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PRs Welcome

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.