运行 Unity 应用程序时，停止或允许在后台播放来自其他应用程序的音频。
此设置在 iOS 和 Android 平台之间共享。\ \ 如果将此设置为 true，则 Unity 应用程序在后台停止来自其他应用程序的音频，如果设置为 false，则后台应用程序中的音频将继续与 Unity 应用程序一起播放。\ \ 注意：从 Android Marshmallow (6.0) 开始，将此设置为 false 会在手机来电时（手机响铃时）将 Unity 应用程序静音。如果要在较低版本的 Android 上出现此行为，您必须将 READ_PHONE_STATE 权限添加至清单。有关编译清单的更多信息，请参阅 Android 文档。
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