In this method, the proximity parameter is an int that represents the various distances:

• 0 - Unknown
• 1 - Immediate
• 2 - Near
• 3 - Far

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import com.adobe.marketing.mobile.Event;
import com.adobe.marketing.mobile.MobileCore;
import com.adobe.marketing.mobile.UserProfile;

static final String BEACON_MAJOR = "a.beacon.major";
static final String BEACON_MINOR = "a.beacon.minor";
static final String BEACON_UUID = "a.beacon.uuid";
static final String BEACON_PROXIMITY = "a.beacon.prox";

void trackBeacon(final String beaconUUID, final String major, final String minor, final int proximity, final Map<String, String> cdata) {
 final Map<String, String> contextData = cdata == null ? new HashMap<>() : new HashMap<>(cdata);
 final Map<String, Object> userAttributes = new HashMap<>();

 if (major != null && !major.isEmpty()) {
  contextData.put(BEACON_MAJOR, major);
  userAttributes.put(BEACON_MAJOR, major);
 } else {
  UserProfile.removeUserAttributes(Arrays.asList(BEACON_MAJOR));
 }

 if (minor != null && !minor.isEmpty()) {
  contextData.put(BEACON_MINOR, minor);
  userAttributes.put(BEACON_MINOR, minor);
 } else {
  UserProfile.removeUserAttributes(Arrays.asList(BEACON_MINOR));
 }

 if (beaconUUID != null && !beaconUUID.isEmpty()) {
  contextData.put(BEACON_UUID, beaconUUID);
  userAttributes.put(BEACON_UUID, beaconUUID);
 } else {
  UserProfile.removeUserAttributes(Arrays.asList(BEACON_UUID));
 }

 contextData.put(BEACON_PROXIMITY, String.valueOf(proximity));
 userAttributes.put(BEACON_PROXIMITY, String.valueOf(proximity));
 UserProfile.updateUserAttributes(userAttributes);

 final HashMap<String, Object> eventData = new HashMap<>();
 eventData.put("trackinternal", true);
 eventData.put("action", "Beacon");
 eventData.put("contextdata", contextData);

 final Event event = new Event.Builder("TrackBeacon", "com.adobe.eventType.generic.track", "com.adobe.eventSource.requestContent")
   .setEventData(eventData)
   .build();

 MobileCore.dispatchEvent(event);
}
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import com.adobe.marketing.mobile.Event;
import com.adobe.marketing.mobile.MobileCore;
import com.adobe.marketing.mobile.UserProfile;

static final String BEACON_MAJOR = "a.beacon.major";
static final String BEACON_MINOR = "a.beacon.minor";
static final String BEACON_UUID = "a.beacon.uuid";
static final String BEACON_PROXIMITY = "a.beacon.prox";

void trackBeacon(final String beaconUUID, final String major, final String minor, final int proximity, final Map<String, String> cdata) {
 final Map<String, String> contextData = cdata == null ? new HashMap<>() : new HashMap<>(cdata);
 final Map<String, Object> userAttributes = new HashMap<>();

 if (major != null && !major.isEmpty()) {
  contextData.put(BEACON_MAJOR, major);
  userAttributes.put(BEACON_MAJOR, major);
 } else {
  UserProfile.removeUserAttributes(Arrays.asList(BEACON_MAJOR));
 }

 if (minor != null && !minor.isEmpty()) {
  contextData.put(BEACON_MINOR, minor);
  userAttributes.put(BEACON_MINOR, minor);
 } else {
  UserProfile.removeUserAttributes(Arrays.asList(BEACON_MINOR));
 }

 if (beaconUUID != null && !beaconUUID.isEmpty()) {
  contextData.put(BEACON_UUID, beaconUUID);
  userAttributes.put(BEACON_UUID, beaconUUID);
 } else {
  UserProfile.removeUserAttributes(Arrays.asList(BEACON_UUID));
 }

 contextData.put(BEACON_PROXIMITY, String.valueOf(proximity));
 userAttributes.put(BEACON_PROXIMITY, String.valueOf(proximity));
 UserProfile.updateUserAttributes(userAttributes);

 final HashMap<String, Object> eventData = new HashMap<>();
 eventData.put("trackinternal", true);
 eventData.put("action", "Beacon");
 eventData.put("contextdata", contextData);

 final Event event = new Event.Builder("TrackBeacon", "com.adobe.eventType.generic.track", "com.adobe.eventSource.requestContent")
   .setEventData(eventData)
   .build();

 MobileCore.dispatchEvent(event);
}