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https://github.com/me-abhinav/NumberMorphView

A label view for displaying numbers which can transition or animate using a technique called number tweening or number morphing.
https://github.com/me-abhinav/NumberMorphView

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A label view for displaying numbers which can transition or animate using a technique called number tweening or number morphing.

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README 

        
# NumberMorphView



[![Build Status](https://travis-ci.org/me-abhinav/NumberMorphView.svg?branch=master)](https://travis-ci.org/me-abhinav/NumberMorphView)

[![Version](https://img.shields.io/cocoapods/v/NumberMorphView.svg?style=flat)](http://cocoapods.org/pods/NumberMorphView)

[![License](https://img.shields.io/cocoapods/l/NumberMorphView.svg?style=flat)](http://cocoapods.org/pods/NumberMorphView)

[![Platform](https://img.shields.io/cocoapods/p/NumberMorphView.svg?style=flat)](http://cocoapods.org/pods/NumberMorphView)



`NumberMorphView` a view like label for displaying numbers which animate with transition using a technique called number tweening or number morphing.



alt text



## Usage



To run the example project, clone the repo, and run `pod install` from the Example directory first.



### Interface builder



1. Drag a UIView into your view controller.

2. Change the class to `NumberMorphView` in the identity inspector.

3. Change intrinsic size from default to placeholder in the size inspector.

4. Create an IBOutlet in your view controller.



Set the digit of number view as shown below:

```Swift

numberView.currentDigit = 5;

```

Animate to nextDigit as shown below.

```Swift

numberView.nextDigit = 8;

```



### From code



`NumberMorphView` can be used with or without auto layout. Usage of intrinsic content size is recommended.

Preferred aspect ratio of the view is 13 : 24.



```Swift

let numberView = NumberMorphView();

numberView.fontSize = 64;

numberView.currentDigit = 5;

let preferedSize = numberView.intrinsicContentSize();

numberView.frame = CGRect(x: 10, y: 10, width: preferedSize.width, height: preferedSize.height);

self.view.addSubview(numberView);



dispatch_after(5, dispatch_get_main_queue()) {

    numberView.nextDigit = 7;

}

```



Note: Intrinsic content size is changed after setting `fontSize`.



### Customizing animations



- To set the animation duration:

```Swift

numberView.animationDuration = 4;

```

- To change the type of animation, set the interpolator.

```Swift

numberView.interpolator = NumberMorphView.SpringInterpolator();

```

Already available interpolators are `LinearInterpolator`, `OvershootInterpolator`, `SpringInterpolator`, `BounceInterpolator`, `AnticipateOvershootInterpolator`, and `CubicHermiteInterpolator`. Also you can add new interpolators. The interpolator class needs to conform to `InterpolatorProtocol` as shown below:

```Swift

class MyLinearInterpolator: InterpolatorProtocol {

    func getInterpolation(x: CGFloat) -> CGFloat {

        return x;

    }

}

```



## Requirements



- iOS 8.0+

- Swift 2.2



## Installation



NumberMorphView is available through [CocoaPods](http://cocoapods.org). To install

it, simply add the following line to your Podfile:



```ruby

use_frameworks!

pod 'NumberMorphView', '0.2.0'

```



## Author



Abhinav Chauhan



## License



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