Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Android Animation祭り!!!
Search
sasami
August 06, 2017
Technology
1
160
Android Animation祭り!!!
【東京】【女性限定】言語不問!浴衣でビールクズミニセッション大会#javajo(
https://javajo.doorkeeper.jp/events/63154
)で発表した内容です
sasami
August 06, 2017
Tweet
Share
More Decks by sasami
See All by sasami
Overview of Gomobile and Its Use Cases #GopherConAU
sasamihoo
0
120
Engineer’s meetup for student
sasamihoo
0
2.5k
What's new in ARCore from IO19
sasamihoo
1
490
Let's write test code of RxJava!!
sasamihoo
0
1k
How to Kotlin のセッションからKotlinらしい表現を学ぶ / learn_how_to_kotlin
sasamihoo
2
1.4k
Wifi-RTTについて / Wifi-RTT
sasamihoo
1
3.8k
Other Decks in Technology
See All in Technology
10年の共創が示す、これからの開発者と企業の関係 ~ Crossroad
soracom
PRO
1
190
Exadata Database Service on Dedicated Infrastructure(ExaDB-D) UI スクリーン・キャプチャ集
oracle4engineer
PRO
2
5.4k
about #74462 go/token#FileSet
tomtwinkle
1
330
BtoBプロダクト開発の深層
16bitidol
0
320
o11yで育てる、強い内製開発組織
_awache
3
120
BirdCLEF+2025 Noir 5位解法紹介
myso
0
190
許しとアジャイル
jnuank
1
130
stupid jj tricks
indirect
0
7.9k
[2025-09-30] Databricks Genie を利用した分析基盤とデータモデリングの IVRy の現在地
wxyzzz
0
470
職種別ミートアップで社内から盛り上げる アウトプット文化の醸成と関係強化/ #DevRelKaigi
nishiuma
2
140
Why React!?? Next.jsそしてReactを改めてイチから選ぶ
ypresto
10
4.5k
Oracle Cloud Infrastructure:2025年9月度サービス・アップデート
oracle4engineer
PRO
0
410
Featured
See All Featured
Intergalactic Javascript Robots from Outer Space
tanoku
273
27k
Become a Pro
speakerdeck
PRO
29
5.5k
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.2k
Product Roadmaps are Hard
iamctodd
PRO
54
11k
The Power of CSS Pseudo Elements
geoffreycrofte
79
6k
How GitHub (no longer) Works
holman
315
140k
Facilitating Awesome Meetings
lara
56
6.6k
A Tale of Four Properties
chriscoyier
160
23k
GraphQLの誤解/rethinking-graphql
sonatard
73
11k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
657
61k
The Cost Of JavaScript in 2023
addyosmani
53
9k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
140
34k
Transcript
AnimationࡇΓʂʂʂ @sasamihoo (teatime hackathonͷϝϯλʔ͖ͯ͠·ͨ͠)
ࣗݾհ • sasami(@sasamihoo) • androidΞϓϦ։ൃͱαʔόʔαΠυ(rails)ͷ ΠϯλʔϯΛͯ͠·͢ • ࠷ۙKotlinʹ·ͬͯ·͢ • ࠓճॳొஃʂʂʂ(ॳ৺ऀ)
Teatime hackathonͷϝϯλʔΛ͠ ͖ͯ·ͨ͠ʂʂʂ
Teatime hackathonͱʁ • ౦େঁࢠݶఆͷϋοΧιϯ • ΄΅શһॳ৺ऀ40ਓ(จ:ཧ=7:3)
Teatime hackathonͱʁ • ܭ4ؒͰνʔϜ͝ͱʹ(5ਓ×8νʔϜ)AndroidΞ ϓϦΛ࡞Δ (1:ߨशձ,2:ΞΠσΟΞܾΊΔ,3~4ؒ: ࣮+ൃද) • ςʔϚʮՆʯ •
ϝϯλʔྡͰ࣮αϙʔτ
େมͩͬͨ͜ͱ • Constrait LayoutΛ࠷ॳʹڭ͑ͯ͠·͏ͱxml Ͱमਖ਼͠ͳ͚Εͳ͘ͳͬͨ࣌େม • αʔόʔͳ͠Ͱ࡞ΔΞϓϦ
ษڧʹͳͬͨ͜ͱ • ঁࢠઢͰͷΞϓϦ • ϋοΧιϯͰͷΞϓϦ։ൃ
ঁࢠઢͰͷΞϓϦ • ͷΈͰͭͳ͕ΔɾૉੑΛΒͳ͍ਓͱ ظతʹͭͳ͕Δͱ͍͏ΞΠσΞ • Ξχϝʔγϣϯଟ͍ʂʂʂ (ྲྀΕΛදݱɾνϟοτࣗମ͕Ξχϝʔγϣ ϯɾϗλϧΛදݱ)
