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| java.lang.Object | |
| ↳ | android.view.InputDevice |
Describes the capabilities of a particular input device.
Each input device may support multiple classes of input. For example, a multi-function keyboard may compose the capabilities of a standard keyboard together with a track pad mouse or other pointing device.
Some input devices present multiple distinguishable sources of input. Applications can query the framework about the characteristics of each distinct source.
As a further wrinkle, different kinds of input sources uses different coordinate systems to describe motion events. Refer to the comments on the input source constants for the appropriate interpretation.
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| InputDevice.MotionRange | Provides information about the range of values for a particular MotionEvent axis. |
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| Constants | |||||||||||
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| int | KEYBOARD_TYPE_ALPHABETIC | The keyboard supports a complement of alphabetic keys. | |||||||||
| int | KEYBOARD_TYPE_NONE | There is no keyboard. | |||||||||
| int | KEYBOARD_TYPE_NON_ALPHABETIC | The keyboard is not fully alphabetic. | |||||||||
| int | MOTION_RANGE_ORIENTATION |
This constant was deprecated
in API level 12.
Use AXIS_ORIENTATION instead.
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| int | MOTION_RANGE_PRESSURE |
This constant was deprecated
in API level 12.
Use AXIS_PRESSURE instead.
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| int | MOTION_RANGE_SIZE |
This constant was deprecated
in API level 12.
Use AXIS_SIZE instead.
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| int | MOTION_RANGE_TOOL_MAJOR |
This constant was deprecated
in API level 12.
Use AXIS_TOOL_MAJOR instead.
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| int | MOTION_RANGE_TOOL_MINOR |
This constant was deprecated
in API level 12.
Use AXIS_TOOL_MINOR instead.
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| int | MOTION_RANGE_TOUCH_MAJOR |
This constant was deprecated
in API level 12.
Use AXIS_TOUCH_MAJOR instead.
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| int | MOTION_RANGE_TOUCH_MINOR |
This constant was deprecated
in API level 12.
Use AXIS_TOUCH_MINOR instead.
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| int | MOTION_RANGE_X |
This constant was deprecated
in API level 12.
Use AXIS_X instead.
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| int | MOTION_RANGE_Y |
This constant was deprecated
in API level 12.
Use AXIS_Y instead.
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| int | SOURCE_ANY | A special input source constant that is used when filtering input devices to match devices that provide any type of input source. | |||||||||
| int | SOURCE_CLASS_BUTTON | The input source has buttons or keys. | |||||||||
| int | SOURCE_CLASS_JOYSTICK | The input source is a joystick. | |||||||||
| int | SOURCE_CLASS_MASK | A mask for input source classes. | |||||||||
| int | SOURCE_CLASS_NONE | The input source has no class. | |||||||||
| int | SOURCE_CLASS_POINTER | The input source is a pointing device associated with a display. | |||||||||
| int | SOURCE_CLASS_POSITION | The input source is an absolute positioning device not associated with a display
(unlike SOURCE_CLASS_POINTER). |
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| int | SOURCE_CLASS_TRACKBALL | The input source is a trackball navigation device. | |||||||||
| int | SOURCE_DPAD | The input source is a DPad. | |||||||||
| int | SOURCE_GAMEPAD | The input source is a game pad. | |||||||||
| int | SOURCE_HDMI | The input source is a device connected through HDMI-based bus. | |||||||||
| int | SOURCE_JOYSTICK | The input source is a joystick. | |||||||||
| int | SOURCE_KEYBOARD | The input source is a keyboard. | |||||||||
| int | SOURCE_MOUSE | The input source is a mouse pointing device. | |||||||||
| int | SOURCE_STYLUS | The input source is a stylus pointing device. | |||||||||
| int | SOURCE_TOUCHPAD | The input source is a touch pad or digitizer tablet that is not
associated with a display (unlike SOURCE_TOUCHSCREEN). |
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| int | SOURCE_TOUCHSCREEN | The input source is a touch screen pointing device. | |||||||||
| int | SOURCE_TOUCH_NAVIGATION | The input source is a touch device whose motions should be interpreted as navigation events. | |||||||||
| int | SOURCE_TRACKBALL | The input source is a trackball. | |||||||||
| int | SOURCE_UNKNOWN | The input source is unknown. | |||||||||
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Inherited Constants | |||||||||||
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 From interface
android.os.Parcelable
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| CREATOR | |||||||||||
| Public Methods | |||||||||||
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Describe the kinds of special objects contained in this Parcelable's
marshalled representation.
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The controller number for a given input device.
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Gets the input device descriptor, which is a stable identifier for an input device.
