January 2020
Intermediate to advanced
356 pages
6h 4m
Chinese
Content preview from Swift游戏开发经典实例
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58
｜
第
2
章
图
2
-
12
：为文本框创建一个 Outlet
再次显示了一个对话框让你输入一个
Action
名称，如图
2-13
所示。输入
buttonPressed
，然后点击
Connect
按钮。这将在
MainMenuViewController
类
中添加一个新的方法。
图
2
-
13
：创建一个 Action
14.
在新方法
buttonPressed
中加入代码。
我们使用的代码如下：
let alert = UIAlertController(title: "Button tapped",
message: "The button was tapped",
preferredStyle: UIAlertController.Style.alert)
alert.addAction(UIAlertAction(title: "OK",
style: UIAlertAction.Style.default,
handler: nil))
self.present(alert,
animated: true, completion: nil)
视图和菜单
｜
59
讨论
在大多数简单的应用中，不同的屏幕画面用于执行不同任务。例如，对于一个“主
菜单”屏幕，它的任务就是显示游戏的 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.