harmony 鸿蒙@ohos.multimodalInput.inputDevice (Input Device)

  • 2022-08-09
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@ohos.multimodalInput.inputDevice (Input Device)

The inputDevice module allows you to listen for hot swap events of input devices and query information about input devices.

NOTE

The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import inputDevice from '@ohos.multimodalInput.inputDevice';

inputDevice.getDeviceList9+

getDeviceList(callback: AsyncCallback<Array<number>>): void

Obtains the IDs of all input devices. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
callback AsyncCallback<Array<number>> Yes Callback used to return the result.

Example

try {
  inputDevice.getDeviceList((error: Error, ids: Array<Number>) => {
    if (error) {
      console.log(`Failed to get device id list, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Device id list: ${JSON.stringify(ids)}`);
  });
} catch (error) {
  console.log(`Failed to get device id list, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getDeviceList9+

getDeviceList(): Promise&lt;Array&lt;number&gt;&gt;

Obtains the IDs of all input devices. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Return value

Parameters Description
Promise&lt;Array&lt;number&gt;&gt; Promise used to return the result.

Example

try {
  inputDevice.getDeviceList().then((ids: Array<Number>) => {
    console.log(`Device id list: ${JSON.stringify(ids)}`);
  });
} catch (error) {
  console.log(`Failed to get device id list, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getDeviceInfo9+

getDeviceInfo(deviceId: number, callback: AsyncCallback&lt;InputDeviceData&gt;): void

Obtains information about an input device. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes ID of the input device.
callback AsyncCallback&lt;InputDeviceData&gt; Yes Callback used to return the result, which is an InputDeviceData object.

Example

// Obtain the name of the device whose ID is 1.
try {
  inputDevice.getDeviceInfo(1, (error: Error, deviceData: inputDevice.InputDeviceData) => {
    if (error) {
      console.log(`Failed to get device info, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Device info: ${JSON.stringify(deviceData)}`);
  });
} catch (error) {
  console.log(`Failed to get device info, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getDeviceInfo9+

getDeviceInfo(deviceId: number): Promise&lt;InputDeviceData&gt;

Obtains information about an input device. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes ID of the input device.

Return value

Parameters Description
Promise&lt;InputDeviceData&gt; Promise used to return the result.

Example

// Obtain the name of the device whose ID is 1.
try {
  inputDevice.getDeviceInfo(1).then((deviceData: inputDevice.InputDeviceData) => {
    console.log(`Device info: ${JSON.stringify(deviceData)}`);
  });
} catch (error) {
  console.log(`Failed to get device info, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getDeviceInfoSync10+

getDeviceInfoSync(deviceId: number): InputDeviceData

Obtains information about the specified input device.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes ID of the input device.

Return value

Parameters Description
InputDeviceData Information about the input device.

Example

// Obtain the name of the device whose ID is 1.
try {
  let deviceData: inputDevice.InputDeviceData = inputDevice.getDeviceInfoSync(1)
  console.log(`Device info: ${JSON.stringify(deviceData)}`)
} catch (error) {
  console.log(`Failed to get device info, error: ${JSON.stringify(error, [`code`, `message`])}`)
}

inputDevice.on9+

on(type: “change”, listener: Callback&lt;DeviceListener&gt;): void

Enables listening for device hot swap events.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
type string Yes Event type of the input device.
listener Callback&lt;DeviceListener&gt; Yes Listener for events of the input device.

Example

let isPhysicalKeyboardExist = true;
try {
  inputDevice.on("change", (data: inputDevice.DeviceListener) => {
    console.log(`Device event info: ${JSON.stringify(data)}`);
    inputDevice.getKeyboardType(data.deviceId, (err: Error, type: inputDevice.KeyboardType) => {
      console.log("The keyboard type is: " + type);
      if (type == inputDevice.KeyboardType.ALPHABETIC_KEYBOARD && data.type == 'add') {
        // The physical keyboard is connected.
        isPhysicalKeyboardExist = true;
      } else if (type == inputDevice.KeyboardType.ALPHABETIC_KEYBOARD && data.type == 'remove') {
        // The physical keyboard is disconnected.
        isPhysicalKeyboardExist = false;
      }
    });
  });
  // Check whether the soft keyboard is open based on the value of isPhysicalKeyboardExist.
} catch (error) {
  console.log(`Get device info failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.off9+

off(type: “change”, listener?: Callback&lt;DeviceListener&gt;): void

Disables listening for device hot swap events. This API is called before the application exits.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
type string Yes Event type of the input device.
listener Callback&lt;DeviceListener&gt; No Listener for events of the input device.

