Joshua Rowe

Joshua Rowe

1591489560

An App Template For GDG DevFest with Flutter

GDG DEVFEST APP

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Overview

DevFest Mobile application is for all the GDG Devfests around the world. You can see the agenda in the app as well as the speakers and other updates regarding the devfest.

Technology Stack

  • Flutter
  • Flutter Bloc
  • Firebase (Upcoming)

Getting Started

  1. Fork repository and clone your fork locally
  2. Install Flutter 1.7.8
  3. Install Android Studio / IntelliJ / VSCode
  4. Preparing Release for Android
  5. Preparing Release for iOS

Building the project

Missing Key.Properties file

If you try to build the project straight away, you’ll get an error complaining that a key.properties file is missing and Exit code 1 from: /GDG-DevFest-App-master/android/gradlew app:properties:. To resolve that,

  1. Open GDG-DevFest-App-master\android\app\build.gradle file and comment following lines-

    //keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
    
    signingConfigs {
    // release {
    // keyAlias keystoreProperties['keyAlias']
    // keyPassword keystoreProperties['keyPassword']
    // storeFile file(keystoreProperties['storeFile'])
    // storePassword keystoreProperties['storePassword']
    // }
    }
    buildTypes {
    // release {
    // signingConfig signingConfigs.release
    // }
    }
    
    
  2. Open GDG-DevFest-App-master\lib\utils\devfest.dart file and customise the texts according to your needs. Eg-

        static const String app_name = “Devfest”;
        static const String app_version = “Version 1.0.4”;
        static const int app_version_code = 1;
    
        //*  Texts
        static const String welcomeText = “Welcome to GDG DevFest”;
        static const String descText =
            ‘’’DevFests are community-led, developer events hosted by GDG chapters around the globe focused on community building & learning about Google’s technologies. Each DevFest is inspired by and uniquely tailored to the needs of the developer community and region that hosts it.’’’;
    
        //* ActionTexts
        static const String agenda_text = “Agenda”;
        static const String speakers_text = “Speakers”;
        static const String team_text = “Team”;
        static const String sponsor_text = “Sponsors”;
        static const String faq_text = “FAQ”;
        static const String map_text = “Locate Us”;
    
    
  3. Open GDG-DevFest-App-master\lib\home\session.dart file and customise the sessions according to your needs. Eg-

        List<Session> sessions = [
            Session(
                sessionId: “1”,
                sessionStartTime: “9:00 AM”,
                sessionTotalTime: “30 Mins”,
                sessionTitle: “DevByte: From Zero to ML on Google Cloud Platform”,
                speakerImage:
                    “https://avatars1.githubusercontent.com/u/12619420?s=400&u=eac38b075e4e4463edfb0f0a8972825cf7803d4c&v=4”,
                speakerName: “Max Saltonstall”,
                speakerDesc: “Cloud Developer Advocate, Google DevByte speaker”,
                track: "cloud"
            ),
        ]
    
    
  4. Open GDG-DevFest-App-master\lib\home\speaker.dart file and customise the speakers according to your needs. Eg-

        List<Speaker> speakers = [
            Speaker(
                speakerImage:
                    “https://avatars1.githubusercontent.com/u/12619420?s=400&u=eac38b075e4e4463edfb0f0a8972825cf7803d4c&v=4”,
                speakerName: “Pawan Kumar”,
                speakerDesc: “Google Developer Expert, Flutter”,
                speakerSession: “Talk: Getting Started With Flutter For Web”,
                fbUrl: “https://facebook.com/imthepk”,
                githubUrl: “https://github.com/iampawan”,
                linkedinUrl: “https://linkedin.com/in/imthepk”,
                twitterUrl: “https://twitter.com/imthepk”,
            ),
        ]
    
    
  5. Open GDG-DevFest-App-master\lib\home\team.dart file and customise the teams according to your needs. Eg-

        List<Team> teams = [
            Team(
                name: “Sundar Pichai”,
                desc: “Organizer”,
                contribution: “Google CEO”,
                image:
                    “https://pbs.twimg.com/profile_images/864282616597405701/M-FEJMZ0_400x400.jpg”,
            ),
        ]
    
    
  6. Open GDG-DevFest-App-master\lib\map\map_page.dart file and customise the lat long according to your needs. Eg-

       static final LatLng myLocation = LatLng(37.42796133580664,       -122.085749655962);
    
    
  7. Open GDG-DevFest-App-master\lib\sponsors\sponsor_page.dart file and customise the sponsors data according to your needs. Eg-

       SponsorImage(
            imgUrl: “https://devfest.gdgkolkata.org/assets/img/logos/gd.png”,
        )
    
    

Contributing

Awesome! Contributions of all kinds are greatly appreciated. To help smoothen the process we have a few non-exhaustive guidelines to follow which should get you going in no time.

