Mute the volume in a loop. - Android Media

Android examples for Media:Media Volume

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Description

Mute the volume in a loop.

Demo Code


//package com.java2s;
import android.content.Context;
import android.media.AudioManager;

public class Main {
    private static AudioManager audio;

    /**//from www.  j  a v a  2 s .  c om
     * Mute the volume in a loop.
     * 
     * @param c Context
     * @return Initial volume
     */
    public static synchronized int muteMediaVolume(Context c) {
        final int STEP = 5;
        final int v = getMediaVolume(c);
        int z = v;
        int ratio = v / STEP;
        if (v >= STEP) {
            for (int i = 0; i < STEP && v >= STEP; i++) {
                z -= ratio;
                setMediaVolume(c, z);
                sleep(500);
            }
            ;
        }
        setMediaVolume(c, 0);

        return v;
    }

    /**
     * Get the media volume
     * @param c Context
     * @return Volume
     */
    public static synchronized int getMediaVolume(Context c) {
        init(c);
        return audio.getStreamVolume(AudioManager.STREAM_MUSIC);
    }

    /**
     * Set media volume
     * @param c Context
     * @param volume Volume
     */
    public static synchronized void setMediaVolume(Context c, int volume) {
        init(c);
        audio.setStreamVolume(AudioManager.STREAM_MUSIC, volume,
                AudioManager.FLAG_SHOW_UI);
    }

    public static void sleep(int ms) {
        try {
            Thread.sleep(ms);
        } catch (InterruptedException e) {
        }
    }

    /**
     * Get the music manager
     * @param context
     */
    private static void init(Context context) {
        if (audio == null)
            audio = (AudioManager) context
                    .getSystemService(Context.AUDIO_SERVICE);
    }
}

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