V2.4.3 cc.audioEngine not update volume on iOS device

Cocos Creator
#1

I have implemented sound volume control and its working fine on web/android device but it did nothing on iOS during gameplay but it will update if set on the very early stage of program

#2

Sorry, we tested the sound volume setting, but can’t reproduce the issue you met on iOS

what’s the version of the iOS you use ?
did you mean browsers on iOS or native app on iOS ?

#3

I’m sorry for not clearly

I have tested on Web Mobile build of 2.4.3

iPhone 5s, ios 12.5.1, Chrome, and Safari - not working
iPad gen 5, ios 14.4, Chrome, and Safari - not working

the code called was
cc.audioEngine.setMusicVolume()
cc.audioEngine.setEffectsVolume()

the same build works as aspected on PC, Android (Chrome)

#4

strange, I tested but did not encounter that issue
here’s my test code

cc.Class({
    extends: cc.Component,

    properties: {
        audio: {
            type: cc.AudioClip,
            default: null
        },
    },

    playButtonCallback () {
        cc.audioEngine.playMusic(this.audio, false, 1);
    },

    sliderEventCallback (slider) {
        // music volume control still works
        cc.audioEngine.setMusicVolume(slider.progress); 
    },

    stopButtonCallback () {
        cc.audioEngine.stopMusic();
    },
});
#5

after investigate, the issue is DOM vs Web download mode.

in iOS’s browser, DOM audio won’t change if set volume during play.

now the issue is fixed for me. Thankyou.

#6

Oh yes, that’s a known issue on iOS’s browser
Sorry forgot that