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https://github.com/PierrePerrin/ShadowView

An iOS Library that makes shadows management easy on UIView.
https://github.com/PierrePerrin/ShadowView

blur blurred-images blurview cocoapods framework free ios library shadow shadowview swift-image uikit uiview

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An iOS Library that makes shadows management easy on UIView.

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README 

        



> ShadowView is an iOS Shadow library that makes view's shadow implementation easy and sweet 🎉 🎊.



[![Swift Version][swift-image]][swift-url] [![Build Status][travis-image]][travis-url] [![License][license-image]][license-url] [![CocoaPods Compatible](https://img.shields.io/cocoapods/v/EZSwiftExtensions.svg)](https://img.shields.io/cocoapods/v/LFAlertController.svg) [![Platform](https://img.shields.io/cocoapods/p/LFAlertController.svg?style=flat)](http://cocoapods.org/pods/ShadowView)



---



Add simple shadows to add a gaussian blurred projection (as a shadow) to any **UIView**.



![][example-image]



## Table of contents



-   [Features](#features)

-   [Requirements](#requirements)

-   [Installation](#installation)

    -   [CocoaPods](#cocoaPods)

    -   [Manually](#manually)

-   [How it works](#how-it-works)

    -   [Normal Shadows](#normal-shadows)

    -   [Projected Gaussian Shadows](#projected-gaussian-shadows)

-   [Usage example](#usage-example)

    -   [With Storyboard](#with-storyboard)

    -   [Programmatically](#programmatically)

-   [Parameters](#parameters)

-   [Notes](#notes)

-   [Contribute](#contribute)

-   [Meta](#meta)

    



## Features



-   [x] Add shadow easily from the **storyboard** and **programmatically**.

-   [x] Add a gaussian blurred projection of your view (like iOS 10 music app).

-   [x] Customize the border width and border color of any view from storyboard .



## Requirements



-   iOS 9.0+

-   Xcode 8



## Installation



#### CocoaPods



You can use [CocoaPods](http://cocoapods.org/) to install `ShadowView` by adding it to your `Podfile`:



```ruby

source 'https://github.com/CocoaPods/Specs.git'

platform :ios, '9.0'

use_frameworks!



target '' do

pod 'ShadowView'

end

```



#### Carthage



1. Install Carthage via Homebrew



```bash

$ brew update

$ brew install carthage

```



2. Add `github "PierrePerrin/ShadowView"` to your Cartfile.



3. Run `carthage update`.



4. Drag `ShadowView.framework` from the `Carthage/Build/iOS/` directory to the `Linked Frameworks and Libraries` section of your Xcode project’s `General` settings.



5. Add `$(SRCROOT)/Carthage/Build/iOS/ShadowView.framework` to `Input Files` of Run Script Phase for Carthage.



#### Manually



1. Download and drop all files in _ShadowView_ directory in your project.

2. Nice Job the best shadow library is now installed! 🎉 🎊 🎈



#### Import



To get the full benefits import `ShadowView` wherever you import UIKit



```swift

import UIKit

import ShadowView

```



## How it works



#### Normal Shadows



This shadow framework uses default CoreGraphics shadows by adding it the the layer of the view.



```swift

layer.shadowColor : CGColor

layer.shadowRadius : CGFloat

layer.shadowOffset : CGSize

layer.shadowOpacity : Float

layer.shadowPath : CGPath?

```



#### Projected Gaussian Shadows



Here the implemation is different. A shadow container need to be added and all views that needs a blurred shadow need to be subviews of this container.

![][example2-image]

The container takes a screen of all it's subviews and then apply blur on it.



## Usage example



### With Storyboard



#### Normal Shadows



Any view has new paramerters in the storyboar that you can change in order to add a customize shadow to your view.



#### Projected Gaussian Shadows



Add an UIView to you ViewController, change it class to ShadowView and insert in it all view that needs a blurred shadow.

![][examplestr2-image]



### Programmatically



#### Normal Shadows



Set the shadows parameters to your view and it the shadow will appear! 🌟



```swift

view.shadowRadius = 5

view.shadowOffset = CGSize.zero

view.shadowColor = UIColor.black.cgColor

view.shadowOpacity = 0.3

```



#### Projected Gaussian Shadows



Create you container ShadowView and then add views that need Shadows inside of it.



```swift

    let exampleShadowContainerView = ShadowView()

    let imageView = UIImageView(image: #imageLiteral(resourceName: "sample.jpg"))



    override func loadView() {

        super.loadView()



        exampleShadowContainerView.frame = self.view.bounds

        exampleShadowContainerView.autoresizingMask = [.flexibleWidth,.flexibleHeight]

        exampleShadowContainerView.shadowOffset = CGSize(width: 0, height: 10)

        exampleShadowContainerView.shadowRadius = 20



        self.view.addSubview(exampleShadowContainerView)

        self.exampleShadowContainerView.addSubview(imageView)

        imageView.center = exampleShadowContainerView.center

    }



    override func viewDidLayoutSubviews() {

        super.viewDidLayoutSubviews()

        imageView.frame.size = CGSize(width: 200, height: 200)

        imageView.center = exampleShadowContainerView.center

        self.exampleShadowContainerView.updateShadow()

    }

```



_Please see the example for more prescisions._



## Parameters



```swift



//Shared Paramerters



@IBInspectable public var shadowRadius : CGFloat



@IBInspectable public var shadowOffset : CGSize



@IBInspectable public var shadowColor : UIColor?



@IBInspectable public var shadowOpacity : Float



//Normal Shadow



@IBInspectable var shadowPath : CGPath?



//ShadowView only



///It changes the size of the projected shadow view.

@IBInspectable var shadowScale : CGFloat



///Changes the tint color of the blurred image

@IBInspectable var shadowTintColor : UIColor



///Changes the saturation of the blurred image (default:1)

@IBInspectable var shadowSaturation : CGFloat



```



## Notes



_Don't_ use Views like Sliders or ActivityIndicators, the shadow don't update un real-time.

It's preferable to use statics Views like Labels, images...



## Contribute



We would love you for the contribution to **ShadowView**, check the `LICENSE` file for more info.

If you find an issue, [open a ticket](https://github.com/olddonkey/ShadowImageView/issues/new) on it.



## Meta



Pierre Perrin – [email protected]



Distributed under the MIT license. See `LICENSE` for more information.



[https://github.com/PierrePerrin/](https://github.com/dbader/)



[swift-image]: https://img.shields.io/badge/swift-3.0-orange.svg

[swift-url]: https://swift.org/

[license-image]: https://img.shields.io/badge/License-MIT-blue.svg

[license-url]: LICENSE

[travis-image]: https://img.shields.io/travis/dbader/node-datadog-metrics/master.svg?style=flat-square

[travis-url]: https://travis-ci.org/dbader/node-datadog-metrics

[codebeat-image]: https://codebeat.co/badges/c19b47ea-2f9d-45df-8458-b2d952fe9dad

[codebeat-url]: https://codebeat.co/projects/github-com-vsouza-awesomeios-com

[example-image]: https://github.com/PierrePerrin/ShadowView/raw/master/Ressources/Example.png

[example2-image]: https://github.com/PierrePerrin/ShadowView/raw/master/Ressources/Example2.png

[example2-image]: https://github.com/PierrePerrin/ShadowView/raw/master/Ressources/Example2.png

[examplestr2-image]: https://github.com/PierrePerrin/ShadowView/raw/master/Ressources/exampleSTR2.png