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
Google I/O 2018’s Extensions🦔
Search
Hunachi
September 20, 2018
Technology
1
2.4k
Google I/O 2018’s Extensions🦔
Kotlin大好き!Kotlin愛好会 vol4で発表しました.
是非Googleさんを参考にしましょう!
Hunachi
September 20, 2018
Tweet
Share
More Decks by Hunachi
See All by Hunachi
PDF Viewer作成の今までとこれから
hunachi
0
450
Google Play ポリシー対応周りの整理/改善をしてみた
hunachi
0
340
レビューダイアログ機能の取り組みAndroid編 / Review Dialog for Android
hunachi
0
1.2k
Git Hands On for my lab.
hunachi
0
97
ML Kitはいいぞ!
hunachi
0
850
Paging Library は便利だぞ!
hunachi
1
440
Androidについて.
hunachi
0
110
Other Decks in Technology
See All in Technology
DuckDB雑紹介(1.1対応版)@DuckDB座談会
ktz
6
1.4k
可視化により内部品質をあげるAIドキュメントリバース/20240910 Hiromitsu Akiba
shift_evolve
0
220
【株式会社ELYZA】|GENIAC成果報告会 自社開発モデルプレゼンテーション
elyza
1
120
事前準備が肝!AI活用のための業務改革
layerx
PRO
1
380
テスト”ケース”駆動開発 で手戻りをなくそう
ryohma0510
0
310
DevRelの始め方
moongift
PRO
1
390
「自動テストのプラクティスを効果的に学ぶためのカードゲーム」 ( #sqip2024 )
teyamagu
PRO
2
180
AWS SAW を広めたい @四国クラウドお遍路
kazzpapa3
0
230
ついに出た!OpenAIの最新モデル「o1」って何がすごいの?
minorun365
PRO
3
900
o1のAPIで実験してみたが 制限きつすぎて辛かった話
pharma_x_tech
0
170
なぜクラウドサービスで Web コンソールを提供するのか
shuta13
4
2k
サーバー管理しないサーバーサービスManaged DevOps Pool
kkamegawa
0
130
Featured
See All Featured
YesSQL, Process and Tooling at Scale
rocio
167
14k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
663
120k
ParisWeb 2013: Learning to Love: Crash Course in Emotional UX Design
dotmariusz
109
6.9k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
131
32k
Making Projects Easy
brettharned
113
5.8k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
326
21k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
29
2.6k
Rebuilding a faster, lazier Slack
samanthasiow
78
8.6k
The Mythical Team-Month
searls
218
43k
Pencils Down: Stop Designing & Start Developing
hursman
119
11k
Sharpening the Axe: The Primacy of Toolmaking
bcantrill
36
1.7k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
123
18k
Transcript
ˏ)VOBDIJ ,PUMJOѪձWPM (PPHMF*0`T &YUFOTJPOT
ࣗݾհ ;ͳͪ ߴઐੜ (JU)VC!)VOBDIJ 5XJUUFS!@IVOBDIJ ,PUMJOΛॻ͖࢝Ί͔ͯΒϓϩάϥϛϯά͕͖ʹͳͬͨɽ ࠓ8BOUFEMZ*OD͞ΜͷݩͰΠϯλʔϯதͰ͢ʗʢ,PUMJOಋೖ͠·ͨ͠ʣ
$PEFɿIUUQTHJUIVCDPNHPPHMFJPTDIFE 0⒏DJBM#MPHɿIUUQTNFEJVNDPNBOESPJEEFWFMPQFSTHPPHMFJPBQQ BSDIJUFDUVSFBOEUFTUJOHGFGDFC (PPHMF*0BQQ
w ,PUMJO w ࠓྫΑΓσεϚͯ͠ͳͦ͞͏ ʢ$POUSJCVUJPO͚ͩͰݴ͑ͳ͍͔ ͚ͩͲʣ
6TFE5PPMBOE-JCSBSZ w 'JSF4UPSFɼ'JSF#BTF"VUIFOUJDBUJPO w "OESPJEY w %BHHFSɼ5JNCFSɼ(TPOɼ5ISFF5FOɼ$SBTIMZUJDTɼ(MJEFɼ&TQSFTTPɼ .PDLJUPɼ+6OJUɼMFBLDBOBSZɽ
"SDIJUFDUVSF w $MFBO"SDIJUFDUVSF w 1SFTFOUBUJPOɿ7JFXˍ7JFX.PEFM w %PNBJOɿ6TF$BTF w %BUBɿ3FQPTJUPSZ 6TFS.BOBHFS
w .77.
