问题
I was wondering if someone has succefully managed to change the volume with the spotify app API
I can without hassle change the playstate with player.playing = true; but player.volume=0.5 will not work. Must I add a observer for this?
回答1:
The documentation for the Player object does indeed say that you can set volume as a float from 0.0 to 1.0.
https://developer.spotify.com/technologies/apps/docs/beta/f19ff300f8.html
It's possible you're only allowed to change the volume if your app initiated the playback that's occurring.
来源：https://stackoverflow.com/questions/10822979/change-volume-with-spotify-app-api