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Programming language: Swift
License: MIT License
Tags: UI    

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README

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

Swift Version Build Status [License][license-url] CocoaPods Compatible Platform

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

Table of contents

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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 to install ShadowView by adding it to your Podfile:

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '9.0'
use_frameworks!

target '<Your Target Name>' do
pod 'ShadowView'
end

Carthage

  1. Install Carthage via Homebrew
$ brew update
$ brew install carthage

  1. Add github "PierrePerrin/ShadowView" to your Cartfile.

  2. Run carthage update.

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

  4. 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

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.

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. 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.

Programmatically

Normal Shadows

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

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.

    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


//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 on it.

Meta

Pierre Perrin – pierreperrin@outlook.com

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

https://github.com/PierrePerrin/


*Note that all licence references and agreements mentioned in the ShadowView README section above are relevant to that project's source code only.