Question

如---- [doc.docx.xls.xlsx.ppt.pptx.pdf]，就像下面的代码一样。但查询结果只有pdf.doc.xls，而不是其他，我很困惑。我发现很多答案都不是我想要的

private void doSearch() {
    String[] projection = new String[]{
            MediaStore.Files.FileColumns.DATA,
            MediaStore.Files.FileColumns.TITLE,
            MediaStore.Files.FileColumns.MIME_TYPE};

    String selection = MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
            + " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
            + " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
            + " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
            + " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
            + " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
            + " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? ";

    String[] selectionArgs = new String[]{
            "application/vnd.openxmlformats-officedocument.presentationml.presentation",
            "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
            "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
            "application/vnd.ms-powerpoint",
            "application/msword",
            "application/pdf",
            "application/vnd.ms-excel"};

    Cursor cursor = getContentResolver().query(MediaStore.Files.getContentUri("external"),
            projection,
            selection,
            selectionArgs,
            MediaStore.Files.FileColumns.DATE_MODIFIED + " desc");

    String fileName;
    String filePath;
    while (cursor.moveToNext()) {
        String type = cursor.getString(cursor.getColumnIndex(MediaStore.Files.FileColumns.MIME_TYPE));
        fileName = cursor.getString(cursor.getColumnIndex(MediaStore.Files.FileColumns.TITLE));
        filePath = cursor.getString(cursor.getColumnIndex(MediaStore.Files.FileColumns.DATA));
        Log.e("ryze_text", fileName + " -- " + type + "--" + filePath);//Here is the result

    }

    cursor.close();
    cursor = null;
}

Answer 1

过了一天，我找到了另一种方法。先看看日志

我将两个参数更改为null以指示完整搜索

getContentResolver().query(MediaStore.Files.getContentUri("external"),
            projection,
//                selection,
//                selectionArgs,
            null,null,
            MediaStore.Files.FileColumns.DATE_MODIFIED + " desc");

Log.e("ryze_text", fileName + " -- " + type + "--" + filePath);

使用上面的代码，我得到了以下日志

20160423.xlsx -- null--/storage/emulated/0/tencent/MicroMsg/Download/20160423.xlsx

我不知道为什么mimeType为null，但我已经可以得到我想要的pptx，xlsx，docx。

寻找办公室文件

1 个答案: