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ResponderLocation

public final class ResponderLocation
extends Object implements Parcelable

java.lang.Object
↳	android.net.wifi.rtt.ResponderLocation

ResponderLocation is both a Location Configuration Information (LCI) decoder and a Location Civic Report (LCR) decoder for information received from a Wi-Fi Access Point (AP) during Wi-Fi RTT ranging process.

This is based on the IEEE P802.11-REVmc/D8.0 spec section 9.4.2.22, under Measurement Report Element. Subelement location data-fields parsed from separate input LCI and LCR Information Elements are unified in this class.

Note: The information provided by this class is broadcast by a responder (usually an Access Point), and passed on as-is. There is no guarantee this information is accurate or correct, and as a result developers should carefully consider how this information should be used and provide corresponding advice to users.

Summary

Constants
`int`	`ALTITUDE_FLOORS` Responder Altitude is measured in floors.
`int`	`ALTITUDE_METERS` Responder Altitude is measured in meters.
`int`	`ALTITUDE_UNDEFINED` Altitude is not defined for the Responder.
`int`	`DATUM_NAD83_MLLW` Datum used is NAD83 MLLW.
`int`	`DATUM_NAD83_NAV88` Datum used is NAD83 NAV88.
`int`	`DATUM_UNDEFINED` Datum is not defined.
`int`	`DATUM_WGS84` Datum used is WGS84.
`int`	`LCI_VERSION_1` Version of the LCI protocol is 1.0, the only defined protocol at this time.
`int`	`LOCATION_FIXED` Location of responder is fixed (does not move)
`int`	`LOCATION_MOVEMENT_UNKNOWN` Location of the responder is not known to be either fixed or variable.
`int`	`LOCATION_RESERVED` Location of the responder status is a reserved value
`int`	`LOCATION_VARIABLE` Location of the responder is variable, and may move

Inherited constants

From interface android.os.Parcelable

`int`	`CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int`	`PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `writeToParcel(Parcel, int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

Fields
`public static final Creator<ResponderLocation>`	`CREATOR`

Public methods
`int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`double`	`getAltitude()`
`int`	`getAltitudeType()`
`double`	`getAltitudeUncertainty()`
`List<MacAddress>`	`getColocatedBssids()`
`int`	`getDatum()`
`int`	`getExpectedToMove()`
`double`	`getFloorNumber()`
`double`	`getHeightAboveFloorMeters()`
`double`	`getHeightAboveFloorUncertaintyMeters()`
`double`	`getLatitude()`
`double`	`getLatitudeUncertainty()`
`int`	`getLciVersion()`
`double`	`getLongitude()`
`double`	`getLongitudeUncertainty()`
`String`	`getMapImageMimeType()`
`Uri`	`getMapImageUri()`
`boolean`	`getRegisteredLocationAgreementIndication()`
`int`	`hashCode()` Returns a hash code value for the object.
`boolean`	`isLciSubelementValid()`
`boolean`	`isZaxisSubelementValid()`
`Address`	`toCivicLocationAddress()`
`SparseArray<String>`	`toCivicLocationSparseArray()`
`Location`	`toLocation()`
`void`	`writeToParcel(Parcel parcel, int flags)` Flatten this object in to a Parcel.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


        
          android.os.Parcelable

`abstract int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void`	`writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

Constants

ALTITUDE_FLOORS

public static final int ALTITUDE_FLOORS

Responder Altitude is measured in floors.

Constant Value: 2 (0x00000002)

ALTITUDE_METERS

public static final int ALTITUDE_METERS

Responder Altitude is measured in meters.

Constant Value: 1 (0x00000001)

ALTITUDE_UNDEFINED

public static final int ALTITUDE_UNDEFINED

Altitude is not defined for the Responder. The altitude and altitude uncertainty should not be used: see section 2.4 of IETF RFC 6225.

Constant Value: 0 (0x00000000)

DATUM_NAD83_MLLW

public static final int DATUM_NAD83_MLLW

Datum used is NAD83 MLLW.

Constant Value: 3 (0x00000003)

DATUM_NAD83_NAV88

public static final int DATUM_NAD83_NAV88

Datum used is NAD83 NAV88.

Constant Value: 2 (0x00000002)

DATUM_UNDEFINED

public static final int DATUM_UNDEFINED

Datum is not defined.

Constant Value: 0 (0x00000000)

DATUM_WGS84

public static final int DATUM_WGS84

Datum used is WGS84.

