如何自动在表格视图中滚动?(迅速) [英] How do i automatically scroll in a table view? (Swift)

问题描述

我在表格视图中添加了一个搜索栏，当用户搜索时，我希望表格视图滚动到您键入的文本.

I added a search bar to my table view, and as the user searches, I want the table view to scroll to the text that your typed.

如何使滚动视图自动滚动?

How do I make the scroll view scroll automatically?

这是我尝试过的方法，但是我收到一条错误消息，说Integer不能转换为索引Path.我该怎么办?

This is what I tried, but I get an error saying that an Integer is not convertible to an index Path. What should I do?

self.tableview.scrollToRowAtIndexPath(1, atScrollPosition: UITableViewScrollPosition.Middle, animated: true)

或

self.tableview.scrollToNearestSelectedRowAtScrollPosition(scrollPosition: UITableViewScrollPosition.Middle, animated: true)

推荐答案

您必须通过以下方式调用方法 scrollToRowAtIndexPath :

You have to call the method scrollToRowAtIndexPath in the following way :

var indexPath = NSIndexPath(forRow: numberOfRowYouWant, inSection: 0)
self.tableview.scrollToRowAtIndexPath(indexPath, 
               atScrollPosition: UITableViewScrollPosition.Middle, animated: true)

以上示例假定您只有一个部分.希望对您有帮助.

The above example assume you have only one section. I hope this help you.

对于Swift 3:

let indexPath = NSIndexPath(item: numberOfRowYouWant, section: 2)
tableView.scrollToRow(at: indexPath as IndexPath, at: UITableViewScrollPosition.middle, animated: true)

对于Swift 4:

let indexPath = NSIndexPath(item: numberOfRowYouWant, section: 2)
tableView.scrollToRow(at: indexPath as IndexPath, at: UITableView.ScrollPosition.middle, animated: true)

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