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Added in API level 16

Summary: Ctors | Methods | Inherited Methods | [Expand All]

public static abstract class MediaRouter.VolumeCallback
extends Object

java.lang.Object
↳	android.media.MediaRouter.VolumeCallback

接收有关音量变化的事件的界面。该接口的所有方法都将从应用程序的主线程中调用。

一个VolumeCallback将只接收与注册回调的路由相关的事件。

也可以看看：

Public constructors
`MediaRouter.VolumeCallback()`

Public methods
`abstract void`	`onVolumeSetRequest(MediaRouter.RouteInfo info, int volume)` 当路线的音量应设置为给定值时调用
`abstract void`	`onVolumeUpdateRequest(MediaRouter.RouteInfo info, int direction)` 当路线的体积应增加或减少时调用。

From class java.lang.Object

Added in API level 16

MediaRouter.VolumeCallback ()

Added in API level 16

void onVolumeSetRequest (MediaRouter.RouteInfo info, 
                int volume)

当路线的音量应设置为给定值时调用

Parameters
`info`	`MediaRouter.RouteInfo`: the route affected by this event
`volume`	`int`: an integer indicating the new volume value that should be used, always between 0 and the value set by `setVolumeMax(int)`.

Added in API level 16

void onVolumeUpdateRequest (MediaRouter.RouteInfo info, 
                int direction)

当路线的体积应增加或减少时调用。

Parameters
`info`	`MediaRouter.RouteInfo`: the route affected by this event
`direction`	`int`: an integer indicating whether the volume is to be increased (positive value) or decreased (negative value). For bundled changes, the absolute value indicates the number of changes in the same direction, e.g. +3 corresponds to three "volume up" changes.