Example

function callback(data: inputDevice.DeviceListener) {
  console.log(`Report device event info: ${JSON.stringify(data, [`type`, `deviceId`])}`);
};

try {
  inputDevice.on("change", callback);
} catch (error) {
  console.log(`Listen device event failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

// Disable this listener.
try {
  inputDevice.off("change", callback);
} catch (error) {
  console.log(`Cancel listening device event failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

// Disable all listeners.
try {
  inputDevice.off("change");
} catch (error) {
  console.log(`Cancel all listening device event failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getDeviceIds(deprecated)

getDeviceIds(callback: AsyncCallback&lt;Array&lt;number&gt;&gt;): void

Obtains the IDs of all input devices. This API uses an asynchronous callback to return the result.

This API is deprecated since API version 9. You are advised to use inputDevice.getDeviceList instead.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
callback AsyncCallback&lt;Array&lt;number&gt;&gt; Yes Callback used to return the result.

Example

inputDevice.getDeviceIds((error: Error, ids: Array<Number>) => {
  if (error) {
    console.log(`Failed to get device id list, error: ${JSON.stringify(error, [`code`, `message`])}`);
    return;
  }
  console.log(`Device id list: ${JSON.stringify(ids)}`);
});

inputDevice.getDeviceIds(deprecated)

getDeviceIds(): Promise&lt;Array&lt;number&gt;&gt;

Obtains the IDs of all input devices. This API uses a promise to return the result.

This API is deprecated since API version 9. You are advised to use inputDevice.getDeviceList instead.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Return value

Parameters Description
Promise&lt;Array&lt;number&gt;&gt; Promise used to return the result.

Example

inputDevice.getDeviceIds().then((ids: Array<Number>) => {
  console.log(`Device id list: ${JSON.stringify(ids)}`);
});

inputDevice.getDevice(deprecated)

getDevice(deviceId: number, callback: AsyncCallback&lt;InputDeviceData&gt;): void

Obtains information about an input device. This API uses an asynchronous callback to return the result.

This API is deprecated since API version 9. You are advised to use inputDevice.getDeviceInfo instead.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes ID of the input device.
callback AsyncCallback&lt;InputDeviceData&gt; Yes Callback used to return the result, which is an InputDeviceData object.

Example

// Obtain the name of the device whose ID is 1.
inputDevice.getDevice(1, (error: Error, deviceData: inputDevice.InputDeviceData) => {
  if (error) {
    console.log(`Failed to get device info, error: ${JSON.stringify(error, [`code`, `message`])}`);
    return;
  }
  console.log(`Device info: ${JSON.stringify(deviceData)}`);
});

inputDevice.getDevice(deprecated)

getDevice(deviceId: number): Promise&lt;InputDeviceData&gt;

Obtains information about an input device. This API uses a promise to return the result.

This API is deprecated since API version 9. You are advised to use inputDevice.getDeviceInfo instead.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes ID of the input device.

Return value

Parameters Description
Promise&lt;InputDeviceData&gt; Promise used to return the result.

Example

// Obtain the name of the device whose ID is 1.
inputDevice.getDevice(1).then((deviceData: inputDevice.InputDeviceData) => {
  console.log(`Device info: ${JSON.stringify(deviceData)}`);
});

inputDevice.supportKeys9+

supportKeys(deviceId: number, keys: Array&lt;KeyCode&gt;, callback: AsyncCallback &lt;Array&lt;boolean&gt;&gt;): void

Obtains the keycodes supported by the input device. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes Unique ID of the input device. If the same physical device is repeatedly inserted and removed, its ID changes.
keys Array&lt;KeyCode&gt; Yes Keycodes to be queried. A maximum of five keycodes can be specified.
callback AsyncCallback&lt;Array&lt;boolean&gt;&gt; Yes Callback used to return the result.

