├── .DS_Store ├── SwiftTri ├── Images.xcassets │ ├── icons │ │ ├── menuIcon.imageset │ │ │ ├── delta.png │ │ │ ├── delta-1.png │ │ │ └── Contents.json │ │ ├── scanIcon.imageset │ │ │ ├── scan.png │ │ │ ├── scan-1.png │ │ │ └── Contents.json │ │ ├── dudeIcon.imageset │ │ │ ├── dude_icon.png │ │ │ └── Contents.json │ │ └── markerIcon.imageset │ │ │ ├── location_marker.png │ │ │ └── Contents.json │ ├── AppIcon.appiconset │ │ ├── appIconIOS7@2x.png │ │ ├── appIconIPAD@1x.png │ │ ├── appIconIPAD@2x.png │ │ └── Contents.json │ ├── beacons │ │ ├── beaconBlue.imageset │ │ │ ├── beacon_blue.png │ │ │ └── Contents.json │ │ ├── beaconGreen.imageset │ │ │ ├── beacon_teal.png │ │ │ └── Contents.json │ │ └── beaconPurple.imageset │ │ │ ├── beacon_purple.png │ │ │ └── Contents.json │ ├── background │ │ └── sandycay.imageset │ │ │ ├── 03478_sandycay_640x1136@2x.png │ │ │ └── Contents.json │ └── LaunchImage.launchimage │ │ └── Contents.json ├── Info.plist ├── Base.lproj │ └── Main.storyboard ├── AppDelegate.swift ├── Utils.swift ├── GridView.swift ├── EstimoteView.swift ├── BeaconManager.swift └── ViewController.swift ├── SwiftTri.xcodeproj ├── project.xcworkspace │ └── contents.xcworkspacedata └── project.pbxproj ├── LICENSE ├── .gitignore ├── SwiftTriTests ├── Info.plist └── SwiftTriTests.swift └── README.md /.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/a34729t/TriangulatorSwift/HEAD/.DS_Store -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/icons/menuIcon.imageset/delta.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/a34729t/TriangulatorSwift/HEAD/SwiftTri/Images.xcassets/icons/menuIcon.imageset/delta.png -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/icons/scanIcon.imageset/scan.png: 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/SwiftTri/Images.xcassets/background/sandycay.imageset/03478_sandycay_640x1136@2x.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/a34729t/TriangulatorSwift/HEAD/SwiftTri/Images.xcassets/background/sandycay.imageset/03478_sandycay_640x1136@2x.png -------------------------------------------------------------------------------- /SwiftTri.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/icons/dudeIcon.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "scale" : "2x", 10 | "filename" : "dude_icon.png" 11 | } 12 | ], 13 | "info" : { 14 | "version" : 1, 15 | "author" : "xcode" 16 | } 17 | } -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/beacons/beaconBlue.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "scale" : "2x", 10 | "filename" : "beacon_blue.png" 11 | } 12 | ], 13 | "info" : { 14 | "version" : 1, 15 | "author" : "xcode" 16 | } 17 | } -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/beacons/beaconGreen.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "scale" : "2x", 10 | "filename" : "beacon_teal.png" 11 | } 12 | ], 13 | "info" : { 14 | "version" : 1, 15 | "author" : "xcode" 16 | } 17 | } -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/beacons/beaconPurple.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "scale" : "2x", 10 | "filename" : "beacon_purple.png" 11 | } 12 | ], 13 | "info" : { 14 | "version" : 1, 15 | "author" : "xcode" 16 | } 17 | } -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/icons/markerIcon.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "scale" : "2x", 10 | "filename" : "location_marker.png" 11 | } 12 | ], 13 | "info" : { 14 | "version" : 1, 15 | "author" : "xcode" 16 | } 17 | } -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/background/sandycay.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "scale" : "2x", 10 | "filename" : "03478_sandycay_640x1136@2x.png" 11 | } 12 | ], 13 | "info" : { 14 | "version" : 1, 15 | "author" : "xcode" 16 | } 17 | } -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/icons/menuIcon.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x", 6 | "filename" : "delta-1.png" 7 | }, 8 | { 9 | "idiom" : "universal", 10 | "scale" : "2x", 11 | "filename" : "delta.png" 12 | } 13 | ], 14 | "info" : { 15 | "version" : 1, 16 | "author" : "xcode" 17 | } 18 | } -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/icons/scanIcon.