CellSignalStrengthGsm
public
final
class
CellSignalStrengthGsm
extends CellSignalStrength
implements
Parcelable
java.lang.Object | ||
↳ | android.telephony.CellSignalStrength | |
↳ | android.telephony.CellSignalStrengthGsm |
GSM signal strength related information.
Summary
Inherited constants |
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Fields | |
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public
static
final
Creator<CellSignalStrengthGsm> |
CREATOR
Implement the Parcelable interface |
Public methods | |
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int
|
describeContents()
Implement the Parcelable interface |
boolean
|
equals(Object o)
Indicates whether some other object is "equal to" this one. |
int
|
getAsuLevel()
Get the RSSI in ASU. |
int
|
getBitErrorRate()
Return the Bit Error Rate. |
int
|
getDbm()
Get the signal strength as dBm. |
int
|
getLevel()
Retrieve an abstract level value for the overall signal quality. |
int
|
getRssi()
Return the Received Signal Strength Indicator. |
int
|
getTimingAdvance()
Get the GSM timing advance between 0..219 symbols (normally 0..63). |
int
|
hashCode()
Returns a hash code value for the object. |
String
|
toString()
Returns a string representation of the object. |
void
|
writeToParcel(Parcel dest, int flags)
Implement the Parcelable interface |
Inherited methods | |
---|---|
Fields
CREATOR
public static final Creator<CellSignalStrengthGsm> CREATOR
Implement the Parcelable interface
Public methods
describeContents
public int describeContents ()
Implement the Parcelable interface
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 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
x
andy
,x.equals(y)
should returntrue
if and only ify.equals(x)
returnstrue
. - It is transitive: for any non-null reference values
x
,y
, andz
, ifx.equals(y)
returnstrue
andy.equals(z)
returnstrue
, thenx.equals(z)
should returntrue
. - It is consistent: for any non-null reference values
x
andy
, multiple invocations ofx.equals(y)
consistently returntrue
or consistently returnfalse
, provided no information used inequals
comparisons 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 | |
---|---|
o |
Object : the reference object with which to compare. |
Returns | |
---|---|
boolean |
true if this object is the same as the obj
argument; false otherwise. |
getAsuLevel
public int getAsuLevel ()
Get the RSSI in ASU. Asu is calculated based on 3GPP RSSI. Refer to 3GPP 27.007 (Ver 10.3.0) Sec 8.69
Returns | |
---|---|
int |
RSSI in ASU 0..31, 99, or
UNAVAILABLE . |
getBitErrorRate
public int getBitErrorRate ()
Return the Bit Error Rate.
Returns | |
---|---|
int |
the bit error rate (0-7, 99) as defined in TS 27.007 8.5 or
UNAVAILABLE . |
getDbm
public int getDbm ()
Get the signal strength as dBm.
Returns | |
---|---|
int |
the RSSI of the measured cell. |
getLevel
public int getLevel ()
Retrieve an abstract level value for the overall signal quality.
Returns | |
---|---|
int |
Value is between SIGNAL_STRENGTH_NONE_OR_UNKNOWN and SIGNAL_STRENGTH_GREAT inclusive |
getRssi
public int getRssi ()
Return the Received Signal Strength Indicator.
Returns | |
---|---|
int |
the RSSI in dBm (-113, -51) or
UNAVAILABLE . |
getTimingAdvance
public int getTimingAdvance ()
Get the GSM timing advance between 0..219 symbols (normally 0..63).
UNAVAILABLE
is reported when there is no RR
connection. Refer to 3GPP 45.010 Sec 5.8.
Returns | |
---|---|
int |
the current GSM timing advance, if available. |
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 inequals
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
method, then calling thehashCode
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
method, then calling thehashCode
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.
Returns | |
---|---|
int |
a hash code value for this object. |
toString
public String toString ()
Returns a string representation of the object.
Returns | |
---|---|
String |
string representation. |
writeToParcel
public void writeToParcel (Parcel dest, int flags)
Implement the Parcelable interface
Parameters | |
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dest |
Parcel : The Parcel in which the object should be written.
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 Parcelable.PARCELABLE_WRITE_RETURN_VALUE , and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES |