Android APIs
public abstract class

CellSignalStrength

extends Object
java.lang.Object
   ↳ android.telephony.CellSignalStrength
Known Direct Subclasses

Class Overview

Abstract base class for cell phone signal strength related information.

Summary

Constants
int SIGNAL_STRENGTH_GOOD
int SIGNAL_STRENGTH_GREAT
int SIGNAL_STRENGTH_MODERATE
int SIGNAL_STRENGTH_NONE_OR_UNKNOWN
int SIGNAL_STRENGTH_POOR
Public Methods
abstract boolean equals(Object o)
Compares this instance with the specified object and indicates if they are equal.
abstract int getAsuLevel()
Get the signal level as an asu value between 0..31, 99 is unknown
abstract int getDbm()
Get the signal strength as dBm
abstract int getLevel()
Get signal level as an int from 0..4

abstract int hashCode()
Returns an integer hash code for this object.
[Expand]
Inherited Methods
From class java.lang.Object

Constants

public static final int SIGNAL_STRENGTH_GOOD

Added in API level 23

Constant Value: 3 (0x00000003)

public static final int SIGNAL_STRENGTH_GREAT

Added in API level 23

Constant Value: 4 (0x00000004)

public static final int SIGNAL_STRENGTH_MODERATE

Added in API level 23

Constant Value: 2 (0x00000002)

public static final int SIGNAL_STRENGTH_NONE_OR_UNKNOWN

Added in API level 23

Constant Value: 0 (0x00000000)

public static final int SIGNAL_STRENGTH_POOR

Added in API level 23

Constant Value: 1 (0x00000001)

Public Methods

public abstract boolean equals (Object o)

Added in API level 17

Compares this instance with the specified object and indicates if they are equal. In order to be equal, o must represent the same object as this instance using a class-specific comparison. The general contract is that this comparison should be reflexive, symmetric, and transitive. Also, no object reference other than null is equal to null.

The default implementation returns true only if this == o. See Writing a correct equals method if you intend implementing your own equals method.

The general contract for the equals and hashCode() methods is that if equals returns true for any two objects, then hashCode() must return the same value for these objects. This means that subclasses of Object usually override either both methods or neither of them.

Parameters
o Object: the object to compare this instance with.
Returns
boolean true if the specified object is equal to this Object; false otherwise.

public abstract int getAsuLevel ()

Added in API level 17

Get the signal level as an asu value between 0..31, 99 is unknown

Returns
int

public abstract int getDbm ()

Added in API level 17

Get the signal strength as dBm

Returns
int

public abstract int hashCode ()

Added in API level 17

Returns an integer hash code for this object. By contract, any two objects for which equals(Object) returns true must return the same hash code value. This means that subclasses of Object usually override both methods or neither method.

Note that hash values must not change over time unless information used in equals comparisons also changes.

See Writing a correct hashCode method if you intend implementing your own hashCode method.

Returns
int this object's hash code.