# TransformAnimation

**Repository Path**: kmyhy/transform-animat

## Basic Information

- **Project Name**: TransformAnimation
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-09-15
- **Last Updated**: 2021-09-15

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# TransformAnimation - An simple navigation transition animation 



TransformAnimation implement a functional navigation transition animation which is used to replace the system default navigation controller push animation :

<img src="transform_animation.gif" width=300/>



When we click the Button in the first view controller, the transition animation will begin.

The animation start with a big image presented at view's center, then quickly translate and scale down to a small image on right bottom corner. 

When the animation ended, the navigation controller will present second view controller.

## How to use it

First of all, you need to drag these file to your own project:

* UIView+Extension.swift
* TransformAnimator.swift

Then you need  two View Controllers to implement TransformAinmationViewController which only includes 2 properties:

```swift
protocol TransformAnimationViewController {
    var animator: TransformAnimator { get }
    var animatingView: UIView { get }
}
```

For example, We will premise there are two view controllers: FirstViewController and SecondViewController. They have to implement these two properties:

```swift
var animator = TransformAnimator()
var animatingView: UIView {
	return imageView
}
```

Note that the animator is a stored property, you can't implement it in extension. The animatingView is a UIView that you will commit animation with it, typtically, it's a UIImageView(usally it's also an IBOutlet ) like the bottle image at the begining of this article.

Then add this line in their viewDidAppear methods:

```swift
navigationController?.delegate = animator
```

In the same time, you also need to add this line in their viewDidDisappear methods:

```swift
navigationController?.delegate = nill
```

Build & run.  Congrats!  You  implemented a awesome navigation transitioning animation!