February 2017
Beginner to intermediate
472 pages
9h 53m
Chinese
Content preview from Swift学习手册
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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.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.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.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.
处理
iCloud
中的文件
｜
209
接下来可以编写
iOS
文档类了。
1.
打开
iOS
应用的
Document.swift
文件。
2.
把下述代码添加到
Document
类中：
var text = NSAttributedString(string: "") {
didSet {
self.updateChangeCount(UIDocumentChangeKind.Done)
}
}
var documentFileWrapper = NSFileWrapper(directoryWithFileWrappers: [:])
override func contentsForType(typeName: String) throws -> AnyObject {
let textRTFData = try self.text.dataFromRange(
NSRange(0..<self.text.length),
documentAttributes:
[NSDocumentTypeDocumentAttribute: NSRTFTextDocumentType])
if let oldTextFileWrapper = self.documentFileWrapper
.fileWrappers?[NoteDocumentFileNames.TextFile.rawValue] {
self.documentFileWrapper.removeFileWrapper(oldTextFileWrapper) ...
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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.