Use this class to create beacon fences.
The fences in this class support detecting nearby beacons that are associated with attachments, which are a triple of namespace, type, and content.
Note: Values that indicate a changing state are momentarily TRUE
      for about 5 seconds, then automatically revert to FALSE.
Public Method Summary
| static AwarenessFence | 
                 
                  
                  found(Collection<BeaconState.TypeFilter>
                  beaconTypes)
                   
              
                    This fence is momentarily  
                
                    TRUE (about 5 seconds) when a beacon with the specified types is
                    found.
                   | 
            
| static AwarenessFence | 
                 
                  
                  found(TypeFilter...
                  beaconTypes)
                   
              
                    This fence is momentarily  
                
                    TRUE (about 5 seconds) when a beacon with the specified types is
                    found.
                   | 
            
| static AwarenessFence | 
                 
                  
                  lost(TypeFilter...
                  beaconTypes)
                   
              
                    This fence is momentarily  
                
                    TRUE (about 5 seconds) when a beacon with the specified types is
                    lost.
                   | 
            
| static AwarenessFence | 
                 
                  
                  lost(Collection<BeaconState.TypeFilter>
                  beaconTypes)
                   
              
                    This fence is momentarily  
                
                    TRUE (about 5 seconds) when a beacon with the specified types is
                    lost.
                   | 
            
| static AwarenessFence | 
                 
                  
                  near(TypeFilter...
                  beaconTypes)
                   
              
                    This fence evaluates to  
                
                    TRUE if any of the specified types is found but not lost.
                   | 
            
| static AwarenessFence | 
                 
                  
                  near(Collection<BeaconState.TypeFilter>
                  beaconTypes)
                   
              
                    This fence evaluates to  
                
                    TRUE if any of the specified types is found but not lost.
                   | 
            
Inherited Method Summary
Public Methods
public static AwarenessFence found (Collection<BeaconState.TypeFilter> beaconTypes)
This fence is momentarily TRUE
            (about 5 seconds) when a beacon with the specified types is found.
To use this API, your app must declare the
            android.permission.ACCESS_FINE_LOCATION permission in AndroidManifest.xml,
            and the user must provide consent at runtime.
Parameters
| beaconTypes | 
                BeaconState.TypeFilter non-empty beacon types listing to scan for. | 
              
|---|
Returns
Throws
| IllegalArgumentException | when beaconTypes is null or empty | 
|---|
public static AwarenessFence found (TypeFilter... beaconTypes)
This fence is momentarily TRUE
            (about 5 seconds) when a beacon with the specified types is found.
To use this API, your app must declare the
            android.permission.ACCESS_FINE_LOCATION permission in AndroidManifest.xml,
            and the user must provide consent at runtime.
Parameters
| beaconTypes | 
                BeaconState.TypeFilter non-empty beacon types listing to scan for. | 
              
|---|
Returns
Throws
| IllegalArgumentException | when beaconTypes is null or empty | 
|---|
public static AwarenessFence lost (TypeFilter... beaconTypes)
This fence is momentarily TRUE
            (about 5 seconds) when a beacon with the specified types is lost.
To use this API, your app must declare the
            android.permission.ACCESS_FINE_LOCATION permission in AndroidManifest.xml,
            and the user must provide consent at runtime.
Parameters
| beaconTypes | 
                BeaconState.TypeFilter non-empty beacon types listing to scan for. | 
              
|---|
Returns
Throws
| IllegalArgumentException | when beaconTypes is null or empty | 
|---|
public static AwarenessFence lost (Collection<BeaconState.TypeFilter> beaconTypes)
This fence is momentarily TRUE
            (about 5 seconds) when a beacon with the specified types is lost.
To use this API, your app must declare the
            android.permission.ACCESS_FINE_LOCATION permission in AndroidManifest.xml,
            and the user must provide consent at runtime.
Parameters
| beaconTypes | 
                BeaconState.TypeFilter non-empty beacon types listing to scan for. | 
              
|---|
Returns
Throws
| IllegalArgumentException | when beaconTypes is null or empty | 
|---|
public static AwarenessFence near (TypeFilter... beaconTypes)
This fence evaluates to TRUE
            if any of the specified types is found but not lost.
To use this API, your app must declare the
            android.permission.ACCESS_FINE_LOCATION permission in AndroidManifest.xml,
            and the user must provide consent at runtime.
Parameters
| beaconTypes | 
                BeaconState.TypeFilter non-empty beacon types listing to scan for. | 
              
|---|
Returns
Throws
| IllegalArgumentException | when beaconTypes is null or empty | 
|---|
public static AwarenessFence near (Collection<BeaconState.TypeFilter> beaconTypes)
This fence evaluates to TRUE
            if any of the specified types is found but not lost.
To use this API, your app must declare the
            android.permission.ACCESS_FINE_LOCATION permission in AndroidManifest.xml,
            and the user must provide consent at runtime.
Parameters
| beaconTypes | 
                BeaconState.TypeFilter non-empty beacon types listing to scan for. | 
              
|---|
Returns
Throws
| IllegalArgumentException | when beaconTypes is null or empty | 
|---|