Android Native Platform APIs References : keystore-biometric.md for Keystore (KeyGenParameterSpec, StrongBox, attestation), BiometricPrompt with crypto object binding, EncryptedSharedPreferences, certificate pinning. nfc-services.md for NFC (NDEF reading/writing, HCE for payment-style apps), Foreground Services, WorkManager. Deep Knowledge : Use with technology: . Activity Lifecycle (Modern) Key callbacks (rarely overridden in Compose-first apps): - — initial setup - / — visible/invisible - / — focused/unfocused - — final cleanup - — survive process death For Compose: prefer , over manual lif…