might be finished updating chapter 10 examples

Author: mattneub

bk2ch10p497downloadableFonts/ch23p670font1dynamicType/ch23p770font2downloadableFont-Info.plist renamed to bk2ch10p497downloadableFonts/ch23p670font1dynamicType/Info.plist

@@ -21,7 +21,7 @@
 		322C69B11B94D72D0021A09F /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		328BC5C5198ABB690062D99A /* ViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
 		C9DDA0D9180DC5E900E9E0CC /* ch23p770font2downloadableFont.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = ch23p770font2downloadableFont.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		C9DDA0E4180DC5E900E9E0CC /* ch23p770font2downloadableFont-Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = "ch23p770font2downloadableFont-Info.plist"; sourceTree = "<group>"; };
+		C9DDA0E4180DC5E900E9E0CC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		C9DDA0EF180DC5E900E9E0CC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		C9DDA0F4180DC5E900E9E0CC /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@@ -62,7 +62,7 @@
 				C9DDA0F4180DC5E900E9E0CC /* Assets.xcassets */,
 				322C69AF1B94D7060021A09F /* LaunchScreen.storyboard */,
 				32299BE5198AD45900017BF4 /* SourceCodePro-Regular.ttf */,
-				C9DDA0E4180DC5E900E9E0CC /* ch23p770font2downloadableFont-Info.plist */,
+				C9DDA0E4180DC5E900E9E0CC /* Info.plist */,
 			);
 			name = ch23p770font1dynamicType;
 			path = ch23p670font1dynamicType;

bk2ch10p497downloadableFonts/ch23p770font2downloadableFont.xcodeproj/project.pbxproj

@@ -245,7 +245,7 @@
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "TextTabTest/TextTabTest-Prefix.pch";
 				INFOPLIST_FILE = "TextTabTest/TextTabTest-Info.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				ONLY_ACTIVE_ARCH = NO;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -266,7 +266,7 @@
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "TextTabTest/TextTabTest-Prefix.pch";
 				INFOPLIST_FILE = "TextTabTest/TextTabTest-Info.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				ONLY_ACTIVE_ARCH = NO;
 				PRODUCT_NAME = "$(TARGET_NAME)";

bk2ch10p507tabStops/TextTabTest.xcodeproj/project.pbxproj

@@ -129,15 +129,15 @@ class ViewController : UIViewController {
 
 }
 
-@available(iOS 10.0, *)
 extension ViewController : UITextViewDelegate {
     func textView(_ textView: UITextView, shouldInteractWith textAttachment: NSTextAttachment, in characterRange: NSRange, interaction:UITextItemInteraction) -> Bool {
-        print(interaction.rawValue)
+        print("attachment", interaction.rawValue)
+        if interaction == .preview {return false}
         return true
     }
 
-    func textView(_ textView: UITextView, shouldInteractWith URL: Foundation.URL, in characterRange: NSRange, interaction:UITextItemInteraction) -> Bool {
-        print(URL)
+    func textView(_ textView: UITextView, shouldInteractWith url: Foundation.URL, in characterRange: NSRange, interaction:UITextItemInteraction) -> Bool {
+        print("URL", url)
         print((textView.text as NSString).substring(with:characterRange))
         print(interaction.rawValue)
         return true

bk2ch10p507tabStops/TextTabTest/ViewController.swift

@@ -85,7 +85,7 @@ class ViewController: UIViewController, UITextFieldDelegate {
         let (state, _) = keyboardState(for:d, in:self.scrollView)
         if state == .exiting {
             print("really hiding")
-            // store original setup
+            // restore original setup
             self.scrollView.contentOffset = self.oldOffset
             self.scrollView.scrollIndicatorInsets = self.oldIndicatorInset
             self.scrollView.contentInset = self.oldContentInset

bk2ch10p522textFieldScrollView/ch23p805textFieldSliding/ViewController.swift

@@ -3,7 +3,7 @@ import UIKit
 
 class ViewController: UIViewController, UITextFieldDelegate {
     @IBOutlet var textFields : [UITextField]!
-    var fr: UIResponder!
+    var currentField: UITextField!
     var accessoryView : UIView!
 
     override func viewDidLoad() {
@@ -16,19 +16,19 @@ class ViewController: UIViewController, UITextFieldDelegate {
     }
 
     func textFieldDidBeginEditing(_ tf: UITextField) {
-        self.fr = tf // keep track of first responder
+        self.currentField = tf // keep track of first responder
         tf.inputAccessoryView = self.accessoryView
         tf.keyboardAppearance = .dark
     }
 
     func textFieldShouldReturn(_ tf: UITextField) -> Bool {
-        self.fr = nil
+        self.currentField = nil
         tf.resignFirstResponder()
         return true
     }
 
