DeviceIdentifier

```
public class DeviceIdentifier

                    
```
Generates and maintains a unique UUID for the device, stored in SharedPreferences (persists across app updates but cleared on app deletion). The UUID is generated once on first SDK init and reused for all subsequent sessions.
Thread-safe: synchronized access with in-memory caching for fast lookups.
Mirrors DeviceIdentifier.swift on iOS (UserDefaults-backed there).

Field Summary

Fields
Modifier and Type	Field	Description
`public final static DeviceIdentifier`	`INSTANCE`

Method Summary

Modifier and Type	Method	Description
`final Unit`	`init(Context context)`	Initialise with an application Context.
`final String`	`getOrCreateUUID()`	Returns the persistent UUID, generating and storing one on first call.
`final Unit`	`reset()`	Forget the current UUID and remove it from persistent storage.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - init
```
 final Unit init(Context context)
```
    Initialise with an application Context. Safe to call multiple times. Triggers a one-time generation if no UUID is stored yet.
  - getOrCreateUUID
```
 final String getOrCreateUUID()
```
    Returns the persistent UUID, generating and storing one on first call. Falls back to a transient (non-persisted) UUID only if init(context) has not been called yet — callers should init early.
  - reset
```
 final Unit reset()
```
    Forget the current UUID and remove it from persistent storage. Mainly for tests; production code should never call this.