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Gets information about the input device with the specified id.
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Gets the ids of all input devices in the system.
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Gets the input device id.
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Gets the key character map associated with this input device.
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Gets the keyboard type.
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Gets information about the range of values for a particular
MotionEvent axis
used by a particular source on the device. | |||||||||||
Gets information about the range of values for a particular
MotionEvent axis. | |||||||||||
Gets the ranges for all axes supported by the device.
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Gets the name of this input device.
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Gets the product id for the given device, if available.
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Gets the input sources supported by this input device as a combined bitfield.
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Gets the vendor id for the given device, if available.
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Gets the vibrator service associated with the device, if there is one.
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Gets whether the device is capable of producing the list of keycodes.
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Returns true if the device is a virtual input device rather than a real one,
such as the virtual keyboard (see
VIRTUAL_KEYBOARD). | |||||||||||
Determines whether the input device supports the given source or sources.
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Returns a string containing a concise, human-readable description of this
object.
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Flatten this object in to a Parcel.
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Inherited Methods | |||||||||||
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From class
java.lang.Object
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From interface
android.os.Parcelable
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The keyboard supports a complement of alphabetic keys.
There is no keyboard.
The keyboard is not fully alphabetic. It may be a numeric keypad or an assortment of buttons that are not mapped as alphabetic keys suitable for text input.
This constant was deprecated
in API level 12.
Use AXIS_ORIENTATION instead.
Constant for retrieving the range of values for AXIS_ORIENTATION.
This constant was deprecated
in API level 12.
Use AXIS_PRESSURE instead.
Constant for retrieving the range of values for AXIS_PRESSURE.
This constant was deprecated
in API level 12.
Use AXIS_TOOL_MAJOR instead.
Constant for retrieving the range of values for AXIS_TOOL_MAJOR.
This constant was deprecated
in API level 12.
Use AXIS_TOOL_MINOR instead.
Constant for retrieving the range of values for AXIS_TOOL_MINOR.
This constant was deprecated
in API level 12.
Use AXIS_TOUCH_MAJOR instead.
Constant for retrieving the range of values for AXIS_TOUCH_MAJOR.
This constant was deprecated
in API level 12.
Use AXIS_TOUCH_MINOR instead.
Constant for retrieving the range of values for AXIS_TOUCH_MINOR.
A special input source constant that is used when filtering input devices to match devices that provide any type of input source.
The input source has buttons or keys.
Examples: SOURCE_KEYBOARD, SOURCE_DPAD.
A KeyEvent should be interpreted as a button or key press.
Use getKeyCharacterMap() to query the device's button and key mappings.
The input source is a joystick.
A MotionEvent should be interpreted as absolute joystick movements.
Use getMotionRange(int) to query the range of positions.
A mask for input source classes. Each distinct input source constant has one or more input source class bits set to specify the desired interpretation for its input events.
The input source has no class. It is up to the application to determine how to handle the device based on the device type.
The input source is a pointing device associated with a display.
Examples: SOURCE_TOUCHSCREEN, SOURCE_MOUSE.
A MotionEvent should be interpreted as absolute coordinates in
display units according to the View hierarchy. Pointer down/up indicated when
the finger touches the display or when the selection button is pressed/released.
Use getMotionRange(int) to query the range of the pointing device. Some devices permit
touches outside the display area so the effective range may be somewhat smaller or larger
than the actual display size.
The input source is an absolute positioning device not associated with a display
(unlike SOURCE_CLASS_POINTER).
A MotionEvent should be interpreted as absolute coordinates in
device-specific surface units.
Use getMotionRange(int) to query the range of positions.
The input source is a trackball navigation device.
Examples: SOURCE_TRACKBALL.
A MotionEvent should be interpreted as relative movements in device-specific
units used for navigation purposes. Pointer down/up indicates when the selection button
is pressed/released.
Use getMotionRange(int) to query the range of motion.
The input source is a game pad.
(It may also be a SOURCE_JOYSTICK).
The input source is a device connected through HDMI-based bus. The key comes in through HDMI-CEC or MHL signal line, and is treated as if it were generated by a locally connected DPAD or keyboard.
The input source is a joystick.
(It may also be a SOURCE_GAMEPAD).
The input source is a keyboard.
This source indicates pretty much anything that has buttons. Use
getKeyboardType() to determine whether the keyboard has alphabetic keys
and can be used to enter text.
The input source is a mouse pointing device. This code is also used for other mouse-like pointing devices such as trackpads and trackpoints.
The input source is a stylus pointing device.
