public final class UsbPortStatus extends Object implements Parcelable
This object is immutable.
Parcelable.ClassLoaderCreator<T>, Parcelable.Creator<T>
Modifier and Type | Field and Description |
---|---|
static Parcelable.Creator<UsbPortStatus> |
CREATOR |
CONTENTS_FILE_DESCRIPTOR, PARCELABLE_ELIDE_DUPLICATES, PARCELABLE_WRITE_RETURN_VALUE
Constructor and Description |
---|
UsbPortStatus(int currentMode,
int currentPowerRole,
int currentDataRole,
int supportedRoleCombinations) |
Modifier and Type | Method and Description |
---|---|
int |
describeContents()
Describe the kinds of special objects contained in this Parcelable
instance's marshaled representation.
|
int |
getCurrentDataRole()
Gets the current data role of the port.
|
int |
getCurrentMode()
Gets the current mode of the port.
|
int |
getCurrentPowerRole()
Gets the current power role of the port.
|
int |
getSupportedRoleCombinations() |
boolean |
isConnected()
Returns true if there is anything connected to the port.
|
boolean |
isRoleCombinationSupported(int powerRole,
int dataRole)
Returns true if the specified power and data role combination is supported
given what is currently connected to the port.
|
String |
toString()
Returns a string representation of the object.
|
void |
writeToParcel(Parcel dest,
int flags)
Flatten this object in to a Parcel.
|
public static final Parcelable.Creator<UsbPortStatus> CREATOR
public UsbPortStatus(int currentMode, int currentPowerRole, int currentDataRole, int supportedRoleCombinations)
public boolean isConnected()
public int getCurrentMode()
UsbPort.MODE_DFP
, UsbPort.MODE_UFP
,
or 0 if nothing is connected.public int getCurrentPowerRole()
UsbPort.POWER_ROLE_SOURCE
,
UsbPort.POWER_ROLE_SINK
, or 0 if nothing is connected.public int getCurrentDataRole()
UsbPort.DATA_ROLE_HOST
,
UsbPort.DATA_ROLE_DEVICE
, or 0 if nothing is connected.public boolean isRoleCombinationSupported(int powerRole, int dataRole)
powerRole
- The power role to check: UsbPort.POWER_ROLE_SOURCE
or UsbPort.POWER_ROLE_SINK
, or 0 if no power role.dataRole
- The data role to check: either UsbPort.DATA_ROLE_HOST
or UsbPort.DATA_ROLE_DEVICE
, or 0 if no data role.public int getSupportedRoleCombinations()
public String toString()
Object
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())
public int describeContents()
Parcelable
Parcelable.writeToParcel(Parcel, int)
,
the return value of this method must include the
Parcelable.CONTENTS_FILE_DESCRIPTOR
bit.describeContents
in interface Parcelable
Parcelable.CONTENTS_FILE_DESCRIPTOR
public void writeToParcel(Parcel dest, int flags)
Parcelable
writeToParcel
in interface Parcelable
dest
- The Parcel in which the object should be written.flags
- Additional flags about how the object should be written.
May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE
.