Example

// Check whether the input device whose ID is 1 supports keycodes 17, 22, and 2055.
try {
  inputDevice.supportKeys(1, [17, 22, 2055], (error: Error, supportResult: Array<Boolean>) => {
    console.log(`Query result: ${JSON.stringify(supportResult)}`);
  });
} catch (error) {
  console.log(`Query failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.supportKeys9+

supportKeys(deviceId: number, keys: Array&lt;KeyCode&gt;): Promise&lt;Array&lt;boolean&gt;&gt;

Obtains the keycodes supported by the input device. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes Unique ID of the input device. If the same physical device is repeatedly inserted and removed, its ID changes.
keys Array&lt;KeyCode&gt; Yes Keycodes to be queried. A maximum of five keycodes can be specified.

Return value

Parameters Description
Promise&lt;Array&lt;boolean&gt;&gt; Promise used to return the result.

Example

// Check whether the input device whose ID is 1 supports keycodes 17, 22, and 2055.
try {
  inputDevice.supportKeys(1, [17, 22, 2055]).then((supportResult: Array<Boolean>) => {
    console.log(`Query result: ${JSON.stringify(supportResult)}`);
  });
} catch (error) {
  console.log(`Query failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.supportKeysSync10+

supportKeysSync(deviceId: number, keys: Array&lt;KeyCode&gt;): Array&lt;boolean&gt;

Checks whether the input device supports the specified keycode value.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes Unique ID of the input device. If the same physical device is repeatedly inserted and removed, its ID changes.
keys Array&lt;KeyCode&gt; Yes Keycodes to be queried. A maximum of five keycodes can be specified.

Return value

Parameters Description
Array&lt;boolean&gt; Result indicating whether the input device supports the keycode value. The value true indicates yes, and the value false indicates no.

Example

// Check whether the input device whose ID is 1 supports keycodes 17, 22, and 2055.
try {
  let supportResult: Array<Boolean> = inputDevice.supportKeysSync(1, [17, 22, 2055])
  console.log(`Query result: ${JSON.stringify(supportResult)}`)
} catch (error) {
  console.log(`Query failed, error: ${JSON.stringify(error, [`code`, `message`])}`)
}

inputDevice.getKeyboardType9+

getKeyboardType(deviceId: number, callback: AsyncCallback&lt;KeyboardType&gt;): void

Obtains the keyboard type of an input device. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes Unique ID of the input device. If the same physical device is repeatedly inserted and removed, its ID changes.
callback AsyncCallback&lt;KeyboardType&gt; Yes Callback used to return the result.

Example

// Query the keyboard type of the input device whose ID is 1.
try {
  inputDevice.getKeyboardType(1, (error: Error, type: Number) => {
    if (error) {
      console.log(`Failed to get keyboard type, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Keyboard type: ${JSON.stringify(type)}`);
  });
} catch (error) {
  console.log(`Failed to get keyboard type, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getKeyboardType9+

getKeyboardType(deviceId: number): Promise&lt;KeyboardType&gt;

Obtains the keyboard type of an input device. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes Unique ID of the input device. If the same physical device is repeatedly inserted and removed, its ID changes.

Return value

Parameters Description
Promise&lt;KeyboardType&gt; Promise used to return the result.

Example

// Query the keyboard type of the input device whose ID is 1.
try {
  inputDevice.getKeyboardType(1).then((type: Number) => {
    console.log(`Keyboard type: ${JSON.stringify(type)}`);
  });
} catch (error) {
  console.log(`Failed to get keyboard type, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getKeyboardTypeSync10+

getKeyboardTypeSync(deviceId: number): KeyboardType

Obtains the keyboard type of the input device.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Parameters

Name Type Mandatory Description
deviceId number Yes Unique ID of the input device. If the same physical device is repeatedly inserted and removed, its ID changes.

Return value

Parameters Description
KeyboardType Keyboard type.

