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Chapter 12
Chapter 12
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‎12-TouchEvents/TouchEvents.xcodeproj/project.pbxproj

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‎12-TouchEvents/TouchEvents.xcodeproj/project.xcworkspace/contents.xcworkspacedata

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‎12-TouchEvents/TouchEvents.xcodeproj/project.xcworkspace/xcuserdata/panacloud.xcuserdatad/UserInterfaceState.xcuserstate

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‎12-TouchEvents/TouchEvents.xcodeproj/xcuserdata/panacloud.xcuserdatad/xcschemes/TouchEvents.xcscheme

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<?xml version="1.0" encoding="UTF-8"?>
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<Scheme
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LastUpgradeVersion = "0610"
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version = "1.3">
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<BuildAction
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parallelizeBuildables = "YES"
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buildImplicitDependencies = "YES">
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<BuildActionEntries>
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<BuildActionEntry
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buildForTesting = "YES"
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buildForRunning = "YES"
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buildForProfiling = "YES"
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buildForArchiving = "YES"
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buildForAnalyzing = "YES">
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "2DE8D0021A64860B005C8B35"
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BuildableName = "TouchEvents.app"
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BlueprintName = "TouchEvents"
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ReferencedContainer = "container:TouchEvents.xcodeproj">
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</BuildableReference>
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</BuildActionEntry>
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<BuildActionEntry
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buildForTesting = "YES"
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buildForRunning = "YES"
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buildForProfiling = "NO"
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buildForArchiving = "NO"
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buildForAnalyzing = "YES">
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "2DE8D0171A64860B005C8B35"
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BuildableName = "TouchEventsTests.xctest"
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BlueprintName = "TouchEventsTests"
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ReferencedContainer = "container:TouchEvents.xcodeproj">
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</BuildableReference>
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</BuildActionEntry>
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</BuildActionEntries>
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</BuildAction>
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<TestAction
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selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
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selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
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shouldUseLaunchSchemeArgsEnv = "YES"
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buildConfiguration = "Debug">
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<Testables>
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<TestableReference
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skipped = "NO">
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "2DE8D0171A64860B005C8B35"
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BuildableName = "TouchEventsTests.xctest"
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BlueprintName = "TouchEventsTests"
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ReferencedContainer = "container:TouchEvents.xcodeproj">
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</BuildableReference>
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</TestableReference>
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</Testables>
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<MacroExpansion>
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "2DE8D0021A64860B005C8B35"
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BuildableName = "TouchEvents.app"
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BlueprintName = "TouchEvents"
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ReferencedContainer = "container:TouchEvents.xcodeproj">
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</BuildableReference>
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</MacroExpansion>
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</TestAction>
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<LaunchAction
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selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
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selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
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launchStyle = "0"
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useCustomWorkingDirectory = "NO"
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buildConfiguration = "Debug"
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ignoresPersistentStateOnLaunch = "NO"
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debugDocumentVersioning = "YES"
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allowLocationSimulation = "YES">
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<BuildableProductRunnable>
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "2DE8D0021A64860B005C8B35"
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BuildableName = "TouchEvents.app"
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BlueprintName = "TouchEvents"
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ReferencedContainer = "container:TouchEvents.xcodeproj">
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</BuildableReference>
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</BuildableProductRunnable>
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<AdditionalOptions>
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</AdditionalOptions>
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</LaunchAction>
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<ProfileAction
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shouldUseLaunchSchemeArgsEnv = "YES"
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savedToolIdentifier = ""
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useCustomWorkingDirectory = "NO"
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buildConfiguration = "Release"
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debugDocumentVersioning = "YES">
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<BuildableProductRunnable>
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<BuildableReference
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BuildableIdentifier = "primary"
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BlueprintIdentifier = "2DE8D0021A64860B005C8B35"
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BuildableName = "TouchEvents.app"
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BlueprintName = "TouchEvents"
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ReferencedContainer = "container:TouchEvents.xcodeproj">
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</BuildableReference>
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</BuildableProductRunnable>
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</ProfileAction>
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<AnalyzeAction
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buildConfiguration = "Debug">
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</AnalyzeAction>
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<ArchiveAction
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buildConfiguration = "Release"
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revealArchiveInOrganizer = "YES">
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</ArchiveAction>
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</Scheme>

‎12-TouchEvents/TouchEvents.xcodeproj/xcuserdata/panacloud.xcuserdatad/xcschemes/xcschememanagement.plist

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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>SchemeUserState</key>
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<dict>
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<key>TouchEvents.xcscheme</key>
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<dict>
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<key>orderHint</key>
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<integer>0</integer>
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</dict>
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</dict>
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<key>SuppressBuildableAutocreation</key>
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<dict>
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<key>2DE8D0021A64860B005C8B35</key>
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<dict>
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<key>primary</key>
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<true/>
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</dict>
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<key>2DE8D0171A64860B005C8B35</key>
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<dict>
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<key>primary</key>
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<true/>
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</dict>
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</dict>
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</dict>
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</plist>