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x", 6 | "filename" : "scan.png" 7 | }, 8 | { 9 | "idiom" : "universal", 10 | "scale" : "2x", 11 | "filename" : "scan-1.png" 12 | } 13 | ], 14 | "info" : { 15 | "version" : 1, 16 | "author" : "xcode" 17 | } 18 | } -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | /* 2 | * ---------------------------------------------------------------------------- 3 | * "MODIFIED BEER-WARE LICENSE" (Revision 42.3154): 4 | * wrote this file. As long as you retain this notice you 5 | * can do whatever you want with this stuff. 6 | * 7 | * Also, please don't abuse the shamelessly stolen artwork too much. Give them 8 | * credit at the very least! 9 | * ---------------------------------------------------------------------------- 10 | */ -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | build/ 4 | *.pbxuser 5 | !default.pbxuser 6 | *.mode1v3 7 | !default.mode1v3 8 | *.mode2v3 9 | !default.mode2v3 10 | *.perspectivev3 11 | !default.perspectivev3 12 | xcuserdata 13 | *.xccheckout 14 | *.moved-aside 15 | DerivedData 16 | *.hmap 17 | *.ipa 18 | *.xcuserstate 19 | 20 | # CocoaPods 21 | # 22 | # We recommend against adding the Pods directory to your .gitignore. However 23 | # you should judge for yourself, the pros and cons are mentioned at: 24 | # http://guides.cocoapods.org/using/using-cocoapods.html#should-i-ignore-the-pods-directory-in-source-control 25 | # 26 | # Pods/ 27 | -------------------------------------------------------------------------------- /SwiftTriTests/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | ${EXECUTABLE_NAME} 9 | CFBundleIdentifier 10 | Twitter.${PRODUCT_NAME:rfc1034identifier} 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | ${PRODUCT_NAME} 15 | CFBundlePackageType 16 | BNDL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | 24 | 25 | -------------------------------------------------------------------------------- /SwiftTriTests/SwiftTriTests.swift: -------------------------------------------------------------------------------- 1 | // 2 | // SwiftTriTests.swift 3 | // SwiftTriTests 4 | // 5 | // Created by Nicolas Flacco on 6/18/14. 6 | // Copyright (c) 2014 Nicolas Flacco. All rights reserved. 7 | // 8 | 9 | import XCTest 10 | 11 | class SwiftTriTests: XCTestCase { 12 | 13 | override func setUp() { 14 | super.setUp() 15 | // Put setup code here. This method is called before the invocation of each test method in the class. 16 | } 17 | 18 | override func tearDown() { 19 | // Put teardown code here. This method is called after the invocation of each test method in the class. 20 | super.tearDown() 21 | } 22 | 23 | func testExample() { 24 | // This is an example of a functional test case. 25 | XCTAssert(true, "Pass") 26 | } 27 | 28 | func testPerformanceExample() { 29 | // This is an example of a performance test case. 30 | self.measureBlock() { 31 | // Put the code you want to measure the time of here. 32 | } 33 | } 34 | 35 | } 36 | -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "29x29", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "40x40", 11 | "scale" : "2x" 12 | }, 13 | { 14 | "size" : "60x60", 15 | "idiom" : "iphone", 16 | "filename" : "appIconIOS7@2x.png", 17 | "scale" : "2x" 18 | }, 19 | { 20 | "idiom" : "ipad", 21 | "size" : "29x29", 22 | "scale" : "1x" 23 | }, 24 | { 25 | "idiom" : "ipad", 26 | "size" : "29x29", 27 | "scale" : "2x" 28 | }, 29 | { 30 | "idiom" : "ipad", 31 | "size" : "40x40", 32 | "scale" : "1x" 33 | }, 34 | { 35 | "idiom" : "ipad", 36 | "size" : "40x40", 37 | "scale" : "2x" 38 | }, 39 | { 40 | "size" : "76x76", 41 | "idiom" : "ipad", 42 | "filename" : "appIconIPAD@1x.png", 43 | "scale" : "1x" 44 | }, 45 | { 46 | "size" : "76x76", 47 | "idiom" : "ipad", 48 | "filename" : "appIconIPAD@2x.png", 49 | "scale" : "2x" 50 | } 51 | ], 52 | "info" : { 53 | "version" : 1, 54 | "author" : "xcode" 55 | } 56 | } -------------------------------------------------------------------------------- /SwiftTri/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | ${EXECUTABLE_NAME} 9 | CFBundleIdentifier 10 | Twitter.