Example

// Query the keyboard type of the input device whose ID is 1.
try {
  let type: number = inputDevice.getKeyboardTypeSync(1)
  console.log(`Keyboard type: ${JSON.stringify(type)}`)
} catch (error) {
  console.log(`Failed to get keyboard type, error: ${JSON.stringify(error, [`code`, `message`])}`)
}

inputDevice.setKeyboardRepeatDelay10+

setKeyboardRepeatDelay(delay: number, callback: AsyncCallback&lt;void&gt;): void

Sets the keyboard repeat delay. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

System API: This is a system API.

Parameters

Name Type Mandatory Description
delay number Yes Keyboard repeat delay, in ms. The value range is [300, 1000] and the default value is 500.
callback AsyncCallback&lt;void&gt; Yes Callback used to return the result.

Example

try {
  inputDevice.setKeyboardRepeatDelay(350, (error: Error) => {
    if (error) {
      console.log(`Set keyboard repeat delay failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Set keyboard repeat delay success`);
  });
} catch (error) {
  console.log(`Set keyboard repeat delay failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.setKeyboardRepeatDelay10+

setKeyboardRepeatDelay(delay: number): Promise&lt;void&gt;

Sets the keyboard repeat delay. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

System API: This is a system API.

Parameters

Name Type Mandatory Description
delay number Yes Keyboard repeat delay, in ms. The value range is [300, 1000] and the default value is 500.

Return value

Parameters Description
Promise&lt;void&gt; Promise used to return the result.

Example

try {
  inputDevice.setKeyboardRepeatDelay(350).then(() => {
    console.log(`Set keyboard repeat delay success`);
  });
} catch (error) {
  console.log(`Set keyboard repeat delay failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getKeyboardRepeatDelay10+

getKeyboardRepeatDelay(callback: AsyncCallback&lt;number&gt;): void

Obtains the keyboard repeat delay. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

System API: This is a system API.

Parameters

Name Type Mandatory Description
callback AsyncCallback&lt;number&gt; Yes Callback used to return the result.

Example

try {
  inputDevice.getKeyboardRepeatDelay((error: Error, delay: Number) => {
    if (error) {
      console.log(`Get keyboard repeat delay failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Get keyboard repeat delay success`);
  });
} catch (error) {
  console.log(`Get keyboard repeat delay failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getKeyboardRepeatDelay10+

getKeyboardRepeatDelay(): Promise&lt;number&gt;

Obtains the keyboard repeat delay. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

System API: This is a system API.

Return value

Parameters Description
Promise&lt;number&gt; Promise used to return the result.

Example

try {
  inputDevice.getKeyboardRepeatDelay().then((delay: Number) => {
    console.log(`Get keyboard repeat delay success`);
  });
} catch (error) {
  console.log(`Get keyboard repeat delay failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.setKeyboardRepeatRate10+

setKeyboardRepeatRate(rate: number, callback: AsyncCallback&lt;void&gt;): void

Sets the keyboard repeat rate. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

System API: This is a system API.

Parameters

Name Type Mandatory Description
rate number Yes Keyboard repeat rate, in ms/time. The value range is [36, 100] and the default value is 50.
callback AsyncCallback&lt;void&gt; Yes Callback used to return the result.

Example

try {
  inputDevice.setKeyboardRepeatRate(60, (error: Error) => {
    if (error) {
      console.log(`Set keyboard repeat rate failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Set keyboard repeat rate success`);
  });
} catch (error) {
  console.log(`Set keyboard repeat rate failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.setKeyboardRepeatRate10+

setKeyboardRepeatRate(rate: number): Promise&lt;void&gt;

Sets the keyboard repeat rate. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

System API: This is a system API.

Parameters

Name Type Mandatory Description
rate number Yes Keyboard repeat rate, in ms/time. The value range is [36, 100] and the default value is 50.

Return value

Parameters Description
Promise&lt;void&gt; Promise used to return the result.

Example

try {
  inputDevice.setKeyboardRepeatRate(60).then(() => {
    console.log(`Set keyboard repeat rate success`);
  });
} catch (error) {
  console.log(`Set keyboard repeat rate failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getKeyboardRepeatRate10+

getKeyboardRepeatRate(callback: AsyncCallback&lt;number&gt;): void

Obtains the keyboard repeat rate. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

System API: This is a system API.

