xcode 如何让Xcode自动符合协议
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How to make Xcode automatically conform to a protocol
提问by Sweeper
When I use a prototype table view, I always have to conform to the protocol TableViewDataSource. I always forget what methods I need to implement, so I have to look at the source of the protocol every time. This is really time consuming.
当我使用原型表视图时，我总是要遵守协议TableViewDataSource。总是忘记需要实现什么方法，所以每次都要看协议的来源。这真的很费时间。
I think Xcode must have a feature that automatically implements the needed methods for you, right? Just like IntelliJ IDEA, Eclipse, and Visual Studio.
我认为 Xcode 必须具有自动为您实现所需方法的功能，对吗？就像 IntelliJ IDEA、Eclipse 和 Visual Studio。
I want to know where can I find this feature. If there's isn't, is there a workaround for this? At least I don't have to open the source code of the protocol each time I conform to it.
我想知道在哪里可以找到这个功能。如果没有，是否有解决方法？至少我不用每次遵守协议的源代码都去打开。
If you don't understand what I mean, here's some code:
如果你不明白我的意思，这里有一些代码：
I have a protocol
我有一个协议
protocol Hello {
func doStuff ()
}
When I conform to it,
当我符合它时，
class MyClass: Hello {
}
I often don't remember the names of the methods that I need to implement. If Xcode has a feature that turns the above code, into this:
我经常不记得我需要实现的方法的名称。如果 Xcode 有一个功能可以把上面的代码变成这样：
class MyClass: Hello {
func doStuff () {
code
}
}
Now you understand what I mean? I just want to ask where to find such a feature.
现在你明白我的意思了吗？我只想问在哪里可以找到这样的功能。
采纳答案by Hamza Ansari
Well if i understood your problem then here is a workaround:
好吧，如果我理解您的问题，那么这里有一个解决方法：
try to define methods with protocol as prefix like here hellothen you'll not have to remember the methods just start typing protocol name and XCODE will prompt you with all available methods see here:
尝试使用协议作为前缀定义方法，就像这里hello那样，你不必记住这些方法，只需开始输入协议名称，XCODE 就会提示你所有可用的方法，请参见此处：
And if you want autocomplete protocol try Snippets
如果你想要自动完成协议试试 Snippets
回答by Amjad Tubasi
Xcode 9: you can add missing Protocol Requirements by add new shortcut to your Key Bindings Set
Xcode 9：您可以通过向键绑定集添加新的快捷方式来添加缺少的协议要求
- From the top Xcode menu (top left) choose Preferences.
- Choose Key Binding.
- Search about protocol. you will find Command called
Refactor -> Add Missing Protocol Requirements - Press on Key column then add your shortcut.
ex: cmd + shift + M
- 从顶部 Xcode 菜单（左上角）中选择 Preferences。
- 选择键绑定。
- 搜索协议。你会发现命令叫
Refactor -> Add Missing Protocol Requirements - 按 Key 列，然后添加您的快捷方式。
ex: cmd + shift + M
Nowyou can add missing Protocol Requirements by clicking on class name name (or his extension) then press your shortcut
现在您可以通过单击类名名称（或其扩展名）来添加缺少的协议要求，然后按您的快捷方式
回答by Krunal
Xcode 9, takes care of implementation of mandatory methods of Swift Datasource & Delegates.
Xcode 9，负责 Swift 数据源和委托的强制方法的实现。
Look at these snapshots, with example of UICollectionViewDataSource:
看看这些快照，例如UICollectionViewDataSource：
Indicating warning to implement protocol methods:
指示实现协议方法的警告：
By clicking on 'Fix' button, it has added all mandatory methods:
通过单击“修复”按钮，它添加了所有必需的方法：
回答by Maschina
Very similar to Amjad's post, Xcode 9/10 brings the functionality to add missing protocol requirements right from within the code editor.
与 Amjad 的帖子非常相似，Xcode 9/10 带来了直接从代码编辑器中添加缺少的协议要求的功能。
Just "right click" on the class name: "Refactor" --> "Add Missing Protocol Requirements"
只需在类名上“右键单击”：“重构”-->“添加缺少的协议要求”
回答by chedabob
Xcode won't do it for you.
Xcode 不会为你做这件事。
If you look at the documentation for the protocol, it's clearly marked which functions you have to implement:
如果您查看协议的文档，它会清楚地标明您必须实现哪些功能：
