Concepts

Step-by-step guide to Address Book concepts in Unity mobile games

How Address Book Works

The Essential Kit Address Book module provides a unified cross-platform API that abstracts the complexity of iOS and Android contact access. The architecture follows a simple request-response pattern with callback-based operations.

Unity Game Layer
       ↓
Essential Kit Address Book API
       ↓
Platform Abstraction Layer
    ↙         ↘
iOS Contacts    Android Contacts
Framework       Provider

Essential Kit's Address Book provides Unity cross-platform development advantages:

• Unified Permission Model: Single API handles both iOS privacy permissions and Android runtime permissions

• Consistent Data Structure: Contact properties are standardized across platforms

• Automatic Framework Integration: No manual native SDK integration required

• Built-in Error Handling: Platform-specific errors abstracted into common error types

Tutorial Progression

This section covers core Address Book concepts in logical progression. Each concept builds on the previous one:

📌 Video Note: Use visual overview diagram showing the flow from Unity → Essential Kit → Native platforms.

Contacts PermissionsReading ContactsContact ConstraintsContact PropertiesAdvanced Usage