Question

我目前正在使用Cursor在我的Android应用中列出SD卡上的所有图像。但是，我希望光标在创建图像之后对图像进行排序，目前情况并非如此。

有谁知道我应该做什么？

谢谢！

public ArrayList<String> getFilePaths() {
    Uri uri;
    ArrayList<String> listOfAllImages = new ArrayList<String>();
    Cursor cursor;
    int column_index_data, column_index_folder_name;
    String PathOfImage = null;
    uri = android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI;

    String[] projection = { MediaStore.MediaColumns.DATA,
            MediaStore.Images.Media.BUCKET_DISPLAY_NAME };

    cursor = Touch.getTouchContext().getContentResolver().query(uri, projection, null,
            null, null);

    column_index_data = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA);
    column_index_folder_name = cursor
            .getColumnIndexOrThrow(MediaStore.Images.Media.BUCKET_DISPLAY_NAME);


    ArrayList<String> filePaths = new ArrayList<String>();

    while (cursor.moveToNext()) {
        PathOfImage = cursor.getString(column_index_data);

        //listOfAllImages.add(PathOfImage);


        filePaths.add(PathOfImage);

    }

Answer 1

在查询中添加了选择：

org.springframework.orm.ObjectOptimisticLockingFailureException: Object of class [nl.coin.comp.domain.ServiceProvider] with identifier [105]: optimistic locking failed; nested exception is org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect) : [nl.coin.comp.domain.ServiceProvider#105]

更改了光标添加文件的方式：

cursor = Touch.getTouchContext().getContentResolver().query(uri, projection, null, null, MediaStore.Images.Media.DATE_ADDED);

如何更改游标中的排序

1 个答案: