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//
// SDLManagerDelegate.h
// SmartDeviceLink-iOS
//
// Created by Joel Fischer on 6/7/16.
// Copyright © 2016 smartdevicelink. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "SDLAudioStreamingState.h"
#import "SDLHMILevel.h"
#import "SDLSystemContext.h"
NS_ASSUME_NONNULL_BEGIN
@protocol SDLManagerDelegate <NSObject>
/**
* Called upon a disconnection from the remote system.
*/
- (void)managerDidDisconnect;
/**
* Called when the HMI level state of this application changes on the remote system. This is equivalent to the application's state changes in iOS such as foreground, background, or closed.
*
* @param oldLevel The previous level which has now been left.
* @param newLevel The current level.
*/
- (void)hmiLevel:(SDLHMILevel)oldLevel didChangeToLevel:(SDLHMILevel)newLevel;
@optional
/**
* Called when the audio streaming state of this application changes on the remote system. This refers to when streaming audio is audible to the user.
*
* @param oldState The previous state which has now been left.
* @param newState The current state.
*/
- (void)audioStreamingState:(nullable SDLAudioStreamingState)oldState didChangeToState:(SDLAudioStreamingState)newState;
/**
* Called when the system context of this application changes on the remote system. This refers to whether or not a user-initiated interaction is in progress, and if so, what it is.
*
* @param oldContext The previous context which has now been left.
* @param newContext The current context.
*/
- (void)systemContext:(nullable SDLSystemContext)oldContext didChangeToContext:(SDLSystemContext)newContext;
@end
NS_ASSUME_NONNULL_END
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