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‎CRPageViewController.podspec‎

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#
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# Be sure to run `pod lib lint CRPageViewController.podspec' to ensure this is a
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# valid spec before submitting.
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#
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# Any lines starting with a # are optional, but their use is encouraged
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# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html
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#
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Pod::Spec.new do |s|
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s.name = 'CRPageViewController'
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s.version = '0.1.0'
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s.summary = 'A short description of CRPageViewController.'
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# This description is used to generate tags and improve search results.
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# * Think: What does it do? Why did you write it? What is the focus?
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# * Try to keep it short, snappy and to the point.
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# * Write the description between the DESC delimiters below.
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# * Finally, don't worry about the indent, CocoaPods strips it!
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s.description = <<-DESC
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TODO: Add long description of the pod here.
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DESC
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s.homepage = 'https://github.com/<GITHUB_USERNAME>/CRPageViewController'
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# s.screenshots = 'www.example.com/screenshots_1', 'www.example.com/screenshots_2'
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s.license = { :type => 'MIT', :file => 'LICENSE' }
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s.author = { 'Sergey' => '[email protected]' }
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s.source = { :git => 'https://github.com/<GITHUB_USERNAME>/CRPageViewController.git', :tag => s.version.to_s }
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# s.social_media_url = 'https://twitter.com/<TWITTER_USERNAME>'
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s.ios.deployment_target = '8.0'
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s.source_files = 'CRPageViewController/Classes/**/*'
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# s.resource_bundles = {
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# 'CRPageViewController' => ['CRPageViewController/Assets/*.png']
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# }
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# s.public_header_files = 'Pod/Classes/**/*.h'
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# s.frameworks = 'UIKit', 'MapKit'
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# s.dependency 'AFNetworking', '~> 2.3'
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end

‎CRPageViewController/Assets/.gitkeep‎

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‎CRPageViewController/Classes/.gitkeep‎

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‎CRPageViewController/Classes/CRPageViewController/CRPageViewController.h‎

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//
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// CRPageViewController.h
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// Pods
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//
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// Created by Sergey Chuchukalo on 5/25/16.
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//
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// Copyright © 2016 Cleveroad Inc. All rights reserved.
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#import <UIKit/UIKit.h>
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@class CRPageViewController;
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@protocol CRPageViewControllerDataSource <NSObject>
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@required
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/**
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* Returns the view controller after the given view controller.
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*
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* @param pageViewController The page view controller
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* @param viewController The view controller that the user navigated away from.
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* @return The view controller after the given view controller, or nil to indicate that there is no next view controller.
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*/
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- (UIViewController *)pageViewController:(CRPageViewController *)pageViewController
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viewControllerAfterViewController:(UIViewController *)viewController;
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/**
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* Returns the view controller before the given view controller.
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* @param pageViewController The page view controller
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* @param viewController The view controller that the user navigated away from.
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* @return The view controller before the given view controller, or nil to indicate that there is no previous view controller.
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*/
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- (UIViewController *)pageViewController:(CRPageViewController *)pageViewController
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viewControllerBeforeViewController:(UIViewController *)viewController;
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@optional
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/**
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* ViewController moving to center PageController
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*
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* @param viewController is ViewController what moving to center PageController
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*/
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- (void)focusedViewController:(UIViewController *)viewController;
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/**
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* ViewController moving from center PageController
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*
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* @param viewController is ViewController what moving from center PageController
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*/
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- (void)unfocusedViewController:(UIViewController *)viewController;
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@end
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/**
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* CRPageViewController is customise PageViewController. CRPageViewController allows implement cards form of UIViewController.
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*/
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@interface CRPageViewController : UIViewController
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/**
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* DataSourse of PageViewController
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*/
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@property (weak, nonatomic) id <CRPageViewControllerDataSource> dataSource;
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/**
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* Starting array of UIViewController in PageViewController
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*/
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@property (strong, nonatomic) NSArray <UIViewController*> *viewControllers;
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/**
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* Size of UIViewController in PageViewController
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*/
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@property (assign, nonatomic) CGSize childVCSize;
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/**
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* Vertical offset of UIViewController in center screen
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*/
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@property (assign, nonatomic) CGFloat OffsetOfHeightCentralVC;
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/**
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* Distance between child UIViewController
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*/
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@property (assign, nonatomic) CGFloat sizeBetweenVC;
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/**
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* Speed of animation change UIViewController on center PageViewController
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*/
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@property (assign, nonatomic) CGFloat animationSpeed;
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/**
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* Type of animation change UIViewController on center PageViewController
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*/
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@property (assign, nonatomic) UIViewAnimationCurve animation;
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/**
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* Count of UIViewController on PageViewController
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*/
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@property (assign, nonatomic) NSInteger countPageInController;
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@end

