JavaFX分页，添加<<和>>>选项 [英] JavaFX Pagination, adding << and >>> options

问题描述

我正在做一个数据显示应用程序，我需要为我的分页添加一个选项，可用于返回第一页（索引）或转到最后一页。

I am doing a data displaying app and I need to add a option to my pagination which can be used to go back to the first page (index) or go to the last one.

我已经尝试过向我的用户界面添加按钮，但由于无法获取最后一个索引而无效。

I already tried adding buttons to my UI but it did not work because I could not obtain the last index.

@FXML
void goToLastIndex(ActionEvent event) {
    int lastIndex = pagination.getPageCount();
    pagination.setCurrentPageIndex(lastIndex);
}

推荐答案

根据 Javadocs 默认值 pageCount 是 Pagination.INDETERMINATE ，这是（或多或少任意）等于 Integer.MAX_VALUE 。如果您的分页具有固定数量的页面（如果没有，那么拥有最后一页真的没有意义），那么您应该通过调用构造函数获取页数值，或者调用 setPageCount（...）并指定页数。

According to the Javadocs the default value of pageCount is Pagination.INDETERMINATE, which is (more or less arbitrarily) equal to Integer.MAX_VALUE. If your pagination has a fixed number of pages (if not, it doesn't really make sense to have a "last page"), then you should initialize it by calling the constructor taking a page count value, or call setPageCount(...) and specify the number of pages.

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