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https://github.com/wnagrodzki/AnimationRestoration.git
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Adds sample code to ViewController for presenting AnimationPreservingView functionality
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2 changed files with 154 additions and 14 deletions
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@ -1,14 +1,56 @@
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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="11134" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
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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="12118" systemVersion="16E195" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="arA-pA-QXC">
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<device id="retina4_7" orientation="portrait">
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<adaptation id="fullscreen"/>
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</device>
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<dependencies>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11106"/>
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<deployment identifier="iOS"/>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12086"/>
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<capability name="Constraints to layout margins" minToolsVersion="6.0"/>
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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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<!--Item 2-->
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<scene sceneID="rlK-xl-HtJ">
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<objects>
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<viewController id="vd8-Xz-KZh" sceneMemberID="viewController">
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<layoutGuides>
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<viewControllerLayoutGuide type="top" id="3gh-En-2DO"/>
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<viewControllerLayoutGuide type="bottom" id="vtr-m1-kkG"/>
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</layoutGuides>
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<view key="view" contentMode="scaleToFill" id="Nph-X3-c5G">
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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" white="1" alpha="1" colorSpace="calibratedWhite"/>
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</view>
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<tabBarItem key="tabBarItem" title="Item 2" id="2gp-7W-iBP"/>
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</viewController>
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<placeholder placeholderIdentifier="IBFirstResponder" id="V0W-y1-zWe" userLabel="First Responder" sceneMemberID="firstResponder"/>
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</objects>
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<point key="canvasLocation" x="-460" y="239"/>
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</scene>
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<!--Tab Bar Controller-->
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<scene sceneID="7mh-yO-YDw">
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<objects>
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<tabBarController id="arA-pA-QXC" sceneMemberID="viewController">
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<tabBar key="tabBar" contentMode="scaleToFill" id="9fM-gf-zXr">
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<rect key="frame" x="0.0" y="0.0" width="375" height="49"/>
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<autoresizingMask key="autoresizingMask"/>
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<color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
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</tabBar>
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<connections>
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<segue destination="BYZ-38-t0r" kind="relationship" relationship="viewControllers" id="761-mD-1Eh"/>
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<segue destination="vd8-Xz-KZh" kind="relationship" relationship="viewControllers" id="f94-63-a7b"/>
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</connections>
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</tabBarController>
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<placeholder placeholderIdentifier="IBFirstResponder" id="w9z-HX-tbn" userLabel="First Responder" sceneMemberID="firstResponder"/>
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</objects>
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<point key="canvasLocation" x="-1410" y="-107"/>
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</scene>
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<!--Item-->
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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" customModuleProvider="target" sceneMemberID="viewController">
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<viewController id="BYZ-38-t0r" customClass="ViewController" customModule="AnimationRestoration" customModuleProvider="target" sceneMemberID="viewController">
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<layoutGuides>
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<viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
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<viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
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@ -16,11 +58,81 @@
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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="375" height="667"/>
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<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
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<subviews>
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<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="IDh-F8-2CN" customClass="AnimationPreservingView" customModule="AnimationRestoration" customModuleProvider="target">
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<rect key="frame" x="16" y="20" width="343" height="281"/>
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<subviews>
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<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="With animation restoration" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="yZE-y0-xgd">
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<rect key="frame" x="70" y="8" width="202" height="21"/>
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<fontDescription key="fontDescription" type="system" pointSize="17"/>
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<nil key="textColor"/>
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<nil key="highlightedColor"/>
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</label>
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<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="x7R-Cc-8WO">
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<rect key="frame" x="111" y="80" width="120" height="120"/>
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<color key="backgroundColor" red="0.40000000600000002" green="0.40000000600000002" blue="1" alpha="1" colorSpace="calibratedRGB"/>
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<constraints>
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<constraint firstAttribute="height" constant="120" id="BCE-Mb-SLS"/>
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<constraint firstAttribute="width" constant="120" id="yZz-Mc-mMy"/>
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</constraints>
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</view>
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</subviews>
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<color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
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<constraints>
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<constraint firstItem="x7R-Cc-8WO" firstAttribute="centerX" secondItem="IDh-F8-2CN" secondAttribute="centerX" id="2oo-Pw-r7H"/>
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<constraint firstItem="x7R-Cc-8WO" firstAttribute="centerY" secondItem="IDh-F8-2CN" secondAttribute="centerY" id="GWB-Nz-Qfq"/>
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<constraint firstItem="yZE-y0-xgd" firstAttribute="top" secondItem="IDh-F8-2CN" secondAttribute="top" constant="8" id="alC-7C-Ri1"/>
