cupertino_back_gesture 0.0.2

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cupertino_back_gesture #

pub package

A Flutter package to set custom width of iOS back swipe gesture area.

Usage #

To use this package, add cupertino_back_gesture as a dependency in your pubspec.yaml file.

Example #

To change width of area where the user can start back swipe for the whole app

  • Wrap your MaterialApp with BackGestureWidthTheme with desired backGestureWidth
  • set iOS builder of pageTransitionsTheme to CupertinoPageTransitionsBuilderCustomBackGestureWidth
import 'package:cupertino_back_gesture/cupertino_back_gesture.dart';

  backGestureWidth: BackGestureWidth.fraction(1 / 2),
  child: MaterialApp(
    theme: ThemeData(
      pageTransitionsTheme: PageTransitionsTheme(
        builders: {
          TargetPlatform.iOS: CupertinoPageTransitionsBuilderCustomBackGestureWidth(),
    home: MainPage(),

Possible variants for backGestureWidth are

  • BackGestureWidth.fixed(w) where w is width in logical pixels
  • BackGestureWidth.fraction(f) where f is fraction of screen width from 0.0 to 1.0

Screenshots #

Areas where back swipe gesture can be started are shaded with hatching

Default FlutterBackGestureWidth.fraction(1 / 2)

Example app #

Complete example can be found in example folder


Apply changes from Flutter v1.12.13


Initial release.


Cupertino Back Gesture example app #

Demonstrates how to use the Cupertino Back Gesture package.

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  cupertino_back_gesture: ^0.0.2

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:cupertino_back_gesture/cupertino_back_gesture.dart';
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Learn more about scoring.

We analyzed this package on Jan 27, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.7.0
  • pana: 0.13.4
  • Flutter: 1.12.13+hotfix.5

Health suggestions

Fix lib/src/cupertino_page_route.dart. (-1 points)

Analysis of lib/src/cupertino_page_route.dart reported 2 hints:

line 955 col 63: 'CupertinoDialog' is deprecated and shouldn't be used. Use CupertinoAlertDialog for alert dialogs. Use CupertinoPopupSurface for custom popups. This feature was deprecated after v0.2.3..

line 980 col 9: 'CupertinoDialog' is deprecated and shouldn't be used. Use CupertinoAlertDialog for alert dialogs. Use CupertinoPopupSurface for custom popups. This feature was deprecated after v0.2.3..

Fix lib/src/back_gesture_width_theme.dart. (-0.50 points)

Analysis of lib/src/back_gesture_width_theme.dart reported 1 hint:

line 29 col 15: 'inheritFromWidgetOfExactType' is deprecated and shouldn't be used. Use dependOnInheritedWidgetOfExactType instead. This feature was deprecated after v1.12.1..

Maintenance issues and suggestions

Homepage URL isn't helpful. (-10 points)

Update the homepage field from pubspec.yaml: link to a website about the package or use the source repository URL.

Package is pre-v0.1 release. (-10 points)

While nothing is inherently wrong with versions of 0.0.*, it might mean that the author is still experimenting with the general direction of the API.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.1.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.11 1.14.12
meta 1.1.8
sky_engine 0.0.99
typed_data 1.1.6
vector_math 2.0.8
Dev dependencies