├── .DS_Store
├── GradientNavBarDemo.xcodeproj
    ├── project.pbxproj
    ├── project.xcworkspace
    │   ├── contents.xcworkspacedata
    │   ├── xcshareddata
    │   │   └── IDEWorkspaceChecks.plist
    │   └── xcuserdata
    │   │   └── diegobustamante.xcuserdatad
    │   │       └── UserInterfaceState.xcuserstate
    └── xcuserdata
    │   └── diegobustamante.xcuserdatad
    │       └── xcschemes
    │           └── xcschememanagement.plist
├── GradientNavBarDemo
    ├── AppDelegate.swift
    ├── Assets.xcassets
    │   ├── AppIcon.appiconset
    │   │   └── Contents.json
    │   └── Contents.json
    ├── Base.lproj
    │   ├── LaunchScreen.storyboard
    │   └── Main.storyboard
    ├── Info.plist
    ├── SceneDelegate.swift
    ├── UIViewControllerExtensions.swift
    └── ViewController.swift
└── README.md


/.DS_Store:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ModernProgrammer/GradientNavBarDemo/04b00783e426b9eb90a676e0a2a5dd04b124bcfa/.DS_Store


--------------------------------------------------------------------------------
/GradientNavBarDemo.xcodeproj/project.pbxproj:
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1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Workspace
3 |    version = "1.0">
4 |    <FileRef
5 |       location = "self:GradientNavBarDemo.xcodeproj">
6 |    </FileRef>
7 | </Workspace>
8 | 


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/GradientNavBarDemo.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist:
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1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3 | <plist version="1.0">
4 | <dict>
5 | 	<key>IDEDidComputeMac32BitWarning</key>
6 | 	<true/>
7 | </dict>
8 | </plist>
9 | 


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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>SchemeUserState</key>
 6 | 	<dict>
 7 | 		<key>GradientNavBarDemo.xcscheme_^#shared#^_</key>
 8 | 		<dict>
 9 | 			<key>orderHint</key>
10 | 			<integer>0</integer>
11 | 		</dict>
12 | 	</dict>
13 | </dict>
14 | </plist>
15 | 


--------------------------------------------------------------------------------
/GradientNavBarDemo/AppDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.swift
 3 | //  GradientNavBarDemo
 4 | //
 5 | //  Created by Diego Bustamante on 2/9/20.
 6 | //  Copyright © 2020 Diego Bustamante. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | @UIApplicationMain
12 | class AppDelegate: UIResponder, UIApplicationDelegate {
13 | 
14 | 
15 | 
16 |     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
17 |         // Override point for customization after application launch.
18 |         return true
19 |     }
20 | 
21 |     // MARK: UISceneSession Lifecycle
22 | 
23 |     func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
24 |         // Called when a new scene session is being created.
25 |         // Use this method to select a configuration to create the new scene with.
26 |         return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
27 |     }
28 | 
29 |     func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
30 |         // Called when the user discards a scene session.
31 |         // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
32 |         // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
33 |     }
34 | 
35 | 
36 | }
37 | 
38 | 


