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, [email protected]

License

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