Parameters

Name Type Mandatory Description
callback AsyncCallback&lt;number&gt; Yes Callback used to return the result.

Example

try {
  inputDevice.getKeyboardRepeatRate((error: Error, rate: Number) => {
    if (error) {
      console.log(`Get keyboard repeat rate failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
      return;
    }
    console.log(`Get keyboard repeat rate success`);
  });
} catch (error) {
  console.log(`Get keyboard repeat rate failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

inputDevice.getKeyboardRepeatRate10+

getKeyboardRepeatRate(): Promise&lt;number&gt;

Obtains the keyboard repeat rate. This API uses a promise to return the result.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

System API: This is a system API.

Return value

Parameters Description
Promise&lt;number&gt; Promise used to return the result.

Example

try {
  inputDevice.getKeyboardRepeatRate().then((rate: Number) => {
    console.log(`Get keyboard repeat rate success`);
  });
} catch (error) {
  console.log(`Get keyboard repeat rate failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
}

DeviceListener9+

Defines the listener for hot swap events of an input device.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Name Type Readable Writable Description
type ChangedType Yes No Device change type, which indicates whether an input device is inserted or removed.
deviceId number Yes No Unique ID of the input device. If the same physical device is repeatedly inserted and removed, its ID changes.

InputDeviceData

Defines the information about an input device.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Name Type Readable Writable Description
id number Yes No Unique ID of the input device. If the same physical device is repeatedly inserted and removed, its ID changes.
name string Yes No Name of the input device.
sources Array&lt;SourceType&gt; Yes No Source type of the input device. For example, if a keyboard is attached with a touchpad, the device has two input sources: keyboard and touchpad.
axisRanges Array&lt;AxisRange&gt; Yes No Axis information of the input device.
bus9+ number Yes No Bus type of the input device.
product9+ number Yes No Product information of the input device.
vendor9+ number Yes No Vendor information of the input device.
version9+ number Yes No Version information of the input device.
phys9+ string Yes No Physical address of the input device.
uniq9+ string Yes No Unique ID of the input device.

AxisType9+

Defines the axis type of an input device.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Name Type Readable Writable Description
touchmajor string Yes No touchmajor axis.
touchminor string Yes No touchminor axis.
toolminor string Yes No toolminor axis.
toolmajor string Yes No toolmajor axis.
orientation string Yes No Orientation axis.
pressure string Yes No Pressure axis.
x string Yes No X axis.
y string Yes No Y axis.
null string Yes No None.

AxisRange

Defines the axis range of an input device.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Name Type Readable Writable Description
source SourceType Yes No Input source type of the axis.
axis AxisType Yes No Axis type.
max number Yes No Maximum value of the axis.
min number Yes No Minimum value of the axis.
fuzz9+ number Yes No Fuzzy value of the axis.
flat9+ number Yes No Benchmark value of the axis.
resolution9+ number Yes No Resolution of the axis.

SourceType9+

Input source type of the axis. For example, if a mouse reports an x-axis event, the input source of the x-axis is the mouse.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Name Type Readable Writable Description
keyboard string Yes No The input device is a keyboard.
touchscreen string Yes No The input device is a touchscreen.
mouse string Yes No The input device is a mouse.
trackball string Yes No The input device is a trackball.
touchpad string Yes No The input device is a touchpad.
joystick string Yes No The input device is a joystick.

ChangedType9+

Defines the change type for the hot swap event of an input device.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Name Type Readable Writable Description
add string Yes No An input device is inserted.
remove string Yes No An input device is removed.

KeyboardType9+

Enumerates the keyboard types.

System capability: SystemCapability.MultimodalInput.Input.InputDevice

Name Value Description
NONE 0 Keyboard without keys.
UNKNOWN 1 Keyboard with unknown keys.
ALPHABETIC_KEYBOARD 2 Full keyboard.
DIGITAL_KEYBOARD 3 Keypad.
HANDWRITING_PEN 4 Stylus.
REMOTE_CONTROL 5 Remote control.

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