XcodeCodeSnippets

A set of snippets for Xcode.

Requirements

Xcode 7.3.1 or later.

Installation

To install or update the snippets you need:

Quit Xcode
On the command line:

cd ~/Downloads
git clone https://github.com/ismetanin/XcodeCodeSnippets
mkdir -p $HOME/Library/Developer/Xcode/UserData/CodeSnippets
cp XcodeCodeSnippets/CodeSnippets/* $HOME/Library/Developer/Xcode/UserData/CodeSnippets
rm -rf XcodeCodeSnippets

Or if you have a cloned repository:

On the command line, cd into the directory with snippets and write sh ./install.sh

List of snippets

MARKs

There are MARKs for Swift and Objective-C. For Swift there is prefix before each // MARK: - and for Objective-C prefix is #pragma mark -.

Shortcuts are equal to snippet body for example for // MARK: - Properties shortcut is Properties.

Available MARKs

Snippet
Just empty mark (`// MARK: -` or `#pragma mark -` )
`Nested types`
`Constants`
`Subviews`
`NSLayoutConstraints`
`Properties`
`Public properties`
`Readonly properties`
`IBOutlets`
`Initialization and deinitialization`
`UITableViewCell`
`UIViewController`
`Actions`
`IBActions`
`Public methods`
`Internal methods`
`Private methods`

Code

A template for creating TableViewAdapter, shortcut: Table View Adapter

Code

 import UIKit

 protocol <#Your#>TableViewAdapterOutput {
 }

 final class <#Your#>TableViewAdapter: NSObject {
     // MARK: - Properties

     private let output: <#Your#>TableViewAdapterOutput

     private var items: [String]
     private var tableView: UITableView

     // MARK: - Initialization and deinitialization

     init(tableView: UITableView, output: <#Your#>TableViewAdapterOutput) {
         self.output = output
         self.tableView = tableView
         self.items = []
         super.init()
         setupTable()
     }

     // MARK: - Internal methods

     func configure(with items: [String]) {
         self.items = items
         tableView.reloadData()
     }

     // MARK: - Private methods

     private func setupTable() {
         tableView.delegate = self
         tableView.dataSource = self
         tableView.register(
             UINib(nibName: String(describing: <#Your#>TableViewCell.self), bundle: nil),
             forCellReuseIdentifier: String(describing: <#Your#>TableViewCell.self)
         )
     }
 }

 // MARK: - UITableViewDataSource

 extension <#Your#>TableViewAdapter: UITableViewDataSource {
     func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
         return items.count
     }

     func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
         let cell = tableView.dequeueReusableCell(
             withIdentifier: String(describing: <#Your#>TableViewCell.self),
             for: indexPath
         ) as? TableViewCell
         cell?.backgroundColor = .red
         return cell ?? <#Your#>UITableViewCell()
     }
 }

 // MARK: - UITableViewDelegate

 extension <#Your#>TableViewAdapter: UITableViewDelegate {
     func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
         tableView.deselectRow(at: indexPath, animated: true)
     }
 }

A code block for creating user property in UserDefaults extension, shortcut: Defaults Key

Code

 var <#defaultsKey#>: <#Type#> {
     get { return <#typeof#>(forKey: #function) }
     set { set(newValue, forKey: #function) }
 }

A code block for layouting child view anchors equal to the parent view anchors, shortcut: Constraints - layout child as parent

Code

 <#childView#>.translatesAutoresizingMaskIntoConstraints = false

 NSLayoutConstraint.activate([
     <#childView#>.topAnchor.constraint(equalTo: <#parentView#>.safeAreaLayoutGuide.topAnchor, constant: 0),
     <#childView#>.bottomAnchor.constraint(equalTo: <#parentView#>.safeAreaLayoutGuide.bottomAnchor, constant: 0),
     <#childView#>.leadingAnchor.constraint(equalTo: <#parentView#>.safeAreaLayoutGuide.leadingAnchor, constant: 0),
     <#childView#>.trailingAnchor.constraint(equalTo: <#parentView#>.safeAreaLayoutGuide.trailingAnchor, constant: 0)
     ])

A code block for user property creating in NSNotification.Name extension, shortcut: NSNotification Name

Code

static let <#notificationName#> = NSNotification.Name("<#projectName#>.notifications.<#notificationName#>")

A code block for creating template comments for unit test, shortcut: testtemplate
Code
```
// given

// when

// then
```
A code block for creating template constants enum, shortcut: Constants enum
Code
```
 // MARK: - Nested types

 private enum Constants {

 }
```

A code block for creating keyboard notifications detector, shortcut: Keyboard detector

Code

func addKeyboardObservers() {
     NotificationCenter.default.addObserver(self,
                                            selector: #selector(keyboardWillShow),
                                            name: UIResponder.keyboardWillShowNotification,
                                            object: nil)
     NotificationCenter.default.addObserver(self,
                                            selector: #selector(keyboardWillHide),
                                            name: UIResponder.keyboardWillHideNotification,
                                            object: nil)
 }

 @objc
 func keyboardWillShow(notification: NSNotification) {
     guard
         let frame = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue
     else {
         return
     }
 }

 @objc
 func keyboardWillHide() {

 }

Author

Ivan Smetanin, smetanin23@yandex.ru

License

XcodeCodeSnippets is available under the MIT license. See the LICENSE file for more info.