Restore key window on dismissal

Author: wtmoose

CHANGELOG.md

@@ -1,6 +1,12 @@
 # Change Log
 All notable changes to this project will be documented in this file.
 
+## 8.0.5
+
+### FeaturesFixes
+
+* #446 Restore previous key window on dismissal if the message assumed key window status.
+
 ## 8.0.4
 
 ### Features

README.md

@@ -14,7 +14,7 @@
 
 SwiftMessages is a very flexible view and view controller presentation library for iOS.
 
-Message views and view controllers can be displayed at the top, bottom, or center of the screen, over or under the status bar, or behind navigation bars and tab bars. There are interactive dismiss gestures including a fun, physics-based one. Multiple background dimming modes. And a lot more!
+Message views and view controllers can be displayed at the top, bottom, or center of the screen, or behind navigation bars and tab bars. There are interactive dismiss gestures including a fun, physics-based one. Multiple background dimming modes. And a lot more!
 
 In addition to the numerous configuration options, SwiftMessages provides several good-looking layouts and themes. But SwiftMessages is also designer-friendly, which means you can fully and easily customize the view:
 
@@ -135,10 +135,13 @@ var config = SwiftMessages.Config()
 // Slide up from the bottom.
 config.presentationStyle = .bottom
 
-// Display in a window at the specified window level: UIWindow.Level.statusBar
-// displays over the status bar while UIWindow.Level.normal displays under.
+// Display in a window at the specified window level.
 config.presentationContext = .window(windowLevel: .statusBar)
 
+Note that, as of iOS 13, it is no longer possible to cover the status bar
+regardless of the window level. A workaround is to hide the status bar instead.
+config.prefersStatusBarHidden = true
+
 // Disable the default auto-hiding behavior.
 config.duration = .forever
 

SwiftMessages.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name             = 'SwiftMessages'
-    spec.version          = '8.0.4'
+    spec.version          = '8.0.5'
     spec.license          = { :type => 'MIT' }
     spec.homepage         = 'https://github.com/SwiftKickMobile/SwiftMessages'
     spec.authors          = { 'Timothy Moose' => 'tim@swiftkick.it' }

SwiftMessages/WindowViewController.swift

@@ -10,11 +10,6 @@ import UIKit
 
 open class WindowViewController: UIViewController
 {
-    fileprivate var window: UIWindow?
-    
-    let windowLevel: UIWindow.Level
-    let config: SwiftMessages.Config
-    
     override open var shouldAutorotate: Bool {
         return config.shouldAutorotate
     }
@@ -41,6 +36,9 @@ open class WindowViewController: UIViewController
     @available(iOS 13, *)
     func install(becomeKey: Bool, scene: UIWindowScene?) {
         window?.windowScene = scene
+        if becomeKey {
+            previousKeyWindow = UIApplication.shared.keyWindow
+        }
         show(becomeKey: becomeKey, frame: scene?.coordinateSpace.bounds)
     }
 
@@ -60,6 +58,7 @@ open class WindowViewController: UIViewController
         }
         window?.isHidden = true
         window = nil
+        previousKeyWindow?.makeKeyAndVisible()
     }
 
     required public init?(coder aDecoder: NSCoder) {
@@ -73,6 +72,15 @@ open class WindowViewController: UIViewController
     open override var prefersStatusBarHidden: Bool {
         return config.prefersStatusBarHidden ?? super.prefersStatusBarHidden
     }
+
+    // MARK: - Variables
+
+    let windowLevel: UIWindow.Level
+
+    private var window: UIWindow?
+    private weak var previousKeyWindow: UIWindow?
+
+    private let config: SwiftMessages.Config
 }
 
 extension WindowViewController {