Widget開発再訪

DroidKaigi2018, Room 2 － 2018/02/08 14:00-14:30
https://droidkaigi.jp/2018/timetable?session=16949

Transcript

1. Widget։ൃ࠶๚
   Re-Introduction to Widget Development
   DroidKaigi2018, Room 2 ʵ 2018/02/08 14:00-14:30
   

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2. Sample App
   https://github.com/ymnder/WidgetSample
   2
   

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3. Today's menu
   1. About Widget
   2. Widget Design
   3. Let's make Widget
   4. New API
   3
   

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4. About Widget
   

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5. What Widget
   • Widget͸ϛχΞϓϦͰ͋Δ
   • ϝΠϯͷΞϓϦʹόϯυϧͯ͠ఏڙ͞ΕΔ
   • ΞϓϦͷίΞػೳΛΞϓϦͷ֎Ͱ࢖͑Δ
   • ΞϓϦͷػೳ΍ίϯςϯπʹϗʔϜը໘͔Β৮ΕΔ
   • ϗʔϜը໘ͰίϯςϯπΛ໨ʹ͢Δػձ͕૿͑Δ
   • ΞϓϦΛ։͔ͳͯ͘΋ΞΫηεͰ͖Δʂʂ
   5
   

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6. Why Widget now?
   • ϝΠϯΞϓϦͷ֎Ͱίϯςϯπʹ৮Εͯ΋Β͑Δ
   • ։ൃʹ؆୯ʹऔΓֻ͔ΕΔ
   • AndroidO͔Β৽͍͠API͕௥Ճ͞Εͨ
   6
   

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7. What is New Api
   • Widget Dialog
   • WidgetͷΠϯετʔϧϑϩʔ͕վળ͞Εͨ
   7
   

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8. Widget Picker
   • StoreΠϯετʔϧޙʹࣗ෼Ͱ௥Ճ͢Δඞཁ͕͋Δ
   • ϗʔϜը໘Λϩϯάλοϓ͢Δ
   • ϥϯνϟʔʹΑͬͯ௥Ճํ๏͕ҟͳΔ
   • ଞͷΞϓϦͱಉ͡Ϧετʹஔ͔Εͯ୳͠ʹ͍͘
   8
   

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9. Widget Picker
   9
   

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10. Widget Dialog
    • ΞϓϦ಺͔Β௚઀WidgetΛ͸Γ͚ͭΔ͜ͱ͕Ͱ͖Δ
    • ௥Ճϑϩʔ͕ܶతʹ෼͔Γ΍͘͢ͳͬͨʂʂ
    ref: https://developers-jp.googleblog.com/2017/08/whats-new-for-shortcuts-and-widgets-in.html
    10
    

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11. Widget Dialog
    11
    

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12. Widget Design
    

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13. ͲΜͳWidget͕͋Δ͔
    ͍ΖΜͳWidget
    13
    

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14. Widget Category
    ᶃ Information widgets
    ᶄ Collection widgets
    ᶅ Control widgets
    ᶆ Hybrid widgets
    ΨΠυϥΠϯɿhttps://material.io/guidelines/components/widgets.html#widgets-types-of-widgets
    چΨΠυϥΠϯɿhttps://developer.android.com/design/patterns/widgets.html
    14
    

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15. Widget Category
    ᶃ Information widgets
    ᶄ Collection widgets
    ᶅ Control widgets
    ᶆ Hybrid widgets
    ΨΠυϥΠϯɿhttps://material.io/guidelines/components/widgets.html#widgets-types-of-widgets
    چΨΠυϥΠϯɿhttps://developer.android.com/design/patterns/widgets.html
    15
    

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16. Information widgets
    • ࣌ܭɾఱؾͳͲγϯϓϧͳ৘ใΛग़͢
    • λοϓͨ͠Βৄࡉͳ৘ใΛΞϓϦͰදࣔ͢Δ
    16
    

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17. Widget Category
    ᶃ Information widgets
    ᶄ Collection widgets
    ᶅ Control widgets
    ᶆ Hybrid widgets
    ΨΠυϥΠϯɿhttps://material.io/guidelines/components/widgets.html#widgets-types-of-widgets
    چΨΠυϥΠϯɿhttps://developer.android.com/design/patterns/widgets.html
    17
    

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18. Collection widgets
    • هࣄͳͲͷಉ͡λΠϓͷෳ਺ͷΞΠςϜΛ·ͱΊΔ
    • ίϨΫγϣϯΛҰཡ͢Δ
    • λοϓͯ͠ৄࡉΛ֬ೝ͢Δ
    18
    

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19. Widget Category
    ᶃ Information widgets
    ᶄ Collection widgets
    ᶅ Control widgets
    ᶆ Hybrid widgets
    ΨΠυϥΠϯɿhttps://material.io/guidelines/components/widgets.html#widgets-types-of-widgets
    چΨΠυϥΠϯɿhttps://developer.android.com/design/patterns/widgets.html
    19
    

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20. Control widgets
    • ΞϓϦΛίϯτϩʔϧ͢ΔͨΊͷΞΠςϜΛදࣔ͢Δ
    • ࠶ੜϓϨʔϠʔͷϘλϯ΍ϥϯνϟʔ
    20
    

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21. Widget Category
    ᶃ Information widgets
    ᶄ Collection widgets
    ᶅ Control widgets
    ᶆ Hybrid widgets
    ΨΠυϥΠϯɿhttps://material.io/guidelines/components/widgets.html#widgets-types-of-widgets
    چΨΠυϥΠϯɿhttps://developer.android.com/design/patterns/widgets.html
    21
    

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22. Hybrid widgets
    • Ҏ্ͷཁૉΛ૊Έ߹Θͤͨ΋ͷ
    • ྫɿԻָϓϨʔϠʔͷϥϯνϟʔˍδϟέοτදࣔ
    22
    

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23. Widget Design: News Widget Case
    

