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FLUT-1020062: Enhanced Flutter Radial Gauge UG documentation- #1508 #1548

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FLUT-1020062: Enhanced Flutter Radial Gauge UG documentation- #1508 #1548

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199d0a1
Updated radial ug content
Harsha-SF4223 Jul 29, 2026
1547eec
reverted FlutterFlow changes
Harsha-SF4223 Aug 4, 2026
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37 changes: 34 additions & 3 deletions Flutter/radial-gauge/accessibility.md
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
layout: post
title: Accessibility in Flutter Radial Gauge widget | Syncfusion
description: Learn here all about the accessibility support in Syncfusion Flutter Radial Gauge (SfRadialGauge) widget and how to customize it.
platform: Flutter
platform: flutter
control: SfRadialGauge
documentation: ug
---
Expand All @@ -14,8 +14,38 @@ documentation: ug
The [`SfRadialGauge`](https://pub.dev/documentation/syncfusion_flutter_gauges/latest/gauges/SfRadialGauge-class.html) can be made accessible to screen readers by wrapping it with the flutter [`Semantics`](https://api.flutter.dev/flutter/widgets/Semantics-class.html) widget. This provides meaningful information about the gauge to assistive technologies.

{% tabs %}
{% highlight Dart %}
{% highlight dart %}

import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_gauges/gauges.dart';

void main() {
runApp(const MyApp());
}

class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);

@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Radial Gauge Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(),
);
}
}

class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key}) : super(key: key);

@override
State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
double _value = 50;

@override
Expand All @@ -30,13 +60,14 @@ The [`SfRadialGauge`](https://pub.dev/documentation/syncfusion_flutter_gauges/la
),
);
}
}

{% endhighlight %}
{% endtabs %}

## Sufficient contrast

You can customize the color of the [`SfRadialGauge`](https://pub.dev/documentation/syncfusion_flutter_gauges/latest/gauges/SfRadialGauge-class.html) elements using the following APIs for the sufficient contrast.
You can customize the color of the [`SfRadialGauge`](https://pub.dev/documentation/syncfusion_flutter_gauges/latest/gauges/SfRadialGauge-class.html) elements using the following APIs for a sufficient contrast.

* [Title](https://help.syncfusion.com/flutter/radial-gauge/radial-gauge-title#text-alignment)
* [Axis labels](https://help.syncfusion.com/flutter/radial-gauge/axes#label-style-customization)
Expand Down
156 changes: 91 additions & 65 deletions Flutter/radial-gauge/animation.md
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
layout: post
title: Animation in Flutter Radial Gauge widget | Syncfusion
description: Learn here all about adding and customizing animation of Syncfusion Flutter Radial Gauge (SfRadialGauge) widget and more.
platform: Flutter
platform: flutter
control: SfRadialGauge
documentation: ug
---
Expand All @@ -11,46 +11,59 @@ documentation: ug

## Initial animation

The radial gauge allows all of its elements to be animated with [`enableLoadingAnimation`](https://pub.dev/documentation/syncfusion_flutter_gauges/latest/gauges/SfRadialGauge/enableLoadingAnimation.html) property. The default value for this property is false. The duration of the animation can be controlled by [`animationDuration`](https://pub.dev/documentation/syncfusion_flutter_gauges/latest/gauges/SfRadialGauge/animationDuration.html) property of the gauge.
The radial gauge allows all of its elements to be animated with [`enableLoadingAnimation`](https://pub.dev/documentation/syncfusion_flutter_gauges/latest/gauges/SfRadialGauge/enableLoadingAnimation.html) property. The default value for this property is false. The duration of the animation can be controlled by the [`animationDuration`](https://pub.dev/documentation/syncfusion_flutter_gauges/latest/gauges/SfRadialGauge/animationDuration.html) property of the gauge.

