Flutter_meetup_tokyo__10.pdf

Transcript

1. Flutterʹ͓͚Δը૾ฤ ूػೳ Flutter meetup Tokyo #10 Shogo yamada
2. ࣗݾ঺հ Nama: Shogo Yamada Job: AndroidΤϯδχΞ Twitter: @yshogo87
3. Flutterʹ͓͚Δը૾ฤूػೳ
5. ػೳ • ը૾Λબ୒͢Δ • ςΩετΛೖྗޙɺը૾ͷ্ʹςΩετΛ͓͚Δ • ֦େɺॖখͰ͖ΔΑ͏ʹ͢Δ • ελϯϓΛஔ͚Δ • ฤूޙͨ͠ը૾ΛΫϥ΢υʹอଘ͢Δ
6. ػೳ • ը૾Λબ୒͢Δ • ςΩετΛೖྗޙɺը૾ͷ্ʹςΩετΛ͓͚Δ • ֦େɺॖখͰ͖ΔΑ͏ʹ͢Δ • ελϯϓΛஔ͚Δ • ฤूޙͨ͠ը૾ΛΫϥ΢υʹอଘ͢Δ
7. WidgetΛಈ͔͢ matrix_gesture_detector
8. Widget _drackableWidget(Widget widget, ValueNotifier<Matrix4> notifier) { return MatrixGestureDetector( onMatrixUpdate: (m, tm, sm, rm) { notifier.value = m; }, child: AnimatedBuilder( animation: notifier, builder: (ctx, child) { return Transform( transform: notifier.value, child: Stack( children: <Widget>[ Positioned.fill( child: Container( child: FittedBox( child: widget, ), ),
10. ػೳ • ը૾Λબ୒͢Δ • ςΩετΛೖྗޙɺը૾ͷ্ʹςΩετΛ͓͚Δ • ֦େɺॖখͰ͖ΔΑ͏ʹ͢Δ • ελϯϓΛஔ͚Δ • ฤूޙͨ͠ը૾ΛΫϥ΢υʹอଘ͢Δ
11. εΫγϣΛͱΔ
12. εΫγϣΛͱΔ RepainBoundaryͰғͬͯ͋Δ Widgetͷൣғ಺͚ͩεΫϦʔ ϯγϣοτΛࡱӨͰ͖Δ
13. εΫγϣΛͱΔ
14. ݱࡏ։ൃத ݱࡏ͸InstagramͷετʔϦʔ ʹ౤ߘ͢ΔͨΊͷը૾ฤूΞϓ Ϧέʔγϣϯ։ൃத TwitterͰ։ൃ͍ͯ͠Δ༷ࢠΛ࣮ گͯ͠ΔͷͰΑΖ͚͠Ε͹ϑΥ ϩʔ͓ئ͍͠·͢ɻ
 ˠ @yshogo87
15. ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