‎CRPageViewController/Classes/CRPageViewController/CRPageViewController.m‎

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//
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// CRPageViewController.m
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// Pods
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//
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// Created by Sergey Chuchukalo on 5/25/16.
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//
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// Copyright © 2016 Cleveroad Inc. All rights reserved.
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#import "CRPageViewController.h"
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@interface CRPageViewController () <UIGestureRecognizerDelegate>
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- (void)slideToRightWithGestureRecognizer:(UISwipeGestureRecognizer *)gestureRecognizer;
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- (void)slideToLeftWithGestureRecognizer:(UISwipeGestureRecognizer *)gestureRecognizer;
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@property (strong, nonatomic) NSMutableArray <UIViewController*> * internalViewControllers;
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@property (assign, nonatomic) CGFloat spaceHorizontal;
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@property (assign, nonatomic) CGFloat spaceVertical;
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@end
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@implementation CRPageViewController
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#pragma mark - Life circle VC
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- (void)viewDidLoad {
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[super viewDidLoad];
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UISwipeGestureRecognizer *swipeRightOrange = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(slideToRightWithGestureRecognizer:)];
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swipeRightOrange.direction = UISwipeGestureRecognizerDirectionRight;
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[self.view addGestureRecognizer:swipeRightOrange];
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UISwipeGestureRecognizer *swipeLeftOrange = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(slideToLeftWithGestureRecognizer:)];
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swipeLeftOrange.direction = UISwipeGestureRecognizerDirectionLeft;
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[self.view addGestureRecognizer:swipeLeftOrange];
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}
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- (void)viewDidAppear:(BOOL)animated {
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[super viewDidAppear:animated];
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self.spaceHorizontal = (self.view.frame.size.width - self.childVCSize.width) / 2;
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self.spaceVertical = (self.view.frame.size.height - self.childVCSize.height) / 2;
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self.internalViewControllers = [NSMutableArray new];
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for (UIViewController* vc in self.viewControllers) {
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[self pushRightViewController:vc];
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}
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[self changeViewControllersWithNumber:self.countPageInController/2];
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[self performSelector:@selector(focusedCentralView) withObject:nil afterDelay:0.2];
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}
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- (void)focusedCentralView {
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if ([self.dataSource respondsToSelector:@selector(focusedViewController:)]) {
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[self.dataSource focusedViewController:self.internalViewControllers[self.countPageInController/2]];
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}
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}
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- (void)setSizeBetweenVC:(CGFloat)sizeBetweenVC {
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_sizeBetweenVC = sizeBetweenVC;
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[self changeViewControllersWithNumber:self.countPageInController/2];
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}
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- (void)setChildVCSize:(CGSize)childVCSize {
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_childVCSize = childVCSize;
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self.spaceHorizontal = (self.view.frame.size.width - self.childVCSize.width) / 2;
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self.spaceVertical = (self.view.frame.size.height - self.childVCSize.height) / 2;
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[self changeViewControllersWithNumber:self.countPageInController/2];
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}
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- (void)setOffsetOfHeightCentralVC:(CGFloat)OffsetOfHeightCentralVC {
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_OffsetOfHeightCentralVC = OffsetOfHeightCentralVC;
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[self changeViewControllersWithNumber:self.countPageInController/2];
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}
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#pragma mark - Push VC
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- (void)pushRightViewController:(__kindof UIViewController *)viewController {
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viewController.view.frame = CGRectMake(self.view.frame.size.width,
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self.spaceVertical,
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self.childVCSize.width,
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self.childVCSize.height);
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[self createViewController:viewController];
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[self.internalViewControllers addObject:viewController];
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[self changeViewControllersWithNumber:self.countPageInController/2];
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}
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- (void)pushLeftViewController:(__kindof UIViewController *)viewController {
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viewController.view.frame = CGRectMake(0,
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self.spaceVertical,
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self.childVCSize.width,
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self.childVCSize.height);
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[self createViewController:viewController];
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[self.internalViewControllers insertObject:viewController atIndex:0];
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[self changeViewControllersWithNumber:self.countPageInController/2 + 1];
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}
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# pragma mark - gestureRecognizers
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- (void)slideToRightWithGestureRecognizer:(UISwipeGestureRecognizer *)gestureRecognizer{
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if ([self.dataSource respondsToSelector:@selector(pageViewController:viewControllerBeforeViewController:)]) {
