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
Offline mode in Android apps
Search
Jerzy Chalupski
December 07, 2013
Programming
4
1.2k
Offline mode in Android apps
The talk I gave on KrakDroid 2013 conference.
Jerzy Chalupski
December 07, 2013
Tweet
Share
More Decks by Jerzy Chalupski
See All by Jerzy Chalupski
Rx
chalup
19
680
ProGuard
chalup
10
960
Data model on Android
chalup
9
3.6k
Other Decks in Programming
See All in Programming
CSC307 Lecture 06
javiergs
PRO
0
360
Cloudflare Workers x AWS Lambdaの組み合わせユースケース / Cloudflare Workers x AWS Lambda Combination Use Case
seike460
PRO
2
310
CSC307 Lecture 13
javiergs
PRO
0
150
DDDを志して3年経ったら「DDDの皮を被ったクリーンアーキテクチャ」になった話【デブサミ2024夏】
texmeijin
1
620
Android開発者のための Kotlin Multiplatform入門
ntaro
0
190
Findy - エンジニア向け会社紹介 / Findy Letter for Engineers
findyinc
2
81k
「2024年版 Kotlin サーバーサイドプログラミング実践開発」の補講 〜O/Rマッパー編〜
n_takehata
2
260
CSC307 Lecture 12
javiergs
PRO
0
220
生成AIをkintoneに連携してみた
hideg
0
230
最近追加した型の紹介とその振り返り
aki19035vc
0
170
Temporalを取り巻く仕様を整理する
sajikix
0
110
Google's Recipe for Scaling (Web) Security – LocoMocoSec 2024
lweichselbaum
0
170
Featured
See All Featured
Building an army of robots
kneath
301
42k
Bootstrapping a Software Product
garrettdimon
PRO
304
110k
Automating Front-end Workflow
addyosmani
1362
200k
Building Adaptive Systems
keathley
34
2k
Unsuck your backbone
ammeep
666
57k
Statistics for Hackers
jakevdp
792
220k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
24
1.8k
Navigating Team Friction
lara
181
13k
Visualization
eitanlees
139
14k
How STYLIGHT went responsive
nonsquared
93
5k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
245
1.2M
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
23
1.9k
Transcript
! Jerzy Chalupski chalup, futuresimple "
[email protected]
Offline mode in
Android apps Base CRM http://porcupineprogrammer.blogspot.com/ #
WHAT WHY HOW
WHAT is offline mode?
What happens when you send and email from Gmail app?
What happens if your connection is down?
What happens if your connection is down?
None
RECAP Offline mode = fully functional app without connection
WHY should I bother?
Life is too short to worry about the internet connection.
I had to watch the animated circle for 2 seconds.
They want to post the photos of their dinner on
Instagram! People want to DO THINGS!
SLOOOOOOW TIMEOUTS RETRYS NETWORK ERRORS HANDLING LIT SCREEN DATA PLAN
USAGE
ˑˑˑˑ˒ “Unbearably sloooooow.”
ˑˑˑˑ˒ “Drains my battery.”
ˑˑˑˑ˒ “Crashes all the time.”
None
RECAP BETTER UX
RECAP BETTER UX BETTER BATTERY LIFE
RECAP BETTER UX BETTER BATTERY LIFE BETTER CODE
RECAP BETTER UX BETTER BATTERY LIFE BETTER CODE
HOW do I implement it?
UI Http Client
UI Http Client SLOW FLAKY
UI Http Client SLOW FLAKY CACHE ALL THE THINGS!
Http Client SLOW FLAKY Storage FAST RELIABLE UI
Storage Http Client SLOW FLAKY UI FAST RELIABLE GET
Http Client SLOW FLAKY Storage FAST RELIABLE UI GET POST
Sync Service Http Client UI Storage GET POST
AbstractThreadedSyncAdapter Http Client UI ContentProvider SQLite DB CursorLoader
Sync Service Http Client UI Storage
Sync Service Http Client UI Storage
Sync Service Http Client UI Storage
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE 250k items?
BACKEND MOBILE ?
BACKEND MOBILE
BACKEND MOBILE
BACKEND MOBILE OFFLINE MODE = DATA MIGRATIONS
As pleasant as data migrations with SQLiteOpenHelper.
BACKEND MOBILE 1 2 1 2
BACKEND MOBILE 1 2 1 2 3
BACKEND MOBILE 1 2 1 2 3 3
BACKEND MOBILE 1 2 1 2 3 3 3
BACKEND MOBILE 1 2 1 2 3 3 3
BACKEND MOBILE 1A 2B 1 2
BACKEND MOBILE 1A 2B 1 2 3
BACKEND MOBILE 1A 2B 1 2 3 C
BACKEND MOBILE 1A 2B 1 2 3 C C
BACKEND MOBILE 1A 2B 1 2 3 C 4C C
BACKEND MOBILE 1A 2B 1 2 3 C 4 3
4C
BACKEND MOBILE 1A 2B 1 2 3 4 3 4C
BACKEND MOBILE 1A 2B 1 2 3 4 3D 4C
BACKEND MOBILE 1A 2B 1 2 2 3C 3
BACKEND MOBILE 1A 2B 1 2 2 2 3C 3
BACKEND MOBILE 1A 2B 1 2 2 D 2 3C
3 ?
BACKEND MOBILE 1A 2B 1 2 2 D 2 3C
3 D
BACKEND MOBILE 1A 2B 1 2 2 D 2 3C
3 D
BACKEND MOBILE 1A 2B 1 2 2 D 2 3C
3 D
BACKEND MOBILE 1A 2B 1 2 2 D 2 3C
3 D D
BACKEND MOBILE 1A 2B 1 2 2 D 2 3C
3 D 4D D
BACKEND MOBILE 1A 2B 1 2 2 D 2 3C
3 D 4D 4D
4D BACKEND MOBILE 1A 2B 1 2 2 2 3C
3 D 4
4D BACKEND MOBILE 1A 2B 1 2 2 2 3C
3 4 4
4D BACKEND MOBILE 1A 2B 1 2 2 2 3C
3 4 4
“My friend, you’re entering a world of pain” WALTER SOBCHAK
UUID
RECAP OFFLINE MODE = MIGRATIONS
RECAP UUID OR WORLD OF PAIN OFFLINE MODE = MIGRATIONS
Sync Service Http Client UI Storage
Sync Service Http Client UI Storage
“For every complex problem there is an answer that is
clear, simple and wrong.” HENRY LOUIS MENCKEN
Sync Service Http Client UI Storage CONFLICTS
Sync Service Http Client UI Storage CONFLICTS DUPLICATES
Sync Service Http Client UI Storage CONFLICTS HANDLING LARGE DATA
SETS DUPLICATES
Sync Service Http Client UI Storage CONFLICTS HANDLING LARGE DATA
SETS DUPLICATES BATTERY USAGE
None
!futuresimple chalup
?
Thanks.