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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使用外设
｜
315
//
注意，我们并没有调用另外的方法，而
//
只是正常的方法。但是，一旦
Taptic
引擎
//
已经处于就绪状态的话，通知的发送将变
//
得更快
heavyImpact.impactOccurred()
出于省电的目的，
Taptic
引擎的就绪状态只能保持几秒钟。
注意，不是所有的设备都拥有
Taptic
引擎，在没有
Taptic
引擎的设备上，反
馈不会直接播放。也就是说你的游戏不要依赖于触觉反馈，它仅仅是在原有
视觉和听觉效果的基础上加以强调。
在选择反馈生成器类型时，应根据它本来的设计目的来进行，不要依赖它的实际效
果来选择，因为在不同的
iOS
版本中，它们的行为是不同的。
10.8
用
ReplayKit
记录屏幕
问题
你想记录屏幕内容，以便用户可以将他们的游戏分享给其他人，或者保存进相册。
解决方案
你可以用
ReplayKit
来记录屏幕。
要使用
ReplayKit
，首先需要导入框架：
import ReplayKit
用
ReplayKit
记录屏幕，需要用到
RPScreenRecorder
类。你无需创建它的实例，
而是使用它的单例：
let recorder = RPScreenRecorder.shared()
316
｜
第
10
章
当你想记录屏幕时，请调用
startRecording
方法。这会开始记录过程，当记录开 ...
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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.