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UIViewController *newViewController = [self.dataSource pageViewController:self viewControllerBeforeViewController:self.internalViewControllers.firstObject];
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if (newViewController) {
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[self unfocused:self.countPageInController/2];
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[self pushLeftViewController:newViewController];
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[UIView animateKeyframesWithDuration:self.animationSpeed delay:0 options:self.animation animations:^{
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[self changeViewControllersWithNumber:self.countPageInController/2];
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if ([self.dataSource respondsToSelector:@selector(focusedViewController:)]) {
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[self.dataSource focusedViewController:self.internalViewControllers[self.countPageInController/2]];
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}
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} completion:^(BOOL finished) {
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}];
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[self performSelector:@selector(popRightViewCintroller) withObject:nil afterDelay:self.animationSpeed];
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}
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}
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}
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- (void)slideToLeftWithGestureRecognizer:(UISwipeGestureRecognizer *)gestureRecognizer {
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if ([self.dataSource respondsToSelector:@selector(pageViewController:viewControllerAfterViewController:)]) {
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UIViewController *newViewController = [self.dataSource pageViewController:self viewControllerAfterViewController:self.internalViewControllers.lastObject];
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if (newViewController) {
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[self unfocused:self.countPageInController/2];
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[self pushRightViewController:newViewController];
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[UIView animateKeyframesWithDuration:self.animationSpeed delay:0 options:self.animation animations:^{
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[self changeViewControllersWithNumber:self.countPageInController/2 + 1];
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if ([self.dataSource respondsToSelector:@selector(focusedViewController:)]) {
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[self.dataSource focusedViewController:self.internalViewControllers[self.countPageInController/2 + 1]];
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}
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} completion:^(BOOL finished) {
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}];
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[self performSelector:@selector(popLeftViewCintroller) withObject:nil afterDelay:self.animationSpeed];
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}
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}
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}
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#pragma mark - Helpers
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- (void)popRightViewCintroller {
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if (self.internalViewControllers.count >= 0) {
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[self removeViewController:self.internalViewControllers.lastObject];
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[self.internalViewControllers removeLastObject];
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[self changeViewControllersWithNumber:self.countPageInController/2];
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}
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}
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- (void)popLeftViewCintroller {
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if (self.internalViewControllers.count >= 0) {
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[self removeViewController:self.internalViewControllers.firstObject];
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[self.internalViewControllers removeObjectAtIndex:0];
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[self changeViewControllersWithNumber:self.countPageInController/2];
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}
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}
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- (void)createViewController:(__kindof UIViewController *)viewController {
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[self addChildViewController:viewController];
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[self.view addSubview:viewController.view];
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[viewController didMoveToParentViewController:self];
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}
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- (void)removeViewController:(__kindof UIViewController *)viewController {
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[viewController willMoveToParentViewController:nil];
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[viewController.view removeFromSuperview];
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[viewController removeFromParentViewController];
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}
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- (void)unfocused:(NSInteger)numberOfFocusetView {
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if (self.internalViewControllers.count == self.countPageInController) {
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if ([self.dataSource respondsToSelector:@selector(unfocusedViewController:)]) {
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[self.dataSource unfocusedViewController:self.internalViewControllers[numberOfFocusetView]];
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}
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}
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}
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- (void)changeViewControllersWithNumber:(NSInteger) numberOfFocusetView {
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for (int i = 0; i < self.internalViewControllers.count; i++) {
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CGFloat originXForView = self.spaceHorizontal + (self.childVCSize.width + self.sizeBetweenVC) * (i - numberOfFocusetView);
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if (i == numberOfFocusetView) {
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self.internalViewControllers[i].view.frame = CGRectMake(originXForView, self.spaceVertical + self.OffsetOfHeightCentralVC, self.childVCSize.width, self.childVCSize.height );
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} else {
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self.internalViewControllers[i].view.frame = CGRectMake(originXForView, self.spaceVertical, self.childVCSize.width, self.childVCSize.height);
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}
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}
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}
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@end

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