Android Coding Standered
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This document outlines coding standards and conventions for Android projects, including: 1. Variable naming conventions like prefixing non-public fields with "m" and static fields with "s". 2. XML and source file naming conventions such as using lowercase_underscore for resources and camelCase for classes. 3. Recommendations for drawable files, layout files, imports, class/package naming, limiting variable scope, indentation, constants, XML style rules and attribute ordering.
Android Coding Standered
- 2. Variable Naming convention 1. Non-public, non-static field names start with m. a. private int mPrivate; 2. Static field names start with s. a. private static MyClass sSingleton; 3. Other fields start with a lower case letter. a. int mPackagePrivate;
- 3. Xml / source naming 1. In XML - sepration by underscore a. Resources file names are written in lowercase_underscore. b. user_name 2. In Source - userName or mUserName
- 7. Class/Package naming Class Start with capital latter and camel case For classes that extend an Android component, the name of the class should end with the name of the component; ShippereApplication SignInActivity, SignInFragment, ImageUploaderService, ChangePasswordDialog. Package name
- 9. Donât ignore exception GOOD - Coding void setServerPort(String value) { try { serverPort = Integer.parseInt(value); } catch (NumberFormatException e) { } } BED - Coding try { someComplicatedSecurityFunction(); // may throw SecurityException // phew, made it all the way } catch (Exception e) { // I'll just catch all exceptions handleError(); // with one generic handler! }
- 10. Indentation 4 Space for Block if (x == 1) { x++; } 8 for line wrap Instrument i = someLongExpression(that, wouldNotFit, on, one, line);
- 11. Constants SharedPreference PREF_ Arguments ARGUMENT_ Extra EXTRA_ static final String PREF_EMAIL = "PREF_EMAIL";
- 14. Attribute Order Id Style Height / width Other layout attributes, sorted alphabetically
- 15. Thank you!! Contact Me Ravishankar Ahirwar - Android Developer Email : [email protected]