     @objc func doNextButton(_ sender: Any) {
-        var ix = self.textFields.index(of:self.fr as! UITextField)!
+        var ix = self.textFields.index(of:self.currentField)!
         ix = (ix + 1) % self.textFields.count
         let v = self.textFields[ix]
         v.becomeFirstResponder()

bk2ch10p524keyboardAccessory/ch21p808keyboardAccessory/ViewController.swift

@@ -50,13 +50,20 @@ class MyDoneButtonViewController : UIInputViewController {
             b.leadingAnchor.constraint(equalTo: iv.leadingAnchor),
             b.trailingAnchor.constraint(equalTo: iv.trailingAnchor),
         ])
-
-        
     }
 
     @objc func doDone() {
         self.delegate?.view?.endEditing(false)
     }
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        print("did2")
+    }
+    
+    override func traitCollectionDidChange(_ prev: UITraitCollection?) {
+        super.traitCollectionDidChange(prev)
+        print("trait2")
+    }
 
 
 }
@@ -79,6 +86,17 @@ class MyPickerViewController : UIInputViewController {
             p.trailingAnchor.constraint(equalTo: iv.trailingAnchor),
         ])
     }
+    
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        print("did")
+    }
+    
+    override func traitCollectionDidChange(_ prev: UITraitCollection?) {
+        super.traitCollectionDidChange(prev)
+        print("trait")
+    }
+
 }
 
 extension MyPickerViewController : UIPickerViewDelegate, UIPickerViewDataSource {
@@ -129,6 +147,7 @@ class ViewController: UIViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
         self.tf.inputView = self.pvc.inputView
+        // print(self.pvc.view === self.pvc.inputView) // yep
         (self.tf as! MyTextField).inputAccessoryViewController = mdbvc
         self.mdbvc.delegate = self // for dismissal
     }

bk2ch10p525InputViewTest/InputViewTest/ViewController.swift

@@ -16,6 +16,7 @@ class MyTextField: UITextField {
             nil, action:#selector(Dummy.dummy), for:.editingDidEndOnExit)
     }
 
+    
     let list : [String:String] = {
         let path = Bundle.main.url(forResource:"abbreviations", withExtension:"txt")!
         let s = try! String(contentsOf:path)
@@ -33,28 +34,29 @@ class MyTextField: UITextField {
 
 
     override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
-        if action == #selector(expand),
-            let r = self.selectedTextRange,
-            let s = self.text(in:r) {
-            return s.count == 2 && self.state(for:s) != nil
+        if action == #selector(expand) {
+            if let r = self.selectedTextRange, let s = self.text(in:r) {
+                return (s.count == 2 && self.state(for:s) != nil)
+            }
         }
         return super.canPerformAction(action, withSender:sender)
     }
 
     @objc func expand(_ sender: Any?) {
-        if let r = self.selectedTextRange, let s = self.text(in:r),
-            let ss = self.state(for:s) {
-            self.replace(r, withText:ss)
+        if let r = self.selectedTextRange, let s = self.text(in:r) {
+            if let ss = self.state(for:s) {
+                self.replace(r, withText:ss)
+            }
         }
     }
 
     override func copy(_ sender:Any?) {
         super.copy(sender)
         let pb = UIPasteboard.general
-        if let s = pb.string {
+        if var s = pb.string {
             // ... alter s here ...
-            let ss = s + "surprise!"
-            pb.string = ss
+            // s = s + "surprise!"
+            pb.string = s
         }
     }
 }

bk2ch10p526textFieldDelegate/ch23p810textFieldDelegate/MyTextField.swift

@@ -6,6 +6,21 @@ class ViewController: UIViewController, UITextFieldDelegate {
 
     @IBOutlet var tf : UITextField!
 
+    // how to make keyboard initially appear in Russian if enabled
+    override var textInputMode: UITextInputMode? {
+        print("get")
+        // return super.textInputMode
+        
+        for tim in UITextInputMode.activeInputModes {
+            if tim.primaryLanguage == "ru-RU" {
+                return tim
+            }
+        }
+        print("super", super.textInputMode?.primaryLanguage as Any)
+        return super.textInputMode
+    }
+
+    
     override func viewDidLoad() {
         super.viewDidLoad()
 
@@ -17,29 +32,44 @@ class ViewController: UIViewController, UITextFieldDelegate {
 
     }
 
+    func beRed(_ textField : UITextField) {
+        // user's text is always red, underlined
+        if var md = textField.typingAttributes {
+            let d : [String:Any] = [
+                NSAttributedStringKey.foregroundColor.rawValue:
+                    UIColor.red,
+                NSAttributedStringKey.underlineStyle.rawValue: NSUnderlineStyle.styleSingle.rawValue
+            ]
+            md.merge(d) {_,new in new}
+            textField.typingAttributes = md
+        }
+    }
+    
+    func textFieldDidBeginEditing(_ textField: UITextField) {
+        print(textField.textInputMode?.primaryLanguage as Any) // wrong
+
+        self.beRed(textField)
+    }
+    
     func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
-        print("here '\(string)'")
+        // print("here '\(string)'")
 
         if string == "\n" {
             return true // otherwise, our automatic keyboard dismissal trick won't work
         }
 