${PRODUCT_NAME:rfc1034identifier} 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | ${PRODUCT_NAME} 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | LSRequiresIPhoneOS 24 | 25 | UIMainStoryboardFile 26 | Main 27 | NSLocationWhenInUseUsageDescription 28 | The spirit of stack overflow is coders helping coders 29 | NSLocationAlwaysUsageDescription 30 | I have learned more on stack overflow than anything else 31 | UIRequiredDeviceCapabilities 32 | 33 | armv7 34 | 35 | 36 | 37 | -------------------------------------------------------------------------------- /SwiftTri/Images.xcassets/LaunchImage.launchimage/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "orientation" : "portrait", 5 | "idiom" : "iphone", 6 | "extent" : "full-screen", 7 | "minimum-system-version" : "7.0", 8 | "scale" : "2x" 9 | }, 10 | { 11 | "orientation" : "portrait", 12 | "idiom" : "iphone", 13 | "subtype" : "retina4", 14 | "extent" : "full-screen", 15 | "minimum-system-version" : "7.0", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "orientation" : "portrait", 20 | "idiom" : "ipad", 21 | "extent" : "full-screen", 22 | "minimum-system-version" : "7.0", 23 | "scale" : "1x" 24 | }, 25 | { 26 | "orientation" : "landscape", 27 | "idiom" : "ipad", 28 | "extent" : "full-screen", 29 | "minimum-system-version" : "7.0", 30 | "scale" : "1x" 31 | }, 32 | { 33 | "orientation" : "portrait", 34 | "idiom" : "ipad", 35 | "extent" : "full-screen", 36 | "minimum-system-version" : "7.0", 37 | "scale" : "2x" 38 | }, 39 | { 40 | "orientation" : "landscape", 41 | "idiom" : "ipad", 42 | "extent" : "full-screen", 43 | "minimum-system-version" : "7.0", 44 | "scale" : "2x" 45 | } 46 | ], 47 | "info" : { 48 | "version" : 1, 49 | "author" : "xcode" 50 | } 51 | } -------------------------------------------------------------------------------- /SwiftTri/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /SwiftTri/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.swift 3 | // SwiftTri 4 | // 5 | // Created by Nicolas Flacco on 6/18/14. 6 | // Copyright (c) 2014 Nicolas Flacco. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | @UIApplicationMain 12 | class AppDelegate: UIResponder, UIApplicationDelegate { 13 | 14 | var window: UIWindow? 15 | 16 | 17 | func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool { 18 | // Override point for customization after application launch. 19 | return true 20 | } 21 | 22 | func applicationWillResignActive(application: UIApplication) { 23 | // 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. 24 | // 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. 25 | } 26 | 27 | func applicationDidEnterBackground(application: UIApplication) { 28 | // 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. 29 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 30 | } 31 | 32 | func applicationWillEnterForeground(application: UIApplication) { 33 | // 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. 34 | } 35 | 36 | func applicationDidBecomeActive(application: UIApplication) { 37 | // 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. 38 | } 39 | 40 | func applicationWillTerminate(application: UIApplication) { 41 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 42 | } 43 | 44 | 45 | } 46 | 47 | -------------------------------------------------------------------------------- /SwiftTri/Utils.swift: -------------------------------------------------------------------------------- 1 | // 2 | // Utils.swift 3 | // SwiftTri 4 | // 5 | // Created by Nicolas Flacco on 6/20/14. 6 | // Copyright (c) 2014 Nicolas Flacco. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | import UIKit 11 | 12 | // Image constants 13 | let backgroundImage = UIImage(named: "sandycay") 14 | let menuIconImage = UIImage(named: "menuIcon.png") 15 | let scanIconImage = UIImage(named: "scanIcon.png") 16 | let markerImage = UIImage(named: "markerIcon.png") 17 | let beaconBlue = UIImage(named: "beaconBlue.png") 18 | let beaconGreen = UIImage(named: "beaconGreen.png") 19 | let beaconPurple = UIImage(named: "beaconPurple.png") 20 | 21 | // Icons in on/off mode 22 | let menuImgOff = filledImageFrom(image: menuIconImage!, UIColor.blackColor()) 23 | let menuImgOn = filledImageFrom(image: menuIconImage!, UIColor.grayColor()) 24 | let scanImgOff = filledImageFrom(image: scanIconImage!, UIColor.blackColor()) 25 | let scanImgOn = filledImageFrom(image: scanIconImage!, UIColor.grayColor()) 26 | 27 | // From http://stackoverflow.com/questions/845278/overlaying-a-uiimage-with-a-color?lq=1 28 | func filledImageFrom(#image:UIImage, color:UIColor) -> UIImage { 29 | // begin a new image context, to draw our colored image onto with the right scale 30 | UIGraphicsBeginImageContextWithOptions(image.size, false, UIScreen.mainScreen().scale) 