如何从DocumentsContract.Document获取MediaStore元数据？

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

ContentResolver contentResolver = getContentResolver();
Uri documentUri = DocumentsContract.buildDocumentUri(authority, documentId);
String[] projection = new String[] {
    MediaStore.MediaColumns.DISPLAY_NAME,
    MediaStore.MediaColumns.MIME_TYPE,
    MediaStore.MediaColumns.SIZE,
    // 其他你需要的元数据列
};
Cursor cursor = contentResolver.query(documentUri, projection, null, null, null);

if (cursor != null && cursor.moveToFirst()) {
    String displayName = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DISPLAY_NAME));
    String mimeType = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.MIME_TYPE));
    long size = cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.SIZE));

    // 使用获取到的元数据进行操作
}

// 关闭Cursor
if (cursor != null) {
    cursor.close();
}