React Nativeで作る色々なジェスチャー

Transcript

1. @saitoxu React NativeͰ࡞Δ ৭ʑͳδΣενϟʔ

2. ࣗݾ঺հ • @saitoxu ʢ͍͞ͱ͏ʣ • Co-Founder&CTO@Carat Inc. • 2ظ໨ʹೖͬͨ͹͔ΓͷελʔτΞο ϓ

   • React, React Native, Rails, Python… • ωΠςΟϒ͸झຯͰ͔͠ॻ͍ͨ͜ͱͳ ͍Ϛϯ

3. αʔϏε঺հ • ٻ৬ɾస৬ΞϓϦGLITʢάϦοτʣ • TinderϥΠΫͳUI͕ಛ௃ • https://glit.io • React Native੡

   • ͕ͩݱࡏiOS൛ͷΈ.. • JSΤϯδχΞઈࢍืूͯ͠·͢..ʂ

4. ΞϓϦͰΑ͘࢖͏ δΣενϟʔ

5. 1. λοϓ 2. ௕ԡ͠ 3. μϒϧλοϓ 4. υϥοά 5. εϫΠϓ

   6. ϐϯνΠϯˍϐϯνΞ΢τ

6. React NativeͰ Ͳ͏࡞Δ͔ʁ

7. 1. λοϓ • Touchable*ίϯϙʔωϯτΛ࢖༻

8. 2. ௕ԡ͠ • Touchable*ίϯϙʔωϯτͷonLongPressͱ͍͏props Λ࢖༻

9. 3. μϒϧλοϓ • Touchable*ͷonPressൃՐͷִ͕ؒx msҎ಺ͩͬͨΒμϒϧλοϓͱΈͳ͢

10. 3. μϒϧλοϓ • Touchable*ͷonPressൃՐͷִ͕ؒx msҎ಺ͩͬͨΒμϒϧλοϓͱΈͳ͢

11. 4. υϥοά • δΣενϟʔΛѻ͏PanResponderΛ࢖༻ • evt΍gestureStateΛհͯ͠Componentͷ࠲ඪ΍ҠಈྔͳͲ͕औಘͰ͖Δ

12. None

13. pan.x pan.y (1) ॳظԽ

14. offset x + 0 offset y + 0 (2) υϥοά։࢝࣌

15. offset x offset y dx dy (3) υϥοάத

16. pan.x pan.y (4) ཭ͨ͠ޙ

17. 5. εϫΠϓ • υϥοάͱ͋·ΓมΘΒͳ͍ • ᮢ஋ͷઃఆͱΞχϝʔγϣϯ͕ඞཁ υϥοάͯ͠ᮢ஋Λ௒͑Δ ΞχϝʔγϣϯͰඈΜͰ͘

18. dx threshold decay

19. 6. ϐϯνΠϯˍϐϯνΞ΢τ • gestureState.numberActiveTouches: ༗ޮͳ λονͷ਺ • evt.nativeEvent.touches: λονΠϕϯτͷΦ ϒδΣΫτɻλον͞Εͨ৔ॴͷ࠲ඪͳͲ͕ೖͬ

    ͍ͯΔ

20. distance

21. distance

22. ͓ΘΓʹ • جຊతͳδΣενϟʔͷ࣮૷Λ঺հ͠·ͨ͠ • ͜ΕΒͷδΣενϟʔ΍AnimationͳͲΛ͞Β ʹ૊Έ߹ΘͤɺωΠςΟϒͬΆ͍͍͍ײ͡ͷ UI/UXΛ࡞͍͖ͬͯ·͠ΐ͏

23. Thanks!!