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24. Layout
    ᶃ Ұߦܕ
    • ҰߦͰχϡʔεΛίϯύΫτʹදࣔ
    ᶄ Ϧετܕ
    • هࣄΛϦετͰදࣔ͢Δ(GridΑΓList͕ଟ͍)
    ᶅ ΢Υʔϧϖʔύʔܕ
    • ڧௐ͍ͨࣸ͠ਅΛนࢴͷΑ͏ʹදࣔ͢Δ
    24
    

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25. Layout
    ᶃ Ұߦܕ
    • ҰߦͰχϡʔεΛίϯύΫτʹදࣔ
    ᶄ Ϧετܕ
    • هࣄΛϦετͰදࣔ͢Δ(GridΑΓList͕ଟ͍)
    ᶅ ΢Υʔϧϖʔύʔܕ
    • ڧௐ͍ͨࣸ͠ਅΛนࢴͷΑ͏ʹදࣔ͢Δ
    25
    

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26. Layout: Ұߦܕ
    26
    

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27. Layout
    ᶃ Ұߦܕ
    • ҰߦͰχϡʔεΛίϯύΫτʹදࣔ
    ᶄ Ϧετܕ
    • هࣄΛϦετͰදࣔ͢Δ(GridΑΓList͕ଟ͍)
    ᶅ ΢Υʔϧϖʔύʔܕ
    • ڧௐ͍ͨࣸ͠ਅΛนࢴͷΑ͏ʹදࣔ͢Δ
    27
    

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28. Layout: Ϧετܕ
    28
    

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29. Layout
    ᶃ Ұߦܕ
    • ҰߦͰχϡʔεΛίϯύΫτʹදࣔ
    ᶄ Ϧετܕ
    • هࣄΛϦετͰදࣔ͢Δ(GridΑΓList͕ଟ͍)
    ᶅ ΢Υʔϧϖʔύʔܕ
    • ڧௐ͍ͨࣸ͠ਅΛนࢴͷΑ͏ʹදࣔ͢Δ
    29
    

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30. Layout: ΢Υʔϧϖʔύʔܕ
    30
    

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31. Configuration
    ઃఆՄೳͳ߲໨͸ҎԼͷΑ͏ͳ΋ͷ͕ఏڙ͞Ε͍ͯΔ
    • ৭ɿന஍, ࠇ஍…
    • ߋ৽ස౓ɿ30min, 1h, more…
    • χϡʔεͷ಺༰ɿtop, ranking…
    31
    

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32. NewsܥWidgetͷදࣔཁૉͷಛ௃
    ᶃ هࣄຊମ
    ᶄ اۀϩΰ
    ᶅ ߋ৽Ϙλϯ
    ᶆ ઃఆϘλϯ
    ᶇ ࠷ऴߋ৽೔࣌
    32
    

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33. Let's make Widget
    

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34. Widget Classes
    • AppWidgetService
    • WidgetIdͷൃߦ΍ϥϯνϟʔ΁ͷϦΫΤετΛߦ͏
    • AppWidgetHost
    • WidgetͱϗʔϜը໘ͷ஥ཱͪΛߦ͏
    • AppWidgetHostView
    • WidgetΛදࣔ͢ΔͨΊͷදࣔྖҬΛఏڙ͢Δ
    • AppWidgetManager
    • Widgetͷঢ়ଶΛߋ৽ͨ͠Γɺ৘ใΛऔಘ͢Δ؅ཧΫϥε
    • AppWidgetProvider
    • Widgetͷ֤छͷΠϕϯτΛϋϯυϦϯά͢Δ
    • AppWidgetProviderInfo
    • WidgetͷϝλσʔλΛѻ͏
    34
    

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35. Widget Classes
    • AppWidgetService
    • WidgetIdͷൃߦ΍ϥϯνϟʔ΁ͷϦΫΤετΛߦ͏
    • AppWidgetHost
    • WidgetͱϗʔϜը໘ͷ஥ཱͪΛߦ͏
    • AppWidgetHostView
    • WidgetΛදࣔ͢ΔͨΊͷදࣔྖҬΛఏڙ͢Δ
    • AppWidgetManager
    • Widgetͷঢ়ଶΛߋ৽ͨ͠Γɺ৘ใΛऔಘ͢Δ؅ཧΫϥε
    • AppWidgetProvider
    • Widgetͷ֤छͷΠϕϯτΛϋϯυϦϯά͢Δ
    • AppWidgetProviderInfo
    • WidgetͷϝλσʔλΛѻ͏
    35
    ←࣮૷Ͱ࢖͏
    

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36. Widget Classes: Simplify
    • AppWidgetManager
    • WidgetͷViewͷߋ৽Λߦ͏
    • AppWidgetProvider
    • Widgetͷߋ৽Λϋϯυϧ͢Δ
    • AppWidgetProviderInfo
    • Widgetͷجຊ৘ใΛxmlʹهड़͢Δ
    • xml/layout
    • WidgetͷϨΠΞ΢τɺ௨ৗͷϨΠΞ΢τͱ֓Ͷಉ͡
    36
    

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37. How to make it: Simplify
    ᶃ manifestʹreceiverΛ௥Ճ
    ᶄ AppWidgetProviderInfoͰWidget৘ใΛઃఆ
    ᶅ AppWidgetProviderͰRemoteViewΛੜ੒ˍUpdate
    37
    

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38. Help me AndroidStudio!!
    • AndroidStudioͷFile>New͔Β࡞੒ը໘Λग़ͤΔʂʂ
    • [W]idget͔ͩΒϦετͷҰ൪Լʹ͋Δ
    38
    

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39. Help me AndroidStudio!!
    39
    

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40. Help me AndroidStudio!!
    40
    

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41. Help me AndroidStudio!!
    41
    

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42. Let’s make Widget Layout
    

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43. WidgetͷView
    • جຊతʹ௨ৗͷΞϓϦͱಉ༷ʹ૊Ή͜ͱ͕Ͱ͖·͢
    • WidgetͰ͸ɺ
    • @RemoteView͕෇͍ͨView͕࢖͑Δ
    • @RemotableViewMethod͕෇͍ͨϝιου͕࢖͑Δ
    43
    

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44. View Overview
    44
    Home Launcher
    

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45. View Overview
    45
    Home Launcher
    

