Support Library 28.0.0 Alpha 1に触れてみる

Support Library 28.0.0 Alpha 1に触れてみる

文字起こし
https://github.com/operando/Notes/tree/master/Mercari_Meetup_for_Mobile_App_Engineer_in_Fukuoka

Mercari Meetup for Mobile App Engineer in Fukuoka
https://mercari.connpass.com/event/83957/

Transcript

1. Support Library

   28.0.0 Alpha 1ʹ

   ৮ΕͯΈΔ
   Mercari Meetup for 

   Mobile App Engineer

   in Fukuoka
   

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2. About Me
   • AndroidΤϯδχΞ
   • ϝϧΧϦ → ι΢κ΢ → ϝϧΧϦ
   • ϓϩήʔϚʔ໨ࢦͯ͠·͢ʂ
   • Discord : operandoOS
   • Steam : operandoOS
   

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3. Support Library

   28.0.0 Alpha 1
   

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4. Support Library 28.0.0 Alpha 1
   https://developer.android.com/
   topic/libraries/support-library/
   revisions.html#28-0-0-alpha1
   

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5. • όά΋͋Δ͠ɺAPI surfaceมΘΔ͔΋ͳͷͰʂ
   • Կ͕ى͖ͯ΋ͼͬ͘Γ͠ͳ͍ʂ͘Β͍ͷؾ࣋ͪͰ
   ࢼ͆͢
   Support Library 28.0.0 Alpha 1
   

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6. Important changes
   

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7. androidx: Hello World!
   • package name͕androidxʹͳΔ
   • Android KTX͔Β࠾༻͞Ε࢝Ίͨ΍ͭ
   • ৽͍͠Support Library͔ΒͳΔ
   • heifwriter,recyclerview-selection
   

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8. Split libraries
   “split parts of support-core-ui,
   support-core-utils, and 

   support-compat into smaller libraries”
   

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9. Split libraries
   • ґଘؔ܎Λ੾Γ཭ͨ͢Ίʹখ͍͞Libraryʹ

   ෼ׂ͢Δ
   • Google's Maven RepositoryΛݟΔͱ

   Ͳͷ୯ҐͰLibrary͕͋Δͷ͔Θ͔Δ
   • https://dl.google.com/dl/android/maven2/
   index.html
   

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10. New APIs
    

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11. recyclerview-selection
    • ৄ͘͠ॻ͍ͯ͘Εͨkgmyshin͞Μͷݟͯʂ
    • Support Library 28.0.0 alpha৽APIͷ
    recyclerview-selectionΛ࢖ͬͯΈͨ
    • https://inside.dmm.com/entry/
    2018/03/22/recyclerview-selection
    

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12. HeifWriter
    • High Efficiency Image File Format
    • iOS͸iOS11͔Β࠾༻ͯ͠Δ
    • Android PͰ΋ެࣜαϙʔτ
    • HeifWriter͸HEIF-formatͰॻ͖ࠐΈ͕Ͱ͖Δ
    • Read΋Support LibraryͰग़Δ͜ͱظ଴͍ͨ͠ʂ
    

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13. HeifWriter
    https://developer.android.com/reference/
    androidx/heifwriter/HeifWriter.html
    

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14. New application theme
    Theme.MaterialComponents
    

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15. Theme.MaterialComponents
    parent="Base.Theme.MaterialComponents"/>
    parent="Base.V14.Theme.MaterialComponents"/>
    parent="Platform.MaterialComponents"><br/>...<br/>
    

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16. Theme.MaterialComponents
    • Theme.MaterialComponentsͷఆٛ
    • https://github.com/material-components/material-
    components-android/blob/master/lib/java/android/
    support/design/theme/res/values/themes.xml#L28
    • Base.V14.Theme.MaterialComponentsͷఆٛ
    • https://github.com/material-components/material-
    components-android/blob/master/lib/java/android/
    support/design/theme/res/values/themes_base.xml#L33
    

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17. New components
    • BottomAppBar
    • Chip
    • ChipGroup
    • MaterialButton
    • MaterialCardView
    

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18. New components
    • ίʔυ͸Material Components for AndroidΛ
    ࢀর͢Δͱྑͦ͞͏
    • https://github.com/material-components/
    material-components-android
    

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19. MaterialButton
    • rippleColorͱ͔strokeͷઃఆ͕Ͱ͖Δ
    • selectorͱ͔ॻ͔ͳͯ͘ྑ͘ͳΓͦ͏ͳͷͰ
    ૉ੖Β͍͠ʂ
    • 4ܥͰrippleColorͰഎܠ৭͕ృΓͭͿ͞ΕΔ
    bugͬΆ͍ͷ͕͋Δ
    

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20. MaterialButton
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:minHeight="48dp"
    android:text="Hello World!"
    app:cornerRadius="4dp"
    app:icon="@drawable/ic_android_black_24dp"
    app:rippleColor="#00ff00" />
    

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21. MaterialButton
    

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22. MaterialButton
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:minHeight="48dp"
    android:text="Hello World!"
    app:cornerRadius="4dp"
    app:icon="@drawable/ic_android_black_24dp"
    app:rippleColor="#00ff00"
    app:strokeColor="@color/colorPrimary"
    app:strokeWidth="4dp" />
    

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23. MaterialButton
    

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24. New components
    • ঺հ͠ͳ͔ͬͨComponentͷ࢖͍ํ͸ҎԼΛಡΉ
    ͱॻ͍ͯ͋Γ·͢ʂ
    • Exploring the v28 Android Design Support
    Library Additions
    • https://medium.com/google-developer-
    experts/exploring-the-v28-android-design-
    support-library-2c96c6031ae8
    

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25. Slices
    

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26. What are Slices?
    “Slices provides a framework
    for apps to embed templated
    content from other apps.”
    

