Connecting Hardware Buttons

If the device has hardware buttons for things like "Play", "Pause", "Skip Track", etc., the application should use SpPlaybackXXX() functions to perform these actions in the Spotify Embedded SDK. The following table shows which functions exist and it also lists the corresponding callbacks and "getter" functions.

Action	Function	Callback/Event	Getter
Play	SpPlaybackPlay()	kSpPlaybackNotifyPlay	SpPlaybackIsPlaying()
Pause	SpPlaybackPause()	kSpPlaybackNotifyPlay	SpPlaybackIsPlaying()
Skip to next track	SpPlaybackSkipToNext()	kSpPlaybackNotifyPlay	N/A
Skip to previous track	SpPlaybackSkipToPrev()	kSpPlaybackNotifyPlay	N/A
Seek	SpPlaybackSeek()	SpCallbackPlaybackSeek()	SpPlaybackGetPosition()
Volume	SpPlaybackUpdateVolume()	SpCallbackPlaybackApplyVolume()	SpPlaybackGetVolume()
Shuffle	SpPlaybackEnableShuffle()	kSpPlaybackNotifyShuffleOn, kSpPlaybackNotifyShuffleOff	SpPlaybackIsShuffled()
Repeat	SpPlaybackEnableRepeat()	kSpPlaybackNotifyRepeatOn, kSpPlaybackNotifyRepeatOff	SpPlaybackIsRepeated()

Note: If the user is playing on another Connect-enabled device, the function SpPlaybackPlay will pull playback to the device. This way, pressing the "Play" button on the device has the same effect as pushing playback to the device by using the Spotify mobile app. The device will become the active device.