SweetUIKit 1.13.1

You want to add pod 'SweetUIKit', '~> 1.13' similar to the following to your Podfile:

target 'MyApp' do
  pod 'SweetUIKit', '~> 1.13'
end

Then run a pod install inside your terminal, or from CocoaPods.app.

Alternatively to give it a test run, run the command:

pod try SweetUIKit

SweetUIKit 1.13.1

By
Use Sweet
use_sweet

SweetUIKit

SearchableCollectionView

We provide a SearchableCollectionController, a subclass of SweetCollectionController that provides the same search functionality that a UITableView combined with a UISearchController can provide. That includes attaching the search bar to the bottom of the navigation bar, handling scrolling animations and automatically handling its positioning so that it’s never half-shown. Exactly the same as the native table view behaviour.

Implementing

Just subclass it, override the following methods and it should be good to go.

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell

Of course it won’t do much until you also implement the UISearchBar delegate method.

Here’s a very naive implementation:

extension SearchableCollectionViewController: UISearchBarDelegate {
    func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
        self.searchTerm = searchText
        self.collectionView.reloadData()
    }
}

Dequeuing Cells

UITableView

// Before
let cell = tableView.dequeueReusableCell(withIdentifier: "TitleCell", for: indexPath) as! TitleCell

// After
let cell = tableView.dequeue(TitleCell.self, for: indexPath)

UICollectionView

// Before
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CollectionViewCell", for: indexPath) as! CollectionViewCell

// After
let cell = collectionView.dequeue(CollectionViewCell.self, for: indexPath)

Registering Cells

Simple protocol extensions to simplify registering a cell in UITableViewController and UICollectionViewController.

Before:

self.tableView.registerClass(ItemCell.self, forCellReuseIdentifier: "ItemCell")

After:

self.tableView.register(ItemCell.self)

Also, accessing the cell identifier is as easy as using ItemCell.reuseIdentifier.

UIAlertController

Dismissable alert

let alertController = UIAlertController.dismissableAlert(title: "Not allowed access", message: "Please contact your admin to get access.")
self.presentViewController(alertController, animated: true, completion: nil)

Destructive confirmation alert

let alertController = UIAlertController.destructiveConfirmationAlert(message: "Are you sure you want to log out?", destructiveActionTitle: "Log out") {
    self.controllerDelegate?.settingsControllerDidPressLogoutButton(self)
}
self.presentViewController(alertController, animated: true, completion: nil)

Error alert

let alertController = UIAlertController.errorAlert(error)
self.presentViewController(alertController, animated: true, completion: nil)

Progress alert

let progressAlert = UIAlertController.progressAlert("Creating album...")
self.presentViewController(progressAlert, animated: true, completion: nil)
self.fetcher.createAlbum(title: self.titleTextField.text, photos: self.selectedPhotos) { error in
    progressAlert.dismissViewControllerAnimated(true) {
        if let error = error {
            let alertController = UIAlertController.errorAlert(error)
            self.presentViewController(alertController, animated: true, completion: nil)
        } else {
            // Success
        }
    }
}

UILabel

Calculate width

let width = self.usernameLabel.width()
// Do something with new width

UIView

Nib support

Helper class method to create a view from a nib file directly. Supports overriding the bundle and the name of the nib. Takes 4 possible arguments. Nib name, bundle, file owner and options. Same as when using UINib(nibName:bundle).instantiate(withOwner:options:).

let myView = MyView.instanceFromNib(nibName: "ViewXibName", bundle:  .main)

Autolayout

Fill superview

Set a view’s top, left, right and bottom anchors to be the same as the superviews. Accepts an optional UIEdgeInsets argument. Values can be all positive for margins, as it handles the negative values for bottom and right constants already.

    view.fillSuperview()
    
    anotherView.fillSuperview(UIEdgeInsets(top: 10, left: 10, bottom: 80, right: 10))

Set hight and width anchors directly

    view.set(height: 30.0)
    view.set(width: 50.0)

Attach to top

Great for toolbars, attaches to view to the top of the superview. Doesn’t set a height. If you pass a view controller, it will attach to viewController.topLayoutGuide.bottomAnchor instead of superview.topAnchor.

    toolbar.attachToTop(viewController: self)

Shake

self.fetcher.authenticate(username, password: password) { clientID, clientSecret, accessToken, refreshToken, expiresIn, error in
    if let error = error {
        // Update UI to display error
        self.tableView.shake()
    } else {
      // success
    }
}

UIImage

Resizing

You can resize an image by providing a new height, width or scale rate.

let image = UIImage()
let scaledImage = image.resized(by: 0.5) // CGInterpolationQuality defaults to .medium
let widthImage = image.resized(toWidth: 300) // scales up or down as needed
let heightImage = image.resized(toHeight: 300)

Centered frame

let image = UIImage(named: "art.png")!
let frame = image.centeredFrame()
// Do something with new frame

Image with colour

let image = UIImage(color: .red)
button.setBackgroundImage(image, for: .normal)

or, if you need the image to have specific dimensions

let image = UIImage(color: .red, size: someSize)

Colours from RGBA values

Create images using rgba(255,255,255,1.0) values.

    UIColor(r: 200, b: 120, c: 255)
    UIColor(r: 200, b: 120, c: 25, 0.5)

UIViewController

Application window

let window = self.applicationWindow()

Keyboard Aware Accessory View

This keyboard aware accessory view is part of your view(controller) and moves with the keyboard.

KeyboardAwareAccessoryViewDelegate

var keyboardAwareInputView: KeyboardAwareInputAccessoryView { get }

inputView(_:shouldUpdatePosition:)

Installation

SweetUIKit is available through CocoaPods. To install
it, simply add the following line to your Podfile:

pod 'SweetUIKit'

SweetUIKit is also available through Carthage. To install
it, simply add the following line to your Cartfile:

github "UseSweet/SweetUIKit" ~> 1.0

License

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

Author

Bakken & Bæck, @use_sweet