类 Accelerator

En

Use Accelerator.instance to get the unique Accelerator reference. Do not call the constructor directly. The callback handler of listen() accepts four parameters:

  • acceleration: The acceleration given to the device without gravity.
  • accelerationIncludingGravity: The total acceleration (including gravity).
  • rotationRate: The rate of rotation.
  • interval: The time interval for the acceleration data获取 (in milliseconds). NOTE For example, while the alpha in the rotationRate is documented as the z-axis rotation angle in both Apple and Mozilla documentation, actual testing shows it to be the x-axis rotation angle. To make the values represented by each property consistent with the documentation, the actual values have been swapped with other properties. The mappings are as follows:
  • alpha uses the gamma value.
  • beta uses the alpha value.
  • gamma uses the beta value. It is currently unclear which is correct, and this serves as a note.

Zh

通过 Accelerator.instance 获取唯一的 Accelerator 引用，不要直接调用构造函数。 listen() 的回调处理器接受四个参数：

  • acceleration: 设备的加速度（不包含重力）。
  • accelerationIncludingGravity: 总加速度（包含重力）。
  • rotationRate: 自转速率。
  • interval: 获取加速度数据的时间间隔（毫秒）。 注意： 例如，rotationRate 中的 alpha 在 Apple 和 Mozilla 文档中都是 z 轴旋转角度，但实测是 x 轴旋转角度。为了使各属性表示的值与文档所述相同，实际值与其他属性进行了对调。 具体对应如下：
  • alpha 使用 gamma 值。
  • beta 使用 alpha 值。
  • gamma 使用 beta 值。 目前孰是孰非尚未可知，以此为注。

层级 (查看层级一览)

构造函数

constructor

访问器

instance

方法

event hasListener off offAll offAllCaller on once getTransformedAcceleration

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。

静态getTransformedAcceleration

  • getTransformedAcceleration(acceleration: AccelerationInfo): AccelerationInfo

    参数

    返回 AccelerationInfo

    The transformed acceleration information.

    En

    Converts the acceleration values to visually correct acceleration values. This method depends on Browser.window.orientation and may not work on some low-end devices.

    Zh

    将加速度值转换为视觉上正确的加速度值。此方法依赖于 Browser.window.orientation，在部分低端机可能无效。

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