O AndroidManifest.xml é um arquivo de configuração essencial que declara os componentes, permissões e metadados de um app ao sistema Android. Cada app Android possui um, e o SO o lê para entender a estrutura e os requisitos do app.
O que o manifest declara
The AndroidManifest.xml tells the Android system about the app:
→ COMPONENTS — declares activities, services, broadcast receivers, content providers
(components must be declared here to be usable)
→ PERMISSIONS — what the app needs (internet, camera, location, etc.)
→ app METADATA — package name, app icon, label, theme, min/target SDK versions
→ INTENT FILTERS — what intents components can respond to (e.g. the launcher activity)
→ hardware/software FEATURES required; other configuration
