Reasons

Sometimes, we maybe build some views repeatedly. Because we think that they just will be used under a condition. It's the curse of breaking the rule: DRY. In fact, If we are conscious of view's reusing, we will make more efforts to make it completely independent.

So for recording my growth, for writing less codes, for better tomorrow......

I should create this repository to summary some UI(cocoa Touch) extensions that are likely to be used in our work.

List

UIButton

• Set image alignment:

button.zon.setImage(image, imageAlignment: .top, spacing: 0, state: .normal)

Effect just like this:

UIImage

• Generate QR code:

QRImageView.image = UIImage.zon.qrImage(content: "我(I) you 🤣", size: CGSize(width: 200, height: 200))

The QR code image as follows:

• Rotate image with degree by clockwise.
• Compose image with color.
• Tint image with color.
• Read gif file.

UIImageView

• Save image of UIImageView to album by Photos:

imageView.zon.saveImage(completion: @escaping (Result<UIImage, Error>) -> Void)

UIView

• Edit action:

myLabel.zon.asMenuTrigger([MenuItem(title: "test", action: #selector(testAction))])

• Get view controller who contains itself by response chain.
• Shortcuts of frame.
• Hotspot. Expand or shrink user interaction area with AOP.

let button = UIButton()
// Expand(negative value) or shrink(positive value) extra hotspot area.
button.zon.extraArea = .init(top: 10, left:10, bottom: 10, right: 10)
// Specify minimum positive hotspot size. View will expand its bounds for Hit-Test equally to fit it.
button.zon.minimumSize = .init(width: 44, height: 44)

• Add gradient layer:

let view = UIView()
let layer = view.zon.gradientLayer // GradationSettable, view will add sublayer automatically.

protocol GradationSettable: AnyObject {
    var locations: [CGFloat] { get set }
    var colors: [UIColor] { get set }
    var startPoint: CGPoint { get set }
    var endPoint: CGPoint { get set }
}

• Add touchUpInside event action like UIButton with highlighted status:

view.zon.onTouchUpInside(canceller: OutOfBoundsCanceller()) {
    // do something.
}

UIViewController

• The time interval of browsing view:

scene.zon.enableDurationTrack()
scene.zon.duration

• Add/Remove child.

UINavigationController

• Get a visiable navigation controller can push and pop view controller.

UIPasteboard

• Get/Set sring/image from background queue.

UIStackView

• Remove all arranged views.
• Set layout padding and background color.

UITableView

• Reuse
• Scroll to bottom.

UICollectionView

• Reuse
• Scroll to bottom.

UIColor

• Init color with hex string like: prefix -> #/0x, suffix -> RGB/RGBA/RRGGBB/RRGGBBAA.

To be continue...