Added fade update method.

Author: ivanvorobei

Example Apps/SparrowKit.xcodeproj/project.xcworkspace/xcuserdata/ivanvorobei.xcuserdatad/UserInterfaceState.xcuserstate

@@ -23,10 +23,10 @@
 import Foundation
 #endif
 #if !os(Linux)
-  import CoreGraphics
+import CoreGraphics
 #endif
 #if os(iOS) || os(tvOS)
-  import UIKit.UIGeometry
+import UIKit.UIGeometry
 #endif
 
 public protocol Do {}
@@ -61,18 +61,18 @@ extension Do where Self: Any {
 extension NSObject: Do {}
 
 #if !os(Linux)
-  extension CGPoint: Do {}
-  extension CGRect: Do {}
-  extension CGSize: Do {}
-  extension CGVector: Do {}
+extension CGPoint: Do {}
+extension CGRect: Do {}
+extension CGSize: Do {}
+extension CGVector: Do {}
 #endif
 
 extension Array: Do {}
 extension Dictionary: Do {}
 extension Set: Do {}
 
 #if os(iOS) || os(tvOS)
-  extension UIEdgeInsets: Do {}
-  extension UIOffset: Do {}
-  extension UIRectEdge: Do {}
+extension UIEdgeInsets: Do {}
+extension UIOffset: Do {}
+extension UIRectEdge: Do {}
 #endif

Sources/SparrowKit/Foundation/Extensions/Do.swift

@@ -84,25 +84,6 @@ extension UILabel {
             frame.setWidth(width)
         }
     }
-    
-    // MARK: - Animations
-    
-    /**
-     SparrowKit: Set new text via fade animation.
-     
-     - parameter newText: New text for label.
-     - parameter duration: Time of full animation.
-     - parameter completion: Call at end of animation.
-     */
-    open func setTextWithFade(newText: String, duration: TimeInterval = 0.6, completion: (()->Void)? = nil) {
-        fadeOut(duration: duration / 2) { [weak self] _ in
-            guard let self = self else { return }
-            self.text = newText
-            self.fadeIn(duration: duration / 2) { _ in
-                completion?()
-            }
-        }
-    }
 }
 
 #endif

Sources/SparrowKit/UIKit/Extensions/UILabelExtension.swift

@@ -0,0 +1,58 @@
+// The MIT License (MIT)
+// Copyright © 2020 Ivan Vorobei (hello@ivanvorobei.by)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#if canImport(UIKit) && (os(iOS) || os(tvOS))
+import UIKit
+
+public protocol UIFadeOut {}
+
+extension UIFadeOut where Self: UIView {
+    
+    /**
+     SparrowKit: Hide view with fade out animation.
+     
+     - parameter duration: Duration of all animation.
+     - parameter delay: Pause when view dissapear in middle of animation.
+     - parameter work: Apply view changes here.
+     - parameter completion: Call after end of animation.
+     */
+    public func fadeUpdate(duration: TimeInterval = 0.6, delay: TimeInterval = 0.1, work: @escaping (Self)->Void, completion: @escaping ()->Void) {
+        let partDuration = (duration - delay) / 2
+        let storedAlpha = self.alpha
+        UIView.animate(withDuration: partDuration, delay: .zero, options: [.beginFromCurrentState, .allowUserInteraction], animations: { [weak self] in
+            self?.alpha = .zero
+        }, completion: { [weak self] finished in
+            if let self = self {
+                work(self)
+            }
+            UIView.animate(withDuration: partDuration, delay: delay, options: [.beginFromCurrentState, .allowUserInteraction], animations: { [weak self] in
+                self?.alpha = storedAlpha
+            }, completion: { finished in
+                completion()
+            })
+        })
+    }
+}
+
+extension UIView: UIFadeOut {}
+
+#endif
+

Sources/SparrowKit/UIKit/Extensions/UIViewExtension+FadeOut.swift

@@ -382,8 +382,6 @@ extension UIView {
         motionEffects.removeAll()
     }
 
-    // MARK: - Animations
-    
     /**
      SparrowKit: Appear view with fade in animation.
 

Sources/SparrowKit/UIKit/Extensions/UIViewExtension.swift

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name = 'SparrowKit'
-  s.version = '3.2.1'
+  s.version = '3.2.2'
   s.summary = 'Collection of native Swift extensions to boost your development. Support tvOS and watchOS.'
   s.homepage = 'https://github.com/ivanvorobei/SparrowKit'
   s.source = { :git => 'https://github.com/ivanvorobei/SparrowKit.git', :tag => s.version }