Flutter 1.7 Features (Overview+α)

by Kenichi Kambara

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2019.07.24 Kenichi Kambara (@korodroid) Flutter 1.7 Features  (Overview+α) potatotips #63

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About me • Mobile App Development • Technical Speeches • Droidcon UK/FR/NL/ES/SH • Devoxx UA • GDG DevFest Pisa • Developers Summit • Android Bazaar and Conference • StackOverﬂow DevDays • Cloud Days • Google I/O Extended Tokyo 2018 •Technical Writings •[Ofﬁcial] NTT TechnoCross •[Private] iplatform.org Kenichi Kambara (@korodroid)

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•1.7 New Features Overview •+α Introduction

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Ref.)Announcing Flutter 1.7 (2019.07.10)

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Flutter 1.7 Main Topics •AndroidX support for new apps •Support for Android app bundles •Creating Sample App (Available on previous ver.)

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AndroidX support for new apps AndroidX: a new open source support library from Jetpack

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AndroidX support for new apps [How to Create a Flutter Project includes AndroidX (Default: Disable)] $ ﬂutter create --androidx myapp

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How to migrate a Flutter app to AndroidX [Use Android Studio to migrate your app] 1. Import your Flutter app into Android Studio 2. On Android Studio, Refactor > Migrate to AndroidX Recommended [Manually migrate your app] ref. https://ﬂutter.dev/docs/development/packages-and-plugins/androidx-compatibility Not Recommended

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How to avoid AndroidX?? https://ﬂutter.dev/docs/development/packages-and-plugins/androidx-compatibility

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Why must we use Android app bundle? https://android-developers.googleblog.com/2019/01/get-your-apps-ready-for-64-bit.html

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[- Flutter 1.5] Supporting 64-bit app [Creating both 32-bit and 64-bit apps (2 .apk)] $ ﬂutter build apk --release —target-platform=android-arm $ ﬂutter build apk --release —target-platform=android-arm64 [Uploading 2 .apk] 2 apks -> Google Play Store

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[Flutter 1.7 - ] Supporting 64-bit app [Creating Android app bundle (1 .aab)] $ ﬂutter build appbundle [Uploading 1 .aab] 1 aab -> Google Play Store

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Creating Sample App [How to Create Sample App] $ ﬂutter create --sample=material.AppBar.1 mysample

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How to create Sample App ﬂutter.dev

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How to create Sample App

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Let’s try (Live Demo)

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$ ﬂutter create --sample=material.AppBar.1 mysample $ cd mysample $ ﬂutter run

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•Announcing Flutter 1.7  https://medium.com/ﬂutter/announcing-ﬂutter-1-7-9cab4f34eacf Reference

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Please let me know if you have any requests   such as technical speeches, technical writings and so on. Facebook:http://fb.com/kanbara.kenichi Twitter:@korodroid LinkedIn:http://www.linkedin.com/in/korodroid Thank you so much