Generates an anonymous id for analytics

Id.java

import android.content.Context;

import java.util.UUID;

/**
 * This generates an anonymous user id for analytics
 */
public abstract class Id {
    abstract public String getId(final Context context);

    /**
     * Returns a UUID powered Id, works on all android devices
     * @return a UUID powered Id
     */
    protected String getUUIDPoweredId() {
        return UUID.randomUUID().toString();
    }
}