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
What The Context ?
Search
Adnan A M
April 11, 2020
Programming
2
200
What The Context ?
Slides from my talk at BLRDroid
Adnan A M
April 11, 2020
Tweet
Share
More Decks by Adnan A M
See All by Adnan A M
Abridge Coding Guidelines
adnan321
0
35
A developer's guide to wealth
adnan321
0
240
What the Hook ?
adnan321
0
72
Scoping Your Storage
adnan321
2
140
Putting Work Manager To Work
adnan321
0
92
OOP To FP
adnan321
1
190
Putting Work Manager To Work
adnan321
1
140
A slice of Android Slices - droidcon London 2018
adnan321
0
97
Having fun with Kotlin fun()
adnan321
0
87
Other Decks in Programming
See All in Programming
Streams APIとTCPフロー制御 / Web Streams API and TCP flow control
tasshi
2
340
Content Security Policy入門 セキュリティ設定と 違反レポートのはじめ方 / Introduction to Content Security Policy Getting Started with Security Configuration and Violation Reporting
uskey512
1
480
From Subtype Polymorphism To Typeclass-based Ad hoc Polymorphism- An Example
philipschwarz
PRO
0
190
とにかくAWS GameDay!AWSは世界の共通言語! / Anyway, AWS GameDay! AWS is the world's lingua franca!
seike460
PRO
1
770
C++でシェーダを書く
fadis
6
3.9k
約9000個の自動テストの 時間を50分->10分に短縮 Flakyテストを1%以下に抑えた話
hatsu38
24
12k
受け取る人から提供する人になるということ
little_rubyist
0
180
macOS でできる リアルタイム動画像処理
biacco42
9
2.3k
EventSourcingの理想と現実
wenas
6
2.2k
Identifying User Idenity
moro
6
9.4k
PLoP 2024: The evolution of the microservice architecture pattern language
cer
PRO
0
2.3k
What’s New in Compose Multiplatform - A Live Tour (droidcon London 2024)
zsmb
1
440
Featured
See All Featured
Producing Creativity
orderedlist
PRO
341
39k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
chriscoyier
505
140k
Stop Working from a Prison Cell
hatefulcrawdad
267
20k
The Illustrated Children's Guide to Kubernetes
chrisshort
48
48k
Fireside Chat
paigeccino
33
3k
jQuery: Nuts, Bolts and Bling
dougneiner
61
7.5k
Side Projects
sachag
452
42k
10 Git Anti Patterns You Should be Aware of
lemiorhan
654
59k
The World Runs on Bad Software
bkeepers
PRO
65
11k
Fantastic passwords and where to find them - at NoRuKo
philnash
50
2.9k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
665
120k
Fashionably flexible responsive web design (full day workshop)
malarkey
404
65k
Transcript
W at he on ex B d 1
Context ?!?? C nt xt s ur m gi !
— Adnan A M B d 2
W y o n ed on ex ? ✴ g
u () ✴ g t () ✴ g e c () ✴ g () ✴ s X() -> S n c n (A y, S , B s e ) B d 3
Types of Context ✴ A t C ✴ A y
C ✴ B C ✴ T C ✴ t ✴ t B d 4
A tu l yp s f on ex ✴ U
C ✴ N -U C B d 5
Understanding the Hierarchy Context | Context Wrapper +-----------+---------+ | |
| Application Service ContextThemeWrapper | Activity B d 6
Understanding the Hierarchy ✴ C /C W ---> o C
✴ C T a -> C = C + T B d 7
UI Context Context + Your Theme B d 8
UI Context ✴ A y - i (I e a
y) ✴ F t - g e () ✴ V - g e () B d 9
Non UI Context ✴ A y - g i C
() ✴ S - g i C () / i (I e s ) ✴ C - g i C () ✴ B s R r - C p B d 10
Does it Matter ? My functionality works fine with either
\0/ B d 11
Which Context to Use ? B d 12
Application Context ✴ S o I e w h m
p ✴ g i C () ✴ N C (L L ) B d 13
Activity/Service Context ✴ U I e e a y/s ✴
t ✴ A y C - C ✴ S C - o C B d 14
Broadcast Receiver Context ✴ U I e e c ✴
c p a t ✴ N C ✴ Y e a R r c t w a r r e () n b v () d d B d 15
Base Context ✴ T d e i n h C
✴ C e l c ✴ C o d u a a e () h C W B d 16
getContext() It Depends \0/ B d 17
What #1 !!! ??? val intent = Intent(this, TestActivity::class.java) applicationContext.startActivity(intent)
B d 18
What #2 !!! ??? class SimpleSingleton { private static SimpleSingleton
sInstance; private Context mContext; public static SimpleSingleton getInstance(Context context) { if (sInstance == null) { sInstance = new SimpleSingleton(context); } return sInstance; } private SimpleSingleton(Context context) { mContext = context; } } B d 19
What #3 !!! ??? LayoutInflater.from(applicationContext).inflate( R.layout.progress_bar, parent, false ) B
d 20
Oh Wow #1 !!! val contextThemeWrapper = ContextThemeWrapper(this, R.style.YOUR_THEME) val
builder = AlertDialog.Builder(contextThemeWrapper) builder.show() B d 21
Sidenote val contextThemeWrapper = ContextThemeWrapper(this, R.style.YOUR_THEME) getBaseContext() ---> Returns instance
of this B d 22
Oh Wow #2 !!! val configuration = resources.configuration configuration.setLocale(your_custom_locale) context
= createConfigurationContext(configuration) B d 23
Oh Wow #3 !!! LayoutInflater.from(applicationContext).inflate( R.layout.progress_bar, parent, false ) B
d 24
Deciding Between UI & Non UI Context ✴ D o
e a r s ? --> C ✴ L L o O o --> o C ✴ N r ? --> B t o C B d 25
References ✴ W C S I s - l M
a ✴ M n A C - G K ✴ C , a C - v S B d 26
T an Y u ! B d 27