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46. View: Layout
    • FrameLayout
    • LinearLayout
    • RelativeLayout
    • GridLayout
    ※ConstraintLayout͸࢖͑ͳ͍ʂʂ
    46
    

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47. View: جຊతͳ΋ͷ
    • Button
    • ImageButton
    • ImageView
    • ProgressBar
    • TextView
    • ViewFlipper
    47
    

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48. View: λΠϚʔܥ
    • Chronometer -> λΠϚʔΛͭ͘Δ
    • TextClock -> σδλϧ࣌ܭΛදࣔͤ͞Δ
    • AnalogClock -> deprecated
    48
    

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49. View: Collection
    • ListView
    • GridView
    • StackView
    • AdapterViewFlipper
    49
    

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50. View Overview
    50
    Home Launcher
    

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51. RemoteViews
    • RemoteViews
    • ϏϡʔώΤϥϧΩʔΛ࣋ͭ
    • Widgetͷදࣔͷཁ
    51
    

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52. View Overview
    52
    Home Launcher
    

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53. RemoteViewsFactory
    • RemoteViewsFactory
    • ListViewͷItemͳͲΛ࡞੒͢Δ͜ͱ͕Ͱ͖Δ
    • AdapterͷΑ͏ͳଘࡏ
    53
    

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54. RemoteViewsFactory: Lifecycle
    54
    sourceɿhttps://developer.android.com/guide/topics/appwidgets/index.html
    

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55. RemoteViewsFactory: Lifecycle
    55
    

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56. Let’s make Widget Provider
    

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57. AppWidgetProvider
    • BroadcastReceiverΛwrapͨ͠ศརͳΫϥε
    • onReceivedͰɺΠϕϯτΛϋϯυϦϯά
    • Widgetͷ࡞੒ʗߋ৽ʗ࡟আͳͲ
    • onReceivedΛ΋ͱʹࣗྗͰ࣮૷΋Մೳ
    57
    

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58. onRecieve
    58
    public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();
    if (AppWidgetManager.ACTION_APPWIDGET_UPDATE.equals(action)) {
    this.onUpdate(…);
    } else if (AppWidgetManager.ACTION_APPWIDGET_DELETED.equals(action)) {
    this.onDeleted(…);
    } else if (AppWidgetManager.ACTION_APPWIDGET_OPTIONS_CHANGED.equals(action)) {
    this.onAppWidgetOptionsChanged(…);
    } else if (AppWidgetManager.ACTION_APPWIDGET_ENABLED.equals(action)) {
    this.onEnabled(…);
    } else if (AppWidgetManager.ACTION_APPWIDGET_DISABLED.equals(action)) {
    this.onDisabled(…);
    } else if (AppWidgetManager.ACTION_APPWIDGET_RESTORED.equals(action)) {
    this.onRestored(…);
    this.onUpdate(…);
    }
    }
    

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59. AppWidgetProviderͷϥΠϑαΠΫϧ
    • onEnabled
    • onUpdated
    • onDeleted
    • onDisabled
    • onAppWidgetOptionsChanged
    • onRestored
    59
    

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60. AppWidgetProviderͷϥΠϑαΠΫϧ
    60
    

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61. onUpdated͸͍ͭݺ͹ΕΔ͔
    • onEnabledͷ௚ޙ
    • onRestoredͷ௚ޙ
    • AppWidgetManager.ACTION_APPWIDGET_UPDATE
    61
    

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62. When call ACTION_APPWIDGET_UPDATE
    • ΢ΟδΣοτઃஔ࣌
    • updatePeriodMillisͷ͕࣌ؒདྷͨͱ͖
    • systemͷىಈ࣌
    62
    

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63. updatePeriodMills
    • WidgetͷΞοϓσʔτִؒɺProviderInfoͰࢦఆ͢Δ
    • ࠷௿ߋ৽ִؒ͸30minͰ͋Δ
    • 0ҎԼΛࢦఆ͢Δͱݺ͹Εͳ͘ͳΔ
    • 30minະຬͷ৔߹͸ɺ30minʹ͞ΕΔ
    • ߋ৽ִؒΛ୹͍ͨ͘͠৔߹͸AlarmManagerͳͲΛ࢖͏
    • updatePeriodMills͸0Λࢦఆ͓ͯ͘͜͠ͱ
    63
    

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64. AppWidgetProviderͷϥΠϑαΠΫϧ
    • onEnabled
    • onUpdated
    • onDeleted
    • onDisabled
    • onAppWidgetOptionsChanged
    • onRestored
    64
    

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65. onAppWidgetOptionsChanged
    • ϦαΠζ͞Εͨͱ͖ʹݺ͹ΕΔ
    • added in API level 16
    • ը໘αΠζΛdpͰऔಘͰ͖Δ
    • খ͘͞ͳͬͨͱ͖ʹཁૉΛඇදࣔͨ͠ΓͰ͖Δ
    •OPTION_MIN_WIDTHɿݱࡏͷwidthͷԼݶ
    •OPTION_MAX_WIDTHɿݱࡏͷwidthͷ্ݶ
    •OPTION_MIN_HEIGHTɿݱࡏͷheightͷԼݶ
    •OPTION_MAX_HEIGHTɿݱࡏͷheightͷ্ݶ
    65
    

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66. onRestored
    • ௚ޙʹonUpdateΛݺͼग़͢
    • added in API level 21
    • backup͔Βprovider͕ϦετΞ͞Εͨͱ͖ʹݺ͹ΕΔ
    • widgetʹඥ෇͍ͨσʔλΛอ͍࣋ͨ͠৔߹ʹ࢖͏
    • ݹ͍id͔Β৽͍͠id΁ͷҾ͖ܧ͗Λߦ͏
    • widgetIdͱ͸ʁʔʼAppendix΁ʂ
    66
    

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67. Sample Code
    

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68. ࣮૷
    68
    class SampleAppWidgetProvider : AppWidgetProvider() {
    override fun onUpdate(…) {
    for (appWidgetId in appWidgetIds) {
    val intent = Intent(context, MainActivity::class.java)
    val pendingIntent = PendingIntent.getActivity(context, 0, intent, 0)
    val views = RemoteViews(context.packageName, R.layout.widget_container)
    views.setTextViewText(R.id.textWidget, "Hello:)")
    views.setOnClickPendingIntent(R.id.button, pendingIntent)
    appWidgetManager.updateAppWidget(appWidgetId, views)
    }
    }
    }
    

