public final class MidiDeviceInfo extends Object implements Parcelable
Modifier and Type | Class and Description |
---|---|
static class |
MidiDeviceInfo.PortInfo
Contains information about an input or output port.
|
Parcelable.ClassLoaderCreator<T>, Parcelable.Creator<T>
Modifier and Type | Field and Description |
---|---|
static Parcelable.Creator<MidiDeviceInfo> |
CREATOR |
static String |
PROPERTY_ALSA_CARD
Bundle key for the device's ALSA card number.
|
static String |
PROPERTY_ALSA_DEVICE
Bundle key for the device's ALSA device number.
|
static String |
PROPERTY_BLUETOOTH_DEVICE
Bundle key for the device's corresponding Bluetooth device.
|
static String |
PROPERTY_MANUFACTURER
Bundle key for the device's manufacturer name property.
|
static String |
PROPERTY_NAME
Bundle key for the device's user visible name property.
|
static String |
PROPERTY_PRODUCT
Bundle key for the device's product name property.
|
static String |
PROPERTY_SERIAL_NUMBER
Bundle key for the device's serial number property.
|
static String |
PROPERTY_SERVICE_INFO
ServiceInfo for the service hosting the device implementation.
|
static String |
PROPERTY_USB_DEVICE
Bundle key for the device's corresponding USB device.
|
static String |
PROPERTY_VERSION
Bundle key for the device's version property.
|
static int |
TYPE_BLUETOOTH
Constant representing Bluetooth MIDI devices for
getType() |
static int |
TYPE_USB
Constant representing USB MIDI devices for
getType() |
static int |
TYPE_VIRTUAL
Constant representing virtual (software based) MIDI devices for
getType() |
CONTENTS_FILE_DESCRIPTOR, PARCELABLE_ELIDE_DUPLICATES, PARCELABLE_WRITE_RETURN_VALUE
Constructor and Description |
---|
MidiDeviceInfo(int type,
int id,
int numInputPorts,
int numOutputPorts,
String[] inputPortNames,
String[] outputPortNames,
Bundle properties,
boolean isPrivate)
MidiDeviceInfo should only be instantiated by MidiService implementation
|
Modifier and Type | Method and Description |
---|---|
int |
describeContents()
Describe the kinds of special objects contained in this Parcelable
instance's marshaled representation.
|
boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one.
|
int |
getId()
Returns the ID of the device.
|
int |
getInputPortCount()
Returns the device's number of input ports.
|
int |
getOutputPortCount()
Returns the device's number of output ports.
|
MidiDeviceInfo.PortInfo[] |
getPorts()
Returns information about the device's ports.
|
Bundle |
getProperties()
Returns the
Bundle containing the device's properties. |
int |
getType()
Returns the type of the device.
|
int |
hashCode()
Returns a hash code value for the object.
|
boolean |
isPrivate()
Returns true if the device is private.
|
String |
toString()
Returns a string representation of the object.
|
void |
writeToParcel(Parcel parcel,
int flags)
Flatten this object in to a Parcel.
|
public static final int TYPE_USB
getType()
public static final int TYPE_VIRTUAL
getType()
public static final int TYPE_BLUETOOTH
getType()
public static final String PROPERTY_NAME
String
.
Used with the Bundle
returned by getProperties()
.
For USB devices, this is a concatenation of the manufacturer and product names.public static final String PROPERTY_MANUFACTURER
String
.
Used with the Bundle
returned by getProperties()
.
Matches the USB device manufacturer name string for USB MIDI devices.public static final String PROPERTY_PRODUCT
String
.
Used with the Bundle
returned by getProperties()
Matches the USB device product name string for USB MIDI devices.public static final String PROPERTY_VERSION
String
.
Used with the Bundle
returned by getProperties()
Matches the USB device version number for USB MIDI devices.public static final String PROPERTY_SERIAL_NUMBER
String
.
Used with the Bundle
returned by getProperties()
Matches the USB device serial number for USB MIDI devices.public static final String PROPERTY_USB_DEVICE
UsbDevice
.
Only set for USB MIDI devices.
Used with the Bundle
returned by getProperties()
public static final String PROPERTY_BLUETOOTH_DEVICE
BluetoothDevice
.
Only set for Bluetooth MIDI devices.
Used with the Bundle
returned by getProperties()
public static final String PROPERTY_ALSA_CARD
Bundle
returned by getProperties()
public static final String PROPERTY_ALSA_DEVICE
Bundle
returned by getProperties()
public static final String PROPERTY_SERVICE_INFO
ServiceInfo
.
Only set for Virtual MIDI devices.
Used with the Bundle
returned by getProperties()
public static final Parcelable.Creator<MidiDeviceInfo> CREATOR
public int getType()
public int getId()
public int getInputPortCount()
public int getOutputPortCount()
public MidiDeviceInfo.PortInfo[] getPorts()
MidiDeviceInfo.PortInfo
public Bundle getProperties()
Bundle
containing the device's properties.public boolean isPrivate()
public boolean equals(Object o)
Object
The equals
method implements an equivalence relation
on non-null object references:
x
, x.equals(x)
should return
true
.
x
and y
, x.equals(y)
should return true
if and only if
y.equals(x)
returns true
.
x
, y
, and z
, if
x.equals(y)
returns true
and
y.equals(z)
returns true
, then
x.equals(z)
should return true
.
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.
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.
equals
in class Object
o
- the reference object with which to compare.true
if this object is the same as the obj
argument; false
otherwise.Object.hashCode()
,
HashMap
public int hashCode()
Object
HashMap
.
The general contract of hashCode
is:
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.
equals(Object)
method, then calling the hashCode
method on each of
the two objects must produce the same integer result.
Object.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.)
hashCode
in class Object
Object.equals(java.lang.Object)
,
System.identityHashCode(java.lang.Object)
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 parcel, int flags)
Parcelable
writeToParcel
in interface Parcelable
parcel
- 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
.