31 | 32 | // get a reference to that context we created 33 | let context:CGContextRef = UIGraphicsGetCurrentContext() 34 | 35 | // set the fill color 36 | color.setFill() 37 | 38 | // translate/flip the graphics context (for transforming from CG* coords to UI* coords 39 | CGContextTranslateCTM(context, 0, image.size.height) 40 | CGContextScaleCTM(context, 1.0, -1.0) 41 | 42 | CGContextSetBlendMode(context, kCGBlendModeColorBurn) 43 | let rect:CGRect = CGRectMake(0, 0, image.size.width, image.size.height) 44 | CGContextDrawImage(context, rect, image.CGImage) 45 | 46 | CGContextSetBlendMode(context, kCGBlendModeSourceIn) 47 | CGContextAddRect(context, rect) 48 | CGContextDrawPath(context,kCGPathFill) 49 | 50 | // generate a new UIImage from the graphics context we drew onto 51 | let coloredImg:UIImage = UIGraphicsGetImageFromCurrentImageContext() 52 | UIGraphicsEndImageContext() 53 | 54 | //return the color-burned image 55 | return coloredImg 56 | } -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Triangulator (in Swift) 2 | ===================== 3 | 4 | This app demonstrates how to triangulate distance between iBeacons using CoreLocation. I wrote it for a class I teach as part of Twitter's internal training program. 5 | 6 | Triangulation is not precise because you only have 4 distances you get when ranging an iBeacon (immmediate, near, far and unknown). 7 | 8 | ## Instructions 9 | 10 | Click on the bottom-left triangle icon (it should turn gray) to configure the iBeacons you have to match their real-life location, and click again on the triangle when you are done. 11 | 12 | Next, click on the bottom-right scan icon to start scanning for iBeacons. Once iBeacons are in range, the location marker icon should appear. It's default position is offscreen (at -100, -100). 13 | 14 | ## Testing 15 | 16 | This works on an iPhone 4S running iOS 7.1, with Estimote iBeacons. 17 | 18 | ## Troubleshooting 19 | 20 | If the app doesn't working, you may need to restart your iOS device. I've noticed with any BLE/iBeacon stuff that seems to be the only thing that works. And then it's all fine until the next time! 21 | 22 | ## CoreLocation vs CoreBluetooth 23 | 24 | I am using CoreLocation, which is the only accepted way of interating with iBeacons. CoreBluetooth doesn't give you the background capabilities needed in a distance-aware app. 25 | 26 | CoreLocation gives you iBeacon class (proximity UUID), major and minor (think of them as ways to give an iBeacon a unique ID). CoreBluetooth gives you only a deviceUUID. In fact, the information available to CoreLocation and CoreBluetooth is mutually exclusive- they handle the iBeacon advertisements differently. 27 | 28 | ## Notes 29 | 30 | * The app is hardcoded to use 3 iBeacons. The triangulation code could handle more of them, but the iBeacon setup would need to be modified to support this. 31 | * The triangulation code doesn't handle the 0 < n < 3 signal case. When there are only one or two iBeacons present, we should do something different with the UI. The same goes for 0 iBeacons. 32 | * To make CoreLocation work in iOS 8, you need to add stuff to the plist! See: http://stackoverflow.com/questions/24062509/ios-8-location-services-not-working 33 | 34 | ## Shamelessly Stolen Artwork 35 | 36 | * Estimote iBeacons: From http://www.uidesignbyadam.com/blog/ 37 | * Wallpaper: Interfacelift (Sandy Cay is the current background) 38 | 39 | ## Credits 40 | 41 | * People who's artwork I stole (see above) 42 | * Coworkers at Twitter who made helpful suggestions to my coding style 43 | -------------------------------------------------------------------------------- /SwiftTri/GridView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // GridView.swift 3 | // SwiftTri 4 | // 5 | // Created by Nicolas Flacco on 6/18/14. 6 | // Copyright (c) 2014 Nicolas Flacco. All rights reserved. 