objective-c - SKAudioNode的音量

Question

我正在使用SKAudioNode播放游戏音乐。我想知道:节点的volume的最大值和最小值是多少？我正在使用SKAction进行更改:[SKAction changeVolumeTo:0 duration:0];非常感谢您的帮助!

Answer 1

如果您按ctrl键单击Xco​​de中对代码的操作，则会弹出其中包含参数的详细信息

class func changeVolume(to v: Float, duration: TimeInterval) ->SKAction

Description - Creates an action that changes an audio node’s volume toa new value. When the action executes, the audio node’s volumeanimates from its current value to its new value. For moreinformation, see AVAudio3DMixing.

This action - v The new value for the volume. The value should bebetween 0.0 (silence) and 1.0 (maximum value for source audio),inclusive.

duration - The duration of the animation, in seconds.

Returns A new action object.

SDKs iOS 9.0+, macOS 10.11+, tvOS 9.0+, watchOS 2.0+