android - 如何使用语音控制音乐播放器

Question

我正在开发一个应用程序，它可以使用语音控制音乐播放器。例如，当我说“播放”音乐播放器播放歌曲，或者说“下一个”音乐播放器将播放下一首歌曲等时。我已经谷歌了，但没有找到任何想法或源代码。

问题：

1. 使用语音控制音乐播放器的想法

2. 源代码示例。

预先感谢。

可能相关：Android - 语音控制 - 媒体意图

Answer 1

你将需要这个：

    private void playNextMusic() {
    Intent i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_NEXT));
    sendOrderedBroadcast(i, null);

    i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_NEXT));
    sendOrderedBroadcast(i, null);

    playPlayMusic();
}

private void playPreviousMusic() {
    Intent i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PREVIOUS));
    sendOrderedBroadcast(i, null);

    i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_PREVIOUS));
    sendOrderedBroadcast(i, null);

    playPlayMusic();
}

private void playPauseMusic() {
    Intent i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PAUSE));
    sendOrderedBroadcast(i, null);

    i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_PAUSE));
    sendOrderedBroadcast(i, null);
}

private void playPlayMusic() {
    Intent i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PLAY));
    sendOrderedBroadcast(i, null);

    i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_PLAY));
    sendOrderedBroadcast(i, null);
}

private void playStopMusic() {
    Intent i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_STOP));
    sendOrderedBroadcast(i, null);

    i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.putExtra(Intent.EXTRA_KEY_EVENT,new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_STOP));
    sendOrderedBroadcast(i, null);
}