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kimkr/AndroidArchitecture

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Android-Architecture Guide Line

0. Project Setup

1) Keystore

save keystore.properties file in your root project.

storePassword=<store password>
keyPassword=<key password>
keyAlias=<key alias>
storeFile=<key file path>

2) RxJava2

1. Naming Guideline

1) Resources

Follow this rule : <What>_<Where>_<Description>_<Size/Color/State>

  • Where : The id of the view containing the resource. If it is used for multiple views, then Where should be all.

(1) Layout

<Where>_<Description>

ex) UserActivity - user.xml UserProfileFragment - user_profile.xml UserInfoFragment - user_info.xml UserProfileImageView - user_profile_image.xml UserInfoDetailFragment - user_info_detail.xml

(2) Strings

<Where>_<Description>

ex) 'confirm' - all_confirm 'Sign In' - signin_title 'Please enter email' - signin_emailhint

(3) Drawables

<Where>_<Description>_<Size/Color/State>

ex) all_ic_logo_red.png all_ic_logo_white.png all_ic_logo_small_white.png signin_btn_confirm.xml profile_btn_confirm_pressed.xml

Prefix Usage
ic Icon
btn Button

(4) IDs

<What>_<Where>_<Description>

Widget/View(Group) Prefix
LinearLayout ll
RelativeLayout rl
FrameLayout fl
ScrollView sv
RecyclerView rv
TextView tv
EditText et
Button btn
ImageView iv
ImageButton ibtn
ViewGroup vg
View v

(5) Dimensions

<What>_<Where>_<Description>

Prefix Usage
width width in dp
height height in dp
size if width == height
margin margin in dp
padding padding in dp
font font size in sp

(6) Colors

<Where>_<Transparency>_<Brightness>_<Hue>

Prefix Explanation
Transparency transparent
Brightness (ultra)light, original, (ultra)dark (3 types)
Hue red, orange, yellow, green, blue, navy, purple, black, white

ex) all_transparent_light_red

2) Java Classes

(1) Class member ordering

  • Constants
  • Fields
  • Constructors
  • Override methods (android lifecycle callbacks should be sequentially and consecutively)
  • Public methods
  • Private methods
  • Inner classes

(2) Constants

Usage Prefix
SharedPreferences PREF_
Bundle BUNDLE_
Fragment Arguments ARGUMENT_
Intent Extra EXTRA_
Intent Action ACTION_

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Lombok, Sqldelight, Retrofit, RxJava, Dagger2, AWS Cognito/S3, Glide, MVVM

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