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CellInfo

public abstract class CellInfo
extends Object implements Parcelable

java.lang.Object
   ↳ android.telephony.CellInfo


Immutable cell information from a point in time.

Summary

Constants

int CONNECTION_NONE

Cell is not a serving cell.

int CONNECTION_PRIMARY_SERVING

UE is connected to cell for signalling and possibly data (3GPP 36.331, 25.331).

int CONNECTION_SECONDARY_SERVING

UE is connected to cell for data (3GPP 36.331, 25.331).

int CONNECTION_UNKNOWN

Connection status is unknown.

Inherited constants

Fields

public static final Creator<CellInfo> CREATOR

Implement the Parcelable interface

Public methods

int describeContents()

Implement the Parcelable interface

boolean equals(Object other)

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

int getCellConnectionStatus()

Gets the connection status of this cell.

long getTimeStamp()

Approximate time of this cell information in nanos since boot

int hashCode()

Returns a hash code value for the object.

boolean isRegistered()

True if this cell is registered to the mobile network

String toString()

Returns a string representation of the object.

abstract void writeToParcel(Parcel dest, int flags)

Implement the Parcelable interface

Inherited methods

Constants

CONNECTION_NONE

added in API level 28
public static final int CONNECTION_NONE

Cell is not a serving cell.

The cell has been measured but is neither a camped nor serving cell (3GPP 36.304).

Constant Value: 0 (0x00000000)

CONNECTION_PRIMARY_SERVING

added in API level 28
public static final int CONNECTION_PRIMARY_SERVING

UE is connected to cell for signalling and possibly data (3GPP 36.331, 25.331).

Constant Value: 1 (0x00000001)

CONNECTION_SECONDARY_SERVING

added in API level 28
public static final int CONNECTION_SECONDARY_SERVING

UE is connected to cell for data (3GPP 36.331, 25.331).

Constant Value: 2 (0x00000002)

CONNECTION_UNKNOWN

added in API level 28
public static final int CONNECTION_UNKNOWN

Connection status is unknown.

Constant Value: 2147483647 (0x7fffffff)

Fields

CREATOR

added in API level 17
public static final Creator<CellInfo> CREATOR

Implement the Parcelable interface

Public methods

describeContents

added in API level 17
public int describeContents ()

Implement the Parcelable interface

Returns
int a bitmask indicating the set of special object types marshaled by this Parcelable object instance.

equals

added in API level 17
public boolean equals (Object other)

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
other Object: the reference object with which to compare.

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

getCellConnectionStatus

added in API level 28
public int getCellConnectionStatus ()

Gets the connection status of this cell.

Returns
int The connection status of the cell.

getTimeStamp

added in API level 17
public long getTimeStamp ()

Approximate time of this cell information in nanos since boot

Returns
long

hashCode

added in API level 17
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.

isRegistered

added in API level 17
public boolean isRegistered ()

True if this cell is registered to the mobile network

Returns
boolean

toString

added in API level 17
public String toString ()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

Returns
String a string representation of the object.

writeToParcel

added in API level 17
public abstract void writeToParcel (Parcel dest, 
                int flags)

Implement the Parcelable interface

Parameters
dest 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.