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69. ղઆ
    69
    //RemoteViewsʹ࢖༻͍ͨ͠ϨΠΞ΢τΛ౉͢
    val views = RemoteViews(context.packageName, R.layout.widget_container)
    //TextΛಈతʹॻ͖׵͑Δ
    views.setTextViewText(R.id.textWidget, "Hello:)")
    //Click࣌ͷಈ࡞Ληοτ͍ͨ͠ͱ͖
    views.setOnClickPendingIntent(R.id.button, pendingIntent)
    

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70. ղઆ
    70
    views.setTextViewText(R.id.textWidget, "Hello:)")
    //setTextViewText͸͜ͷϝιουΛwrapͨ͠΋ͷ
    setCharSequence(viewId, "setText", text)
    //͜ͷΑ͏ʹ͢Ε͹RemoteViewsʹੜ͑ͯͳ͍ϝιου΋ݺ΂Δ
    views.setInt(viewId, "setBackgroundColor", color)
    

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71. ࣮૷ɿListViewͷέʔε
    71
    fun updateWidget(context: Context, appWidgetId: Int) {
    val manager = AppWidgetManager.getInstance(context)
    val remoteViews = RemoteViews(context.getPackageName(), R.layout.widget_container)
    // ListItemʹߋ৽௨஌Λߦ͏ͨΊͷintentΛ࡞੒
    val intent = Intent(context, SampleWidgetService::class.java)
    .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId)
    remoteViews.setRemoteAdapter(R.id.widgetListView, intent)
    // ListItem͕ۭͩͬͨ৔߹ͷEmptyදࣔ
    remoteViews.setEmptyView(R.id.widgetListView, android.R.id.empty)
    // ListItemΛλοϓͨ͠ͱ͖ͷintentΛηοτ
    // ListItemͷଆͰηοτ͢ΔͷͰͳ͘ɺ͜͜Ͱηοτ͢Δ
    val onClickIntent = Intent(context, DetailActivity::class.java)
    .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
    val onClickPendingIntent = PendingIntent.getActivity(context, 0,
    onClickIntent, PendingIntent.FLAG_UPDATE_CURRENT)
    remoteViews.setPendingIntentTemplate(R.id.widgetListView, onClickPendingIntent)
    manager.updateAppWidget(appWidgetId, remoteViews)
    }
    

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72. ࣮૷ɿListViewͷέʔε
    72
    fun updateWidget(context: Context, appWidgetId: Int) {
    val manager = AppWidgetManager.getInstance(context)
    val remoteViews = RemoteViews(context.getPackageName(), R.layout.widget_container)
    // ListItemʹߋ৽௨஌Λߦ͏ͨΊͷintentΛ࡞੒
    val intent = Intent(context, SampleWidgetService::class.java)
    .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId)
    remoteViews.setRemoteAdapter(R.id.widgetListView, intent)
    // ListItem͕ۭͩͬͨ৔߹ͷEmptyදࣔ
    remoteViews.setEmptyView(R.id.widgetListView, android.R.id.empty)
    // ListItemΛλοϓͨ͠ͱ͖ͷintentΛηοτ
    // ListItemͷଆͰηοτ͢ΔͷͰͳ͘ɺ͜͜Ͱηοτ͢Δ
    val onClickIntent = Intent(context, DetailActivity::class.java)
    .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
    val onClickPendingIntent = PendingIntent.getActivity(context, 0,
    onClickIntent, PendingIntent.FLAG_UPDATE_CURRENT)
    remoteViews.setPendingIntentTemplate(R.id.widgetListView, onClickPendingIntent)
    manager.updateAppWidget(appWidgetId, remoteViews)
    }
    

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73. ࣮૷ɿListViewͷέʔε
    73
    fun updateWidget(context: Context, appWidgetId: Int) {
    val manager = AppWidgetManager.getInstance(context)
    val remoteViews = RemoteViews(context.getPackageName(), R.layout.widget_container)
    // ListItemʹߋ৽௨஌Λߦ͏ͨΊͷintentΛ࡞੒
    val intent = Intent(context, SampleWidgetService::class.java)
    .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId)
    remoteViews.setRemoteAdapter(R.id.widgetListView, intent)
    // ListItem͕ۭͩͬͨ৔߹ͷEmptyදࣔ
    remoteViews.setEmptyView(R.id.widgetListView, android.R.id.empty)
    // ListItemΛλοϓͨ͠ͱ͖ͷintentΛηοτ
    // ListItemͷଆͰηοτ͢ΔͷͰͳ͘ɺ͜͜Ͱηοτ͢Δ
    val onClickIntent = Intent(context, DetailActivity::class.java)
    .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
    val onClickPendingIntent = PendingIntent.getActivity(context, 0,
    onClickIntent, PendingIntent.FLAG_UPDATE_CURRENT)
    remoteViews.setPendingIntentTemplate(R.id.widgetListView, onClickPendingIntent)
    manager.updateAppWidget(appWidgetId, remoteViews)
    }
    

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74. ࣮૷ɿListView(Item)ͷέʔε
    74
    override fun getViewAt(position: Int): RemoteViews {
    val rv = RemoteViews(context.packageName, R.layout.list_item)
    rv.setTextViewText(R.id.list_text, items[position])
    //͜͜ͰIntentΛ٧ΊΔɻ͜ͷintent͸͜ͷΫϥεͷݺͼग़͠ݩ΁౉͞ΕΔ
    //ListItemͷ࣋ͭσʔλ͕ཉ͍͠৔߹͸͜ͷintentʹ٧ΊΔ
    rv.setOnClickFillInIntent(R.id.list_container, createIntent(position))
    return rv
    }
    

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75. Let’s make Widget ProviderInfo
    

