Implements host-based ad-blocking by downloading and parsing the StevenBlack host list. Provides efficient lookup to determine if a hostname should be blocked. Demonstrates a self-contained pattern for network-level filtering that could be extracted to any Android application needing domain blocking functionality. Features include automatic updates, caching, and error handling.

Manages cookie banner blocking using Mozilla's official rule list. Follows the same pattern as AdBlock but applies to DOM elements rather than network requests. Demonstrates a reusable pattern for rule-based content filtering that could be adapted for other content blocking needs. Includes functionality to download, parse, and apply CSS selectors to hide unwanted elements.

Manages JavaScript enable/disable preferences on a per-domain basis using SharedPreferences. Provides a clean abstraction for storing and retrieving boolean preferences keyed by host. This pattern is replicated for DOM and Cookie management, demonstrating a consistent approach to granular feature controls. The component is highly decoupled and could be extracted for any application needing per-domain feature toggles.

Handles complete backup and restore of application data including databases, shared preferences, and bookmarks. Implements ZIP compression for efficient storage and provides both full backup and selective restore capabilities. Demonstrates robust file handling, proper error management, and Android storage best practices. This self-contained utility could be reused in any Android application requiring backup/restore functionality.