7 | // 8 | // More or less converted from Objective-C code. 9 | // From http://stackoverflow.com/questions/18226496/how-to-draw-grid-lines-when-camera-is-open-avcapturemanager 10 | // 11 | 12 | import UIKit 13 | 14 | class GridView: UIView { 15 | let gridWidth: CGFloat = 0.5 16 | var columns: Int 17 | 18 | init(frame: CGRect, columns: Int) { 19 | // Set size of grid 20 | self.columns = columns - 1 21 | super.init(frame: frame) 22 | 23 | // Set view to be transparent 24 | self.opaque = false; 25 | self.backgroundColor = UIColor(white: 0.0, alpha: 0.0); 26 | } 27 | 28 | required init(coder aDecoder: NSCoder) { 29 | fatalError("init(coder:) has not been implemented") 30 | } 31 | 32 | override func drawRect(rect: CGRect) { 33 | let context: CGContextRef = UIGraphicsGetCurrentContext() 34 | CGContextSetLineWidth(context, gridWidth) 35 | CGContextSetStrokeColorWithColor(context, UIColor.blackColor().CGColor) 36 | 37 | // Calculate basic dimensions 38 | let columnWidth: CGFloat = self.frame.size.width / (CGFloat(self.columns) + 1.0) 39 | let rowHeight: CGFloat = columnWidth; 40 | let numberOfRows: Int = Int(self.frame.size.height)/Int(rowHeight); 41 | 42 | // --------------------------- 43 | // Drawing column lines 44 | // --------------------------- 45 | for i in 1...self.columns { 46 | var startPoint: CGPoint = CGPoint(x: columnWidth * CGFloat(i), y: 0.0) 47 | var endPoint: CGPoint = CGPoint(x: startPoint.x, y: self.frame.size.height) 48 | 49 | CGContextMoveToPoint(context, startPoint.x, startPoint.y); 50 | CGContextAddLineToPoint(context, endPoint.x, endPoint.y); 51 | CGContextStrokePath(context); 52 | } 53 | 54 | // --------------------------- 55 | // Drawing row lines 56 | // --------------------------- 57 | for j in 1...numberOfRows { 58 | var startPoint: CGPoint = CGPoint(x: 0.0, y: rowHeight * CGFloat(j)) 59 | var endPoint: CGPoint = CGPoint(x: self.frame.size.width, y: startPoint.y) 60 | 61 | CGContextMoveToPoint(context, startPoint.x, startPoint.y); 62 | CGContextAddLineToPoint(context, endPoint.x, endPoint.y); 63 | CGContextStrokePath(context); 64 | } 65 | } 66 | } 67 | -------------------------------------------------------------------------------- /SwiftTri/EstimoteView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // EstimoteView.swift 3 | // SwiftTri 4 | // 5 | // Created by Nicolas Flacco on 6/18/14. 6 | // Copyright (c) 2014 Nicolas Flacco. All rights reserved. 7 | // 8 | 9 | import CoreLocation 10 | import UIKit 11 | 12 | class EstimoteView: UIView, UIGestureRecognizerDelegate { 13 | 14 | var major, minor: String 15 | var step: CGFloat 16 | var proximity: CLProximity 17 | var coordinateLabel: UILabel 18 | var lastLocation: CGPoint 19 | 20 | init(frame: CGRect, image: UIImage, step: CGFloat, major: String, minor: String) { 21 | // Initialize stuff 22 | self.major = major 23 | self.minor = minor 24 | self.step = step 25 | self.proximity = CLProximity.Unknown 26 | self.coordinateLabel = UILabel(frame: frame) 27 | self.lastLocation = CGPoint() 28 | 29 | super.init(frame: frame) 30 | 31 | // Gesture recognizer 32 | let panRecognizer: UIPanGestureRecognizer = UIPanGestureRecognizer(target: self, action: "detectPan:") 33 | self.gestureRecognizers = [panRecognizer] 34 | 35 | // Estimote image 36 | let imageView: UIImageView = UIImageView(frame: CGRect(origin: CGPoint(x: 0,y: 0), size: self.frame.size)) 37 | imageView.image = image 38 | imageView.contentMode = UIViewContentMode.ScaleAspectFit 39 | self.addSubview(imageView) 40 | 41 | // Label for coordinates 42 | self.coordinateLabel.textAlignment = NSTextAlignment.Center 43 | self.coordinateLabel.center = CGPointMake(self.frame.width/2, self.frame.height/2) 44 | self.setCoordinates(self.center) 45 | self.addSubview(self.coordinateLabel) 46 | } 47 | 48 | required init(coder aDecoder: NSCoder) { 49 | fatalError("init(coder:) has not been implemented") 50 | } 51 | 52 | func setCoordinates(point: CGPoint) { 53 | let x: Int = Int(point.x/self.step) 54 | let y: Int = Int(point.y/self.step) 55 | self.coordinateLabel.text = "(\(x),\(x))" 56 | } 57 | 58 | func detectPan(uiPanGestureRecognizer: UIPanGestureRecognizer) { 59 | // Remember the original position 60 | if(uiPanGestureRecognizer.state == UIGestureRecognizerState.Began) { 61 | self.lastLocation = self.center 62 | } 63 | 64 | // Handle panning and end (snap to grid) 65 | if(uiPanGestureRecognizer.state != UIGestureRecognizerState.Ended) { 66 | // Keep on panning 67 | let translation = uiPanGestureRecognizer.translationInView(self.superview!) 