--------------------------------------------------------------------------------
/GradientNavBarDemo/Assets.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "size" : "20x20",
 6 |       "scale" : "2x"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "size" : "20x20",
11 |       "scale" : "3x"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "size" : "29x29",
16 |       "scale" : "2x"
17 |     },
18 |     {
19 |       "idiom" : "iphone",
20 |       "size" : "29x29",
21 |       "scale" : "3x"
22 |     },
23 |     {
24 |       "idiom" : "iphone",
25 |       "size" : "40x40",
26 |       "scale" : "2x"
27 |     },
28 |     {
29 |       "idiom" : "iphone",
30 |       "size" : "40x40",
31 |       "scale" : "3x"
32 |     },
33 |     {
34 |       "idiom" : "iphone",
35 |       "size" : "60x60",
36 |       "scale" : "2x"
37 |     },
38 |     {
39 |       "idiom" : "iphone",
40 |       "size" : "60x60",
41 |       "scale" : "3x"
42 |     },
43 |     {
44 |       "idiom" : "ipad",
45 |       "size" : "20x20",
46 |       "scale" : "1x"
47 |     },
48 |     {
49 |       "idiom" : "ipad",
50 |       "size" : "20x20",
51 |       "scale" : "2x"
52 |     },
53 |     {
54 |       "idiom" : "ipad",
55 |       "size" : "29x29",
56 |       "scale" : "1x"
57 |     },
58 |     {
59 |       "idiom" : "ipad",
60 |       "size" : "29x29",
61 |       "scale" : "2x"
62 |     },
63 |     {
64 |       "idiom" : "ipad",
65 |       "size" : "40x40",
66 |       "scale" : "1x"
67 |     },
68 |     {
69 |       "idiom" : "ipad",
70 |       "size" : "40x40",
71 |       "scale" : "2x"
72 |     },
73 |     {
74 |       "idiom" : "ipad",
75 |       "size" : "76x76",
76 |       "scale" : "1x"
77 |     },
78 |     {
79 |       "idiom" : "ipad",
80 |       "size" : "76x76",
81 |       "scale" : "2x"
82 |     },
83 |     {
84 |       "idiom" : "ipad",
85 |       "size" : "83.5x83.5",
86 |       "scale" : "2x"
87 |     },
88 |     {
89 |       "idiom" : "ios-marketing",
90 |       "size" : "1024x1024",
91 |       "scale" : "1x"
92 |     }
93 |   ],
94 |   "info" : {
95 |     "version" : 1,
96 |     "author" : "xcode"
97 |   }
98 | }


--------------------------------------------------------------------------------
/GradientNavBarDemo/Assets.xcassets/Contents.json:
--------------------------------------------------------------------------------
1 | {
2 |   "info" : {
3 |     "version" : 1,
4 |     "author" : "xcode"
5 |   }
6 | }


--------------------------------------------------------------------------------
/GradientNavBarDemo/Base.lproj/LaunchScreen.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
 5 |         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
 6 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 7 |     </dependencies>
 8 |     <scenes>
 9 |         <!--View Controller-->
10 |         <scene sceneID="EHf-IW-A2E">
11 |             <objects>
12 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
13 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
14 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
15 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
16 |                         <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
17 |                         <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
18 |                     </view>
19 |                 </viewController>
20 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
21 |             </objects>
22 |             <point key="canvasLocation" x="53" y="375"/>
23 |         </scene>
24 |     </scenes>
25 | </document>
26 | 


--------------------------------------------------------------------------------
/GradientNavBarDemo/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
 5 |         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
 6 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 7 |     </dependencies>
 8 |     <scenes>
 9 |         <!--View Controller-->
10 |         <scene sceneID="tne-QT-ifu">
11 |             <objects>
12 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" customModuleProvider="target" sceneMemberID="viewController">
13 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
14 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
15 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
16 |                         <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
17 |                         <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
18 |                     </view>
19 |                 </viewController>
20 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
21 |             </objects>
22 |         </scene>
23 |     </scenes>
24 | </document>
25 | 


