Ellipsis
Text(
"This is a long text",
overflow: TextOverflow.ellipsis,
),
Using Fade
Text(
"This is a long text",
overflow: TextOverflow.fade,
maxLines: 1,
softWrap: false,
),
Using Clip
Text(
"This is a long text",
overflow: TextOverflow.clip,
maxLines: 1,
softWrap: false,
),
Note:
If you are using Text inside a Row, you can put above Text inside Expanded like:
Expanded(
child: AboveText(),
)
Use Expanded
Expanded(
child: new Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
new Text(_name, style: Theme.of(context).textTheme.subhead),
new Container(
margin: const EdgeInsets.only(top: 5.0),
child: new Text(text),
),
],
),
If it's a single text widget that you want to wrap, you can either use Flexible or Expanded widgets.
Expanded(
child: Text('Some lengthy text for testing'),
)
or
Flexible(
child: Text('Some lengthy text for testing'),
)
For multiple widgets, you may choose Wrap widget. For further details checkout this
Try Wrap widget to wrap text as text grows:
Example:
Wrap(
direction: Axis.vertical, //Vertical || Horizontal
children: <Widget>[
Text(
'Your Text',
style: TextStyle(fontSize: 30),
),
Text(
'Your Text',
style: TextStyle(fontSize: 30),
),
],
),
You Can Wrap your widget with Flexible Widget and than you can set property of Text using overflow property of Text Widget.
you have to set TextOverflow.clip
for example:-
Flexible
(child: new Text("This is Dummy Long Text",
style: TextStyle(
fontFamily: "Roboto",
color: Colors.black,
fontSize: 10.0,
fontWeight: FontWeight.bold),
overflow: TextOverflow.clip,),)
hope this help someone :)
Container(
color: Color.fromRGBO(224, 251, 253, 1.0),
child: ListTile(
dense: true,
title: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
RichText(
textAlign: TextAlign.left,
softWrap: true,
text: TextSpan(children: <TextSpan>
[
TextSpan(text: "hello: ",
style: TextStyle(
color: Colors.black, fontWeight: FontWeight.bold)),
TextSpan(text: "I hope this helps",
style: TextStyle(color: Colors.black)),
]
),
),
],
),
),
),
You can use Flexible, in this case the person.name could be a long name (Labels and BlankSpace are custom classes that return widgets) :
new Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
new Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
new Flexible(
child: Labels.getTitle_2(person.name,
color: StyleColors.COLOR_BLACK)),
BlankSpace.column(3),
Labels.getTitle_1(person.likes())
]),
BlankSpace.row(3),
Labels.getTitle_2(person.shortDescription),
],
)
I want a way to make a TextField or EditableText's text wrap onto another line.
And how to make them multiline.
I don't know if it matters, but the EditableText sits inside a ListTile > Card > Container.
This is my code:
return ListTile(
title: Card(
child: Container(
padding: EdgeInsets.all(10.0),
child: EditableText(
textAlign: TextAlign.start,
focusNode: _focusNode,
controller: _textEditingController,
style: TextStyle(
color: Colors.black,
fontSize: 18.0,
),
keyboardType: TextInputType.multiline,
cursorColor: Colors.blue,
),
),
),
);
It doesn't work please help. I have searched everywhere now!
I'm running flutter version: 0.4.4 and dart version: 2.0.0-dev.54.0
You need to set the property maxLines to either null (for infinite growth) or a fixed number.
By default maxLines is equal to 1.