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<constraint firstItem="yZE-y0-xgd" firstAttribute="centerX" secondItem="IDh-F8-2CN" secondAttribute="centerX" id="fKf-ih-hQ8"/>
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</constraints>
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</view>
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<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="zqq-dx-TOw">
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<rect key="frame" x="16" y="317" width="343" height="281"/>
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<subviews>
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<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Without animation restoration" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="SgP-Kf-aOw">
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<rect key="frame" x="58" y="8" width="227" height="21"/>
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<fontDescription key="fontDescription" type="system" pointSize="17"/>
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<nil key="textColor"/>
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<nil key="highlightedColor"/>
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</label>
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<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="fNn-UW-FJS">
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<rect key="frame" x="111" y="81" width="120" height="120"/>
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<color key="backgroundColor" red="0.40000000600000002" green="0.40000000600000002" blue="1" alpha="1" colorSpace="calibratedRGB"/>
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<constraints>
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<constraint firstAttribute="width" constant="120" id="Fp8-18-FPh"/>
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<constraint firstAttribute="height" constant="120" id="dPs-7u-QKv"/>
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</constraints>
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</view>
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</subviews>
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<color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
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<constraints>
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<constraint firstItem="SgP-Kf-aOw" firstAttribute="centerX" secondItem="zqq-dx-TOw" secondAttribute="centerX" id="Sme-iJ-oXf"/>
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<constraint firstItem="SgP-Kf-aOw" firstAttribute="top" secondItem="zqq-dx-TOw" secondAttribute="top" constant="8" id="Zrh-fu-rcM"/>
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<constraint firstItem="fNn-UW-FJS" firstAttribute="centerY" secondItem="zqq-dx-TOw" secondAttribute="centerY" id="foF-2S-PRm"/>
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<constraint firstItem="fNn-UW-FJS" firstAttribute="centerX" secondItem="zqq-dx-TOw" secondAttribute="centerX" id="wWp-ia-MpA"/>
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</constraints>
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</view>
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</subviews>
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<color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
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<constraints>
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<constraint firstItem="zqq-dx-TOw" firstAttribute="height" secondItem="IDh-F8-2CN" secondAttribute="height" id="6Yh-o2-2sL"/>
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<constraint firstItem="zqq-dx-TOw" firstAttribute="trailing" secondItem="8bC-Xf-vdC" secondAttribute="trailingMargin" id="CTB-vl-RXQ"/>
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<constraint firstItem="IDh-F8-2CN" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leadingMargin" id="Jda-rb-igY"/>
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<constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="zqq-dx-TOw" secondAttribute="bottom" constant="20" id="P1J-0X-pv5"/>
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<constraint firstItem="IDh-F8-2CN" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" id="VXA-qG-S6v"/>
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<constraint firstItem="zqq-dx-TOw" firstAttribute="top" secondItem="IDh-F8-2CN" secondAttribute="bottom" constant="16" id="Zob-TU-tgb"/>
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<constraint firstItem="zqq-dx-TOw" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leadingMargin" id="hbX-0H-fzx"/>
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<constraint firstItem="IDh-F8-2CN" firstAttribute="trailing" secondItem="8bC-Xf-vdC" secondAttribute="trailingMargin" id="rtB-Fb-72r"/>
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</constraints>
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</view>
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<tabBarItem key="tabBarItem" title="Item" id="bme-Rw-KQg"/>
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<connections>
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<outlet property="viewA" destination="x7R-Cc-8WO" id="PQL-uD-wrP"/>
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<outlet property="viewB" destination="fNn-UW-FJS" id="y0S-nQ-1LN"/>
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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="-460" y="-415"/>
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</scene>
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</scenes>
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</document>
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@ -9,17 +9,45 @@
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import UIKit
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class ViewController: UIViewController {
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@IBOutlet weak var viewA: UIView!
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@IBOutlet weak var viewB: UIView!
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private var didAddAnimations = false
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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, typically from a nib.
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override func viewDidAppear(_ animated: Bool) {
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super.viewDidAppear(animated)
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addAnimationsIfPossible()
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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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private func addAnimationsIfPossible() {
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guard !didAddAnimations else { return }
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let rotationA = CABasicAnimation.makeInfiniteRotation()
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viewA.layer.add(rotationA, forKey: "rotationA")
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let rotationB = CABasicAnimation.makeInfiniteRotation()
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viewB.layer.add(rotationB, forKey: "rotationB")
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didAddAnimations = true
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}
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override func didMove(toParentViewController parent: UIViewController?) {
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super.didMove(toParentViewController: parent)
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}
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}
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extension CABasicAnimation {
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static func makeInfiniteRotation() -> CABasicAnimation {
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let rotation : CABasicAnimation = CABasicAnimation(keyPath: "transform.rotation.z")
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rotation.fromValue = 0
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rotation.toValue = NSNumber(value: Double.pi * 2)
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rotation.duration = 2
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rotation.isCumulative = true
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rotation.repeatCount = Float.greatestFiniteMagnitude
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return rotation
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}
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}
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