thmodel_ios_model/model/Classes/Public/UpdateViewController.m

//
//  UpdateViewController.m
//  千模
//
//  Created by Drew on 2019/1/4.
//  Copyright © 2019 MUMEI. All rights reserved.
//

#import "UpdateViewController.h"
#import "Masonry.h"

@interface UpdatePresenter : UIPresentationController
@property(nonatomic, strong) UIView *dimmingView;
@end

@implementation UpdatePresenter : UIPresentationController
- (instancetype)initWithPresentedViewController:(UIViewController *)presentedViewController presentingViewController:(UIViewController *)presentingViewController {
    self = [super initWithPresentedViewController:presentedViewController presentingViewController:presentingViewController];
    if (self) {
        // 必须设置 presentedViewController 的 modalPresentationStyle
        // 在自定义动画效果的情况下，苹果强烈建议设置为 UIModalPresentationCustom
        presentedViewController.modalPresentationStyle = UIModalPresentationCustom;
    }
    return self;
}

// 呈现过渡即将开始的时候被调用的
// 可以在此方法创建和设置自定义动画所需的view
- (void)presentationTransitionWillBegin {
    self.containerView.layer.cornerRadius = 14;
    // 背景遮罩
    UIView *dimmingView = [[UIView alloc] initWithFrame:self.containerView.bounds];
    dimmingView.backgroundColor = [UIColor blackColor];
    dimmingView.opaque = NO; //是否透明
    dimmingView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
    [dimmingView addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dimmingViewTapped:)]];
    self.dimmingView = dimmingView;

    [self.containerView addSubview:dimmingView]; // 添加到动画容器View中。

    // 获取presentingViewController 的转换协调器，应该动画期间的一个类？上下文？之类的，负责动画的一个东西
    id <UIViewControllerTransitionCoordinator> transitionCoordinator = self.presentingViewController.transitionCoordinator;

    // 动画期间，背景View的动画方式
    self.dimmingView.alpha = 0.f;
    [transitionCoordinator animateAlongsideTransition:^(id <UIViewControllerTransitionCoordinatorContext> context) {
        self.dimmingView.alpha = 0.4f;
    }                                      completion:NULL];
}

#pragma mark 点击了背景遮罩view

- (void)dimmingViewTapped:(UITapGestureRecognizer *)sender {
}

// 在呈现过渡结束时被调用的，并且该方法提供一个布尔变量来判断过渡效果是否完成
- (void)presentationTransitionDidEnd:(BOOL)completed {
    // 在取消动画的情况下，可能为NO，这种情况下，应该取消视图的引用，防止视图没有释放
    if (!completed) {
        self.dimmingView = nil;
    }
}

// 消失过渡即将开始的时候被调用的
- (void)dismissalTransitionWillBegin {
    id <UIViewControllerTransitionCoordinator> transitionCoordinator = self.presentingViewController.transitionCoordinator;

    [transitionCoordinator animateAlongsideTransition:^(id <UIViewControllerTransitionCoordinatorContext> context) {
        self.dimmingView.alpha = 0.f;
    }                                      completion:NULL];
}

// 消失过渡完成之后调用，此时应该将视图移除，防止强引用
- (void)dismissalTransitionDidEnd:(BOOL)completed {
    if (completed == YES) {
        [self.dimmingView removeFromSuperview];
        self.dimmingView = nil;
    }
}

// 返回目标控制器Viewframe
- (CGRect)frameOfPresentedViewInContainerView {
    CGFloat width = 280;
    CGFloat height = 386.f;
    CGRect containerViewBounds = CGRectMake((self.containerView.bounds.size.width - width) / 2, (self.containerView.bounds.size.height - height) / 2, width, height);
    return containerViewBounds;
}

//  建议就这样重写就行，这个应该是控制器内容大小变化时，就会调用这个方法， 比如适配横竖屏幕时，翻转屏幕时
//  可以使用UIContentContainer的方法来调整任何子视图控制器的大小或位置。
- (void)preferredContentSizeDidChangeForChildContentContainer:(id <UIContentContainer>)container {
    [super preferredContentSizeDidChangeForChildContentContainer:container];
    if (container == self.presentedViewController) [self.containerView setNeedsLayout];
}

