Android naming rules

Xml: (all in lower case)

Layout: lAyout _ Module name (package name's last folder name) _ component name (Class Name removes four major component names: for example, MainActivity is main)

View:View _ parent layout component name (layout name) _ component name (all components)

Color. xml:Module name (package name's last folder name) _ Class Name (except four major component names: for example, MainActivity is main) _ component name (all components )_

Color name (English color)

Strings. xml:Module name (package name's last folder name) _ component name (all components) _ Class Name (except four major component names: for example, MainActivity is

Main) _ string name (meaning of the character to be reflected)

...

All follow this structure: module name_class name (except four major component names: for example, MainActivity is main) _ component name (all components) _ (size, color, String, etc.

(Lower case)

Class:

Main module class name:Module name (the last folder Name of the package name, in upper case) + Activity

Sub-module class name (called by the main module, under the same package ):Function name or child component name (child component: for example, one window or one component) + Activity (or

Four major components)

Tool class (Module name + Util ):For example,

Json Conversion Tool: JsonUtil

Database Connection Tool: DBUtil

Service class (Module name + Service): for example,

Variables in class:

Xml component (corresponding to the component id ):Component name (Example 1, 2) _ function name or description name (all lowercase letters indicate an xml component)

Example 1: (if the component has more than two upper-case letters, use the lower-case letters corresponding to the upper-case letters ):

EditText: et_longdistance, et_radius

TextView: TV _longdistance, TV _radius

SharedPreferences: sp_num

Example 2: (if the component has only one uppercase letter, it uses a fixed name, as shown below ):

Button: btn_true

Set Name:

ArrayList (function name or description name + List): personList

HashMap (function name or description name + Map): personMap

SortedSet (feature name or description name + Set): personSet

Array (description or function name + Array): jsonArray

String: jsonString

Temporary variable name (use as few as possible): I, j, m, n,

Constant:Adjective _ noun... (all uppercase)

Methods In class:

Verb + noun [And (conjunction) + Verb + noun] (uppercase letters of each word)