Feature/active label

.travis.yml

@@ -9,16 +9,24 @@ env:
     - WORKSPACE=UtiliKit.xcworkspace
     - IOS_FRAMEWORK_SCHEME=UtiliKit-iOS
   matrix:
-    - DESTINATION="platform=iOS Simulator,OS=11.2,name=iPhone X"                        SCHEME="$IOS_FRAMEWORK_SCHEME"      RUN_TESTS="YES" POD_LINT="YES"  RUN_DANGER="YES"
+    - DESTINATION="platform=iOS Simulator,OS=12.2,name=iPhone X"                        SCHEME="$IOS_FRAMEWORK_SCHEME"      RUN_TESTS="YES" POD_LINT="YES"  RUN_DANGER="YES"
     #- DESTINATION="platform=tvOS Simulator,OS=11.2,name=Apple TV 4K"                    SCHEME="$TVOS_FRAMEWORK_SCHEME"     RUN_TESTS="YES" POD_LINT="NO"  RUN_DANGER="NO"
     #- DESTINATION="platform=watchOS Simulator,OS=4.2,name=Apple Watch Series 3 - 42mm"  SCHEME="$WATCHOS_FRAMEWORK_SCHEME"  RUN_TESTS="NO"  POD_LINT="NO"  RUN_DANGER="NO"
+cache:
+  directories:
+    - Carthage
+    - ~/.danger-swift
 addons:
   homebrew:
     update: true
     taps:
       - danger/tap
     packages:
+      - carthage
       - danger-swift
+before_install:
+  - carthage bootstrap --verbose --no-use-binaries --platform iOS,tvOS,watchOS --cache-builds
+
 script:
   #- swiftlint
   - set -o pipefail

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ##### Enhancements
 
+* Add `ActiveLabel` class to help show activity on a label.
+[Brian Miller](https://github.com/JobsIsMyHomeboy)
+[#55](https://github.com/BottleRocketStudios/iOS-UtiliKit/pull/55)
+
 * Add support for `Configurable` types when dequeuing reusable views.
 [Will McGinty](https://github.com/willmcginty)
 [#53](https://github.com/BottleRocketStudios/iOS-UtiliKit/pull/58)

Cartfile

@@ -0,0 +1 @@
+github "pointfreeco/swift-snapshot-testing" ~> 1.5

Cartfile.resolved

@@ -0,0 +1 @@
+github "pointfreeco/swift-snapshot-testing" "1.5.0"

Examples/UtiliKit-iOSExample/ViewController/ActiveLabelViewController.swift

@@ -0,0 +1,18 @@
+//
+//  ActiveLabelViewController.swift
+//  UtiliKit-iOS
+//
+//  Copyright © 2019 CocoaPods. All rights reserved.
+//
+
+import UIKit
+
+class ActiveLabelViewController: UIViewController {
+    @IBOutlet private var activeLabels: [ActiveLabel]!
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        activeLabels.forEach { $0.text = nil } 
+    }
+}

README.md

@@ -181,7 +181,50 @@ func containerViewController(_ container: ContainerViewController, animationCont
 
     return nil
 }
+``` 
+
+#### ActiveLabel
+`ActiveLabel` is a `UILabel` subclass that adds horizontal activity indicators to your label while its `text` property is set to `nil`. You can customize this view quite a bit in code or in Interface Builder to fit your specific needs. The purpose of this subclass is to have a visual indication at the label level while you are loading data into labels.
+
+Default Configuration
+``` swift
+let label: ActiveLabel = ActiveLabel()
+```
+![](docs/images/ActiveLabelDefault.gif)
+
+Custom Configuration
+``` swift
+let label: ActiveLabel = ActiveLabel()
+label.estimatedNumberOfLines = 3
+label.finalLineTrailingInset = 100
+```
+![](docs/images/ActiveLabelEdited01.gif)
+
+Custom Configuration using convenience initializer.
+``` swift
+var configuration = ActiveLabelConfiguration.default
+configuration.estimatedNumberOfLines = 3
+configuration.finalLineLength = 100
+configuration.loadingView.animationDuration = 2.0
+configuration.loadingView.animationDelay = 0
+let label: ActiveLabel = ActiveLabel(frame: CGRect(x: 0, y: 0, width: 335, height: 21), configuration: configuration)
 ```
+![](docs/images/ActiveLabelEdited02.gif)
+
+Add some color, change line height and spacing.
+``` swift
+let label: ActiveLabel = ActiveLabel()
+label.estimatedNumberOfLines = 3
+label.finalLineTrailingInset = 100
+label.loadingView.color = UIColor(red: 233.0/255.0, green: 231.0/255.0, blue: 237.0/255.0, alpha: 1.0))
+label.loadingView.lineHeight = 16
+label.loadingView.lineVerticalSpacing = 8
+```
+![](docs/images/ActiveLabelEdited03.gif)
+
+When initializing `ActiveLabel` in Storyboards or Xibs you must set the labels text to `nil` in code because IB initializes labels with an empty string value.
+
+When using `ActiveLabel` for snapshot tests you can center the gradient by calling `configureForSnapshotTest()` on your label.
 
 ### Example