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76. AppWidgetProviderInfo
    Widgetͦͷ΋ͷͷઃఆΛxmlͰهड़͢Δ
    76
    android:minHeight="40dp"
    android:minResizeWidth="40dp"
    android:minWidth="250dp"
    android:resizeMode="horizontal|vertical"
    android:updatePeriodMillis="1800000"
    android:configure="com.example.ymnd.widgetsampleapp.ConfigureActivity"
    android:widgetCategory="home_screen|keyguard">
    
    

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77. ը໘ͷେ͖͞Λࢦఆ͢Δ΋ͷ
    • int minWidth / int minHeight
    • σϑΥϧτͷ෯ͱߴ͞ΛdpͰࢦఆ͢Δ
    • int minResizeWidth / int minResizeHeight
    • ϦαΠζͷԼݶΛdpͰࢦఆ͢Δ
    • minResizeWidth <= minWidth
    • minResizeHeight <= minHeight
    • int resizeMode(horizontal|vertical or none)
    • Ͳͷํ޲ͷϦαΠζΛڐՄ͢Δ͔
    77
    

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78. ϓϨϏϡʔ
    • int previewImage
    • Widget PickerʗDialogͷϓϨϏϡʔʹ༻͍ΒΕΔ
    78
    

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79. ϨΠΞ΢τ
    • int initialKeyguardLayout
    • KeyGuardʹදࣔͨ͠ͱ͖ͷϨΠΞ΢τΛࢦఆ͢Δ
    • int initialLayout
    • ΢ΟδΣοτͷϨΠΞ΢τΛࢦఆ͢Δ
    • int widgetCategory(home_screen|keyguard)
    • ΢ΟδΣοτΛͲ͜ʹஔ͚Δ͔ࢦఆ͢Δ
    • keyguard͸Android 5.0Ҏ্Ͱ͸࢖༻Ͱ͖ͳ͍
    79
    

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80. ը໘ߋ৽ܥ
    • int updatePeriodMillis
    • ϛϦඵͰWidgetͷߋ৽ִؒΛࢦఆ͢Δ(30minҎ্)
    • ComponentName configure
    • WidgetΛ௥Ճͨ͠৔߹ʹࢦఆͨ͠ActivityΛݺͼग़ͯ͘͠ΕΔ
    • onUpdate͸ݺ͹Εͳ͍ͷͰผ్ݺͿඞཁ͕͋Δ
    • Widget Dialog͔Βઃஔͨ͠ͱ͖ʹ͸ݺ͹Εͳ͍
    • int autoAdvanceViewId
    • StackViewͳͲࢠཁૉΛ࣋ͭϨΠΞ΢τͷidΛࢦఆ͢Δ
    • Ϣʔβʔͷૢ࡞͕ͳͯ͘΋ࣗಈͰViewΛਐΊΔ
    80
    

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81. configureิ଍
    • ίϯϑΟάը໘ʹ࢖༻͢ΔActivity͸manifestʹintent-
    filterΛηοτ͢Δ
    81
    android:name=".ColorConfigureActivity"
    android:theme="@style/TransParentTheme">
    
    
    
    
    

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82. ProviderͱProviderInfoͷิ଍
    • ProviderͱProviderInfo͸manifestͰҎԼͷΑ͏ʹࢦఆ
    ͢Δ
    82
    
    
    
    
    android:name="android.appwidget.provider"
    android:resource="@xml/resizable_app_widget_info" />
    
    

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83. New API
    

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84. requestPinAppWidget
    & isRequestPinAppWidgetSupported
    

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85. what is requestPinAppWidget?
    • AndroidO͔Β௥Ճ͞ΕͨAPI
    • ΞϓϦͷத͔ΒWidgetͷ௥ՃΛߦ͑ΔΑ͏ʹʂʂ
    85
    

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86. API's
    • requestPinAppWidget
    • ΞϓϦ಺ʹWidgetΛ௥Ճ͢Δ
    • isRequestPinAppWidgetSupported
    • ϗʔϜը໘ʹ௥ՃͰ͖Δ͔νΣοΫ͢Δ
    86
    

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87. ࣮૷
    87
    val widgetManager = AppWidgetManager.getInstance(this)
    val provider = ComponentName(this, SampleAppWidgetProvider::class.java)
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return
    if (widgetManager.isRequestPinAppWidgetSupported) {
    val callbackIntent = Intent(this, SubActivity::class.java)
    val successCallback
    = PendingIntent.getActivity(this, 0, callbackIntent, 0)
    val extras = Bundle()
    val remoteViews = RemoteViews(this.packageName, R.layout.widget_container)
    remoteViews.setTextViewText(R.id.button, "ͯ͢ͱ")
    extras.putParcelable(EXTRA_APPWIDGET_PREVIEW, remoteViews)
    widgetManager.requestPinAppWidget(provider, extras, null)
    }
    

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88. ࣮૷
    88
    val widgetManager = AppWidgetManager.getInstance(this)
    val provider = ComponentName(this, SampleAppWidgetProvider::class.java)
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return
    if (widgetManager.isRequestPinAppWidgetSupported) {
    val callbackIntent = Intent(this, SubActivity::class.java)
    val successCallback
    = PendingIntent.getActivity(this, 0, callbackIntent, 0)
    val extras = Bundle()
    val remoteViews = RemoteViews(this.packageName, R.layout.widget_container)
    remoteViews.setTextViewText(R.id.button, "ͯ͢ͱ")
    extras.putParcelable(EXTRA_APPWIDGET_PREVIEW, remoteViews)
    widgetManager.requestPinAppWidget(provider, extras, null)
    }
    

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89. ղઆ: isRequestPinAppWidgetSupported
    • request api͕࢖༻Ͱ͖Δ͔࣮ߦલʹ֬ೝ͢Δ
    • requestPinAppWidgetͷํͰ΋booleanΛฦ͢
    • →AppendixʹԿΛ֬ೝ͍ͯ͠Δ͔·ͱΊͨ
    89
    

