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[Swift iOS Example] Add example project for using peertalk in a Swift app
`PTChannel` 1. Overloads exposing fewer parameters are now `NS_SWIFT_UNAVAILABLE`. Instead we have a single method that defines the nullability of arguments. 2. Used `NS_ASSUME_NONNULL_BEGIN` and `NS_ASSUME_NONNULL_END` 3. Renamed some methods so argument labels are exposed to swift properly. E.g. `init(with:delegate:)` becomes `init(protocol:delegate:)` 4. Added `_Nullable` where necessary to block callback arguments. `Peertalk iOS Example Swift` This duplicates the ObjC Swift iOS Example. It uses the same wire format as the ObjC examples, so they can talk to each other. If 2 swift apps were talking together then it would be trivial to pass payloads of and Codeable structs (encoded any way you like: JSON, Plist, MessagePack, etc)
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‎Peertalk Example/Peertalk Example-Prefix.pch

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‎Peertalk Example/en.lproj/Credits.rtf

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‎Peertalk Example/en.lproj/InfoPlist.strings

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‎Peertalk Swift Example/AppDelegate.swift

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//
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// AppDelegate.swift
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// Peertalk Swift
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//
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// Created by Jonathan Dann on 04/12/2020.
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//
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import UIKit
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@main
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class AppDelegate: UIResponder, UIApplicationDelegate {
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func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
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// Override point for customization after application launch.
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return true
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}
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// MARK: UISceneSession Lifecycle
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func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
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// Called when a new scene session is being created.
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// Use this method to select a configuration to create the new scene with.
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return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
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}
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func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
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// Called when the user discards a scene session.
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// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
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// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
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}
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}
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‎Peertalk Swift Example/Assets.xcassets/AccentColor.colorset/Contents.json

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{
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"colors" : [
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{
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"idiom" : "universal"
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}
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],
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"info" : {
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"author" : "xcode",
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"version" : 1
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}
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}

‎Peertalk Swift Example/Assets.xcassets/AppIcon.appiconset/Contents.json

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

‎Peertalk Swift Example/Assets.xcassets/Contents.json

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{
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"info" : {
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"author" : "xcode",
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"version" : 1
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}
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}

‎Peertalk Swift Example/Base.lproj/LaunchScreen.storyboard

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<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">
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<dependencies>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
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<capability name="Safe area layout guides" minToolsVersion="9.0"/>
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<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
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</dependencies>
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<scenes>
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<!--View Controller-->
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<scene sceneID="EHf-IW-A2E">
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<objects>
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<viewController id="01J-lp-oVM" sceneMemberID="viewController">
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<view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
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<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
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<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
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<color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
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<viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
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</view>
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</viewController>
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<placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
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</objects>
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<point key="canvasLocation" x="53" y="375"/>
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</scene>
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</scenes>
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</document>

