搜索与mediastore音乐文件 [英] Searching for music files with mediastore

问题描述

我一直在研究这个好几个小时。我看着机器人的javadoc - MediaStore我只是不明白这一点。我看过的例子。什么也没有。

I have been researching this for hours now. I've looked at android javadoc - MediaStore and I just don't get it. I've looked for examples. Nothing.

我要搜索音乐库中的字符串。我主要的想法在我的脑海（获取音乐库数据库，搜索它，就像您一个SQLite数据库），但我硬是不知道该怎么做。

I want to search the music library for a string. I have the main idea in my mind (get music library DB, search it like you would a sqlite DB) but I literally have no idea how to do it.

我还发现了URI外部SD媒体文件 - MediaStore.Audio.Media.EXTERNAL_CONTENT_URI，

I have also found the URI for external SD media files - MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,

但我真的不知道该怎么该怎么做。

but I don't really know what to do with this.

一些出发点就好了。

感谢您。

推荐答案

的 MediaStore 更多或更少的是的一个SQLite数据库。有很多方法可以查询。按专辑，艺术家，按播放列表，按歌曲，等等。这将返回所有歌曲光标，例如

The MediaStore more or less is an sqlite DB. There are many ways to query it. By album, by artist, by playlist, by song, and so on. This will return a Cursor of all songs, for example.

Cursor cursor = getContentResolver().query(
    MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, 
    null, 
    null, 
    null, 
    MediaStore.Audio.Media.TITLE + " ASC");

然后，您可以从它那里得到特定的列像这样：

You can then get specific columns from it like so:

while (cursor.moveToNext()) {
    String title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
    // Whatever else you need
}

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