DaisyChain is a micro framework which makes UIView animations chaining dead simple.

Ali Karagoz

Last update: Nov 3, 2022

Related tags

Animation DaisyChain

Overview

DaisyChain

DaisyChain is a micro framework which makes UIView animations chaining dead simple. It uses the exact same interface you are familiars with.

Chaining made simple

We all have seen or written code which looks like this:

UIView.animateWithDuration(0.5, animations: {
  view.center = CGPointMake(0.0, 0.0)
  }) { _ in
    UIView.animateWithDuration(0.5, animations: {
      view.center = CGPointMake(100.0, 0.0)
      }) { _ in
        UIView.animateWithDuration(0.5, animations: {
          view.center = CGPointMake(100.0, 100.0)
          }) { _ in
            UIView.animateWithDuration(0.5, animations: {
              view.center = CGPointMake(0.0, 100.0)
              }) { _ in
                UIView.animateWithDuration(0.5, animations: {
                  view.center = CGPointMake(0.0, 0.0)
                })
            }
        }
    }
}

This can go pretty far, it is also know as the callback hell. It's not very flexible and hard to read.

With DaisyChain the above code looks like this:

let chain = DaisyChain()

chain.animateWithDuration(0.5, animations: {
  view.center = CGPointMake(0.0, 0.0)
})

chain.animateWithDuration(0.5, animations: {
  view.center = CGPointMake(100.0, 0.0)
})

chain.animateWithDuration(0.5, animations: {
  view.center = CGPointMake(100.0, 100.0)
})

chain.animateWithDuration(0.5, animations: {
  view.center = CGPointMake(0.0, 100.0)
})

chain.animateWithDuration(0.5, animations: {
  view.center = CGPointMake(0.0, 0.0)
})

As you can the the code looks more flat, it allows you to easy modify orders or add new steps.

Breakable chains

DaisyChain also adds a simple way to break animation sequences, simply set the broken property to yes to break a chain:

chain.broken = true

To continue chaining animation, you'll need to put it back to false or create a new chain.

Setting up with CocoaPods

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'
use_frameworks!

pod 'DaisyChain', '~> 1.0.0'

Setting up with Carthage

1.0.0 ">

github "alikaragoz/DaisyChain" ~> 1.0.0

License

DaisyChain is available under the MIT license.

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Comments

Swift4 api addition

This is a branch off of the swift 4 updated pull request. It adds a return value to all of the animate methods. The return value is the DaisyChain instance. This allows for a simpler syntax if the user prefers.

i.e.

let chain = DaisyChain()

chain.animate(withDuration: 0.5, animations: {
    view.center = CGPoint(x: 0.0, y: 0.0)
}).animate(withDuration: 0.5, animations: {
    view.center = CGPoint(x: 100.0, y: 0.0)
}).animate(withDuration: 0.5, animations: {
    view.center = CGPoint(x: 100.0, y: 100.0)
}).animate(withDuration: 0.5, animations: {
    view.center = CGPoint(x: 0.0, y: 100.0)
}).animate(withDuration: 0.5, animations: {
    view.center = CGPoint(x: 0.0, y: 0.0)
})

opened by Nordeast 0