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livedata 2

[Android] Jetpack - LiveData

์ž‘์„ฑ์ผ: 2019.07.01 LiveData๋ฅผ ํ”„๋กœ์ ํŠธ์— importํ•˜๋Š” ๋ฐฉ๋ฒ•์€ ํ”„๋กœ์ ํŠธ์— ์ปดํฌ๋„ŒํŠธ ์ถ”๊ฐ€ํ•˜๊ธฐ ์ฐธ๊ณ  LiveData Observable Data Holder Class Lifecycle-aware Activity, Fragment, Service ๊ฐ™์€ ์•ฑ ์ปดํฌ๋„ŒํŠธ์˜ Lifecycle๊ณผ ์—ฐ๊ด€ ํ™œ์„ฑํ™”(active) ์ƒํƒœ(STARTED ๋˜๋Š” RESUMED)์ธ Observer์—๊ฒŒ๋งŒ ์—…๋ฐ์ดํŠธ๋ฅผ ์•Œ๋ฆผ LifecycleOwner์˜ Lifecycle์ด DESTROYED ์ƒํƒœ๊ฐ€ ๋˜๋ฉด Observer๋ฅผ ์ œ๊ฑฐ leak์— ๋Œ€ํ•œ ๊ฑฑ์ •์—†์ด ์•ˆ์ „ํ•˜๊ฒŒ LiveData๋ฅผ observe ๊ฐ€๋Šฅ Activity์™€ Fragment์—์„œ ํŠนํžˆ ์œ ์šฉ LiveData ์‚ฌ์šฉ๋ฒ•์— ๋Œ€ํ•œ ๋” ๋งŽ์€ ์ •๋ณด๋Š” Work with LiveData o..

[Android] Live Data

์ž‘์„ฑ์ผ: 2017.07.09 LiveData ๋Š” ๊ฐ’์„ ์œ ์ง€ํ•˜๊ณ , ์ด ๊ฐ’์ด observed ์ƒํƒœ๋ฅผ ๊ฐ–๊ฒŒ ํ•ด์ฃผ๋Š” data holder ํด๋ž˜์Šค์ด๋‹ค. ์ผ๋ฐ˜์ ์ธ Observerble๊ณผ ๋‹ฌ๋ฆฌ LiveData๋Š” ์•ฑ ์ปดํฌ๋„ŒํŠธ์˜ ๋ผ์ดํ”„ ์‚ฌ์ดํด์„ ๋”ฐ๋ฅธ๋‹ค. LiveData๋ฅผ ์•ˆ๋“œ๋กœ์ด๋“œ ํ”„๋กœ์ ํŠธ์— importํ•˜๋Š” ๋ฐฉ๋ฒ•์€ adding components to your project LiveData๋Š” Observer์˜ ๋ผ์ดํ”„ ์‚ฌ์ดํด์ด STARTED ๋˜๋Š” RESUMED ์ƒํƒœ์ผ ๋•Œ๋งŒ Observer๋ฅผ ํ™œ์„ฑํ™” ์ƒํƒœ๋กœ ์—ฌ๊ธด๋‹ค. Location Sample public class LocationLiveData extends LiveData { private LocationManager locationManager; private Simp..