Whether blocked by the signal emitted by the optical sensor, to determine whether there is wear headphones, music playback, stop playback off, resume play reattachment
Use the light sensor to block the signal to determine whether you are wearing a headset, remove and stop playing while the music is playing, and re-wear it to continue playing ...
Use the light sensor to block the signal sent out to determine whether the headset is worn. During music playing, remove it to stop playing, and then wear it again to continue playing<br>