Note that this bit merely indicates that an input device is capable of obtaining
input from a stylus. To determine whether a given touch event was produced
by a stylus, examine the tool type returned by getToolType(int)
for each individual pointer.
A single touch event may multiple pointers with different tool types,
such as an event that has one pointer with tool type
TOOL_TYPE_FINGER and another pointer with tool type
TOOL_TYPE_STYLUS. So it is important to examine
the tool type of each pointer, regardless of the source reported
by getSource().
The input source is a touch pad or digitizer tablet that is not
associated with a display (unlike SOURCE_TOUCHSCREEN).
The input source is a touch screen pointing device.
The input source is a touch device whose motions should be interpreted as navigation events. For example, an upward swipe should be as an upward focus traversal in the same manner as pressing up on a D-Pad would be. Swipes to the left, right and down should be treated in a similar manner.
The input source is unknown.
Describe the kinds of special objects contained in this Parcelable's marshalled representation.
The controller number for a given input device.
Each gamepad or joystick is given a unique, positive controller number when initially
configured by the system. This number may change due to events such as device disconnects /
reconnects or user initiated reassignment. Any change in number will trigger an event that
can be observed by registering an InputManager.InputDeviceListener.
All input devices which are not gamepads or joysticks will be assigned a controller number of 0.
Gets the input device descriptor, which is a stable identifier for an input device.
An input device descriptor uniquely identifies an input device. Its value is intended to be persistent across system restarts, and should not change even if the input device is disconnected, reconnected or reconfigured at any time.
It is possible for there to be multiple InputDevice instances that have the
same input device descriptor. This might happen in situations where a single
human input device registers multiple InputDevice instances (HID collections)
that describe separate features of the device, such as a keyboard that also
has a trackpad. Alternately, it may be that the input devices are simply
indistinguishable, such as two keyboards made by the same manufacturer.
The input device descriptor returned by getDescriptor() should only be
used when an application needs to remember settings associated with a particular
input device. For all other purposes when referring to a logical
InputDevice instance at runtime use the id returned by getId().
Gets information about the input device with the specified id.
| id | The device id. |
|---|
Gets the ids of all input devices in the system.
Gets the input device id.
Each input device receives a unique id when it is first configured
by the system. The input device id may change when the system is restarted or if the
input device is disconnected, reconnected or reconfigured at any time.
If you require a stable identifier for a device that persists across
boots and reconfigurations, use getDescriptor().
Gets the key character map associated with this input device.
Gets the keyboard type.
Gets information about the range of values for a particular MotionEvent axis
used by a particular source on the device.
If the device supports multiple sources, the same axis may have different meanings
for each source.
| axis | The axis constant. |
|---|---|
| source | The source for which to return information. |
Gets information about the range of values for a particular MotionEvent axis.
If the device supports multiple sources, the same axis may have different meanings
for each source. Returns information about the first axis found for any source.
To obtain information about the axis for a specific source, use
getMotionRange(int, int).
| axis | The axis constant. |
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Gets the ranges for all axes supported by the device.
Gets the name of this input device.
Gets the product id for the given device, if available.
A product id uniquely identifies which product within the address space of a given vendor, identified by the device's vendor id. A value of 0 will be assigned where a product id is not available.
Gets the input sources supported by this input device as a combined bitfield.
Gets the vendor id for the given device, if available.
A vendor id uniquely identifies the company who manufactured the device. A value of 0 will be assigned where a vendor id is not available.
Gets the vibrator service associated with the device, if there is one.
Even if the device does not have a vibrator, the result is never null.
Use hasVibrator() to determine whether a vibrator is
present.
Note that the vibrator associated with the device may be different from
the system vibrator. To obtain an instance of the system vibrator instead, call
getSystemService(String) with VIBRATOR_SERVICE as argument.
Gets whether the device is capable of producing the list of keycodes.
| keys | The list of android keycodes to check for. |
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Returns true if the device is a virtual input device rather than a real one,
such as the virtual keyboard (see VIRTUAL_KEYBOARD).
Virtual input devices are provided to implement system-level functionality and should not be seen or configured by users.
Determines whether the input device supports the given source or sources.
| source | The input source or sources to check against. This can be a generic device
type such as SOURCE_MOUSE, a more generic device class, such as
SOURCE_CLASS_POINTER, or a combination of sources bitwise ORed together. |
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Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:
getClass().getName() + '@' + Integer.toHexString(hashCode())
See Writing a useful
toString method
if you intend implementing your own toString method.
Flatten this object in to a Parcel.
| out | The Parcel in which the object should be written. |
|---|---|
| flags | Additional flags about how the object should be written.
May be 0 or PARCELABLE_WRITE_RETURN_VALUE.
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