ͱ͍͏͜ͱͰ… • AnimationࡇΓΛΓ͍ͨͱࢥ͍ͬͯ· ͢ʂʂʂ
ࠓճհ͍ͨ͠Animation • Animated Vector Drawable • Physics-based animation • Lottie
Animated Vector Drawable
Vector Drawable • Support library API 21~ରԠ • svg(Scalable Vector
Graphics)ܗࣜʹࣅ͍ͯΔ ͷ
SVGܗࣜͱ? • xmlܗࣜͰهड़ • Bitmapσʔλ෦ͱ࠲ඪͰࢦఆ͞Εͨԁɾ ઢΛΈ߹ΘͤͨਤܗΛvectorσʔλ෦ ͱͯ͠ࢦఆͰ͖Δ ˠαΠζͷมߋʹͭΑ͍ʂʂʂ Source: https://ja.wikipedia.org/wiki/Scalable_Vector_Graphics
Pro • svgܗࣜͳͷͰը૾͕ߥ͘ͳͬͨΓ͠ͳ͍ • ApkαΠζΛݮΒͤΔ • Ұඳը͢Δͱcacheͯ͘͠ΕΔ
Con • pathॻ͘ͷ͕େม…? • ෳࡶͳͷΛඳը͗͢͠ΔͱಡΈࠐΈ͕͘ ͳͬͯ͠·͏
Vector Drawable
͜Μͳײ͡Ͱஔ͖·͢
ϑΝΠϧͷม • png->svg - มπʔϧ(http://www.autotracer.org/) • svg->vectorDrawable Vector Assets Studio༻(https://developer.android.com/
studio/write/vector-asset-studio.html?hl=ja) - Google Material Designͷ߹༻ҙ͞Ε͍ͯΔͷΛ ༻Ͱ͖·͢(https://material.io/icons/)
Animated Vector Drawable • Vector DrawableΛanimationͰ͖ΔΑ͏ʹ͠ ͨͷ
Animated Vector DrawableͰ Ͱ͖Δ͜ͱ • Rotation • Morph(ผͷܗʹม͑Δ) • Color,
position, sizeΛม͑Δ͜ͱ͕Ͱ͖Δ Source: https://dribbble.com/shots/1618281- Material-Design-Animation
1. //vd.xml <vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="64dp" android:width="64dp" android:viewportHeight="600" android:viewportWidth="600" > <group
android:name="rotationGroup" android:pivotX="300.0" android:pivotY="300.0" android:rotation="45.0" > <path android:name="vectorPath" android:fillColor="#000000" android:pathData="M300,70 l 0,-70 70,70 0,0 -70,70z" /> </group> </vector>
2. //avd.xml <animated-vector xmlns:android="http://schemas.android.com/apk/res/android" android:drawable="@drawable/vd" > <target android:name="rotationGroup" android:animation="@anim/rotation" />
<target android:name="vectorPath" android:animation="@anim/path_morph" /> </animated-vector>
3. //rotation.xml <objectAnimator android:duration="6000" android:propertyName="rotation" android:valueFrom="0" android:valueTo="360" /> //path_morph <set
xmlns:android="http://schemas.android.com/apk/res/android"> <objectAnimator android:duration="3000" android:propertyName="pathData" android:valueFrom="M300,70 l 0,-70 70,70 0,0 -70,70z" android:valueTo="M300,70 l 0,-70 70,0 0,140 -70,0 z" android:valueType="pathType"/> ɹ</set>
͜Μͳײ͡Ͱ·ͱΊΔ͜ͱ <animated-vector xmlns:android="http://schemas.android.com/apk/res/android" xmlns:aapt="http://schemas.android.com/aapt"> <aapt:attr name="android:drawable"> <vector android:width="24dp" android:height="24dp" android:viewportWidth="24"
