How to inhibit "Loud music may harm your hearing..." warning in Android

android

Solution

Since you cannot disable the systems message, and you will also have a problem when the user manually lowers the volume, I suggest you do a series of controls which will help with that. To max the volume:

public void maxVolume() {
    AudioManager audioManager = (AudioManager)context.getSystemService(this.AUDIO_SERVICE);
    while ( audioManager.getStreamVolume(AudioManager.STREAM_MUSIC) < audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC)) {
        audioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC, AudioManager.ADJUST_RAISE, 0);
    }
}

To prevent users from manually changing volume:

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if ((keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) 
         || (keyCode == KeyEvent.KEYCODE_VOLUME_UP) 
         || (keyCode == KeyEvent.KEYCODE_VOLUME_MUTE)) {
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

You can call maxVolume() in your onCreate method, and later call it just before you start using the jack output procedure to make sure the system has not changed your volume. Alternatively you can register a listener to listen for volume changes, make maxVolume() static and call it from the listener. Hope it helps you out!

Problem

I have an Android application for a Samsung tablet that uses an external device which draws its power from the tablet headphone jack. When the external device is powered on (by programmatically maxing out the volume), Android briefly displays a warning popup saying: "Loud music may harm your hearing if you listen to it for too long..." I would like that message to not be displayed. Here's the offending line of code: ``` mAudioMgr.setStreamVolume(AudioManager.STREAM_MUSIC, mAudioMgr.getStreamMaxVolume(AudioManager.STREAM_MUSIC), 0); ``` It's not an option to only turn it up halfway. In fact, I've seen the tablet display the warning (when changing the volume by hand) even on volume settings lower than the max setting. And yes, I record the original volume, and restore it when we're done with the external device. Thanks for any suggestions.

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