68 | self.center = CGPoint(x: self.lastLocation.x + translation.x, y: self.lastLocation.y + translation.y) 69 | self.setCoordinates(self.center) 70 | } else { 71 | // Snap to grid 72 | var newCenter: CGPoint = self.center 73 | newCenter.x = self.step * CGFloat(floor(Double(newCenter.x / self.step) + 0.5)) 74 | newCenter.y = self.step * CGFloat(floor(Double(newCenter.y / self.step) + 0.5)) 75 | 76 | UIView.animateWithDuration(0.1, 77 | delay: 0.0, 78 | options: UIViewAnimationOptions.CurveEaseInOut, 79 | animations:{ self.center = newCenter}, completion: nil) 80 | 81 | self.center = newCenter 82 | self.setCoordinates(self.center) 83 | 84 | println("endPan (\(newCenter.x),\(newCenter.y))") 85 | } 86 | } 87 | 88 | 89 | } 90 | -------------------------------------------------------------------------------- /SwiftTri/BeaconManager.swift: -------------------------------------------------------------------------------- 1 | // 2 | // BeaconManager.swift 3 | // SwiftTri 4 | // 5 | // Created by Nicolas Flacco on 6/18/14. 6 | // Copyright (c) 2014 Nicolas Flacco. All rights reserved. 7 | // 8 | 9 | import CoreLocation 10 | import UIKit 11 | 12 | // General search criteria for beacons that are broadcasting 13 | let BEACON_SERVICE_NAME = "estimote" 14 | let BEACON_PROXIMITY_UUID = NSUUID(UUIDString: "B9407F30-F5F8-466E-AFF9-25556B57FE6D") 15 | 16 | // Beacons are hardcoded into our app so we can easily filter for them in a noisy environment 17 | let BEACON_PURPLE_MAJOR = "60463" 18 | let BEACON_PURPLE_MINOR = "56367" 19 | let BEACON_GREEN_MAJOR = "544" 20 | let BEACON_GREEN_MINOR = "50962" 21 | let BEACON_BLUE_MAJOR = "23680" 22 | let BEACON_BLUE_MINOR = "7349" 23 | 24 | protocol BeaconManagerDelegate { 25 | func discoveredBeacon(#major: String, minor: String, proximity: CLProximity) // NOTE: #major forces first parameter to be named in function call 26 | } 27 | 28 | class BeaconManager: NSObject, CLLocationManagerDelegate { 29 | var locationManager: CLLocationManager = CLLocationManager() 30 | let registeredBeaconMajor: [String] = [BEACON_BLUE_MAJOR, BEACON_GREEN_MAJOR, BEACON_PURPLE_MAJOR] 31 | let estimoteRegion: CLBeaconRegion = CLBeaconRegion(proximityUUID:BEACON_PROXIMITY_UUID, identifier:"Estimote Region") 32 | var delegate: BeaconManagerDelegate? 33 | 34 | class var sharedInstance:BeaconManager { 35 | return sharedBeaconManager 36 | } 37 | 38 | override init() { 39 | super.init() 40 | locationManager.delegate = self 41 | } 42 | 43 | func start() { 44 | println("BM start"); 45 | locationManager.startMonitoringForRegion(estimoteRegion) 46 | } 47 | 48 | func stop() { 49 | println("BM stop"); 50 | locationManager.stopMonitoringForRegion(estimoteRegion) 51 | } 52 | 53 | // CLLocationManagerDelegate methods 54 | 55 | func locationManager(manager: CLLocationManager!, didStartMonitoringForRegion region: CLRegion!) { 56 | println("BM didStartMonitoringForRegion"); 57 | locationManager.requestStateForRegion(region); // should locationManager be manager? 58 | } 59 | 60 | func locationManager(manager: CLLocationManager!, didDetermineState state: CLRegionState, forRegion region: CLRegion!) { 61 | println("BM didDetermineState \(state)"); 62 | 63 | switch state { 64 | case .Inside: 65 | println("BeaconManager:didDetermineState CLRegionState.Inside"); 66 | locationManager.startRangingBeaconsInRegion(estimoteRegion) // should locationManager be manager? 67 | case .Outside: 68 | println("BeaconManager:didDetermineState CLRegionState.Outside"); 69 | case .Unknown: 70 | println("BeaconManager:didDetermineState CLRegionState.Unknown"); 71 | default: 72 | println("BeaconManager:didDetermineState default"); 73 | } 74 | } 75 | 76 | func locationManager(manager: CLLocationManager!, 77 | didRangeBeacons beacons: [AnyObject]!, 78 | inRegion region: CLBeaconRegion!) { 79 | println("BM didRangeBeacons"); 80 | 81 | for beacon: CLBeacon in beacons as! [CLBeacon] { 82 | // TODO: better way to unwrap optionals? 83 | if let major: String = beacon.major?.stringValue { 84 | if let minor: String = beacon.minor?.stringValue { 85 | let contained: Bool = contains(registeredBeaconMajor, major) 86 | let active: Bool = (UIApplication.sharedApplication().applicationState == UIApplicationState.Active) 87 | if contained && active { 88 | delegate?.discoveredBeacon(major: major, minor: minor, proximity: beacon.proximity) 89 | } 90 | } 91 | } 92 | } 93 | } 94 | } 95 | 96 | 97 | let sharedBeaconManager = BeaconManager() -------------------------------------------------------------------------------- /SwiftTri/ViewController.