-        // force user to type in red, underlined, lowercase only
-        
+        // backspace
+        if string.isEmpty {
+            return true
+        }
+        // user can enter lowercase only
         let lc = string.lowercased()
-        textField.text = (textField.text! as NSString)
-            .replacingCharacters(in:range, with:lc)
-        
-        // not very satisfactory but it does show the result
+        textField.insertText(lc) // from UIKeyInput protocol
+
+        self.beRed(textField)
 
-        let md = (textField.typingAttributes! as NSDictionary).mutableCopy() as! NSMutableDictionary
-        let d : [NSAttributedStringKey:Any] = [
-            .foregroundColor:
-                UIColor.red,
-            .underlineStyle: NSUnderlineStyle.styleSingle.rawValue
-        ]
-        md.addEntries(from:d)
-        textField.typingAttributes = md.copy() as? [String:Any]
+        print(textField.textInputMode?.primaryLanguage as Any) // right
+
 
         return false
 

bk2ch10p526textFieldDelegate/ch23p810textFieldDelegate/ViewController.swift

@@ -9,7 +9,12 @@ func lend<T> (closure:(T)->()) -> T where T:NSObject {
 
 class ViewController: UIViewController, UITextViewDelegate {
     @IBOutlet var tv : UITextView!
-    var keyboardShowing = false
+    var scrollView : UIScrollView! {
+        return self.tv
+    }
+    var oldContentInset = UIEdgeInsets.zero
+    var oldIndicatorInset = UIEdgeInsets.zero
+    var oldOffset = CGPoint.zero
 
     override func viewDidLoad() {
         super.viewDidLoad()
@@ -38,48 +43,73 @@ class ViewController: UIViewController, UITextViewDelegate {
 
     }
 
-    override var shouldAutorotate : Bool {
-        return !self.keyboardShowing
-    }
-    
     // as long as you play your part (adjust content offset),
-    // iOS 8 will play its part (scroll cursor to visible)
+    // iOS will play its part (scroll cursor to visible)
     // and we don't have to animate
 
+    // code identical to scroll view example, because a text view _is_ a scroll view
+    
+    enum KeyboardState {
+        case unknown
+        case entering
+        case exiting
+    }
+    
+    func keyboardState(for d:[AnyHashable:Any], in v:UIView?) -> (KeyboardState, CGRect?) {
+        var rold = d[UIKeyboardFrameBeginUserInfoKey] as! CGRect
+        var rnew = d[UIKeyboardFrameEndUserInfoKey] as! CGRect
+        var ks : KeyboardState = .unknown
+        var newRect : CGRect? = nil
+        if let v = v {
+            let co = UIScreen.main.coordinateSpace
+            rold = co.convert(rold, to:v)
+            rnew = co.convert(rnew, to:v)
+            newRect = rnew
+            if !rold.intersects(v.bounds) && rnew.intersects(v.bounds) {
+                ks = .entering
+            }
+            if rold.intersects(v.bounds) && !rnew.intersects(v.bounds) {
+                ks = .exiting
+            }
+        }
+        return (ks, newRect)
+    }
+    
     @objc func keyboardShow(_ n:Notification) {
-        if self.keyboardShowing {
-            return
+        let d = n.userInfo!
+        let (state, rnew) = keyboardState(for:d, in:self.scrollView)
+        if state == .entering {
+            print("really showing")
+            self.oldContentInset = self.scrollView.contentInset
+            self.oldIndicatorInset = self.scrollView.scrollIndicatorInsets
+            self.oldOffset = self.scrollView.contentOffset
         }
-        self.keyboardShowing = true
-
-        
         print("show")
-        
-        let d = n.userInfo!
-        var r = d[UIKeyboardFrameEndUserInfoKey] as! CGRect
-        r = self.tv.convert(r, from:nil)
-        self.tv.contentInset.bottom = r.size.height
-        self.tv.scrollIndicatorInsets.bottom = r.size.height
-        
-        
-
+        // no need to scroll, as the scroll view will do it for us
+        // so all we have to do is adjust the inset
+        if let rnew = rnew {
+            let h = rnew.intersection(self.scrollView.bounds).height
+            self.scrollView.contentInset.bottom = h
+            self.scrollView.scrollIndicatorInsets.bottom = h
+        }
     }
 
     @objc func keyboardHide(_ n:Notification) {
-        if !self.keyboardShowing {
-            return
+        let d = n.userInfo!
+        let (state, _) = keyboardState(for:d, in:self.scrollView)
+        if state == .exiting {
+            print("really hiding")
+            // restore original setup
+            // we _don't_ do this; let the text view position itself
+            // self.scrollView.contentOffset = self.oldOffset
+            self.scrollView.scrollIndicatorInsets = self.oldIndicatorInset
+            self.scrollView.contentInset = self.oldContentInset
         }
-        self.keyboardShowing = false
-
-        print("hide")
-        
-        self.tv.contentInset = .zero
-        self.tv.scrollIndicatorInsets = .zero
-        
-
     }
 
-    func doDone(_ sender: Any) {
+    
+
+    @objc func doDone(_ sender: Any) {
         self.view.endEditing(false)
     }