判断手机是否处于静音、震动、正常模式

查看frameworks/base/media/java/android/media/AudioManager.java

    /**
     * Ringer mode that will be silent and will not vibrate. (This overrides the
     * vibrate setting.)
     *
     * @see #setRingerMode(int)
     * @see #getRingerMode()
     */
    public static final int RINGER_MODE_SILENT = 0;

    /**
     * Ringer mode that will be silent and will vibrate. (This will cause the
     * phone ringer to always vibrate, but the notification vibrate to only
     * vibrate if set.)
     *
     * @see #setRingerMode(int)
     * @see #getRingerMode()
     */
    public static final int RINGER_MODE_VIBRATE = 1;

    /**
     * Ringer mode that may be audible and may vibrate. It will be audible if
     * the volume before changing out of this mode was audible. It will vibrate
     * if the vibrate setting is on.
     *
     * @see #setRingerMode(int)
     * @see #getRingerMode()
     */
    public static final int RINGER_MODE_NORMAL = 2;

通过AudioManager 可看出存在三种状态

    /**
     * Returns the current ringtone mode.
     *
     * @return The current ringtone mode, one of {@link #RINGER_MODE_NORMAL},
     *         {@link #RINGER_MODE_SILENT}, or {@link #RINGER_MODE_VIBRATE}.
     * @see #setRingerMode(int)
     */
    public int getRingerMode() {
        final IAudioService service = getService();
        try {
            return service.getRingerModeExternal();
        } catch (RemoteException e) {
            throw e.rethrowFromSystemServer();
        }
    }

则想知道当前手机铃音状态,可直接getRingerMode()获取:

  import android.media.AudioManager;

            AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);                     
            final int ringerMode = am.getRingerMode();
            switch (ringerMode) {
                case AudioManager.RINGER_MODE_NORMAL:
                    //normal
                    break;
                case AudioManager.RINGER_MODE_VIBRATE:
                    //vibrate
                    break;
                case AudioManager.RINGER_MODE_SILENT:
                    //silent
                    break;
            }

当用户设置情景模式时，系统会广播一个 RING_MODE_CHANGE_ACTION 消息，我们也可以定义一个广播接收器，监听此消息，然后通过 AudioManager 提供的接口判断当前的情景模式做出特定的处理。

private BroadcastReceiver mReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(Context context, Intent intent) {
		if (intent.getAction().equals(AudioManager.RING_MODE_CHANGE_ACTION)) {
			AudioManager audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
			final int ringerMode = am.getRingerMode();
			switch (ringerMode) {
				case AudioManager.RINGER_MODE_NORMAL:
					//normal
					break;
				case AudioManager.RINGER_MODE_VIBRATE:
					//vibrate
					break;
				case AudioManager.RINGER_MODE_SILENT:
					//silent
					break;
			}
		}
	}
}