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.swift 3 | // SwiftTri 4 | // 5 | // Created by Nicolas Flacco on 6/18/14. 6 | // Copyright (c) 2014 Nicolas Flacco. All rights reserved. 7 | // 8 | 9 | // WARNING: Cannot use Images.xcassets with Swift on iOS 7 with XCode Beta 1 (Beta 2 works). As a workaround, 10 | // use absolute path as shown here: http://stackoverflow.com/questions/24069479/swift-playgrounds-with-uiimage 11 | // Naturally, this is a shitshow cause it won't work on an iOS 7 device cause it needs Images.xcassets. 12 | 13 | // TODO: This should really all be autolayout-ed 14 | 15 | import CoreLocation 16 | import UIKit 17 | 18 | class ViewController: UIViewController, BeaconManagerDelegate { 19 | // global config? 20 | let numberColumns: Int = 10 21 | 22 | // general properties 23 | var beaconManager: BeaconManager? 24 | var editMode: Bool = false 25 | var scanMode: Bool = false 26 | 27 | // iBeacons 28 | var blueEstimote, greenEstimote, purpleEstimote: EstimoteView! 29 | var iBeacons: [EstimoteView] = [] 30 | 31 | // UI 32 | var gridView: GridView? 33 | var markerView: UIImageView? 34 | var menuButton, scanButton: UIButton? 35 | 36 | override func viewDidLoad() { 37 | super.viewDidLoad() 38 | // Do any additional setup after loading the view, typically from a nib. 39 | 40 | self.beaconManager = sharedBeaconManager 41 | if !CLLocationManager.locationServicesEnabled() { 42 | // TODO: Alert, once alerts work without crashing app 43 | } 44 | 45 | // Set background image 46 | let backgroundImageView: UIImageView = UIImageView(image: backgroundImage) 47 | self.view.addSubview(backgroundImageView) 48 | 49 | // Draw grid 50 | let gridView: GridView = GridView(frame: self.view.frame, columns: numberColumns) 51 | gridView.alpha = 0.25; 52 | self.view.addSubview(gridView); 53 | self.gridView = gridView // This seems really awkward 54 | 55 | // Create iBeacons 56 | let width: CGFloat = self.view.frame.size.width; 57 | let height: CGFloat = self.view.frame.size.height; 58 | let point0: CGPoint = CGPointMake(width/3, height/1.5); 59 | let point1: CGPoint = CGPointMake(width/6, height/8); 60 | let point2: CGPoint = CGPointMake(width/1.5, height/3); 61 | 62 | self.blueEstimote = self.createBeaconView(image: beaconBlue!, 63 | coordinates:point0, 64 | major:BEACON_BLUE_MAJOR, 65 | minor:BEACON_BLUE_MINOR); 66 | self.greenEstimote = self.createBeaconView(image: beaconGreen!, 67 | coordinates:point1, 68 | major:BEACON_GREEN_MAJOR, 69 | minor:BEACON_GREEN_MINOR); 70 | self.purpleEstimote = self.createBeaconView(image: beaconPurple!, 71 | coordinates:point2, 72 | major:BEACON_BLUE_MAJOR, 73 | minor:BEACON_BLUE_MINOR); 74 | 75 | self.iBeacons = [self.blueEstimote, self.greenEstimote, self.purpleEstimote]; 76 | for estimote: EstimoteView in self.iBeacons { 77 | // NOTE: These settings don't seem to work when set in view initializer 78 | estimote.userInteractionEnabled = false 79 | estimote.coordinateLabel.hidden = true 80 | self.view.addSubview(estimote) 81 | } 82 | 83 | // Make menu button (delta) 84 | let menuButton: UIButton = self.makeMenuButton(image: menuImgOff, left:true) 85 | menuButton.addTarget(self, action: "menuButtonClicked:", forControlEvents: UIControlEvents.TouchUpInside) 86 | self.view.addSubview(menuButton) 87 | self.menuButton = menuButton 88 | 89 | // Make scan button (antenna) 90 | let scanButton: UIButton = self.makeMenuButton(image: scanImgOff, left:false) 91 | scanButton.addTarget(self, action: "scanButtonClicked:", forControlEvents: UIControlEvents.TouchUpInside) 92 | self.view.addSubview(scanButton) 93 | self.scanButton = scanButton 94 | 95 | // Make location marker 96 | let markerView:UIImageView = UIImageView(image: markerImage) 97 | let marker:CGPoint = self.updateLocationMarker() 98 | markerView.frame = CGRect(x: marker.x, y: marker.y - (133/6), width: 150/3, height: 133/3) 99 | self.view.addSubview(markerView) 100 | self.markerView = markerView 101 | 102 | // TODO: Check if bluetooth is on/off 103 | } 104 | 105 | // BeaconManager Delegate Methods 106 | 107 | func discoveredBeacon(#major: String, minor: String, proximity: CLProximity) { 108 | println("VC major:\(major) minor:\(minor) distance:\(proximity)"); 109 | 110 | // Update estimote ranges 111 | for estimote:EstimoteView in self.iBeacons { 112 | if estimote.major == major && estimote.minor == minor { 113 | estimote.proximity = proximity 114 | } 115 | } 116 | 117 | // Update location marker position 118 | let marker:CGPoint = self.updateLocationMarker() 119 | self.markerView!.frame = CGRect(x: marker.x, y: marker.y - (133/6), width: 150/3, height: 133/3) 120 | } 121 | 122 | // Marker Helpers 123 | 124 | func updateLocationMarker() -> CGPoint { 125 | 126 | // Handle unknown case (no iBeacons in range) -> Move marker offscreen 127 | // TODO: Turn this into a map function? 