FluidGroup · muukii · May 8, 2024
diff --git a/Development/Development.xcodeproj/project.pbxproj b/Development/Development.xcodeproj/project.pbxproj
@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		4B7DF0652BEA8D7A00C59107 /* BookHosting.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B7DF0642BEA8D7900C59107 /* BookHosting.swift */; };
 		4B7E762429B9A1EF009DE246 /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B7E762329B9A1EF009DE246 /* ContentView.swift */; };
 		4B7E762629B9A1F0009DE246 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 4B7E762529B9A1F0009DE246 /* Assets.xcassets */; };
 		4B7E762929B9A1F0009DE246 /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 4B7E762829B9A1F0009DE246 /* Preview Assets.xcassets */; };
@@ -18,6 +19,7 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		4B7DF0642BEA8D7900C59107 /* BookHosting.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BookHosting.swift; sourceTree = "<group>"; };
 		4B7E761E29B9A1EF009DE246 /* Development.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Development.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		4B7E762329B9A1EF009DE246 /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
 		4B7E762529B9A1F0009DE246 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
@@ -87,6 +89,7 @@
 			isa = PBXGroup;
 			children = (
 				4B7E763729B9B105009DE246 /* BookSizing.swift */,
+				4B7DF0642BEA8D7900C59107 /* BookHosting.swift */,
 			);
 			path = Book;
 			sourceTree = "<group>";
@@ -174,6 +177,7 @@
 			files = (
 				4B7E763029B9A214009DE246 /* AppDelegate.swift in Sources */,
 				4B7E762429B9A1EF009DE246 /* ContentView.swift in Sources */,
+				4B7DF0652BEA8D7A00C59107 /* BookHosting.swift in Sources */,
 				4B7E763829B9B105009DE246 /* BookSizing.swift in Sources */,
 				4B7E763B29B9B143009DE246 /* Util.swift in Sources */,
 			);
@@ -312,7 +316,7 @@
 				INFOPLIST_KEY_UILaunchStoryboardName = "Launch Screen.storyboard";
 				INFOPLIST_KEY_UISupportedInterfaceOrientations = UIInterfaceOrientationPortrait;
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown";
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 14.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -342,7 +346,7 @@
 				INFOPLIST_KEY_UILaunchStoryboardName = "Launch Screen.storyboard";
 				INFOPLIST_KEY_UISupportedInterfaceOrientations = UIInterfaceOrientationPortrait;
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown";
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 14.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",

diff --git a/Development/Development/Book/BookHosting.swift b/Development/Development/Book/BookHosting.swift
@@ -0,0 +1,53 @@
+import SwiftUI
+import SwiftUIHosting
+
+@available(iOS 14.0, *)
+struct BookHosting: View, PreviewProvider {
+  var body: some View {
+    ContentView()
+  }
+
+  static var previews: some View {
+    Self()
+  }
+
+  private struct ContentView: View {
+
+    @State var text: String = ""
+
+    var body: some View {
+      HostingViewHost {
+        VStack {
+          Color.purple.frame(width: 100, height: 100)
+          TextField("Text", text: $text)
+          Color.purple.frame(width: 100, height: 100)
+        }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+        .ignoresSafeArea(.keyboard)
+        .background(Color(white: 0.1))
+      }
+//      .ignoresSafeArea()
+//      .background(Color(white: 0.1))
+    }
+  }
+}
+
+private struct HostingViewHost<Content: View>: UIViewRepresentable {
+
+  let content: () -> Content
+
+  init(@ViewBuilder content: @escaping () -> Content) {
+    self.content = content
+  }
+
+  func makeUIView(context: Context) -> UIView {
+//    _UIHostingView(rootView: AnyView(content()))
+    SwiftUIHostingView {
+      content()
+    }
+  }
+
+  func updateUIView(_ uiView: UIView, context: Context) {
+    // Nothing
+  }
+}
diff --git a/Development/Development/ContentView.swift b/Development/Development/ContentView.swift
@@ -9,13 +9,19 @@ import SwiftUI
 
 struct ContentView: View {
   var body: some View {
-    NavigationView {
-      List {        
-        NavigationLink("Content") {
-          BookSizing()
-        }
-      }
-    }
+//    NavigationView {
+//      List {        
+//        NavigationLink("Content") {
+//          BookSizing()
+//        }
+//        if #available(iOS 14.0, *) {
+//          NavigationLink("Hosting") {
+//            BookHosting()
+//          }
+//        }
+//      }
+//    }    
+    BookHosting()
   }
 }
 

diff --git a/Development/Development/Util.swift b/Development/Development/Util.swift
@@ -4,6 +4,16 @@ import SwiftUIHosting
 
 func measureSize(content: some View, targetSize: CGSize) {
 
+  do {
+    if #available(iOS 15.0, *) {
+      let a = _makeUIHostingController(AnyView(content), tracksContentSize: true, secure: false)
+      print(a)
+    } else {
+      // Fallback on earlier versions
+    }
+
+  }
+
   do {
     let size = UIHostingController(rootView: content).sizeThatFits(in: targetSize)
     print("System SizeThatFits:", size)

diff --git a/Sources/SwiftUIHosting/HostingController.swift b/Sources/SwiftUIHosting/HostingController.swift
@@ -15,6 +15,28 @@ final class HostingController<Content: View>: UIHostingController<Content> {
 #else
     _disableSafeArea = disableSafeArea
 #endif
+
+    if true {
+      guard let viewClass = object_getClass(view) else { return }
+
+      let viewSubclassName = String(cString: class_getName(viewClass)).appending("_IgnoresKeyboard")
+      if let viewSubclass = NSClassFromString(viewSubclassName) {
+        object_setClass(view, viewSubclass)
+      }
+      else {
+        guard let viewClassNameUtf8 = (viewSubclassName as NSString).utf8String else { return }
+        guard let viewSubclass = objc_allocateClassPair(viewClass, viewClassNameUtf8, 0) else { return }
+
+        if let method = class_getInstanceMethod(viewClass, NSSelectorFromString("keyboardWillShowWithNotification:")) {
+          let keyboardWillShow: @convention(block) (AnyObject, AnyObject) -> Void = { _, _ in }
+          class_addMethod(viewSubclass, NSSelectorFromString("keyboardWillShowWithNotification:"),
+                          imp_implementationWithBlock(keyboardWillShow), method_getTypeEncoding(method))
+        }
+        objc_registerClassPair(viewSubclass)
+        object_setClass(view, viewSubclass)
+      }
+    }
+
   }
 
   @MainActor required dynamic init?(coder aDecoder: NSCoder) {

diff --git a/Sources/SwiftUIHosting/SwiftUIHostingView.swift b/Sources/SwiftUIHosting/SwiftUIHostingView.swift
@@ -48,7 +48,7 @@ open class SwiftUIHostingView: UIView {
     }
   }
 
-  private let hostingController: HostingController<AnyView>
+  private let hostingController: UIHostingController<AnyView>
 
   public let configuration: Configuration
 
@@ -93,10 +93,10 @@ open class SwiftUIHostingView: UIView {
       hostingController.view.leftAnchor.constraint(equalTo: leftAnchor),
     ])
 
-    hostingController.onViewDidLayoutSubviews = { controller in
-      // TODO: Reduces number of calling invalidation, it's going to be happen even it's same value.
-      controller.view.invalidateIntrinsicContentSize()
-    }
+//    hostingController.onViewDidLayoutSubviews = { controller in
+//      // TODO: Reduces number of calling invalidation, it's going to be happen even it's same value.
+//      controller.view.invalidateIntrinsicContentSize()
+//    }
   }
 
   @available(*, unavailable)