- (void)containerViewWillLayoutSubviews {
    [super containerViewWillLayoutSubviews];
    self.dimmingView.frame = self.containerView.bounds;
}
@end

@interface UpdateViewController () <UIViewControllerTransitioningDelegate>

@end

@implementation UpdateViewController
- (instancetype)init {
    if (self = [super init]) {
        self.transitioningDelegate = self;
        self.modalPresentationStyle = UIModalPresentationCustom;
    }
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];
    self.view.layer.cornerRadius = 14;
    self.view.clipsToBounds = NO;

    UIImageView *img = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"img_xinbanben"]];
    [self.view addSubview:img];
    [img mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.equalTo(self.view);
        make.top.equalTo(self.view).offset(-27);
        make.height.mas_equalTo(227);
    }];

    UILabel *newVersion = [[UILabel alloc] init];
    newVersion.text = @"发现新版本";
    newVersion.font = [UIFont systemFontOfSize:19 weight:UIFontWeightMedium];
    newVersion.textColor = [UIColor whiteColor];
    [self.view addSubview:newVersion];
    [newVersion mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view).offset(20);
        make.top.equalTo(self.view).offset(26);
    }];

    UIButton *version = [[UIButton alloc] init];
    version.backgroundColor = [UIColor whiteColor];
    version.layer.cornerRadius = 9;
    [version setTitle:self.version forState:UIControlStateNormal];
    [version setTitleColor:[UIColor colorWithHexString:@"#FF4095"] forState:UIControlStateNormal];
    version.titleLabel.font = [UIFont systemFontOfSize:12 weight:UIFontWeightMedium];
    [self.view addSubview:version];
    [version mas_makeConstraints:^(MASConstraintMaker *make) {
        make.width.mas_equalTo(44);
        make.height.mas_equalTo(18);
        make.left.equalTo(self.view).offset(20);
        make.top.equalTo(self.view).offset(54);
    }];

    UILabel *label = [[UILabel alloc] init];
    label.font = [UIFont systemFontOfSize:14];
    label.textColor = [UIColor colorWithHexString:@"#4D4D4D"];
    label.numberOfLines = 0;
    label.text = self.desc ? self.desc : @"请立即更新";
    [self.view addSubview:label];
    [label mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view).offset(40);
        make.right.equalTo(self.view).offset(-40);
        make.top.equalTo(self.view).offset(175);
    }];

    UIButton *button = [[UIButton alloc] init];
    [button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [button setTitle:@"立即更新" forState:UIControlStateNormal];
    button.titleLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
    button.layer.backgroundColor = [UIColor colorWithRed:1.0 green:64 / 255.f blue:149 / 255.f alpha:1.0].CGColor;
    button.layer.cornerRadius = 22;
    button.layer.shadowColor = [UIColor colorWithRed:1.0 green:64 / 255.f blue:149 / 255.f alpha:0.36].CGColor;
    button.layer.shadowOffset = CGSizeMake(0, 8);
    button.layer.shadowOpacity = 1;
    button.layer.shadowRadius = 10;
    [self.view addSubview:button];
    [button mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view).offset(20);
        make.right.equalTo(self.view).offset(-20);
        make.bottom.equalTo(self.view.mas_bottom).offset(-25);
        make.height.mas_equalTo(44);
    }];
    [button addTarget:self action:@selector(update) forControlEvents:UIControlEventTouchUpInside];
}

- (void)update {
    NSURL *url = [NSURL URLWithString:@"itms-apps://itunes.apple.com/app/id1434011196?mt=8"];
    if (@available(iOS 10.0, *)) {
        [[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil];
    } else {
        [[UIApplication sharedApplication] openURL:url];
    }
}


- (UIPresentationController *)presentationControllerForPresentedViewController:(UIViewController *)presented presentingViewController:(UIViewController *)presenting sourceViewController:(UIViewController *)source {
    return [[UpdatePresenter alloc] initWithPresentedViewController:presented presentingViewController:self];
}

@end