如何配置uiscrollview当数据到达最低点时加载数据 [英] How to configure uiscrollview to load data, when it reaches the bottom point

问题描述

我正在制作一个应用程序，就像 Instagram ，路径，等等。我需要知道触发点，用户在何处滚动到最低点以及何时滚动到最低点弹跳，我需要打一些电话。如何获得该触发点？

I am making an application, just like Instagram, Path, etc. I need to know, trigger point, where, if the user scrolls to the bottom point and when it bounces, I need to make some calls. How do I get that trigger point?

推荐答案

看看UIScrollviewDelegate方法： http://developer.apple.com/library/ios/#documentation/uikit/ reference / uiscrollviewdelegate_protocol / Reference / UIScrollViewDelegate.html

Take a look at the UIScrollviewDelegate methods: http://developer.apple.com/library/ios/#documentation/uikit/reference/uiscrollviewdelegate_protocol/Reference/UIScrollViewDelegate.html

您可能想看看 – scrollViewDidEndDragging：willDecelerate：和 – scrollViewDidEndDecelerating：，然后在这些方法中使用 scrollView.bounds 来检查滚动视图的当前可见矩形。找出用户是否已滚动到底部。

You probably want to look at – scrollViewDidEndDragging:willDecelerate: and – scrollViewDidEndDecelerating: and then inside those methods check the current visible rect of the scrollview using scrollView.bounds to find out if the user has scrolled to the bottom.

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