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90. ࣮૷
    90
    val widgetManager = AppWidgetManager.getInstance(this)
    val provider = ComponentName(this, SampleAppWidgetProvider::class.java)
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return
    if (widgetManager.isRequestPinAppWidgetSupported) {
    val callbackIntent = Intent(this, SubActivity::class.java)
    val successCallback
    = PendingIntent.getActivity(this, 0, callbackIntent, 0)
    val extras = Bundle()
    val remoteViews = RemoteViews(this.packageName, R.layout.widget_container)
    remoteViews.setTextViewText(R.id.button, "ͯ͢ͱ")
    extras.putParcelable(EXTRA_APPWIDGET_PREVIEW, remoteViews)
    widgetManager.requestPinAppWidget(provider, extras, null)
    }
    

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91. ղઆ: callbackIntent
    • ੒ޭ࣌ͷcallbackͰݺͼ͍ͨintentΛ͜͜Ͱ༻ҙ͢Δ
    • bundleΛηοτ͢Δ͜ͱ΋Ͱ͖Δ
    • EXTRA_APPWIDGET_ID͕intentʹηοτ͞ΕΔ
    • ग़͠෼͚Δཁૉ͕͋Ε͹widgetIdΛอଘ͢Δ͜ͱ
    • config͸request੒ޭ࣌ʹݺ͹Εͳ͍ͷͰ஫ҙ
    91
    

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92. ࣮૷
    92
    val widgetManager = AppWidgetManager.getInstance(this)
    val provider = ComponentName(this, SampleAppWidgetProvider::class.java)
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return
    if (widgetManager.isRequestPinAppWidgetSupported) {
    val callbackIntent = Intent(this, SubActivity::class.java)
    val successCallback
    = PendingIntent.getActivity(this, 0, callbackIntent, 0)
    val extras = Bundle()
    val remoteViews = RemoteViews(this.packageName, R.layout.widget_container)
    remoteViews.setTextViewText(R.id.button, "ͯ͢ͱ")
    extras.putParcelable(EXTRA_APPWIDGET_PREVIEW, remoteViews)
    widgetManager.requestPinAppWidget(provider, extras, null)
    }
    

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93. ղઆ: successCallback
    • ઃஔޙʹݺͿcallbackΛPendingIntentͱͯ͠ηοτ
    • callback͸Widgetͷ௥ՃμΠΞϩάͰඞཁͱͳΔ
    • ࣗಈͰ௥ՃorखಈͰ௥Ճͷ̎௨Γ͋Δ
    • ࣗಈͰ௥Ճ
    • ΞϓϦͷը໘͔ΒભҠ͠ͳ͍
    • खಈͰ௥Ճ
    • ϗʔϜϥϯνϟʔʹભҠ
    • ࣗ෼ͷΞϓϦʹ໭ͬͯ͜ͳ͍
    • BroadcastͳͲΛ࢖༻ͯ͠෮ؼͯ͠΋Β͏
    93
    

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94. ղઆ: successCallback
    • ઃஔޙʹݺͿcallbackΛPendingIntentͱͯ͠ηοτ
    • callback͸Widgetͷ௥ՃμΠΞϩάͰඞཁͱͳΔ
    • ࣗಈͰ௥ՃorखಈͰ௥Ճͷ̎௨Γ͋Δ
    • ࣗಈͰ௥Ճ
    • ΞϓϦͷը໘͔ΒભҠ͠ͳ͍
    • खಈͰ௥Ճ
    • ϗʔϜϥϯνϟʔʹભҠ
    • ࣗ෼ͷΞϓϦʹ໭ͬͯ͜ͳ͍
    • BroadcastͳͲΛ࢖༻ͯ͠෮ؼͯ͠΋Β͏
    94
    

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95. ղઆ: successCallback
    • ઃஔޙʹݺͿcallbackΛPendingIntentͱͯ͠ηοτ
    • callback͸Widgetͷ௥ՃμΠΞϩάͰඞཁͱͳΔ
    • ࣗಈͰ௥ՃorखಈͰ௥Ճͷ̎௨Γ͋Δ
    • ࣗಈͰ௥Ճ
    • ΞϓϦͷը໘͔ΒભҠ͠ͳ͍
    • खಈͰ௥Ճ
    • ϗʔϜϥϯνϟʔʹભҠ
    • ࣗ෼ͷΞϓϦʹ໭ͬͯ͜ͳ͍
    • BroadcastͳͲΛ࢖༻ͯ͠෮ؼͯ͠΋Β͏
    95
    

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96. ࣮૷
    96
    val widgetManager = AppWidgetManager.getInstance(this)
    val provider = ComponentName(this, SampleAppWidgetProvider::class.java)
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return
    if (widgetManager.isRequestPinAppWidgetSupported) {
    val callbackIntent = Intent(this, SubActivity::class.java)
    val successCallback
    = PendingIntent.getActivity(this, 0, callbackIntent, 0)
    val extras = Bundle()
    val remoteViews = RemoteViews(this.packageName, R.layout.widget_container)
    remoteViews.setTextViewText(R.id.button, "ͯ͢ͱ")
    extras.putParcelable(EXTRA_APPWIDGET_PREVIEW, remoteViews)
    widgetManager.requestPinAppWidget(provider, extras, null)
    }
    

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97. ղઆ: extras
    • custom previewΛηοτͰ͖Δ
    • previewImageͱҟͳΔ
    • RemoteViewsΛಈతʹΧελϜͯ͠ηοτՄೳ
    • preview༻Ͱ͋ΓɺonUpdate͞ΕΔࡍʹߋ৽͞ΕΔ
    97
    

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98. ࣮૷
    98
    val widgetManager = AppWidgetManager.getInstance(this)
    val provider = ComponentName(this, SampleAppWidgetProvider::class.java)
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return
    if (widgetManager.isRequestPinAppWidgetSupported) {
    val callbackIntent = Intent(this, SubActivity::class.java)
    val successCallback
    = PendingIntent.getActivity(this, 0, callbackIntent, 0)
    val extras = Bundle()
    val remoteViews = RemoteViews(this.packageName, R.layout.widget_container)
    remoteViews.setTextViewText(R.id.button, "ͯ͢ͱ")
    extras.putParcelable(EXTRA_APPWIDGET_PREVIEW, remoteViews)
    widgetManager.requestPinAppWidget(provider, extras, null)
    }
    

