2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov lus teb luv luv rau lo lus nug no yog: Yes. Tsab ntawv xov xwm no nthuav tawm Java ntshiab kev siv ntawm coroutines, muaj raws li Qhib Qhov Chaw ntawm GitHub hauv qab Apache 2.0 daim ntawv tso cai. Nws siv cov yam ntxwv muaj txij li Java 8 los ua cov lus tshaj tawm thiab ua tiav ntawm coroutines yooj yim li sai tau.
Can coroutines siv tau hauv Java?
A coroutine yog tus qauv tsim qauv uas koj tuaj yeem siv ntawm Android kom yooj yim cov cai uas ua tiav asynchronously. Coroutines tau ntxiv rau Kotlin hauv version 1.3 thiab ua raws cov ntsiab lus tsim los ntawm lwm hom lus.
Dab tsi yog qhov txawv ntawm coroutines thiab RxJava?
RxJava siv tau nrog txhua yam lus Java-tshaj, whereas Kotlin coroutines tsuas yog sau rau hauv Kotlin. Qhov no tsis yog ib qho kev txhawj xeeb rau Trello Android, raws li peb muaj tag nrho ntawm Kotlin, tab sis tuaj yeem muaj kev txhawj xeeb rau lwm tus. … Ib lub tsev qiv ntawv tuaj yeem siv cov coroutines sab hauv tab sis nthuav tawm Java API ib txwm rau cov neeg siv khoom.)
Thaum twg kuv yuav tsum siv coroutines?
Siv rooj plaub: coroutines feem ntau siv hauv kev ua si hauv kev ua si rau lub sij hawm-slice xam. Txhawm rau tswj hwm tus nqi sib xws hauv kev ua si, piv txwv li, 60 fps, koj muaj txog 16.6ms los ua cov lej hauv txhua tus ncej. Uas suav nrog physics simulation, input processing, drawing/painting. Cia hais tias koj txoj kev raug ua tiav hauv txhua tus ncej.
Koj siv coroutines li cas hauv kev ua si?
Ib txwm tso coroutines ntawm UI txheej ntawm kojapp (ViewModel, Activity, lossis Fragment) thiab khi lawv rau nws lub neej voj voog los ntawm kev siv qhov tsim nyog CoroutineScope.
✅ Ib qho zoo dua solution
- ViewModel. Thaum tso tawm coroutines los ntawm ViewModel koj tuaj yeem siv viewModelScope viewModelScope.launch { …
- Kev ua. …
- Fragment. …
- App-wide Coroutines.
Pom zoo:
Peb puas tuaj yeem siv hashmap nyob rau hauv ib puag ncig sib txuas?
Dab tsi yog qhov siv HashMap hauv ib puag ncig sib txuas? … Nws yog ib qho teeb meem yog tias ntau cov xov ntxiv rau tib yam HashMap yam tsis muajnws raug synchronized. Txawm hais tias tsuas yog 1 xov hloov kho HashMap thiab lwm cov xov tau nyeem los ntawm tib daim ntawv qhia tsis muaj synchronization, koj yuav khiav mus rau qhov teeb meem.
Peb puas tuaj yeem siv tus cursors hauv kev ua haujlwm?
Siv Cursor Lub luag haujlwm tseem ceeb ntawm tus cursor yog txhawm rau khaws cov ntaub ntawv, ib kab ntawm ib zaug, los ntawm qhov tshwm sim, tsis zoo li SQL cov lus txib uas ua haujlwm ntawm txhua kab. nyob rau hauv qhov tshwm sim tau teem rau ib lub sij hawm.
Puas tuaj yeem nce thiab dhau qhov chaw nres tsheb tuaj yeem siv tau?
Up thiab tshaj (retractable) Feem ntau suav hais tias hom chaw nres tsheb yooj yim tshaj plaws rau automate, thiab kuj yog tus nqi zoo tshaj plaws, ib yam nkaus. Txhawm rau ua kom lub qhov rooj no ua haujlwm tau zoo, lub boom raug teeb tsa saum toj ntawm cov qauv qhib thiab, ntawm qhov kawg, lub tshuab hluav taws xob tau teeb tsa.
Peb puas tuaj yeem siv txoj hauv kev tsis txaus ntseeg hauv java?
Koj tseem tuaj yeem siv cov cai tsis raug cai yam tsis tau hloov pauv, tab sis tag nrho cov ntsiab lus ntawm deprecating ib txoj kev / chav kawm yog qhia rau cov neeg siv paub tias tam sim no muaj txoj hauv kev zoo dua ntawm kev siv nws, thiab hais tias yav tom ntej tso tawm cov cai tsis txaus siab yuav raug tshem tawm.
Peb puas tuaj yeem siv lub cim teb chaws hauv Is Nrias teb?
Kev txwv tsis pub . Tsis muaj leej twg siv tau lub cimlossis lwm yam kev coj ua los tsim kom muaj kev xav tias nws cuam tshuam nrog lossis ib daim ntawv pov thawj ntawm Tsoom Fwv Tswj Hwm lossis Lub Xeev, raws li rooj plaub, tsis tau kev tso cai los ntawm tsoom fwv tsim nyog.