{% tabs %}
{% highlight dart %}

import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_gauges/gauges.dart';

void main() => runApp(const RadialGaugeDemo());

class RadialGaugeDemo extends StatelessWidget {
const RadialGaugeDemo({Key? key}) : super(key: key);

@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: SfRadialGauge(
enableLoadingAnimation: true,
animationDuration: 4500,
axes: <RadialAxis>[
RadialAxis(
minimum: 0,
maximum: 150,
ranges: <GaugeRange>[
GaugeRange(startValue: 0, endValue: 50, color: Colors.green, startWidth: 10, endWidth: 10),
GaugeRange(startValue: 50, endValue: 100, color: Colors.orange, startWidth: 10, endWidth: 10),
GaugeRange(startValue: 100, endValue: 150, color: Colors.red, startWidth: 10, endWidth: 10)
],
pointers: <GaugePointer>[
NeedlePointer(value: 90)
],
annotations: <GaugeAnnotation>[
GaugeAnnotation(
widget: Container(
child: Text('90.0', style: TextStyle(fontSize: 25, fontWeight: FontWeight.bold))
),
angle: 90,
positionFactor: 0.5
)
]
)
]
return MaterialApp(
home: Scaffold(
body: Center(
child: SfRadialGauge(
enableLoadingAnimation: true,
animationDuration: 4500,
axes: <RadialAxis>[
RadialAxis(
minimum: 0,
maximum: 150,
ranges: <GaugeRange>[
GaugeRange(startValue: 0, endValue: 50, color: Colors.green, startWidth: 10, endWidth: 10),
GaugeRange(startValue: 50, endValue: 100, color: Colors.orange, startWidth: 10, endWidth: 10),
GaugeRange(startValue: 100, endValue: 150, color: Colors.red, startWidth: 10, endWidth: 10)
],
pointers: <GaugePointer>[
NeedlePointer(value: 90)
],
annotations: <GaugeAnnotation>[
GaugeAnnotation(
widget: Container(
child: Text('90.0', style: TextStyle(fontSize: 25, fontWeight: FontWeight.bold))
),
angle: 90,
positionFactor: 0.5
)
]
)
]
),
),
),
);
}
}

{% endhighlight %}
{% endtabs %}

![gauge loading animation](images/animation/initial_Animation.gif)

Expand All @@ -66,52 +79,65 @@ The [`enableAnimation`](https://pub.dev/documentation/syncfusion_flutter_gauges/
* `linear`
* `slowMiddle`

The animation type can be changed using the [`animationType`](https://pub.dev/documentation/syncfusion_flutter_gauges/latest/gauges/GaugePointer/animationType.html) property of pointer. By default, the animation type is linear.
The animation type can be changed using the [`animationType`](https://pub.dev/documentation/syncfusion_flutter_gauges/latest/gauges/GaugePointer/animationType.html) property of pointer. By default, the animation type is `ease`.

{% tabs %}
{% highlight dart %}

import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_gauges/gauges.dart';

void main() => runApp(const RadialGaugeDemo());

class RadialGaugeDemo extends StatelessWidget {
const RadialGaugeDemo({Key? key}) : super(key: key);

@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: SfRadialGauge(
axes: <RadialAxis>[
RadialAxis(
axisLineStyle: AxisLineStyle(thickness: 30),
showTicks: false,
pointers: <GaugePointer>[
NeedlePointer(
value: 60,
enableAnimation: true,
needleStartWidth: 0,
needleEndWidth: 5,
needleColor: Color(0xFFDADADA),
knobStyle: KnobStyle(
color: Colors.white,
borderColor: Color(0xFFDADADA),
knobRadius: 0.06,
borderWidth: 0.04
return MaterialApp(
home: Scaffold(
body: Center(
child: SfRadialGauge(
axes: <RadialAxis>[
RadialAxis(
axisLineStyle: AxisLineStyle(thickness: 30),
showTicks: false,
pointers: <GaugePointer>[
NeedlePointer(
value: 60,
enableAnimation: true,
needleStartWidth: 0,
needleEndWidth: 5,
needleColor: Color(0xFFDADADA),
knobStyle: KnobStyle(
color: Colors.white,
borderColor: Color(0xFFDADADA),
knobRadius: 0.06,
borderWidth: 0.04
),
tailStyle: TailStyle(
color: Color(0xFFDADADA),
width: 5,
length: 0.15
)
),
tailStyle: TailStyle(
color: Color(0xFFDADADA),
width: 5,
length: 0.15
RangePointer(
value: 60,
width: 30,
enableAnimation: true,
color: Colors.orange
)
),
RangePointer(
value: 60,
width: 30,
enableAnimation: true,
color: Colors.orange
)
]
)
],
)
]
)
],
),
),
),
);
}
}

{% endhighlight %}
{% endtabs %}

![pointer animation](images/animation/animation.gif)
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