Constant Value: 1 (0x00000001)

LCI_VERSION_1

public static final int LCI_VERSION_1

Version of the LCI protocol is 1.0, the only defined protocol at this time.

Constant Value: 1 (0x00000001)

LOCATION_FIXED

public static final int LOCATION_FIXED

Location of responder is fixed (does not move)

Constant Value: 0 (0x00000000)

LOCATION_MOVEMENT_UNKNOWN

public static final int LOCATION_MOVEMENT_UNKNOWN

Location of the responder is not known to be either fixed or variable.

Constant Value: 2 (0x00000002)

LOCATION_RESERVED

public static final int LOCATION_RESERVED

Location of the responder status is a reserved value

Constant Value: 3 (0x00000003)

LOCATION_VARIABLE

public static final int LOCATION_VARIABLE

Location of the responder is variable, and may move

Constant Value: 1 (0x00000001)

Fields

CREATOR

public static final Creator<ResponderLocation> CREATOR

Public methods

describeContents

public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
`int`	a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or `CONTENTS_FILE_DESCRIPTOR`

equals

public boolean equals (Object obj)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Parameters
`obj`	`Object`: the reference object with which to compare.

Returns
`boolean`	`true` if this object is the same as the obj argument; `false` otherwise.

getAltitude

public double getAltitude ()

Returns
`double`	the Altitude in units defined by the altitude type. Only valid if `isLciSubelementValid()` returns true, or will throw an exception.

getAltitudeType

public int getAltitudeType ()

Returns
`int`	the Altitude type. Only valid if `isLciSubelementValid()` returns true, or will throw an exception. Value is `ALTITUDE_UNDEFINED`, `ALTITUDE_METERS`, or `ALTITUDE_FLOORS`

getAltitudeUncertainty

public double getAltitudeUncertainty ()

Returns

Returns
`double`	the Altitude uncertainty in meters. Only valid if `isLciSubelementValid()` returns true, or will throw an exception. An unknown uncertainty is indicated by 0.

double

the Altitude uncertainty in meters.

Only valid if isLciSubelementValid() returns true, or will throw an exception.

An unknown uncertainty is indicated by 0.

getColocatedBssids

public List<MacAddress> getColocatedBssids ()

Returns
`List<MacAddress>`	the Immutable list of colocated BSSIDs at the responder. Will return an empty list when there are no bssids listed.

getDatum

public int getDatum ()

Returns
`int`	the Datum used for the LCI positioning information. Only valid if `isLciSubelementValid()` returns true, or will throw an exception. Value is `DATUM_UNDEFINED`, `DATUM_WGS84`, `DATUM_NAD83_NAV88`, or `DATUM_NAD83_MLLW`

getExpectedToMove

public int getExpectedToMove ()

Returns
`int`	an integer representing the mobility of the responder. Only valid if `isZaxisSubelementValid()` returns true, or will throw an exception. Value is `LOCATION_FIXED`, `LOCATION_VARIABLE`, `LOCATION_MOVEMENT_UNKNOWN`, or `LOCATION_RESERVED`

getFloorNumber

public double getFloorNumber ()

Returns

Returns
`double`	the Z sub element Floor Number. Only valid if `isZaxisSubelementValid()` returns true, or will throw an exception. Note: this number can be positive or negative, with value increments of +/- 1/16 of a floor. .

double

the Z sub element Floor Number.

Only valid if isZaxisSubelementValid() returns true, or will throw an exception.

Note: this number can be positive or negative, with value increments of +/- 1/16 of a floor.

getHeightAboveFloorMeters

public double getHeightAboveFloorMeters ()

Returns

Returns
`double`	the Z subelement Height above the floor in meters. Only valid if `isZaxisSubelementValid()` returns true, or will throw an exception. This value can be positive or negative.

double

the Z subelement Height above the floor in meters.

Only valid if isZaxisSubelementValid() returns true, or will throw an exception.

This value can be positive or negative.

getHeightAboveFloorUncertaintyMeters

public double getHeightAboveFloorUncertaintyMeters ()

Returns

Returns
`double`	the Z subelement Height above the floor uncertainty in meters. Only valid if `isZaxisSubelementValid()` returns true, or will throw an exception. An unknown uncertainty is indicated by 0.

double

the Z subelement Height above the floor uncertainty in meters.

