RangingData
public
final
class
RangingData
extends Object
implements
Parcelable
| java.lang.Object | |
| ↳ | android.ranging.RangingData |
Represents ranging data, including distance, azimuth, elevation, and RSSI measurements, along with the ranging technology used and a timestamp.
Summary
Inherited constants |
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Fields | |
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public
static
final
Creator<RangingData> |
CREATOR
|
Public methods | |
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int
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describeContents()
Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
boolean
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equals(Object o)
Indicates whether some other object is "equal to" this one. |
RangingMeasurement
|
getAzimuth()
Returns the azimuth measurement, or |
RangingMeasurement
|
getDistance()
Returns the distance measurement. |
double
|
getDistanceStandardDeviationMeters()
Get the standard deviation of distance in meters . |
RangingMeasurement
|
getElevation()
Returns the elevation measurement, or |
int
|
getRangingTechnology()
Returns the ranging technology used. |
int
|
getRssi()
Returns the RSSI (Received Signal Strength Indicator) value. |
long
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getTimestampMillis()
Returns the timestamp of when the ranging data was collected. |
boolean
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hasDistanceStandardDeviation()
Check if the standard deviation of distance is set. |
boolean
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hasRssi()
Returns whether an RSSI measurement is included with the data. |
int
|
hashCode()
Returns a hash code value for the object. |
String
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toString()
Returns a string representation of the object. |
void
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writeToParcel(Parcel dest, int flags)
Flatten this object in to a Parcel. |
Inherited methods | |
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Fields
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
|
equals
public boolean equals (Object o)
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 returntrue. - It is symmetric: for any non-null reference values
xandy,x.equals(y)should returntrueif and only ify.equals(x)returnstrue. - It is transitive: for any non-null reference values
x,y, andz, ifx.equals(y)returnstrueandy.equals(z)returnstrue, thenx.equals(z)should returntrue. - It is consistent: for any non-null reference values
xandy, multiple invocations ofx.equals(y)consistently returntrueor consistently returnfalse, provided no information used inequalscomparisons on the objects is modified. - For any non-null reference value
x,x.equals(null)should returnfalse.
An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.
| Parameters | |
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o |
Object: the reference object with which to compare. |
| Returns | |
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boolean |
true if this object is the same as the obj
argument; false otherwise. |
getAzimuth
public RangingMeasurement getAzimuth ()
Returns the azimuth measurement, or null if not available.
| Returns | |
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RangingMeasurement |
The RangingMeasurement representing the azimuth, or null. |
getDistance
public RangingMeasurement getDistance ()
Returns the distance measurement.
| Returns | |
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RangingMeasurement |
The RangingMeasurement representing the distance.
This value may be null. |
getDistanceStandardDeviationMeters
public double getDistanceStandardDeviationMeters ()
Get the standard deviation of distance in meters .
Returned value will be positive if it exists
| Returns | |
|---|---|
double |
The standard deviation of distance in meters. |
| Throws | |
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IllegalStateException |
if distance standard deviation is not set. |
getElevation
public RangingMeasurement getElevation ()
Returns the elevation measurement, or null if not available.
| Returns | |
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RangingMeasurement |
The RangingMeasurement representing the elevation, or null. |
getRangingTechnology
public int getRangingTechnology ()
Returns the ranging technology used.
| Returns | |
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int |
The ranging technology as an integer.
Value is one of the following: |
getRssi
public int getRssi ()
Returns the RSSI (Received Signal Strength Indicator) value.
| Returns | |
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int |
The RSSI value as an integer. |
| Throws | |
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IllegalStateException |
if rssi is not set. |
getTimestampMillis
public long getTimestampMillis ()
Returns the timestamp of when the ranging data was collected.
Value is a non-negative timestamp in the
SystemClock.elapsedRealtime() time base.
| Returns | |
|---|---|
long |
The timestamp in milliseconds.
Value is a non-negative timestamp in the SystemClock.elapsedRealtime() time base. |
hasDistanceStandardDeviation
public boolean hasDistanceStandardDeviation ()
Check if the standard deviation of distance is set.
| Returns | |
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boolean |
True if a standard deviation value is set, false if it isn't. |
hasRssi
public boolean hasRssi ()
Returns whether an RSSI measurement is included with the data.
| Returns | |
|---|---|
boolean |
The RSSI value as an integer. |
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
hashCodemethod must consistently return the same integer, provided no information used inequalscomparisons 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
equalsmethod, then calling thehashCodemethod 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
equalsmethod, then calling thehashCodemethod 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.
| Returns | |
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int |
a hash code value for this object. |
toString
public String toString ()
Returns a string representation of the object.
| Returns | |
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String |
a string representation of the object. |
writeToParcel
public void writeToParcel (Parcel dest, int flags)
Flatten this object in to a Parcel.
| Parameters | |
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dest |
Parcel: This value cannot be null. |
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 the following:
|