#AudioManager

来电铃声响起后，可通过此代码实现静音而非挂断。

private static int previousMuteMode = -1;

/**
 * 来电静音
 * 
 * @param context
 */
private void...            

实现免提开启和关闭，需要添加的权限

/**
 * 免提
 * 
 * @param context
 */
private void toggleSpeaker(Context context)
{
    AudioManager am =...            

Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
mMediaPlayer = new MediaPlayer();
mMediaPl...