为Android10中应用程序创建的纵隔重命名文件。在Android API 30上工作，但在API 29中显示错误

Question

java.lang.IllegalArgumentException：不允许移动不属于定义良好的集合的内容：//media/external/file/116

更新-注意：

---开始---

private static Uri extUri = MediaStore.Downloads.getContentUri(MediaStore.VOLUME_EXTERNAL);

Uri extUri = MediaStore.Files.getContentUri(MediaStore.VOLUME_EXTERNAL);
String relativeLocation = Environment.DIRECTORY_DOWNLOADS + File.separator + "AppFolder";

函数重命名（...）

boolean renameFile(Context context, String newName, String displayName) {

    try {
        Long id = getIdFromDisplayName(displayName);
        ContentResolver contentResolver = context.getContentResolver();
        Uri mUri = ContentUris.withAppendedId(extUri, id);
        ContentValues contentValues = new ContentValues();

        contentValues.put(MediaStore.Files.FileColumns.IS_PENDING, 1);
        contentResolver.update(mUri, contentValues, null, null);

        contentValues.clear();
        contentValues.put(MediaStore.Files.FileColumns.DISPLAY_NAME, newName);
        // contentValues.put(MediaStore.Files.FileColumns.MIME_TYPE, "files/pdf");
        // contentValues.put(MediaStore.Files.FileColumns.RELATIVE_PATH, relativeLocation);
        // contentValues.put(MediaStore.Files.FileColumns.TITLE, "SomeName");
        // contentValues.put(MediaStore.Files.FileColumns.DATE_ADDED, System.currentTimeMillis() / 1000);
        // contentValues.put(MediaStore.Files.FileColumns.DATE_TAKEN, System.currentTimeMillis());
        contentValues.put(MediaStore.Files.FileColumns.IS_PENDING, 0);
        contentResolver.update(mUri, contentValues, null, null);
        return true;
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return false;
}

函数getIdFromDisplayName（...）

@RequiresApi(api = Build.VERSION_CODES.Q)
Long getIdFromDisplayName(String displayName) {
    String[] projection;
    projection = new String[]{MediaStore.Files.FileColumns._ID};

    // TODO This will break if we have no matching item in the MediaStore.
    Cursor cursor = getContentResolver().query(extUri, projection,
            MediaStore.Files.FileColumns.DISPLAY_NAME + " LIKE ?", new String[]{displayName}, null);
    assert cursor != null;
    cursor.moveToFirst();

    if (cursor.getCount() > 0) {
        int columnIndex = cursor.getColumnIndex(projection[0]);
        long fileId = cursor.getLong(columnIndex);

        cursor.close();
        return fileId;
    }
    return null;
}

Answer 1

java.lang.IllegalArgumentException：不允许移动不属于定义良好的集合的内容：//media/external/file/116

所以它对于AndroidQ是不允许的，如果你使用收集；

Uri extUri = MediaStore.Files.getContentUri(MediaStore.VOLUME_EXTERNAL);

但对于“定义良好的集合”（如：

Uri extUri = MediaStore.Images.Media.getContentUri(MediaStore.VOLUME_EXTERNAL);
// Use  "Pictures/MyFolder" for RELATIVE_PATH

您可以在java文件https://android.googlesource.com/platform/packages/providers/mediaprovider/+/refs/heads/master/src/com/android/providers/mediaprovider.java中看到消息

报价：

     // We only support movement under well-defined collections
        switch (match) {
            case AUDIO_MEDIA_ID:
            case VIDEO_MEDIA_ID:
            case IMAGES_MEDIA_ID:
            case DOWNLOADS_ID:
                break;
            default:
                throw new IllegalArgumentException("Movement of " + uri
                        + " which isn't part of well-defined collection not allowed");
        }

如果重命名失败，请使用SAF（如前所述）。如何在只知道其媒体内容Uri的Android中重命名文件