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27. What are Slices?
    • ͱ͋ΔղઆϒϩάͰGoogle Assistantͱ͔ʹࣗ਎ͷ
    ΞϓϦͷ৘ใΛPluginతʹఏڙͰ͖ΔΑ͏ʹ͢ΔAPI

    ͱ͍͏Ծઆ͕ॻ͔ΕͯΔ
    • PluginΛఏڙ͢ΔͷʹՁ஋͕͋ΔΞϓϦ͸ࢼͯ͠

    ΈΔͱ͍͍͔΋
    • PluginΛ׆༻ͯ͠໘ന͍ΞϓϦΛ࡞ΕΔ͔΋
    

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28. What are Slices?
    • ·ͩṖʹแ·ΕͯΔAPI
    • ͍ͨͩ͢͝ڵຯਂ͍
    • Android P Preview 2ʹظ଴ʂ
    • ·ͩPreview 1ͳͷͰAPI͸όΪʔ
    

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29. What are Slices?
    • ଞਓͷΞϓϦ͕ఏڙ͢ΔSliceΛࣗ਎ͷΞϓϦʹ

    දࣔ͢Δ͜ͱͰɺଞਓͷΞϓϦͷUI΍ػೳ͕

    ࣗ਎ͷΞϓϦͰ࢖͑Δײ
    • ͦͷٯ΋Ͱ͖Δ = ࣗ਎ͷΞϓϦ͕SliceΛఏڙ͢Δ
    • UI͸͋Δఔ౓ܾ·ͬͨܗ
    • Slice Provide AppͱSlice Host App
    

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30. Slice Provide App
    • SliceProviderΛ࣮૷͢Δ
    • SliceProvider͸ContentProviderΛܧঝͨ͠΋ͷ
    • Format BuilderΈ͍ͨͳͷͰUI(Slice)Λ࡞Δ
    • SliceProvider͕Uri or IntentʹԠͨ͡SliceΛฦ͢
    

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31. Slice Host App
    • SliceManagerʹUri or IntentΛ౉͠
    SliceProviderͱbind͢Δ
    • SliceProvider͔Βฦ͖ͬͯͨSliceΛ
    SliceViewʹηοτ͢Δ
    

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32. Slicesͷେ·ͳ͔ྲྀΕ
    

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33. Slices & Permission
    • SliceProvider͔ΒSliceΛऔಘ͢Δʹ͸Permission͕ඞཁ
    • Permissionʹؔ͢ΔAPIपΓ͕·ͩṖ͍͠ɺόΪʔ
    • ͜Μͳײͬ͡Ά͍ʂͷཧղͰOKɻมΘΔ͔΋͠Εͳ͍͠
    

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34. Slices & Permission
    • Permission͑ͪ͞ΌΜͱϢʔβ͕ঝೝ͢Ε͹

    ͲͷΞϓϦͰ΋SliceProviderΛఏڙͯ͠Δ

    ΞϓϦ͔ΒSliceΛऔಘͰ͖Δ
    • Slice Host App͕୯ҰΞϓϦ or શͯͷΞϓϦͷ
    SliceΛऔಘͰ͖ΔΑ͏ʹ͢Δ͔Ͳ͏͔
    

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35. Slices & Permission
    

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36. Slices Support Library
    • com.android.support:slices-builders
    • Slice Provide AppͷͨΊͷAPI
    • com.android.support:slices-view
    • Slice Host AppͷͨΊͷAPI
    • com.android.support:slices-core
    • Slices APIͷίΞ
    

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37. Slice Provide Appͷ࣮૷
    

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38. SliceProviderͷ࣮૷
    • onBindSliceͰUriʹԠͨ͡SliceΛฦ͢
    • Slice͸BuilderΛ࢖ͬͯ࡞Δ
    • ListBuilder,GridBuilderͳͲ͕͋Δ
    • ͋Δఔ౓ܾ·ͬͨUIͷϑΥʔϚοτͰදݱ͢Δ
    

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39. SliceProviderͷ࣮૷
    class SampleSliceProvider : SliceProvider() {
    private var counter = 0
    override fun onCreateSliceProvider(): Boolean {
    return true
    }
    override fun onBindSlice(sliceUri: Uri): Slice {
    return when (sliceUri.path) {
    "/time" -> createTimeSlice(sliceUri)
    else -> createTimeSlice(sliceUri)
    }
    }
    }
    

