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This protocol carries only account-level and device-level global events. Set it through -[MeetingKit addDelegate:]. For all in-room events, implement MeetingKitRoomDelegate and pass it in when you create a room with createRoomWithDelegate:.
Since 2.0.0, all in-room callbacks in this protocol have moved to MeetingKitRoomDelegate, and every method signature now takes the room instance that is the event source as its first parameter. If your app still implements only MeetingKitDelegate, it receives no in-room events at all. Update your code accordingly by referring to MeetingKitRoomDelegate.

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Audio callbacks

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onAudioRouteChange:previousRoute:()

- (void)onAudioRouteChange:(SEAAudioRoute)route previousRoute:(SEAAudioRoute)previousRoute Called when the audio route changes. The audio route maps to the single AVAudioSession in the process, so this is a device-level event, independent of how many rooms you have entered. The SDK fires this callback when the audio route changes. See: SEAAudioRoute

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Other callbacks

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onApplicationPerformance:cpuUsage:()

- (void)onApplicationPerformance:(CGFloat)memory cpuUsage:(CGFloat)cpuUsage Called with the app’s performance usage. Reports the overall usage of the host process, so this is a process-level event.