I have a string and I would like to have an icon from the material icons displayed in that string. Currently, the only workaround is to use the standard emoji codes (e.g. '\u26A0').
I'm not quite sure how to do this. The reason I can't use a widget here is because I'm using a validator, and if the amount of characters are not met, the validator returns a string that reads out what the issue is. I'm trying to add a warning icon to it.
Would appreciate some help, thanks in advance!
The solution to your use case is WidgetSpan here is simple example of how to use it
Text.rich(
TextSpan(
children: <InlineSpan>[
TextSpan(text: 'call me'),
WidgetSpan(
child:Icon(Icons.phone)
),
],
)
),
Related
How can I achieve something like this?
That the textfields value is showing (...) when text is bigger than the remaining space
When the text input
I know we can use overflow: TextOverflow.ellipsis, in a Text widget. How can we do something similar in textfield value?
i think for now ,there is no parameter to set overflow on TextField
since the issue still open on official repository here.
maybe you can use another plugin like auto_size_text_field
AutoSizeTextField(
controller: _controller,
overflowReplacement: Text(
_controller.text,
style: const TextStyle(overflow: TextOverflow.ellipsis),
),
I want to create a icon from a text like currency symbol. Currency symbols are not available in material icons and i don't want to use any third party library. I want to convert the text string like '$' to Icons and use them.
As per your requirement try below code hope its help to you:
Using \ character
Text(
'\$ Search',
),
Your Output Screen like->
Using Flutter Unicode character. You found Unicode character here
Text(
'Your \u{1F4B2} Symbol',
),
Your result screen like->
You can add any Symbol in between text
Wrap(
crossAxisAlignment: WrapCrossAlignment.center,
children: [
Text('Your'),
Icon(Icons.add),
Text('Icon'),
],
),
Your result screen like->
Or in VS Code you can used Windows + . keys and add any symbol on your need
Please try this one. 0024 is Unicode for $
Icon( IconData(0x0024, fontFamily: 'MaterialIcons'),size: 50, ))
I have an api from which I am fetching messages. These messages might contain emoji.
When it does contain emoji Text Widget is not displaying it correctly.
I just want to display them on the screen. Help if possible.
Thank you :)
class Message{
String text;
Message(){
this.text = get_data_from_api()['text'];
}
}
message = Message();
return Container(
child: Text(message.text),
);
No Displaying text with Emojis on Flutter
won't do it. I can do that but it only works if you have emoji in a string, that is explicitly plasing an emoji in string works fine for me. but when I am using something similar to the code above. I am getting, this
enter image description here
digging more into it I found that if I print my response on console it is
"ðððð"
and if I print a emoji it is 😭
So
I am using
Response.fromStream(await request.send())
from http/http.dart
So is that the problem ?
I did figured it out
I was taking data from an API. So while decoding for some reason it was not decoding utf-8 so what I needed to do was add
utf8.decode(response.bodyBytes);
in place of response.body and it was solved
Reference: Emoji and accent encoding in dart/flutter
If you have an emoji image explicitly present in the response from your API and you want to display it in your text, your should try adding WidgetSpan inside your RichText below is an example of how to do it :
RichText(
text: TextSpan(
children: [
TextSpan(
text: "Click ",
),
WidgetSpan(
child: Icon(Icons.add, size: 14),
),
TextSpan(
text: " to add",
),
],
),
),
In the above example they have used the material icon( Icon(Icons.add)). If you want to replace that from the image your get from the API, you can use ImageIcon instead of Icon widget. Follow this link to know how to use ImageIcon : https://www.woolha.com/tutorials/flutter-using-imageicon-widget-examples
Reference : Add image to RichText element
I want to add an icon with text. I didn't find any clear answer. Please suggest to me how to do this in a flutter. Just like this one.
Here are two approaches, depending on exactly what you want.
RichText with WidgetSpan
Using RichText you can mix TextSpans with WidgetSpans. WidgetSpan allows you to place any Flutter widget inline with the text. For example:
RichText(
text: TextSpan(
style: Theme.of(context).textTheme.body1,
children: [
TextSpan(text: 'Created with '),
WidgetSpan(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 2.0),
child: Icon(Icons.airport_shuttle),
),
),
TextSpan(text: 'By Michael'),
],
),
)
Will give the following:
(Note: MaterialIcons did not include a heart when I answered, but does now with Icons.favorite)
This is a good general purpose solution, but for your specific example there's something simpler...
Emoji
Flutter's text supports Emoji out of the box. So you can do this:
Center(
child: Text(
'Created with ❤ ️by Michael',
maxLines: 1,
),
),
And you get this:
You can also use Unicode escapes in the string and get the same result:
'Created with \u2764️ by Michael'
Note that not all fonts have support for the full set of Emoji, so make sure you test on a variety of devices or use a specific font (see other answer below).
Regarding Emojis, in android not all emojis are supported (depending on OS version).
For full emoji compatibility you can use the google free font Noto Color Emoji at https://www.google.com/get/noto/#emoji-zsye-color
Add it to the fonts folder
add in pubspec.yaml
fonts:
- family: NotoEmoji
fonts:
- asset: fonts/NotoColorEmoji.ttf
weight: 400
use with TextStyle
Text("🤑", TextStyle(fontFamily: 'NotoEmoji'))
For example, I may have one RichText in current widget tree, that looks like
RichText(
text: TextSpan(
text: 'Hello ',
style: DefaultTextStyle.of(context).style,
children: <TextSpan>[
TextSpan(text: 'bold', style: TextStyle(fontWeight: FontWeight.bold)),
TextSpan(text: ' world!'),
],
),
)
I try to use find.text('Hello bold world!') but it doesn't work because it's not a Text.
Framework solution
I have recently contributed this feature to the Flutter framework, i.e. to the built-in finders.
find.text()
You can now enable a findRichText parameter, which will then also find standalone RichText widgets:
find.text(
'Hello bold world!',
findRichText: true,
)
Simplest solution is to put a key on the RichText and read it that way.
If that's not a good fit for whatever reason, you can use find.byWidgetPredicate and pass a function that matches RichText widgets whose text.toPlainText() returns the string you want.
Here's the find.byWidgetPredicate call.
find.byWidgetPredicate((widget) => fromRichTextToPlainText(widget) == 'Hello bold world!')
Here's the fromRichTextToPlainText helper function. Pass it the RichText widget, it will return the plain text.
String fromRichTextToPlainText(final Widget widget) {
if (widget is RichText) {
if (widget.text is TextSpan) {
final buffer = StringBuffer();
(widget.text as TextSpan).computeToPlainText(buffer);
return buffer.toString();
}
}
return null;
}
I solved for this by digging into the widget a bit more manually
final richTextWidget = tester.element(richTextFinder).widget as RichText;
print(richTextWidget.text.children);
With the children, I can assert they are generated as expected