--------------------------------------------------------------------------------
/GradientNavBarDemo/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | 	<key>LSRequiresIPhoneOS</key>
22 | 	<true/>
23 | 	<key>UIApplicationSceneManifest</key>
24 | 	<dict>
25 | 		<key>UIApplicationSupportsMultipleScenes</key>
26 | 		<false/>
27 | 		<key>UISceneConfigurations</key>
28 | 		<dict>
29 | 			<key>UIWindowSceneSessionRoleApplication</key>
30 | 			<array>
31 | 				<dict>
32 | 					<key>UISceneConfigurationName</key>
33 | 					<string>Default Configuration</string>
34 | 					<key>UISceneDelegateClassName</key>
35 | 					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
36 | 					<key>UISceneStoryboardFile</key>
37 | 					<string>Main</string>
38 | 				</dict>
39 | 			</array>
40 | 		</dict>
41 | 	</dict>
42 | 	<key>UILaunchStoryboardName</key>
43 | 	<string>LaunchScreen</string>
44 | 	<key>UIMainStoryboardFile</key>
45 | 	<string>Main</string>
46 | 	<key>UIRequiredDeviceCapabilities</key>
47 | 	<array>
48 | 		<string>armv7</string>
49 | 	</array>
50 | 	<key>UISupportedInterfaceOrientations</key>
51 | 	<array>
52 | 		<string>UIInterfaceOrientationPortrait</string>
53 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
54 | 		<string>UIInterfaceOrientationLandscapeRight</string>
55 | 	</array>
56 | 	<key>UISupportedInterfaceOrientations~ipad</key>
57 | 	<array>
58 | 		<string>UIInterfaceOrientationPortrait</string>
59 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
60 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
61 | 		<string>UIInterfaceOrientationLandscapeRight</string>
62 | 	</array>
63 | </dict>
64 | </plist>
65 | 


--------------------------------------------------------------------------------
/GradientNavBarDemo/SceneDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  SceneDelegate.swift
 3 | //  GradientNavBarDemo
 4 | //
 5 | //  Created by Diego Bustamante on 2/9/20.
 6 | //  Copyright © 2020 Diego Bustamante. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class SceneDelegate: UIResponder, UIWindowSceneDelegate {
12 | 
13 |     var window: UIWindow?
14 | 
15 |     
16 |     func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
17 |         guard let windowScene = (scene as? UIWindowScene) else { return }
18 |         self.window = UIWindow(windowScene: windowScene)
19 |         let viewController = ViewController()
20 |         let navViewController = UINavigationController(rootViewController: viewController)
21 |         self.window?.rootViewController = navViewController
22 |         self.window?.makeKeyAndVisible()
23 |     }
24 | 
25 |     func sceneDidDisconnect(_ scene: UIScene) {
26 |         // Called as the scene is being released by the system.
27 |         // This occurs shortly after the scene enters the background, or when its session is discarded.
28 |         // Release any resources associated with this scene that can be re-created the next time the scene connects.
29 |         // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
30 |     }
31 | 
32 |     func sceneDidBecomeActive(_ scene: UIScene) {
33 |         // Called when the scene has moved from an inactive state to an active state.
34 |         // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
35 |     }
36 | 
37 |     func sceneWillResignActive(_ scene: UIScene) {
38 |         // Called when the scene will move from an active state to an inactive state.
39 |         // This may occur due to temporary interruptions (ex. an incoming phone call).
40 |     }
41 | 
42 |     func sceneWillEnterForeground(_ scene: UIScene) {
43 |         // Called as the scene transitions from the background to the foreground.
44 |         // Use this method to undo the changes made on entering the background.
45 |     }
46 | 
47 |     func sceneDidEnterBackground(_ scene: UIScene) {
48 |         // Called as the scene transitions from the foreground to the background.
49 |         // Use this method to save data, release shared resources, and store enough scene-specific state information
50 |         // to restore the scene back to its current state.
51 |     }
52 | 
53 | 
54 | }
55 | 
56 | 


--------------------------------------------------------------------------------
/GradientNavBarDemo/UIViewControllerExtensions.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  UIViewControllerExtensions.swift
 3 | //  GradientNavBarDemo
 4 | //
 5 | //  Created by Diego Bustamante on 2/9/20.
 6 | //  Copyright © 2020 Diego Bustamante. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | extension UIViewController {
12 |     func setupClearNavBar() {
13 |         navigationController?.navigationBar.setBackgroundImage(UIImage(), for: .default)
14 |         navigationController?.navigationBar.shadowImage = UIImage()
15 |         navigationController?.navigationBar.barTintColor = .clear
16 |         navigationController?.navigationBar.isTranslucent = true
17 |     }
18 |     
19 |     func setupGradient(height: CGFloat, topColor: CGColor, bottomColor: CGColor) ->  CAGradientLayer {
20 |          let gradient: CAGradientLayer = CAGradientLayer()
21 |          gradient.colors = [topColor,bottomColor]
22 |          gradient.locations = [0.0 , 1.0]
23 |          gradient.startPoint = CGPoint(x: 0.0, y: 0.0)
24 |          gradient.endPoint = CGPoint(x: 0.0, y: 1.0)
25 |          gradient.frame = CGRect(x: 0.0, y: 0.0, width: self.view.frame.size.width, height: height)
26 |          return gradient
27 |     }
28 | }
29 | 