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99. ղઆ: requestPinAppWidget
    • WidgetDialogΛදࣔ͢Δϝιου
    • ฦΓ஋͸booleanͰ͋Δ
    • true͸ɺrequestPinAppWidgetʹରԠ͍ͯ͠Δ
    • Widget͕௥ՃͰ͖ͨ͜ͱΛҙຯ͠ͳ͍ʂʂ
    99
    

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100. requestPinAppWidgetͰWidgetͷ഑ஔʹࣦഊͨ͠ΒͲ͏ͳΔ͔
     • Widgetͷ࡞੒੒ޭ͔࣌͠successCallbackΛݺ͹Εͳ͍
     • fallback͕ͳ͍
     • खಈ഑ஔͰࣦഊͨ͠৔߹ΞϓϦΛ࠶౓։͍ͯ΋Β͏ඞ
     ཁ͕͋Δ
     100
     

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101. requestPinAppWidgetͷิ଍
     • ௥ՃμΠΞϩά͸ࣗ෼ͰΧελϜ͢Δ͜ͱ͸Ͱ͖ͳ͍
     101
     

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102. Conclusion
     • WidgetDialogͰ௥Ճํ๏͕ܶతʹ෼͔Γ΍͘͢ͳͬͨ
     • ৽نAPIΛؚΊ࣮૷͕γϯϓϧͳͷͰ࡞Γ΍͍͢
     • ΞϓϦΛΑΓࣗ෼ͷελΠϧʹ߹Θͤͯ࢖ͬͯ΋Β͑Δ
     102
     

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103. Conclusion
     • WidgetDialogͰ௥Ճํ๏͕ܶతʹ෼͔Γ΍͘͢ͳͬͨ
     • ৽نAPIΛؚΊ࣮૷͕γϯϓϧͳͷͰ࡞Γ΍͍͢
     • ΞϓϦΛΑΓࣗ෼ͷελΠϧʹ߹Θͤͯ࢖ͬͯ΋Β͑Δ
     103
     
     

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104. whoami
     • twitter:@ymnd, github:@ymnder
     • Application Engineer
     • Android ೔ܦిࢠ൛ΞϓϦ
     • Android ࢴ໘ϏϡʔΞʔΞϓϦ
     • ٕज़ॻయ̐Ͱ೔ܦిࢠ൛ͷ஌ݟΛ·ͱΊͨຊΛग़͠·͢
     104
     

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105. Widget΍͍͖ͬͯ
     

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106. Appendix
     

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107. How to Calculate minWidth and minHeight
     WidgetͷminWidth/minHeightͷࢉग़ࣜ
     70 × cell − 30 = size
     ྫɿ1ߦ2ྻͷwidgetΛ࡞੒͢Δ৔߹͸
     minHeight =70 x 1 - 30 = 40
     minWidth = 70 x 2 - 30 = 110
     107
     

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108. How to Calculate minWidth and minHeight
     • API14ҎલͰܭࢉํ๏͕Ξοϓσʔτ͞Εͨʂ
     • targetSDK͕API14Ҏ্ͷ৔߹ɺϗʔϜը໘ͷ΢ΟδΣ
     οτͷ֤୺ʹϚʔδϯ͕ࣗಈతʹ௥Ճ͞ΕΔ
     • ͦͷͨΊɺAndroid4.0Ҏ্Ͱ͸widgetʹ༧Ί༨നΛ௥
     Ճ͢Δඞཁ͸ͳ͍
     108
     

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109. Config Best Practice(from Material Design Guideline)
     • config͸؆ܿʹ͠ɺ̎ʙ̏Ҏ্ͷઃఆ߲໨Λઃ͚ͳ͍
     • ϑϧεΫϦʔϯΑΓμΠΞϩάͰબ୒ͯ͠΋Β͏
     • WidgetͷઃఆͰ͋Δ͜ͱ͕෼͔Γ΍͍͢
     • setupޙ͸Widgetʹ͸ઃఆ༻ͷϘλϯΛදࣔ͠ͳ͍
     109
     

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110. how is appWidgetId created?
     • appWidgetId͸WidgetΛߋ৽͢Δͱ͖ʹ༻͍ΔID
     • ͜ͷID͕ͲͷΑ͏ʹৼΒΕ͍ͯΔ͔͕ؾʹͳΔ
     • ຊ౰ʹϢχʔΫͳͷʁ
     • AppWidgetHost.java#allocateAppWidgetId
     110
     //Get a appWidgetId for a host in the calling process.
     //@return a appWidgetId
     public int allocateAppWidgetId() {…}
     

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111. AppWidgetServiceImpl.java
     111
     public int allocateAppWidgetId(String callingPackage, int hostId) {
     ...
     if (mNextAppWidgetIds.indexOfKey(userId) < 0) {
     // ॳظԽॲཧ
     // AppWidgetManager.INVALID_APPWIDGET_ID͸0
     // Widget͸1͔Β࠾൪͞Ε͍ͯ͘ɻ
     mNextAppWidgetIds.put(userId,
     AppWidgetManager.INVALID_APPWIDGET_ID + 1);
     }
     final int appWidgetId = incrementAndGetAppWidgetIdLocked(userId);
     ...
     }
     

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112. ͲͷΑ͏ʹ൪߸͕ৼΒΕΔ͔ʁ
     • mNextAppWidgetIds
     • {userId, appWidgetId}ͷϖΞͰid͕อଘ͞ΕΔ
     • ಡΈग़ͨ͠ޙɺ+1ͯ͠࠶౓อଘ͍ͯ͠Δ
     112
     private final SparseIntArray mNextAppWidgetIds = new SparseIntArray();
     final int appWidgetId = peekNextAppWidgetIdLocked(userId) + 1;
     return mNextAppWidgetIds.get(userId);
     

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113. ͲͷΑ͏ʹ൪߸͕ৼΒΕΔ͔ʁ
     • ݁࿦ɿಛผͳ஋Λੜ੒͍ͯ͠ΔΘ͚Ͱ͸ͳ͍ɻ
     • AppWidgetServiceImpl͸ServiceΫϥε
     • ଞͷΞϓϦʹ΋ׂΓ౰ͯΒΕΔ͕ϢχʔΫʹͳΔ
     • औಘ͍ͨ͠৔߹͸͜ΕΛ࢖͑͹औಘͰ͖Δ
     113
     

