随机自定义视图选择器 [英] Random custom view selector

问题描述

我创建了一个包含滚动视图的视图控制器，在滚动视图中我水平添加了5个不同的自定义UIView，我希望自定义UIView应该随机添加，具体取决于自定义UIViews宽度，因此应该设置scrollView的contentSize。

I have created a view controller which includes a scrollview and on scrollview i am adding 5 different custom UIView horizontally and i want that custom UIView should be added randomly depending on custom UIViews width and accordingly contentSize of scrollView should be set.

请帮我解决这个问题。

推荐答案

最后我来了解决方案

只需将五个视图放在一个可变数组中，然后将x偏移初始化为0.然后获取一个随机数并抓取数组中的视图（随机模数）数组计数，留在数组内）。将此视图添加到滚动视图，并将x偏移量增加选定视图的宽度。例如，当数组计数为零时停止。然后你的x告诉你你的scrollview的宽度，只需设置它的contentSize：

Just put your five view in a mutable array, and initialize your x offset to 0. Then get a random number and grab the view in the array (random modulo array count, to stay inside the array). Add this view to your scrollview and increase your x offset by the width of the choosed view. Stop when array count is zero for example. Then your x tells you the width of your scrollview, simply set its contentSize :

theScrollView.contentSize = CGSizeMake( x, theScrollView.frame.size.height);

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