--------------------------------------------------------------------------------
/GradientNavBarDemo/ViewController.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.swift
 3 | //  GradientNavBarDemo
 4 | //
 5 | //  Created by Diego Bustamante on 2/9/20.
 6 | //  Copyright © 2020 Diego Bustamante. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
12 |     
13 |     let cellId = "cellId"
14 |     lazy var collectionView : UICollectionView = {
15 |         let layout = UICollectionViewFlowLayout()
16 |         let collectionView = UICollectionView(frame: view.frame, collectionViewLayout: layout)
17 |         collectionView.dataSource = self
18 |         collectionView.delegate = self
19 |         collectionView.alwaysBounceVertical = true
20 |         collectionView.contentInsetAdjustmentBehavior = .never
21 |         collectionView.showsVerticalScrollIndicator = false
22 |         collectionView.backgroundColor = .clear
23 |         collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: cellId)
24 |         return collectionView
25 |     }()
26 |     
27 |     var gradient : CAGradientLayer?
28 |     let gradientView : UIView = {
29 |         let view = UIView()
30 |         return view
31 |     }()
32 |     
33 |     override func viewDidLoad() {
34 |         super.viewDidLoad()
35 |         // Do any additional setup after loading the view.
36 |         navigationItem.title = "A NavBar"
37 |         setupCollectionView()
38 |         setupClearNavBar()
39 |         setupGradient()
40 |     }
41 |     
42 |     func setupCollectionView() {
43 |         view.addSubview(collectionView)
44 |         NSLayoutConstraint.activate([
45 |             collectionView.topAnchor.constraint(equalTo: view.topAnchor),
46 |             collectionView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
47 |             collectionView.leftAnchor.constraint(equalTo: view.leftAnchor),
48 |             collectionView.rightAnchor.constraint(equalTo: view.rightAnchor)
49 |         ])
50 |     }
51 |     
52 |     func setupGradient() {
53 |         // Calculates the size of NavBar (Either large or normal)
54 |         //guard let height = navigationController?.navigationBar.frame.height else { return }
55 |         let height : CGFloat = 90
56 |         let color = UIColor.black.withAlphaComponent(0.7).cgColor
57 |         let clear = UIColor.black.withAlphaComponent(0.0).cgColor
58 |         gradient = setupGradient(height: height, topColor: color,bottomColor: clear)
59 |         view.addSubview(gradientView)
60 |         NSLayoutConstraint.activate([
61 |             gradientView.topAnchor.constraint(equalTo: view.topAnchor),
62 |             gradientView.leftAnchor.constraint(equalTo: view.leftAnchor),
63 |         ])
64 |         gradientView.layer.insertSublayer(gradient!, at: 0)
65 |     }
66 | }
67 | 
68 | extension ViewController {
69 |     func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
70 |         return 42
71 |     }
72 |     
73 |     func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
74 |         let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId, for: indexPath)
75 |         cell.backgroundColor = .red
76 |         return cell
77 |     }
78 |     
79 |     func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
80 |         let size = view.frame.width/3 - 1
81 |         return CGSize(width: size, height: size)
82 |     }
83 |     
84 |     func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
85 |         return 1
86 |     }
87 |     
88 |     func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
89 |         return 1
90 |     }
91 | }
92 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # GradientNavBarDemo
2 | 


--------------------------------------------------------------------------------