在对话框中按下音量调高时隐藏 UI [英] Hide UI when volume up down pressed in a dialog

问题描述

有没有办法在按下 volume_up/volume_down 键时隐藏音量 ui.我知道它可以通过一个活动来完成，当它在显示对话框时被触发时似乎不起作用.

Is there a way to hide the volume ui when the volume_up/volume_down key is pressed. I understand that it can be done with an activity when it doesnt seem to work when tiggered when a dialog is shown.

有解决办法吗?

推荐答案

这应该适用于 Dialog 类:

This should work with the Dialog class:

AudioManager man = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
dialog.setOnKeyListener(new OnKeyListener() {
    @Override
    public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
        switch (event.getKeyCode()) {
            case KeyEvent.KEYCODE_VOLUME_UP:
                man.adjustStreamVolume(AudioManager.STREAM_MUSIC,
                    AudioManager.ADJUST_RAISE,
                    AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);
                return true;
            case KeyEvent.KEYCODE_VOLUME_DOWN:
                man.adjustStreamVolume(AudioManager.STREAM_MUSIC,
                    AudioManager.ADJUST_LOWER,
                    AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);
                return true;
           default:
                return super.onKeyDown(keyCode, event);
        }
    }
});

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