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40. SliceProviderͷ࣮૷
    private fun createTimeSlice(uri: Uri): Slice = ListBuilder(context, uri)
    .apply {
    counter++
    setHeader(
    ListBuilder.HeaderBuilder(this)
    .setTitle("What's the time now?")
    )
    addRow(
    ListBuilder.RowBuilder(this)
    .setTitle("It is ${SimpleDateFormat(“HH:mm")
    .format(Calendar.getInstance().time)}”)
    )
    addRow(
    ListBuilder.RowBuilder(this)
    .setTitle("Slice has called $counter times")
    )
    }
    .build()
    

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41. SliceProviderΛAndroidManifestʹఆٛ
    
    
    ... >
    android:name=".SampleSliceProvider"
    android:authorities="com.os.operando.slice_provider"
    android:exported="true" />
    
    
    

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42. SliceProviderΛAndroidManifestʹఆٛ
    • exported="true"ͯ͠ͳ͍ͱɺSliceManagerͰ
    bind͢Δ࣌ʹམͪΔͷͰ͚ͭͯΔ
    • ެ։ͨ͠ΒPermissionͱ͔ؔ܎ͳ͍ͷͰ͸ʁ

    ͬͯؾ࣋ͪ
    • υΩϡϝϯυ͕·ͩᐆດͳͷͰbug͔΋ʁ
    

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43. Slice Provide Appͷ࣮૷
    

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44. ϨΠΞ΢τʹSliceViewΛ௥Ճ
    • SliceΛදࣔ͢ΔView
    • https://developer.android.com/reference/
    androidx/slice/widget/SliceView.html
    

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45. ϨΠΞ΢τʹSliceViewΛ௥Ճ
    android:id="@+id/sliceView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />
    

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46. PermissionͷνΣοΫ + ೝՄ
    • ͜͜͸௕͍ͷͱɺbugͬΆ͍ͷ͕͋ΔͨΊׂѪ
    • ࠓޙAPIมΘΓͦ͏ͳงғؾ
    

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47. PermissionͷνΣοΫ + ೝՄ
    • Slice Provide AppͷSliceProviderʹΞΫηεͰ͖Δ
    Α͏ʹ͢ΔͨΊʹɺ಺෦࣮૷Ͱ͸
    ContextWrapper#grantUriPermissionϝιουΛ
    ࢖ͬͯɺผύοέʔδͰ΋ΞΫηεͰ͖ΔΑ͏ʹ

    ͯ͠ΔͬΆ͍ʁ
    

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48. Sliceͷදࣔ
    • SliceManagerΛ࢖༻ͯ͠UriΛ࢖ͬͯ
    SliceProviderΛbind͢Δ
    • SliceProvider͔Βฦ͖ͬͯͨSliceΛ
    SliceViewʹηοτ͢Δ
    

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49. Sliceͷදࣔ
    val slice = sliceManager.bindSlice(sliceUri)
    sliceView.setSlice(slice)
    

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50. SliceϢʔεέʔε
    • ঎඼ݕࡧ݁ՌΛSliceͰฦ͢
    • ϝϧΧϦ
    • Slice Provide Appଆ
    • ػೳΛPlguinͱͯ͠ఏڙ͢ΔΠϝʔδ
    

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51. SliceϢʔεέʔε
    • ൃݴͳͲΛτϦΨʔʹSliceΛදࣔ͢Δ
    • LINEɺGoogle Assistant
    • ϝοηʔδϯάɺΞγετ
    • Slice Host Appଆ
    

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52. Android P Slice
    • Android PͰ͸SliceManagerService͕ଘࡏ͢Δ
    • ͭ·ΓɺSystem ServiceͷҰछ
    

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53. SliceͷṖ
    • SliceProviderΛఏڙ͢ΔΞϓϦͷ೺Ѳ
    • SliceProvider͕൓Ԡ͢ΔUriͷFormatͷ೺Ѳ
    • ͲΜͳΞϓϦ͕ͲΜͳSliceΛఏڙͯ͠Δͷ͔

    ஌Δํ๏͕ͳ͍ؾ͕͢Δ
    

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54. SliceΛ͞Βʹਂ͘஌Δ
    • Android P Slices: the missing
    documentation — part 1 and 2
    • https://blog.novoda.com/android-p-slices-
    missing-documentation-part-1/
    • https://blog.novoda.com/android-p-slices-
    missing-documentation-part-2/
    

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55. SliceΛ͞Βʹਂ͘஌Δ
    • Sample App
    • https://github.com/novoda/spikes/tree/
    master/sliceanddice
    • https://github.com/operando/
    Android_Support_Library_Sample
    

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56. Support Library 28.0.0 Alpha 1·ͱΊ
    • ண࣮ʹ͍͍API͸૿͑ͯΔ
    • Android P Preview 2͕ग़ͨΒ·ͨΨϥοͱ
    มΘΓͦ͏
    • ਂ͘ௐ΂Δͱ৽͍͠Կ͔͕ݟ͑ͯ͘Δʂ͔΋...
    

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57. Thanks!!
    

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