How to get build and version number of Flutter app

Question

I am currently developing an application which is currently in beta mode. Due to this, I would like to show them what version they are on. For example, \"v1.0b10 - iOS\". So

Answer 1

You can use package_info.

The versions are extracted from:

Android:

build.gradle, versionCode and versionName

iOS:

Info.plist, CFBundleVersion

Usage

Add the dependency

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

dependencies:
  package_info: ^0.4.0+16

2. Import the file into your dart file:

import 'package:package_info/package_info.dart';

3. if your method is marked as async:

PackageInfo packageInfo = await PackageInfo.fromPlatform();

String appName = packageInfo.appName;
String packageName = packageInfo.packageName;
String version = packageInfo.version;
String buildNumber = packageInfo.buildNumber;

If you don't want to use await/async:

PackageInfo.fromPlatform().then((PackageInfo packageInfo) {
  String appName = packageInfo.appName;
  String packageName = packageInfo.packageName;
  String version = packageInfo.version;
  String buildNumber = packageInfo.buildNumber;
});

Answer 2

You can use the get_version to query information about the application Version Name, Version Code, Platform and OS Version, and App ID on iOS and Android

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

dependencies:
  get_version: ^0.2.2

Now in your Dart code, you can use:

import 'package:get_version/get_version.dart';

Go to build.gradle and update:

defaultConfig {
  versionCode 1
  versionName "1.0"
  minSdkVersion 16
  testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}

How to Use

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  String _projectVersion = '';
  String _projectCode = '';
  String _projectAppID = '';
  String _projectName = '';

  @override
  initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      platformVersion = await GetVersion.platformVersion;
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    String projectVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      projectVersion = await GetVersion.projectVersion;
    } on PlatformException {
      projectVersion = 'Failed to get project version.';
    }

    String projectCode;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      projectCode = await GetVersion.projectCode;
    } on PlatformException {
      projectCode = 'Failed to get build number.';
    }

    String projectAppID;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      projectAppID = await GetVersion.appID;
    } on PlatformException {
      projectAppID = 'Failed to get app ID.';
    }

    String projectName;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      projectName = await GetVersion.appName;
    } on PlatformException {
      projectName = 'Failed to get app name.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
      _projectVersion = projectVersion;
      _projectCode = projectCode;
      _projectAppID = projectAppID;
      _projectName = projectName;
    });
  }
  
}

Answer 3

There is a plugin that will help you get the version name and number.

Add the dependency

In pubspec.yaml add the package_info package.

dependencies:
  package_info: ^0.4.0+13

Update the version number to the current one.

Import the package

In the file that you need it, add the following import.

import 'package:package_info/package_info.dart';

Get the version name and code

In your code you can get the app version name and code like this:

PackageInfo packageInfo = await PackageInfo.fromPlatform();
String versionName = packageInfo.version;
String versionCode = packageInfo.buildNumber;

See also

• How to set build and version number of Flutter app
• How to get build and version number of Flutter Web app

Answer 4

You can try new_version plugin.

New Version Plugin

void versionCheckToLogin() async {
    final NewVersion newVersion = NewVersion(context: context);
    VersionStatus versionStatus = await newVersion.getVersionStatus();
    if (versionStatus != null && versionStatus.canUpdate) {
      await ConfirmDialog(
          context: context,
          title: 'Update Available',
          body: Text('A new version, ${versionStatus.storeVersion}, is available.'),
          acceptButton: 'Update Now',
          cancelButton: 'Update Later'
      ).then((ConfirmAction res) async {
        if (res == ConfirmAction.CONFIRM && await canLaunch(versionStatus.appStoreLink)) {
          await launch(versionStatus.appStoreLink, forceWebView: true);
        }
      });
    }
  }

Custom Alert Dialog Box

enum ConfirmAction{ CONFIRM, CANCEL }
Future<ConfirmAction> ConfirmDialog({
  BuildContext context,
  String title,
  Widget body,
  String acceptButton,
  String cancelButton
})
=> showDialog(
    context: context,
    barrierDismissible: false,
    builder: (BuildContext context) => AlertDialog(
      title: Wrap(
        crossAxisAlignment: WrapCrossAlignment.center,
        spacing: 4,
        children: <Widget>[
          Text(title)
        ],
      ),
      content: Wrap(
        runSpacing: 10,
        children: <Widget>[
          body,
        ],
      ),
      actions: <Widget>[
        FlatButton(
            padding: EdgeInsets.all(6),
            child: Text(acceptButton ?? 'Confirm'),
            onPressed: (){
              Navigator.of(context, rootNavigator: true).pop(ConfirmAction.CONFIRM);
            }
        ),
        FlatButton(
            padding: EdgeInsets.all(6),
            child: Text(cancelButton ?? 'Cancel'),
            onPressed: (){
              Navigator.of(context, rootNavigator: true).pop(ConfirmAction.CANCEL);
            }
        ),
      ],
    )
);