Using GitHub Issues

  • Feel free to use GitHub issues for questions, bug reports, and feature requests
  • Use the search feature to check for an existing issue
  • Include as much information as possible and provide any relevant resources (Eg. screenshots)
  • For bug reports ensure you have a reproducible test case
    • A pull request with a breaking test would be super preferable here but isn’t required

Submitting a Pull Request

  • Squash commits
  • Lint your code with eslint (config provided)
  • Include relevant test updates/additions

Contributors

Maintainer: Pawan Kumar

Download Details:

Author: iampawan

GitHub: https://github.com/iampawan/GDG-DevFest-App

#flutter #dart #mobile-apps #programming

What is GEEK

Buddha Community

An App Template For GDG DevFest with Flutter

Google's Flutter 1.20 stable announced with new features - Navoki

Flutter Google cross-platform UI framework has released a new version 1.20 stable.

Flutter is Google’s UI framework to make apps for Android, iOS, Web, Windows, Mac, Linux, and Fuchsia OS. Since the last 2 years, the flutter Framework has already achieved popularity among mobile developers to develop Android and iOS apps. In the last few releases, Flutter also added the support of making web applications and desktop applications.

Last month they introduced the support of the Linux desktop app that can be distributed through Canonical Snap Store(Snapcraft), this enables the developers to publish there Linux desktop app for their users and publish on Snap Store.  If you want to learn how to Publish Flutter Desktop app in Snap Store that here is the tutorial.

Flutter 1.20 Framework is built on Google’s made Dart programming language that is a cross-platform language providing native performance, new UI widgets, and other more features for the developer usage.

Here are the few key points of this release:

Performance improvements for Flutter and Dart

In this release, they have got multiple performance improvements in the Dart language itself. A new improvement is to reduce the app size in the release versions of the app. Another performance improvement is to reduce junk in the display of app animation by using the warm-up phase.

sksl_warm-up

If your app is junk information during the first run then the Skia Shading Language shader provides for pre-compilation as part of your app’s build. This can speed it up by more than 2x.

Added a better support of mouse cursors for web and desktop flutter app,. Now many widgets will show cursor on top of them or you can specify the type of supported cursor you want.

Autofill for mobile text fields

Autofill was already supported in native applications now its been added to the Flutter SDK. Now prefilled information stored by your OS can be used for autofill in the application. This feature will be available soon on the flutter web.

flutter_autofill

A new widget for interaction

InteractiveViewer is a new widget design for common interactions in your app like pan, zoom drag and drop for resizing the widget. Informations on this you can check more on this API documentation where you can try this widget on the DartPad. In this release, drag-drop has more features added like you can know precisely where the drop happened and get the position.

Updated Material Slider, RangeSlider, TimePicker, and DatePicker

In this new release, there are many pre-existing widgets that were updated to match the latest material guidelines, these updates include better interaction with Slider and RangeSliderDatePicker with support for date range and time picker with the new style.

flutter_DatePicker

New pubspec.yaml format

Other than these widget updates there is some update within the project also like in pubspec.yaml file format. If you are a flutter plugin publisher then your old pubspec.yaml  is no longer supported to publish a plugin as the older format does not specify for which platform plugin you are making. All existing plugin will continue to work with flutter apps but you should make a plugin update as soon as possible.

Preview of embedded Dart DevTools in Visual Studio Code

Visual Studio code flutter extension got an update in this release. You get a preview of new features where you can analyze that Dev tools in your coding workspace. Enable this feature in your vs code by _dart.previewEmbeddedDevTools_setting. Dart DevTools menu you can choose your favorite page embed on your code workspace.

Network tracking

The updated the Dev tools comes with the network page that enables network profiling. You can track the timings and other information like status and content type of your** network calls** within your app. You can also monitor gRPC traffic.

Generate type-safe platform channels for platform interop

Pigeon is a command-line tool that will generate types of safe platform channels without adding additional dependencies. With this instead of manually matching method strings on platform channel and serializing arguments, you can invoke native class and pass nonprimitive data objects by directly calling the Dartmethod.

There is still a long list of updates in the new version of Flutter 1.2 that we cannot cover in this blog. You can get more details you can visit the official site to know more. Also, you can subscribe to the Navoki newsletter to get updates on these features and upcoming new updates and lessons. In upcoming new versions, we might see more new features and improvements.

You can get more free Flutter tutorials you can follow these courses:

#dart #developers #flutter #app developed #dart devtools in visual studio code #firebase local emulator suite in flutter #flutter autofill #flutter date picker #flutter desktop linux app build and publish on snapcraft store #flutter pigeon #flutter range slider #flutter slider #flutter time picker #flutter tutorial #flutter widget #google flutter #linux #navoki #pubspec format #setup flutter desktop on windows

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