‎Peertalk Swift Example/Base.lproj/Main.storyboard

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<?xml version="1.0" encoding="UTF-8"?>
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<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="17700" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
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<device id="retina5_5" orientation="portrait" appearance="light"/>
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<dependencies>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="17703"/>
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<capability name="Safe area layout guides" minToolsVersion="9.0"/>
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<capability name="System colors in document resources" minToolsVersion="11.0"/>
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<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
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</dependencies>
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<scenes>
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<!--View Controller-->
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<scene sceneID="tne-QT-ifu">
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<objects>
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<viewController id="BYZ-38-t0r" customClass="ViewController" customModule="Peertalk_Swift" customModuleProvider="target" sceneMemberID="viewController">
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<view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
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<rect key="frame" x="0.0" y="0.0" width="414" height="736"/>
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<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
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<subviews>
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<stackView opaque="NO" contentMode="scaleToFill" axis="vertical" translatesAutoresizingMaskIntoConstraints="NO" id="7On-uZ-aZ1">
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<rect key="frame" x="0.0" y="0.0" width="414" height="736"/>
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<subviews>
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<textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" textAlignment="natural" translatesAutoresizingMaskIntoConstraints="NO" id="VNx-un-2iu">
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<rect key="frame" x="0.0" y="0.0" width="414" height="702"/>
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<color key="backgroundColor" systemColor="systemBackgroundColor"/>
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<color key="textColor" systemColor="labelColor"/>
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<fontDescription key="fontDescription" type="system" pointSize="14"/>
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<textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
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</textView>
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<textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="w0H-Uz-LnS">
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<rect key="frame" x="0.0" y="702" width="414" height="34"/>
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<fontDescription key="fontDescription" type="system" pointSize="14"/>
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<textInputTraits key="textInputTraits"/>
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<connections>
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<outlet property="delegate" destination="BYZ-38-t0r" id="q8g-10-DAx"/>
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</connections>
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</textField>
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</subviews>
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</stackView>
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</subviews>
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<viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
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<color key="backgroundColor" systemColor="systemBackgroundColor"/>
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<constraints>
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<constraint firstItem="7On-uZ-aZ1" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" id="C3A-52-0VG"/>
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<constraint firstItem="7On-uZ-aZ1" firstAttribute="trailing" secondItem="6Tk-OE-BBY" secondAttribute="trailing" id="DL6-In-VJX"/>
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<constraint firstItem="7On-uZ-aZ1" firstAttribute="bottom" secondItem="6Tk-OE-BBY" secondAttribute="bottom" id="Uz6-RV-J09"/>
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<constraint firstItem="7On-uZ-aZ1" firstAttribute="top" secondItem="6Tk-OE-BBY" secondAttribute="top" id="hqE-Lf-IVf"/>
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</constraints>
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</view>
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<connections>
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<outlet property="bottomConstraint" destination="Uz6-RV-J09" id="5XP-UF-ulk"/>
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<outlet property="stackView" destination="7On-uZ-aZ1" id="xYV-pe-Rwh"/>
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<outlet property="textField" destination="w0H-Uz-LnS" id="gPz-bO-79O"/>
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<outlet property="textView" destination="VNx-un-2iu" id="Eyq-0U-0ku"/>
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</connections>
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</viewController>
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<placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
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</objects>
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<point key="canvasLocation" x="139" y="121"/>
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</scene>
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</scenes>
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<resources>
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<systemColor name="labelColor">
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<color white="0.0" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
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</systemColor>
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<systemColor name="systemBackgroundColor">
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<color white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
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</systemColor>
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</resources>
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</document>

‎Peertalk Swift Example/Info.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>CFBundleDevelopmentRegion</key>
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<string>$(DEVELOPMENT_LANGUAGE)</string>
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<key>CFBundleExecutable</key>
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<string>$(EXECUTABLE_NAME)</string>
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<key>CFBundleIdentifier</key>
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<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
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<key>CFBundleInfoDictionaryVersion</key>
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<string>6.0</string>
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<key>CFBundleName</key>
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<string>$(PRODUCT_NAME)</string>
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<key>CFBundlePackageType</key>
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<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
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<key>CFBundleShortVersionString</key>
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<string>1.0</string>
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<key>CFBundleVersion</key>
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<string>1</string>
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<key>LSRequiresIPhoneOS</key>
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<true/>
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<key>UIApplicationSceneManifest</key>
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<dict>
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<key>UIApplicationSupportsMultipleScenes</key>
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<false/>
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<key>UISceneConfigurations</key>
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<dict>
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<key>UIWindowSceneSessionRoleApplication</key>
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<array>
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<dict>
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<key>UISceneConfigurationName</key>
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<string>Default Configuration</string>
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<key>UISceneDelegateClassName</key>
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<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
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<key>UISceneStoryboardFile</key>
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<string>Main</string>
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</dict>
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</array>
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</dict>
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</dict>
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<key>UIApplicationSupportsIndirectInputEvents</key>
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<true/>
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<key>UILaunchStoryboardName</key>
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<string>LaunchScreen</string>
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<key>UIMainStoryboardFile</key>
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<string>Main</string>
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<key>UIRequiredDeviceCapabilities</key>
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<array>
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<string>armv7</string>
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</array>
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<key>UISupportedInterfaceOrientations</key>
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<array>
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<string>UIInterfaceOrientationPortrait</string>
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<string>UIInterfaceOrientationLandscapeLeft</string>
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<string>UIInterfaceOrientationLandscapeRight</string>
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</array>
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<key>UISupportedInterfaceOrientations~ipad</key>
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<array>
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<string>UIInterfaceOrientationPortrait</string>
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<string>UIInterfaceOrientationPortraitUpsideDown</string>
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<string>UIInterfaceOrientationLandscapeLeft</string>
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<string>UIInterfaceOrientationLandscapeRight</string>
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</array>
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</dict>
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</plist>

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