Only valid if isZaxisSubelementValid() returns true, or will throw an exception.

An unknown uncertainty is indicated by 0.

getLatitude

public double getLatitude ()

Returns
`double`	the latitude in degrees Only valid if `isLciSubelementValid()` returns true, or will throw an exception.

getLatitudeUncertainty

public double getLatitudeUncertainty ()

Returns

Returns
`double`	the latitude uncertainty in degrees. Only valid if `isLciSubelementValid()` returns true, or will throw an exception. An unknown uncertainty is indicated by 0.

double

the latitude uncertainty in degrees.

Only valid if isLciSubelementValid() returns true, or will throw an exception.

An unknown uncertainty is indicated by 0.

getLciVersion

public int getLciVersion ()

Returns
`int`	a value greater or equal to 1, indicating the current version number of the LCI protocol. Only valid if `isLciSubelementValid()` returns true, or will throw an exception.

getLongitude

public double getLongitude ()

Returns
`double`	the Longitude in degrees.. Only valid if `isLciSubelementValid()` returns true, or will throw an exception.

getLongitudeUncertainty

public double getLongitudeUncertainty ()

Returns

Returns
`double`	the Longitude uncertainty in degrees. Only valid if `isLciSubelementValid()` returns true, or will throw an exception. An unknown uncertainty is indicated by 0.

double

the Longitude uncertainty in degrees.

Only valid if isLciSubelementValid() returns true, or will throw an exception.

An unknown uncertainty is indicated by 0.

getMapImageMimeType

public String getMapImageMimeType ()

Returns
`String`	the Map Image file Mime type, referred to by getMapImageUrl(). This value may be `null`.

getMapImageUri

public Uri getMapImageUri ()

Returns
`Uri`	a URI referencing a map-file showing the local floor plan. Will return a `null` when there is no URI defined.

getRegisteredLocationAgreementIndication

public boolean getRegisteredLocationAgreementIndication ()

Returns
`boolean`	true if the station is operating within a national policy area or an international agreement area near a national border, otherwise false (see 802.11REVmc Section 11.12.3 - Registered STA Operation). Only valid if `isLciSubelementValid()` returns true, or will throw an exception.

hashCode

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java™ programming language.)

Returns
`int`	a hash code value for this object.

isLciSubelementValid

public boolean isLciSubelementValid ()

Returns

Returns
`boolean`	true if the LCI subelement (containing Latitude, Longitude and Altitude) is valid. This method tells us if the responder has provided its Location Configuration Information (LCI) directly, and is useful when an external database of responder locations is not available If isLciSubelementValid() returns true, all the LCI values provided by the corresponding getter methods will have been set as described by the responder, or else if false, they should not be used and will throw an IllegalStateException.

boolean

true if the LCI subelement (containing Latitude, Longitude and Altitude) is valid.

This method tells us if the responder has provided its Location Configuration Information (LCI) directly, and is useful when an external database of responder locations is not available

If isLciSubelementValid() returns true, all the LCI values provided by the corresponding getter methods will have been set as described by the responder, or else if false, they should not be used and will throw an IllegalStateException.

isZaxisSubelementValid

public boolean isZaxisSubelementValid ()

Returns
`boolean`	if the Z subelement (containing mobility, Floor, Height above floor) is valid.

toCivicLocationAddress

public Address toCivicLocationAddress ()

Returns
`Address`	the civic location represented as an `Address` object (best effort). Will return a `null` when there is no Civic Location defined.

toCivicLocationSparseArray

public SparseArray<String> toCivicLocationSparseArray ()

Returns

Returns
`SparseArray<String>`	the civic location represented as a `SparseArray` Valid keys to access the SparseArray can be found in `CivicLocationKeys`. Will return a `null` when there is no Civic Location defined.

SparseArray<String>

the civic location represented as a SparseArray

Valid keys to access the SparseArray can be found in CivicLocationKeys.

Will return a null when there is no Civic Location defined.

toLocation

public Location toLocation ()

Returns
`Location`	the LCI location represented as a `Location` object (best effort). Only valid if `isLciSubelementValid()` returns true, or will throw an exception. This value cannot be `null`.

writeToParcel

public void writeToParcel (Parcel parcel, 
                int flags)

Flatten this object in to a Parcel.

Parameters
`parcel`	`Parcel`: The Parcel in which the object should be written.
`flags`	`int`: Additional flags about how the object should be written. May be 0 or `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES