Skip to content

Most visited

Recently visited

navigation

SignalStrength

public class SignalStrength
extends Object implements Parcelable

java.lang.Object
   ↳ android.telephony.SignalStrength


Contains phone signal strength related information.

Summary

Inherited constants

From interface android.os.Parcelable

Public methods

int describeContents()

describeContents()

boolean equals(Object o)

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

int getCdmaDbm()

Get the CDMA RSSI value in dBm

int getCdmaEcio()

Get the CDMA Ec/Io value in dB*10

int getEvdoDbm()

Get the EVDO RSSI value in dBm

int getEvdoEcio()

Get the EVDO Ec/Io value in dB*10

int getEvdoSnr()

Get the signal to noise ratio.

int getGsmBitErrorRate()

Get the GSM bit error rate (0-7, 99) as defined in TS 27.007 8.5

int getGsmSignalStrength()

Get the GSM Signal Strength, valid values are (0-31, 99) as defined in TS 27.007 8.5

int getLevel()

Retrieve an abstract level value for the overall signal strength.

int hashCode()

Returns a hash code value for the object.

boolean isGsm()
String toString()

Returns a string representation of the object.

void writeToParcel(Parcel out, int flags)

writeToParcel(Parcel, int)

Inherited methods

From class java.lang.Object
From interface android.os.Parcelable

Public methods

describeContents

Added in API level 7
int describeContents ()

describeContents()

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

equals

Added in API level 7
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 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
o Object: the reference object with which to compare.
Returns
boolean true if the signal strengths are the same

getCdmaDbm

Added in API level 7
int getCdmaDbm ()

Get the CDMA RSSI value in dBm

Returns
int

getCdmaEcio

Added in API level 7
int getCdmaEcio ()

Get the CDMA Ec/Io value in dB*10

Returns
int

getEvdoDbm

Added in API level 7
int getEvdoDbm ()

Get the EVDO RSSI value in dBm

Returns
int

getEvdoEcio

Added in API level 7
int getEvdoEcio ()

Get the EVDO Ec/Io value in dB*10

Returns
int

getEvdoSnr

Added in API level 7
int getEvdoSnr ()

Get the signal to noise ratio. Valid values are 0-8. 8 is the highest.

Returns
int

getGsmBitErrorRate

Added in API level 7
int getGsmBitErrorRate ()

Get the GSM bit error rate (0-7, 99) as defined in TS 27.007 8.5

Returns
int

getGsmSignalStrength

Added in API level 7
int getGsmSignalStrength ()

Get the GSM Signal Strength, valid values are (0-31, 99) as defined in TS 27.007 8.5

Returns
int

getLevel

Added in API level 23
int getLevel ()

Retrieve an abstract level value for the overall signal strength.

Returns
int a single integer from 0 to 4 representing the general signal quality. This may take into account many different radio technology inputs. 0 represents very poor signal strength while 4 represents a very strong signal strength.

hashCode

Added in API level 7
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 JavaTM programming language.)

Returns
int hash code

isGsm

Added in API level 7
boolean isGsm ()

Returns
boolean true if this is for GSM

toString

Added in API level 7
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 string representation.

writeToParcel

Added in API level 7
void writeToParcel (Parcel out, 
                int flags)

writeToParcel(Parcel, int)

Parameters
out 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_WRITE_RETURN_VALUE.
This site uses cookies to store your preferences for site-specific language and display options.

Hooray!

This class requires API level or higher

This doc is hidden because your selected API level for the documentation is . You can change the documentation API level with the selector above the left navigation.

For more information about specifying the API level your app requires, read Supporting Different Platform Versions.