android:viewportHeight="24"> <path android:name="root" android:strokeWidth="2" android:strokeLineCap="square" android:strokeColor="?android:colorControlNormal" android:pathData="M4.8,13.4 L9,17.6 M10.4,16.2 L19.6,7" /> </vector> </aapt:attr> <target android:name="root"> <aapt:attr name="android:animation"> <objectAnimator android:propertyName="pathData" android:valueFrom="M4.8,13.4 L9,17.6 M10.4,16.2 L19.6,7" android:valueTo="M6.4,6.4 L17.6,17.6 M6.4,17.6 L17.6,6.4" android:duration="300" android:interpolator="@android:interpolator/fast_out_slow_in" android:valueType="pathType" /> </aapt:attr> </target> </animated-vector>
xmlΛॻ͘ͷ͕େม…? • ShapeShifter(https://shapeshifter.design/) - svgͷಡΈࠐΈɾ(animated) vector drawable ͷॻ͖ग़͠
None
࣮ࡍʹVector DrawableͰॻ͔Ε͍ͯ Δͷ • plaid(https://github.com/nickbutcher/plaid) iconͷ෦ͳͲ͕Vector DrawableͰॻ͔Ε ͍ͯ·͢
Physics-based animation
Physics-based animation • ཧ๏ଇʹج͍ͮͨanimation
Physics-based animation • Natural-looking ΑΓϦΞϧλΠϜɾॊೈੑΛͬͨݟͨ • Course Correction λʔήοτ͕มΘͬͨ࣌ʹ؇͔ʹఀࢭ͢Δ •
Reduced visual janks ετϨεΛ༩͑ͳ͍animation
Non Physic vs Physics-based animation
Non Physic vs Physics-based animation
ؔ࿈class • Android.support.animation animationʹؔ͢ΔओཁͳAPI • DynamicAnimation physics-based animationͷϕʔεclass • SpringAnimation
DynamicAnimationͷsub-class. Spring animationΛ࡞ • SpringForce springʹؔ͢ΔϓϩύςΟΛఆٛ • FlingAnimation DynamicAnimationͷsub-class. fling animationΛ࡞
Fling Animation • User͕objectΛFlickͨ࣌͠ʹanimation͕ঃʑ ʹऴΘΔΑ͏ʹ͢Δ(ঃʑʹʹͳΔ)
࡞Γํ FlingAnimation fling = new FlingAnimation(view, DynamicAnimation.SCROLL_X); Fling.setStartVelocity(-velocityX) .setMinValue(0) .setMaxValue(maxScroll)
.setFriction(1.1f) .start();
ϓϩύςΟ • setStartVelocity() ॳظͷ(pixels per second) • setMin/MaxValue() Ͳ͜·Ͱscroll͢Δ͔ͷΛઃఆ •
setFriction() animationͷݮͷׂ߹Λఆٛ
SpringAnimation • dragͨ͠ڧ͞ͱࣅͨΑ͏ͳڧ͞ͰͱʹΖ͏ͱ͢Δ animationΛ࠶ݱ • Ͷͷڧ͞ʹΑͬͯanimationͷදݱ͞Ε͍ͯΔ • Ͷͷ߶ੑɾݮਰɾ࠷ऴతͳҐஔͷΧελϚΠζ͕ Մೳ
࡞Γํ final View img = findViewById(R.id.imageView); final SpringAnimation springAnim =
new SpringAnimation(img, DynamicAnimation.TRANSLATION_Y, 0); // springAnim.start()
ݮਰ(bounce) Anim.getSpring().setDampingRatio(DAMPING_RATIO_LOW _BOUNCE); High Bounce Medium Bounce Low Bounce No
Bounce
߶ੑ(stiffness) Anim.getSpring().setStiffness(STIFFNESS_LOW); High Stiffness Medium Stiffness Low Stiffness No Stiffness
Έ߹ΘͤΔͱ͜Μͳ͜ͱ…!
Lottie
Lottie
Lottie • ͜Μͳײ͡ͷ͓͠ΌΕͳanimation͕࡞Ε· ͢ʂ • iOS/Android/React Nativeڞ௨ • Adobe After
EffectͰ࡞ͬͨanimationΛΈ ࠐΉ͚ͩ
ࢀߟࢿྉ • αϯϓϧanimation(https://www.lottiefiles.com/) • ৄ͘͠(https://github.com/airbnb/lottie-android)
͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