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114. requestPinAppWidget & isRequestPinAppWidgetSupportedͷฦΓ஋
     • isRequestPinAppWidgetSupported
     • Return {@code TRUE} if the default launcher supports
     • updateAppWidget
     • {@code TRUE} if the launcher supports this feature.
     Note the API will return without waiting for the user to
     respond, so getting {@code TRUE} from this API does
     not mean the shortcut is pinned. {@code FALSE} if the
     launcher doesn't support this feature.
     • ͜Εʹ͸ͲΜͳҧ͍͕͋Δͷ͔
     114
     

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115. isRequestPinAppWidgetSupportedͷฦΓ஋
     AppWidgetManager
     → AppWidgetServiceImpl.java#isRequestPinAppWidgetSupported
     → ShortcutService.java#isRequestPinItemSupported
     → ShortcutRequestPinProcessor.java#isRequestPinItemSupported
     → ShortcutRequestPinProcessor.java#getRequestPinConfirmationActivity
     ShortcutService.java#getRequestPinConfirmationActivity
     115
     

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116. ShortcutService.java#getRequestPinConfirmationActivity
     • default launcher͔Βػೳ͕ϋϯυϧ͞Ε͍ͯΔActivity
     Λ୳͍ͯ͠Δ
     • औಘͰ͖ͳ͔ͬͨ৔߹͸nullΛฦ͢
     • nullͷ৔߹falseͰɺ͜Ε͕ඇରԠͱ͍͏൑ఆͱͳΔ
     116
     

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117. requestPinAppWidgetͷฦΓ஋
     AppWidgetManager
     → AppWidgetServiceImpl
     → ShortcutService#requestPinAppWidget
     → ShortcutService.java#requestPinItem
     → ShortcutRequestPinProcessor.java#requestPinItemLocked
     → ShortcutService.java#getRequestPinConfirmationActivity
     117
     

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118. requestPinAppWidgetͷฦΓ஋
     • default launcher͔Βػೳ͕ϋϯυϧ͞Ε͍ͯΔActivity
     Λ୳͍ͯ͠Δ
     • isRequestPinAppWidgetSupportedͱಉ͡൑ఆΛߦ͏
     • ΋͠trueͩͬͨ৔߹͸requestॲཧ͕ਐΜͰ͍͘
     118
     

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119. ฦΓ஋ͷࠩҟ
     • ݁࿦ɿಉ͡΋ͷͰ͋Δ
     • ϦΫΤετલʹ൑ఆΛ͢΂͖ͳͷͰɺ
     isRequestPinAppWidgetSupportedΛ࢖͏
     • docͷ௨ΓɺrequestPinAppWidget͸ɺWidgetΛஔ͚
     ͔ͨͲ͏͔Λฦ͞ͳ͍
     119
     

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120. requestPinAppWidgetͷcallback͸Ͳ͜Ͱݺ͹ΕΔ͔ʁ
     • ԿΛ΋ͬͯsuccessͱ൑ఆ͍ͯ͠ΔͷͩΖ͏͔
     • ·ͨfallbackͱͯ͠Կ͔ݺ΂ͨΓ͸͠ͳ͍ͩΖ͏͔
     120
     

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121. callback͸Ͳ͜Ͱݺ͹ΕΔ͔ʁ
     AppWidgetManager
     → AppWidgetServiceImpl
     → ShortcutService#requestPinAppWidget
     → ShortcutService.java#requestPinItem
     121
     

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122. callback͸ͲͷλΠϛϯάͰݺ͹ΕΔ͔ʁ
     → LauncherApps.java#PinItemRequest
     ੒ޭ࣌ʹacceptΛݺͿ
     → ShortcutRequestPinProcessor.java#PinAppWidgetRequestInner
     → ShortcutRequestPinProcessor.java#PinItemRequestInner
     ͜͜Ͱacceptͷத਎͕࣮૷͞Ε͍ͯΔ
     → ShortcutRequestPinProcessor.java#directPinShortcut
     ྫ֎ΛΩϟον͍ͯͯ͠ɺ࡞੒Ͱ͖ͳ͔ͬͨ৔߹͸falseΛฦ͢
     tryAccept͕falseʹͳΓɺίʔϧόοΫ͕࣮ߦ͞Εͳ͍
     → ShortcutService.java#fixUpIncomingShortcutInfo
     122
     

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123. callback͸ͲͷλΠϛϯάͰݺ͹ΕΔ͔ʁʢऴ఺ʣ
     • tryAccept͕trueͷͱ͖sendResultIntent͕࣮ߦ͞ΕΔ
     • ͢ͳΘͪ͜͜Ͱcallback͕࣮ߦ͞ΕΔ
     • ࣦഊ࣌͸Կ΋͞Εͳ͍Ͱfalse͕ฦΔ
     123
     // PinItemRequestInner#accept
     // Pin it and send the result intent.
     if (tryAccept()) {
     mProcessor.sendResultIntent(mResultIntent, extras);
     return true;
     } else {
     return false;
     }
     

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124. WidgetͷCustomView
     • @RemoteViewΛ͚ͭΕ͹ಠࣗͷViewΛఆٛͰ͖Δʁ
     • Ͱ͖ͳ͍Α͏Ͱ͢
     • http://d.hatena.ne.jp/westzaki/20120303/1330776734
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125. References
     [ΨΠυϥΠϯ]
     https://developer.android.com/guide/topics/appwidgets/index.html
     [RemoteViews]
     https://qiita.com/KeithYokoma/items/9e021e2f26a9a784287d
     [Widgetͷͭ͘Γ͔ͨ]
     http://y-anz-m.blogspot.jp/2011/06/androidappwidget.html
     [Widget Dialogʹ͍ͭͯ]
     https://medium.com/wearebase/android-oreo-widget-pinning-in-
     kotlin-398d529eab28
     ੋඇ͝ҰಡΛ :)
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126. Widget΍͍͖ͬͯ
     

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