Here is the code for you...i used CSS_TEXT package in this code
import 'package:flutter/material.dart';
import 'package:css_text/css_text.dart';
void main()=>
runApp(MaterialApp(
title: 'Androidmonks',
home: Scaffold(
body: CustomScrollView(
slivers: <Widget>[
SliverAppBar(
title: Text("Sample Slivers"),
leading: Icon(Icons.menu),
backgroundColor: Colors.orangeAccent,
floating: true,
),
SliverList(
delegate: SliverChildListDelegate([
_Home()
]),
)
],
),
)
));
class _Home extends StatelessWidget {
@override
Widget build(BuildContext context) {
String htmlContent = """
<body>
<p style="font-size:1.5em;">
Hello <b style="font-style:italic;color:#bb0000;background:#eeff00">World</b>!!
<br/>
How are you <span style="font-family:RobotoBlack;color:#ff0000;">today?</span>
<br/>
<b>But</b> why are you doing <a href="https://google.com">this?</a><br/>
<br/>
<span style="text-decoration: underline wavy; font-size:2em">Can you tell <del>me</del>?</span>
<br/>
Please visit <a style="font-weight:bold;" href="https://docs.flutter.io">Flutter docs</a>
<br/>
<br/>
<span style="color:#990000ff;background:#4400ff00">
This text is slightly transparent, and has a slightly transparent background too.
</span>
</p>
</body>
<p style="font-size:1.5em;">
Hello <b style="font-style:italic;color:#bb0000;background:#eeff00">World</b>!!
<br/>
How are you <span style="font-family:RobotoBlack;color:#ff0000;">today?</span>
<br/>
<b>But</b> why are you doing <a href="https://google.com">this?</a><br/>
<br/>
<span style="text-decoration: underline wavy; font-size:2em">Can you tell <del>me</del>?</span>
<br/>
Please visit <a style="font-weight:bold;" href="https://docs.flutter.io">Flutter docs</a>
<br/>
<br/>
<span style="color:#990000ff;background:#4400ff00">
This text is slightly transparent, and has a slightly transparent background too.
</span>
</p>
</body>
<p style="font-size:1.5em;">
Hello <b style="font-style:italic;color:#bb0000;background:#eeff00">World</b>!!
<br/>
How are you <span style="font-family:RobotoBlack;color:#ff0000;">today?</span>
<br/>
<b>But</b> why are you doing <a href="https://google.com">this?</a><br/>
<br/>
<span style="text-decoration: underline wavy; font-size:2em">Can you tell <del>me</del>?</span>
<br/>
Please visit <a style="font-weight:bold;" href="https://docs.flutter.io">Flutter docs</a>
<br/>
<br/>
<span style="color:#990000ff;background:#4400ff00">
This text is slightly transparent, and has a slightly transparent background too.
</span>
</p>
</body>
<p style="font-size:1.5em;">
Hello <b style="font-style:italic;color:#bb0000;background:#eeff00">World</b>!!
<br/>
How are you <span style="font-family:RobotoBlack;color:#ff0000;">today?</span>
<br/>
<b>But</b> why are you doing <a href="https://google.com">this?</a><br/>
<br/>
<span style="text-decoration: underline wavy; font-size:2em">Can you tell <del>me</del>?</span>
<br/>
Please visit <a style="font-weight:bold;" href="https://docs.flutter.io">Flutter docs</a>
<br/>
<br/>
<span style="color:#990000ff;background:#4400ff00">
This text is slightly transparent, and has a slightly transparent background too.
</span>
</p>
</body>
<p style="font-size:1.5em;">
Hello <b style="font-style:italic;color:#bb0000;background:#eeff00">World</b>!!
<br/>
How are you <span style="font-family:RobotoBlack;color:#ff0000;">today?</span>
<br/>
<b>But</b> why are you doing <a href="https://google.com">this?</a><br/>
<br/>
<span style="text-decoration: underline wavy; font-size:2em">Can you tell <del>me</del>?</span>
<br/>
Please visit <a style="font-weight:bold;" href="https://docs.flutter.io">Flutter docs</a>
<br/>
<br/>
<span style="color:#990000ff;background:#4400ff00">
This text is slightly transparent, and has a slightly transparent background too.
</span>
</p>
</body>
<p style="font-size:1.5em;">
Hello <b style="font-style:italic;color:#bb0000;background:#eeff00">World</b>!!
<br/>
How are you <span style="font-family:RobotoBlack;color:#ff0000;">today?</span>
<br/>
<b>But</b> why are you doing <a href="https://google.com">this?</a><br/>
<br/>
<span style="text-decoration: underline wavy; font-size:2em">Can you tell <del>me</del>?</span>
<br/>
Please visit <a style="font-weight:bold;" href="https://docs.flutter.io">Flutter docs</a>
<br/>
<br/>
<span style="color:#990000ff;background:#4400ff00">
This text is slightly transparent, and has a slightly transparent background too.
</span>
</p>
</body>
<p style="font-size:1.5em;">
Hello <b style="font-style:italic;color:#bb0000;background:#eeff00">World</b>!!
<br/>
How are you <span style="font-family:RobotoBlack;color:#ff0000;">today?</span>
<br/>
<b>But</b> why are you doing <a href="https://google.com">this?</a><br/>
<br/>
<span style="text-decoration: underline wavy; font-size:2em">Can you tell <del>me</del>?</span>
<br/>
Please visit <a style="font-weight:bold;" href="https://docs.flutter.io">Flutter docs</a>
<br/>
<br/>
<span style="color:#990000ff;background:#4400ff00">
This text is slightly transparent, and has a slightly transparent background too.
</span>
</p>
</body>
<p style="font-size:1.5em;">
Hello <b style="font-style:italic;color:#bb0000;background:#eeff00">World</b>!!
<br/>
How are you <span style="font-family:RobotoBlack;color:#ff0000;">today?</span>
<br/>
<b>But</b> why are you doing <a href="https://google.com">this?</a><br/>
<br/>
<span style="text-decoration: underline wavy; font-size:2em">Can you tell <del>me</del>?</span>
<br/>
Please visit <a style="font-weight:bold;" href="https://docs.flutter.io">Flutter docs</a>
<br/>
<br/>
<span style="color:#990000ff;background:#4400ff00">
This text is slightly transparent, and has a slightly transparent background too.
</span>
</p>
</body>
""";
var myRichText =
HTML.toRichText(context, htmlContent, linksCallback: (link) {
print("You clicked on $link");
});
return Padding(
padding: const EdgeInsets.only(left: 18.0, right: 18.0),
child: SingleChildScrollView(
scrollDirection: Axis.vertical,
child: Center(
child: Column(
children: <Widget>[
myRichText
],
),
),
),
);
}}
I ran this code But it displays below error
RangeError (index):invalid value:Valid value range is empty:-1
please help me solve this error.I am trying this since 2 days but I am not getting positive result. Only SOns are my last hope..
if you need screenshot of the error then please tell me..
I believe your only problem here is that you should not return a scaffold inside a SliverAppbar inside another scaffold.
So you can switch the following line:
return Scaffold(
body: Container(padding: EdgeInsets.all(16.0), child: myRichText));
For this:
return Container(padding: EdgeInsets.all(16.0), child: myRichText));
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