None
&YUFOTJPOT /PUBMM FYUFOTJPOTPG NZGBWPSJUF
// Listͱ͔ͰView͕ΨλϯͬͯͳͬͨΓ͢ΔͷΛ͙༻ɽ inline fun <T : ViewDataBinding> T.executeAfter(block: T.() ->Unit){
block() // ͙͢ʹbinding͍ͤͨ࣌͞ʹ͏ɽ executePendingBindings() } // ༻ྫ binding.executeAfter { //͜͜Ͱbind͢Δɽ event = item } ᶃ
// TransitionΛԆͤ͞Δ fun Activity.postponeEnterTransition(timeout: Long) { postponeEnterTransition() window.decorView.postDelayed(timeout) { startPostponedEnterTransition()
} } // ༻ྫ activity?.postponeEnterTransition(500L) ᶄ
// ॳظԽɼࢀর͕ৗʹγϯάϧεϨουͰ͔͠ߦΘΕͳ͍࣌༻ɽ fun <T> lazyFast(operation: () -> T): Lazy<T> =
lazy(LazyThreadSafetyMode.NONE) { operation() } // SYNCRONIZED: σϑΥϧτɽ୯ҰεϨου͔ΒͷॳظԽͰɼෳεϨου͔Βͷࢀর͕Մೳɽ // PUBLICATION: ෳεϨου͔ΒॳظԽ͠Α͏ͱ͢Δࣄ͕Մೳɽ // ༻ྫ private val day: Int by lazyFast { val args = arguments ?: throw IllegalStateException("Missing arguments!") args.getInt(ARG_INT) } ᶅ
inline fun <reified VM : ViewModel> FragmentActivity.viewModelProvider( provider: ViewModelProvider.Factory )
= ViewModelProviders.of(this, provider).get(VM::class.java) // ༻ྫ // Before val viewModel: HogeViewModel = ViewModelProviders.of(this, viewModelFactory) .get(HogeViewModel::class.java) //After val viewModel: HogeViewModel = viewModelProvider(viewModelFactory) ᶆ
fun ViewGroup.inflate( @LayoutRes layout: Int, attachToRoot: Boolean = false ):
View { return LayoutInflater.from(context) .inflate(layout, this, attachToRoot) } // ༻ྫ … Holder( parent.inflate(VIEW_TYPE_HEADING, false) ) ᶇ
inline fun FragmentManager.inTransaction( func: FragmentTransaction.() -> FragmentTransaction ) { beginTransaction().func().commit()
} // ༻ྫ supportFragmentManager.inTransaction { add(FRAGMENT_ID, fragment) } ᶈ
// enumΫϥεΛbundleʹೖΕΕΔܗʹ͢Δ fun <T : Enum<T>> Bundle.putEnum(key: String, value: T)
= putString(key, value.name) // ↑ͰೖΕͨenumΫϥεΛऔΓग़͢ inline fun <reified T : Enum<T>> Bundle.getEnum(key: String): T = enumValueOf(getString(key)) // ParcelʹbooleanΛॻ͖ࠐΉ fun Parcel.writeBoolean(value: Boolean) = writeInt(if (value) 1 else 0) // ↑Ͱมͨ͠booleanΛಡΈࠐΉ fun Parcel.readBoolean() = readInt() != 0 ᶉ
// ༻ྫ // ಡΈ͍͢ʂ pacel.apply { writeInt(state) writeInt(peekHeight) writeBoolean(isFitToContents) writeBoolean(isHideable)
writeBoolean(skipCollapsed) writeBoolean(isDraggable) }
fun <T> MutableLiveData<T>.setValueIfNew(newValue: T) { if (this.value != newValue) value
= newValue } fun <T> MutableLiveData<T>.postValueIfNew(newValue: T) { if (this.value != newValue) postValue(newValue) } // ObserverଆͰఆͨ͠ํ͕҆શͳؾ͕͢Δ͚ͲͲ͏ͳΜͩΖ͏ɽɽ ᶊ
fun <X, Y> LiveData<X>.map(body: (X) -> Y): LiveData<Y> { return
Transformations.map(this, body) } fun <X, Y> LiveData<X>.switchMap(body: (X) -> LiveData<Y>): LiveData<Y> { return Transformations.switchMap(this, body) } ᶋ
// ༻ྫ liveData = parentLiveData.map { (it as? Result.Success)?.data?: 0
} liveData = parentLiveData.switchMap { if(value == null) dataLiveData else parentLiveData } // ࠷ॳ֦ுؔͬͯࣄʹؾ͔ͮͣɼڻ͍ͨɽ
val <T> T.checkAllMatched: T get() = this // ༻ྫ //
OK when (sealed) { ONE -> {…} TWO -> {…} }.checkAllMatch // error when (sealed) { ONE -> {…} //TWO -> {…} }.checkAllMatch ᶌ
w ஸೡʂ ͜ͷ࣮७ਮʹ಄ ͍͍ͱࢥ͏ɽ
5IBOLZPV ,PUMJOՄѪ͍ʂ