Add Demo app

Demo/.gitignore

@@ -0,0 +1,114 @@
+# Created by https://www.toptal.com/developers/gitignore/api/swift,xcode,swiftpackagemanager,cocoapods
+# Edit at https://www.toptal.com/developers/gitignore?templates=swift,xcode,swiftpackagemanager,cocoapods
+
+### CocoaPods ###
+## CocoaPods GitIgnore Template
+
+# CocoaPods - Only use to conserve bandwidth / Save time on Pushing
+#           - Also handy if you have a large number of dependant pods
+#           - AS PER https://guides.cocoapods.org/using/using-cocoapods.html NEVER IGNORE THE LOCK FILE
+Pods/
+
+### Swift ###
+# Xcode
+#
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
+
+## User settings
+xcuserdata/
+
+## compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9)
+*.xcscmblueprint
+*.xccheckout
+
+## compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4)
+build/
+DerivedData/
+*.moved-aside
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+
+## Obj-C/Swift specific
+*.hmap
+
+## App packaging
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+## Playgrounds
+timeline.xctimeline
+playground.xcworkspace
+
+# Swift Package Manager
+# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
+# Packages/
+# Package.pins
+# Package.resolved
+# *.xcodeproj
+# Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata
+# hence it is not needed unless you have added a package configuration file to your project
+# .swiftpm
+
+.build/
+
+# CocoaPods
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+# Pods/
+# Add this line if you want to avoid checking in source code from the Xcode workspace
+# *.xcworkspace
+
+# Carthage
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build/
+
+# Accio dependency management
+Dependencies/
+.accio/
+
+# fastlane
+# It is recommended to not store the screenshots in the git repo.
+# Instead, use fastlane to re-generate the screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://docs.fastlane.tools/best-practices/source-control/#source-control
+
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots/**/*.png
+fastlane/test_output
+
+# Code Injection
+# After new code Injection tools there's a generated folder /iOSInjectionProject
+# https://github.com/johnno1962/injectionforxcode
+
+iOSInjectionProject/
+
+### SwiftPackageManager ###
+Packages
+xcuserdata
+*.xcodeproj
+
+
+### Xcode ###
+
+## Xcode 8 and earlier
+
+### Xcode Patch ###
+*.xcodeproj/*
+!*.xcodeproj/project.pbxproj
+!*.xcodeproj/xcshareddata/
+!*.xcworkspace/contents.xcworkspacedata
+/*.gcno
+**/xcshareddata/WorkspaceSettings.xcsettings
+
+# End of https://www.toptal.com/developers/gitignore/api/swift,xcode,swiftpackagemanager,cocoapods

Demo/UIHangDetectorDemo/AppDelegate.swift

@@ -0,0 +1,43 @@
+import UIKit
+import Combine
+import UIHangDetector
+
+@main
+class AppDelegate: UIResponder, UIApplicationDelegate {
+    var window: UIWindow?
+
+    private let hangDetector = UIHangDetector(
+        warningCriteria: 500(.milliseconds),
+        criticalCriteria: 1(.seconds),
+        healthSignalInterval: 500(.milliseconds),
+        healthSignalCheckInterval: 100(.milliseconds)
+    )
+
+    private var cancellableBag: Set<AnyCancellable> = []
+
+    func application(
+        _ application: UIApplication,
+        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+    ) -> Bool {
+        self.window = UIWindow().then {
+            $0.backgroundColor = .black
+            $0.rootViewController = MainViewController()
+        }
+        self.window?.makeKeyAndVisible()
+
+        self.hangDetector.healthStream
+            .sink { print("[\(Date())]\t\($0)") }
+            .store(in: &self.cancellableBag)
+        self.hangDetector.start()
+
+//        _ = Timer.scheduledTimer(withTimeInterval: 10.0, repeats: true) { _ in
+//            self.hangDetector.stop()
+//        }
+//
+//        _ = Timer.scheduledTimer(withTimeInterval: 15.0, repeats: true) { _ in
+//            self.hangDetector.start()
+//        }
+
+        return true
+    }
+}

Demo/UIHangDetectorDemo/Assets.xcassets/AccentColor.colorset/Contents.json

@@ -0,0 +1,11 @@
+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Demo/UIHangDetectorDemo/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "76x76"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "76x76"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "83.5x83.5"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "scale" : "1x",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Demo/UIHangDetectorDemo/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

Demo/UIHangDetectorDemo/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

Demo/UIHangDetectorDemo/Info.plist

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict/>
+</plist>

Demo/UIHangDetectorDemo/MainViewController.swift

@@ -0,0 +1,81 @@
+import UIKit
+import Combine
+import Then
+import SnapKit
+import UIHangDetector
+
+class MainViewController: UIViewController {
+    private let nonBlockingFreezeButton: UIButton = UIButton(type: .system).then {
+        $0.setTitle("Run Non-Blocking", for: .normal)
+        $0.setTitle("Stopped", for: .disabled)
+        $0.sizeToFit()
+    }
+
+    private let blockingFreezeButton: UIButton = UIButton(type: .system).then {
+        $0.setTitle("Run Blocking", for: .normal)
+        $0.setTitle("Stopped", for: .disabled)
+        $0.sizeToFit()
+    }
+
+    private let timerLabel: UILabel = UILabel().then {
+        $0.textColor = .white
+        $0.textAlignment = .center
+    }
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        self.view.backgroundColor = .white
+
+        self.nonBlockingFreezeButton.addTarget(self, action: #selector(self.nonBlockingButtonDidTap), for: .touchUpInside)
+        self.blockingFreezeButton.addTarget(self, action: #selector(self.blockingButtonDidTap), for: .touchUpInside)
+
+        let stack = UIStackView(arrangedSubviews: [
+            self.nonBlockingFreezeButton,
+            self.blockingFreezeButton,
+            self.timerLabel,
+        ])
+        stack.axis = .vertical
+        self.view.addSubview(stack)
+        stack.snp.makeConstraints {
+            $0.center.equalToSuperview()
+        }
+
+        self.timerDidFire(
+            Timer.scheduledTimer(withTimeInterval: 1.0, repeats: true, block: self.timerDidFire)
+        )
+    }
+
+    @objc
+    private func nonBlockingButtonDidTap(_ sender: UIButton) {
+        print("[\(Date())]\tButtonClicked")
+        Task {
+            sender.isEnabled = false
+            try await Task.sleep(forDuration: 5(.seconds))
+            sender.isEnabled = true
+        }
+    }
+
+    @objc
+    private func blockingButtonDidTap(_ sender: UIButton) {
+        print("[\(Date())]\tButtonClicked")
+        sender.isEnabled = false
+        Thread.sleep(forDuration: 5(.seconds))
+        sender.isEnabled = true
+    }
+
+    private func timerDidFire(_ timer: Timer) {
+        let dateFormatter = DateFormatter().then {
+            $0.dateFormat = "hh:mm:ss"
+            $0.timeZone = TimeZone.current
+        }
+        self.timerLabel.text = dateFormatter.string(from: Date())
+
+        switch (Int(Date().timeIntervalSince1970) % 3) {
+        case 0: self.timerLabel.backgroundColor = UIColor.red
+        case 1: self.timerLabel.backgroundColor = UIColor.green
+        case 2: self.timerLabel.backgroundColor = UIColor.blue
+        default: fatalError()
+        }
+    }
+}