Wear Recap from I/O 2021 + α

by Kenichi Kambara

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Wear Recap from I/O 2021 + ƹ 2021.06.19 Kenichi Kambara (@korodroid) I/O Extended Japan 2021

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2 About me Kenichi Kambara (@korodroid) •Mobile App Development •Speeches (e.g. 9 International confs.) •Writings (e.g. 5 Dev Books) •[Of fi cial] Evangelist at NTT TechnoCross •[Private] iplatform.org

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Wear OS History •First Release at I/O 2014 2014 2018 2018 2021 Android Wear Wear OS •Rebranding •Big Update at I/O 2021

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Wear OS Introduction Wear apps Watch faces Complications Based on Android & optimized for the wrist Source: https://developer.android.com/training/wearables/

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Agenda •Wear Topics from I/O 2021 •Supporting Ecosystem •Topics for Developers

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Wear Topics from I/O 2021 Source: Google I/O 2021 Keynote / Developer Keynote / Wear OS Session

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A uni fi ed platform (Wear OS + Tizen)

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New consumer experience

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New consumer experience

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Major Improvements

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Google Play Store Updates •Easy to fi nd Wear Apps •[New] Wear Category •Install Directly from mobile

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όοΫΞοϓ Supporting ecosystem

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for Designers

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for Developers

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for Developers

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for Developers

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19 Topics for Developers

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20 Get Started: Wear OS development

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21 Tiles

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22 Tiles (TileProviderService)

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23 Tiles (TileProviderService)

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24 Tiles Single TimelineEntry

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25 Tiles (TileProviderService)

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26 Tiles (TileProviderService)

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27 Tiles (TileProviderService)

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28 Tiles (AndroidManifest.xml)

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29 Tiles (Preview Activity for debug) place it on “src/debug” instead of “src/main”

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30 Tiles (app/build.gradle)

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31 Intermediate Topics (Tiles) •Can de fi ne interactive Events such as Click •Can set a validity period and a refresh interval   (See also: setEndMills(), setFreshnessIntervalMillis()) •Supports various elements   (e.g. Text/Image/Row/Column/Arc/Spannable and more)

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32 Tips (Developing Tiles) •Use the Preview Activity for debug •Use onResourcesRequest() for accessing app’s resources

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33 Ongoing Activity Activity indicator Global launcher

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34 Ongoing Activity Activity indicator Global launcher

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35 Ongoing Activity

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36 Ongoing Activity (app/build.gradle)

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37 Next Step (Wear OS)

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38 Next Step (Wear OS)

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Reference •Google I/O Keynote / Developer Keynote   https://events.google.com/io/   •What’s New with Wear   https://bit.ly/2SBoRPU •Create your fi rst Tile in Wear   https://bit.ly/3vn3XkY •Codelabs (Wear OS)   https://codelabs.developers.google.com/?cat=wearos

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