Flutter Scale

A Flutter package allows you to easily integrate Scale widget.

Preview

The example app running in Android The example app running in Android The example app running in Android

Installing

  1. Add dependency to pubspec.yaml

    Get the latest version in the 'Installing' tab on pub.dartlang.org

dependencies:
    flutter_scale: 0.1.2
  1. Import the package
import 'package:flutter_scale/flutter_scale.dart';
  1. Adding Vertical Scale
class _Example1State extends State<Example1> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: VerticalScale(
            maxValue: 13,
            scaleController: ScrollController(),
    ));
  }
}
  1. Adding Horizontal Scale
class _Example1State extends State<Example1> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: HorizontalScale(
            maxValue: 25,
            scaleController: ScrollController(),
    ));
  }
}

With optional parameters

class _Example1State extends State<Example1> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: VerticalScale(
      maxValue: 7,
      scaleController: ScrollController(initialScrollOffset: 200),
      scaleColor: Colors.redAccent,
      lineColor: Colors.amber,
      linesBetweenTwoPoints: 5,
      middleLineAt: 3,
      pointer: RotatedBox(
          quarterTurns: 1, child: Image.asset('assets/images/tooltip.png')),
      textStyle: TextStyle(
        fontSize: 35,
        color: Colors.amber,
        fontWeight: FontWeight.bold,
        fontStyle: FontStyle.italic,
      ),
    ));
  }
}

How to use

Check out the example app in the example directory or the 'Example' tab on pub.dartlang.org for a more complete example.

Libraries

flutter_scale
measurement_line

Dart

VM

dart:ffi
Foreign Function Interface for interoperability with the C programming language. [...]

Web

dart:html
HTML elements and other resources for web-based applications that need to interact with the browser and the DOM (Document Object Model). [...]
dart:js
Low-level support for interoperating with JavaScript. [...]
dart:js_util
Utility methods to efficiently manipulate typed JSInterop objects in cases where the name to call is not known at runtime. You should only use these methods when the same effect cannot be achieved with @JS annotations. These methods would be extension methods on JSObject if Dart supported extension methods.