128 | var num:Int = 0 129 | for estimote in self.iBeacons { 130 | if (estimote.proximity == CLProximity.Unknown) { 131 | num++ 132 | } 133 | } 134 | if num == self.iBeacons.count { 135 | return CGPoint(x: -100.0,y: -100.0) // Off screen 136 | } 137 | 138 | // TODO: 139 | // 1 ... N-1 unknown case? 140 | // If marker would be offscreen, find the nearest point within 50 px of border? 141 | 142 | // All known case: 143 | // We want to weight nearer iBeacons more than further ones. We simply create an array of 144 | // x-coordinates, and the nearer an iBeacon is, the more times we add it to the array, so 145 | // that the average value is influenced more! 146 | 147 | // HACK ALERT: I use two arrays as hack cause otherwise I'd do NSValue (for lack of tuple) cause arrays cannot take primitives 148 | // TODO: Use map/zip/etc. 149 | var xTotal:Int = 0; 150 | var yTotal:Int = 0; 151 | var xCount:Int = 0; 152 | var yCount:Int = 0; 153 | for estimote:EstimoteView in self.iBeacons { 154 | for i:Int in 0...CLProximity2Int(estimote.proximity) { 155 | xTotal += Int(estimote.center.x) 156 | yTotal += Int(estimote.center.y) 157 | xCount++ 158 | yCount++ 159 | } 160 | } 161 | 162 | return CGPoint(x: xTotal/xCount, y: yTotal/yCount) 163 | } 164 | 165 | func CLProximity2Int(proximity:CLProximity) -> Int { 166 | switch proximity { 167 | case .Unknown: 168 | return 0; 169 | case .Far: 170 | return 1; 171 | case .Near: 172 | return 5; 173 | case .Immediate: 174 | return 20; 175 | default: 176 | return 0; // Also handles .Unknown case 177 | } 178 | } 179 | 180 | // Button Delegates 181 | 182 | func menuButtonClicked(sender: UIButton!) { 183 | println("menuButtonClicked") 184 | 185 | // Toggle edit mode 186 | self.editMode = !self.editMode 187 | 188 | // Change 1) color of button 2) grid transparency (alpha) 189 | if self.editMode { 190 | self.menuButton!.setImage(menuImgOn, forState: UIControlState.Normal) 191 | self.gridView!.alpha = 0.6 192 | } else { 193 | self.menuButton!.setImage(menuImgOff, forState: UIControlState.Normal) 194 | self.gridView!.alpha = 0.25 195 | } 196 | 197 | // Toggle estimotes draggable or not 198 | for estimote:EstimoteView in self.iBeacons { 199 | estimote.userInteractionEnabled = !estimote.userInteractionEnabled 200 | estimote.coordinateLabel.hidden = !estimote.coordinateLabel.hidden 201 | } 202 | } 203 | 204 | 205 | func scanButtonClicked(sender: UIButton!) { 206 | println("scanButtonClicked") 207 | 208 | // Change 1) color of button 2) enable/disable beacon manager 209 | if self.scanMode { 210 | self.scanButton!.setImage(scanImgOff, forState: UIControlState.Normal) 211 | self.beaconManager!.stop() 212 | self.beaconManager!.delegate = nil 213 | } else { 214 | self.scanButton!.setImage(scanImgOn, forState: UIControlState.Normal) 215 | self.beaconManager!.start() 216 | self.beaconManager!.delegate = self 217 | } 218 | 219 | // Toggle scan mode 220 | self.scanMode = !self.scanMode 221 | } 222 | 223 | // View Helpers 224 | 225 | func createBeaconView(#image: UIImage, coordinates: CGPoint, major: String, minor:String) -> EstimoteView { 226 | let scaleFactor: Double = 3.0 227 | let step: CGFloat = CGFloat(self.view.frame.size.width) / CGFloat(self.numberColumns) 228 | let rect: CGRect = CGRectMake(coordinates.x, coordinates.y, CGFloat(200.0/scaleFactor), CGFloat(340.0/scaleFactor)) 229 | let beaconView: EstimoteView = EstimoteView(frame: rect, image: image, step: step, major: major, minor: minor) 230 | return beaconView 231 | } 232 | 233 | func makeMenuButton(#image: UIImage, left: Bool) -> UIButton { 234 | let menuWidth: CGFloat = 150/3; 235 | let menuHeight: CGFloat = 133/3; 236 | let menuPadding: CGFloat = 10; 237 | 238 | let button: UIButton = UIButton.buttonWithType(UIButtonType.Custom) as! 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