‎12-TouchEvents/TouchEvents/AppDelegate.swift

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//
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// AppDelegate.swift
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// chap12
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//
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// Created by PanaCloud on 7/22/14.
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// Copyright (c) 2014 PanaCloud. All rights reserved.
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//
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import UIKit
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@UIApplicationMain
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class AppDelegate: UIResponder, UIApplicationDelegate {
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var window: UIWindow?
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func application(application: UIApplication!, didFinishLaunchingWithOptions launchOptions: NSDictionary!) -> Bool {
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// Override point for customization after application launch.
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self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
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//Override point for customization after application launch
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var dvc = BNRDrawViewController()
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self.window!.rootViewController = dvc
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self.window!.backgroundColor = UIColor.whiteColor()
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self.window!.makeKeyAndVisible()
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return true
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}
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func applicationWillResignActive(application: UIApplication!) {
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// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
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// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
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}
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func applicationDidEnterBackground(application: UIApplication!) {
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// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
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// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
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}
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func applicationWillEnterForeground(application: UIApplication!) {
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// Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
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}
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func applicationDidBecomeActive(application: UIApplication!) {
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// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
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}
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func applicationWillTerminate(application: UIApplication!) {
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// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
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}
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}
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‎12-TouchEvents/TouchEvents/BNRDrawView.swift

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//
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// BNRDrawView.swift
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// chap12
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//
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// Created by PanaCloud on 7/22/14.
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// Copyright (c) 2014 PanaCloud. All rights reserved.
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//
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import UIKit
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class BNRDrawView: UIView, UIGestureRecognizerDelegate {
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var finishedLines:NSMutableArray = NSMutableArray()
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//var currentLine:BNRLine?
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var linesInProgress: NSMutableDictionary = NSMutableDictionary()
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var selectedLine:BNRLine?
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override init(frame: CGRect) {
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super.init(frame: frame)
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// Initialization code
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//finishedLines = NSMutableArray()
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//linesInProgress = NSMutableDictionary()
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self.backgroundColor = UIColor.grayColor()
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self.multipleTouchEnabled = true
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}
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required init(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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}
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override func canBecomeFirstResponder() -> Bool {
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return true
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}
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func strokeLine(line: BNRLine){
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var bp = UIBezierPath()
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bp.lineWidth = 10
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bp.lineCapStyle = kCGLineCapRound
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bp.moveToPoint(line.begin)
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bp.addLineToPoint(line.end)
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bp.stroke()
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}
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override func drawRect(rect: CGRect) {
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//Draw finished lines in black
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UIColor.blackColor().set()
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for(var line = 0; line < self.finishedLines.count; line++){
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self.strokeLine(self.finishedLines[line] as BNRLine)
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}
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//If there is a line currently beiing drawn, do it in red
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UIColor.redColor().set()
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for key in self.linesInProgress.allKeys as [NSValue] {
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self.strokeLine(self.linesInProgress[key] as BNRLine)
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}
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}
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override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
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var t: AnyObject! = touches.anyObject()
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println("Touch Began")
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//Get location of the touch in views coordinate system
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for t in touches.allObjects {
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var location = t.locationInView(self)
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var line = BNRLine()
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line.begin = location
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line.end = location
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var key = NSValue(nonretainedObject: t)
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self.linesInProgress[key] = line
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}
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self.setNeedsDisplay()
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}
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override func touchesMoved(touches: NSSet, withEvent event: UIEvent) {
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var t: AnyObject! = touches.anyObject()
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println("Touch Moved")
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for t in touches.allObjects {
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var key = NSValue(nonretainedObject: t)
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var line:BNRLine = self.linesInProgress[key] as BNRLine
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line.end = t.locationInView(self)
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}
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self.setNeedsDisplay()
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}
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override func touchesEnded(touches: NSSet!, withEvent event: UIEvent!) {
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var t: AnyObject! = touches.anyObject()
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println("Touch Ended")
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for t in touches.allObjects {
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var key = NSValue(nonretainedObject: t)
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var line:BNRLine = self.linesInProgress[key] as BNRLine
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self.finishedLines.addObject(line)
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self.linesInProgress.removeObjectForKey(key)
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}
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self.setNeedsDisplay()
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}
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override func touchesCancelled(touches: NSSet!, withEvent event: UIEvent!) {
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//Let's put in a log statement to see the order of events
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println("Touch Cancelled")
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var t: AnyObject! = touches.anyObject()
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for t in touches.allObjects {
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var key = NSValue(nonretainedObject: t)
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self.linesInProgress.removeObjectForKey(key)
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}
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self.setNeedsDisplay()
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}
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/*
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// Only override drawRect: if you perform custom drawing.
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// An empty implementation adversely affects performance during animation.
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override func drawRect(rect: CGRect)
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{
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// Drawing code
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}
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*/
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}

‎12-TouchEvents/TouchEvents/BNRDrawViewController.swift

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//
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// BNRDrawViewController.swift
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// chap12
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//
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// Created by PanaCloud on 7/22/14.
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// Copyright (c) 2014 PanaCloud. All rights reserved.
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//
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import UIKit
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class BNRDrawViewController: UIViewController {
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override func viewDidLoad() {
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super.viewDidLoad()
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// Do any additional setup after loading the view.
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}
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override func didReceiveMemoryWarning() {
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super.didReceiveMemoryWarning()
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// Dispose of any resources that can be recreated.
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}
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override func loadView() {
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self.view = BNRDrawView(frame: CGRectZero)
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}
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/*
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// #pragma mark - Navigation
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// In a storyboard-based application, you will often want to do a little preparation before navigation
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override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
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// Get the new view controller using segue.destinationViewController.
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// Pass the selected object to the new view controller.
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}
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*/
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}

‎12-TouchEvents/TouchEvents/BNRLine.swift

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//
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// BNRLine.swift
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// chap12
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//
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// Created by PanaCloud on 7/22/14.
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// Copyright (c) 2014 PanaCloud. All rights reserved.
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//
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import UIKit
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class BNRLine: NSObject {
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var begin = CGPoint()
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var end = CGPoint()
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}

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