thmodel_ios_model/model/Classes/Public/AdViewController.m

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

#import "AdViewController.h"
#import "Masonry.h"
#import "WebViewController.h"

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

@implementation AdPresenter : 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 {
    [self.presentingViewController dismissViewControllerAnimated:YES completion:NULL];
}

// 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 = ScreenWidth - 96;
    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 AdViewController () <UIViewControllerTransitioningDelegate>

@end

@implementation AdViewController
- (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 = YES;
    self.img = [[UIImageView alloc] init];
    self.img.contentMode = UIViewContentModeScaleAspectFill;
    self.img.clipsToBounds = YES;
    [self.view addSubview:self.img];
    [self.img mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.top.right.equalTo(self.view);
        make.height.mas_equalTo(210);
    }];

    self.label = [[UILabel alloc] init];
    self.label.textAlignment = NSTextAlignmentCenter;
    [self.view addSubview:self.label];
    [self.label mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view).offset(25);
        make.right.equalTo(self.view).offset(-25);
        make.top.equalTo(self.img.mas_bottom).offset(16);
        make.height.mas_equalTo(40);
    }];
    self.label.numberOfLines = 0;
    self.label.font = [UIFont systemFontOfSize:14];
    self.label.textColor = [UIColor blackColor];

    UIButton *detailBtn = [[UIButton alloc] init];
    [self.view addSubview:detailBtn];
    [detailBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view).offset(25);
        make.right.equalTo(self.view).offset(-25);
        make.top.equalTo(self.label.mas_bottom).offset(20);
        make.height.mas_equalTo(40);
    }];
    [detailBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [detailBtn setTitle:@"立即查看" forState:UIControlStateNormal];
    detailBtn.titleLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
    detailBtn.layer.backgroundColor = [UIColor colorWithRed:1.f green:64 / 255.f blue:149 / 255.f alpha:1.0].CGColor;
    detailBtn.layer.cornerRadius = 22;
    detailBtn.layer.shadowColor = [UIColor colorWithRed:1.f green:64 / 255.f blue:149 / 255.f alpha:0.36].CGColor;
    detailBtn.layer.shadowOffset = CGSizeMake(0, 8);
    detailBtn.layer.shadowOpacity = 1;
    detailBtn.layer.shadowRadius = 10;
    [detailBtn addTarget:self action:@selector(detail) forControlEvents:UIControlEventTouchUpInside];

    UIButton *cancelBtn = [[UIButton alloc] init];
    [self.view addSubview:cancelBtn];
    [cancelBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self.view);
        make.top.equalTo(detailBtn.mas_bottom).offset(20);
    }];
    cancelBtn.titleLabel.font = [UIFont systemFontOfSize:14];
    [cancelBtn setTitle:@"稍后再说" forState:UIControlStateNormal];
    [cancelBtn setTitleColor:[UIColor colorWithHexString:@"#8F9294"] forState:UIControlStateNormal];
    [cancelBtn addTarget:self action:@selector(dismiss) forControlEvents:UIControlEventTouchUpInside];

    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@%@", imageURl, self.model[@"banner"]]];
    [self.img sd_setImageWithURL:url placeholderImage:[UIImage imageNamed:@"jiazai"]];
    self.label.text = self.model[@"Caption"];
}

- (void)detail {

    [self dismissViewControllerAnimated:YES completion:^{
        // WebViewController *webVC = [[WebViewController alloc] init];
        // webVC.url = self.model[@"url"];
        // webVC.activityPK = self.model[@"PK"];
        // webVC.hidesBottomBarWhenPushed = YES;
        // [self.navigationController pushViewController:webVC animated:YES];
        // [[self findViewController].navigationController pushViewController:webVC animated:YES];
        if (self.callback) {
            self.callback();
        }
    }];
}

- (void)dismiss {
    [self dismissViewControllerAnimated:YES completion:nil];
}

- (UIViewController *)findViewController {
    id target = self;
    while (target) {
        target = ((UIResponder *) target).nextResponder;
        if ([target isKindOfClass:[UIViewController class]]) {
            break;
        }
    }
    return target;
}

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


@end