Android Localization (Java)

Instructions

Every user-visible string must be a resource. Code that concatenates localized fragments is almost always wrong.

1. strings.xml Variants

res/
├── values/strings.xml        // default (usually en)
├── values-es/strings.xml     // Spanish
├── values-fr/strings.xml     // French
├── values-de/strings.xml     // German
└── values-ar/strings.xml     // Arabic (RTL)

Keep keys descriptive, not content-shaped (cta_sign_in, not button_text). Put translator context in comments: