类 Gyroscope

En

Use Gyroscope.instance to obtain the unique Gyroscope reference. Do not call the constructor directly. The callback handler of listen() accepts two parameters:

  • onOrientationChange: A function with the signature function onOrientationChange(absolute: Boolean, info: RotationInfo): void.
  • absolute: Indicates whether the device can provide absolute orientation data (toward the Earth coordinate system) or an arbitrary coordinate system determined by the device. For more information about coordinate systems, see Orientation and motion data explained.
  • info: A RotationInfo type parameter that stores the device's rotation values. For browser compatibility, refer to: (http://caniuse.com/#search=deviceorientation).

Zh

通过 Gyroscope.instance 获取唯一的 Gyroscope 引用，不要直接调用构造函数。 listen() 的回调处理器接受两个参数：

  • function onOrientationChange: 一个函数，签名为 function onOrientationChange(absolute: Boolean, info: RotationInfo): void。
  • absolute: 指明设备是否能够提供绝对方位数据（指向地球坐标系），或者由设备决定的任意坐标系。关于坐标系更多信息，请参阅 方位和运动数据解释。
  • info: RotationInfo 类型的参数，保存设备的旋转值。 浏览器兼容性信息，请参阅：(http://caniuse.com/#search=deviceorientation)。

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构造函数

constructor

访问器

instance

方法

event hasListener off offAll offAllCaller on once

构造函数

constructor

访问器

静态instance

方法

event

  • event(type: string, data?: any): boolean

    参数

    • type: string

      The type of event.

    • 可选data: any

      (Optional) Data to pass to the callback. If multiple parameters p1, p2, p3, ... need to be passed, use an array structure such as [p1, p2, p3, ...]. If a single parameter p needs to be passed and p is an array, use a structure such as [p]. For other single parameters p, you can directly pass parameter p. If data is Event.EMPTY, it means passing an Event object to the callback function. Note that it is not passing Event.TEMP, but an independent Event object.

    返回 boolean

    True if there are listeners for this event type, false otherwise.

    En

    Dispatch an event.

    Zh

    派发事件。

hasListener

  • hasListener(type: string): boolean

    参数

    • type: string

      The type of event.

    返回 boolean

    True if a listener of the specified type is registered, false otherwise.

    En

    Check if the EventDispatcher object has any listeners registered for a specific type of event.

    Zh

    检查 EventDispatcher 对象是否为特定事件类型注册了任何侦听器。

off

offAll

offAllCaller

on

  • on(type: string, listener: Function): EventDispatcher

    参数

    • type: string

      The type of event.

    • listener: Function

      The listener function.

    返回 EventDispatcher

    This EventDispatcher object.

    En

    Register an event listener object with the EventDispatcher object so that the listener receives event notifications.

    Zh

    使用 EventDispatcher 对象注册指定类型的事件侦听器对象，以使侦听器能够接收事件通知。

  • on(type: string, caller: any, listener: Function, args?: any[]): EventDispatcher

    参数

    • type: string

      The type of event.

    • caller: any

      The execution scope of the event listener function.

    • listener: Function

      The listener function.

    • 可选args: any[]

      (Optional) The callback parameters of the event listener function.

    返回 EventDispatcher

    This EventDispatcher object.

    En

    Register an event listener object with the EventDispatcher object so that the listener receives event notifications.

    Zh

    使用 EventDispatcher 对象注册指定类型的事件侦听器对象，以使侦听器能够接收事件通知。

once

  • once(type: string, listener: Function): EventDispatcher

    参数

    • type: string

      The type of event.

    • listener: Function

      The listener function.

    返回 EventDispatcher

    This EventDispatcher object.

    En

    Register an event listener object with the EventDispatcher object so that the listener receives event notifications. This event listener responds once and is automatically removed after the first call.

    Zh

    使用 EventDispatcher 对象注册指定类型的事件侦听器对象，以使侦听器能够接收事件通知，此侦听事件响应一次后自动移除。

  • once(
        type: string,
        caller: any,
        listener: Function,
        args?: any[],
    ): EventDispatcher

    参数

    • type: string

      The type of event.

    • caller: any

      The execution scope of the event listener function.

    • listener: Function

      The listener function.

    • 可选args: any[]

      (Optional) The callback parameters of the event listener function.

    返回 EventDispatcher

    This EventDispatcher object.

    En

    Register an event listener object with the EventDispatcher object so that the listener receives event notifications. This event listener responds once and is automatically removed after the first call.

    Zh

    使用 EventDispatcher 对象注册指定类型的事件侦听器对象，以使侦听器能够接收事件通知，此侦听事件响应一次后自动移除。

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