1 #import "ModelAnimationDelegate.h"
2 #import <UIKit/UIKit.h>
3 #import "MapVC.h"
4 #import "MapLiuLanViewController.h"
5 #import "MapCollectionViewCell.h"
6
7 @interface ModelAnimationDelegate ()<UIViewControllerTransitioningDelegate, UIViewControllerAnimatedTransitioning>
8
9 @property (nonatomic, assign) BOOL isPresentAnimationing;
10
11 @end
12
13 @implementation ModelAnimationDelegate
14
15 // 视图弹出
16 - (void)presentViewAnimation:(id <UIViewControllerContextTransitioning>)transitionContext {
17 // 获取容器view
18 UIView *containerView = [transitionContext containerView];
19 // 获取目标view
20 UIView *destinationView = [transitionContext viewForKey:UITransitionContextToViewKey];
21 destinationView.alpha = 0;
22 // 将目标view添加到容器view
23 [containerView addSubview:destinationView];
24
25 // 获取目标vc
26 MapLiuLanViewController *destinationVC = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
27 NSIndexPath *indexPath = destinationVC.indexPath;
28
29 // 获取来源vc
30 UINavigationController *naVC = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
31 MapVC *sourceVC = (MapVC *)naVC.topViewController;
32 // 获取来源view
33 UICollectionView *collectionView = sourceVC.collectionView;
34 MapCollectionViewCell *selectedCell = (MapCollectionViewCell *)[collectionView cellForItemAtIndexPath:indexPath];
35
36 // 获取动画开始位置大小
37 CGRect startFrame = [collectionView convertRect:selectedCell.frame toView:[UIApplication sharedApplication].keyWindow];
38
39 UIImageView *animationImgView = [[UIImageView alloc] initWithFrame:startFrame];
40 animationImgView.image = selectedCell.imgView.image;
41 animationImgView.contentMode = UIViewContentModeScaleAspectFill;
42 animationImgView.clipsToBounds = YES;
43 [containerView addSubview:animationImgView];
44
45 // 获取动画结束位置大小
46 CGFloat w = WIDTH;
47 CGFloat h = w / animationImgView.image.size.width * animationImgView.image.size.height;
48 CGFloat x = 0;
49 CGFloat y = (HEIGHT - h) / 2.0;
50 CGRect endFrame = CGRectMake(x, y, w, h);
51
52 // 执行过渡动画
53 [UIView animateWithDuration:1.0 animations:^{
54 animationImgView.frame = endFrame;
55 } completion:^(BOOL finished) {
56 [transitionContext completeTransition:YES];
57 [UIView animateWithDuration:0.5 animations:^{
58 destinationView.alpha = 1.0;
59 } completion:^(BOOL finished) {
60 [animationImgView removeFromSuperview];
61 }];
62 }];
63 }
64
65 // 视图消失
66 - (void)dismissViewAnimation:(id <UIViewControllerContextTransitioning>)transitionContext {
67 // 获取容器view
68 UIView *containerView = [transitionContext containerView];
69 // 获取目标view
70 UIView *destinationView = [transitionContext viewForKey:UITransitionContextToViewKey];
71 destinationView.alpha = 0;
72 // 将目标view添加到容器view
73 [containerView addSubview:destinationView];
74
75 // 获取目标vc
76 MapLiuLanViewController *destinationVC = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
77 NSIndexPath *indexPath = destinationVC.indexPath;
78
79 // 获取来源vc
80 UINavigationController *naVC = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
81 MapVC *sourceVC = (MapVC *)naVC.topViewController;
82 // 获取来源view
83 UICollectionView *collectionView = sourceVC.collectionView;
84 MapCollectionViewCell *selectedCell = (MapCollectionViewCell *)[collectionView cellForItemAtIndexPath:indexPath];
85
86 // 获取动画开始位置大小
87 CGRect startFrame = [collectionView convertRect:selectedCell.frame toView:[UIApplication sharedApplication].keyWindow];
88
89 UIImageView *animationImgView = [[UIImageView alloc] initWithFrame:startFrame];
90 animationImgView.image = selectedCell.imgView.image;
91 animationImgView.contentMode = UIViewContentModeScaleAspectFill;
92 animationImgView.clipsToBounds = YES;
93 [containerView addSubview:animationImgView];
94
95 // 获取动画结束位置大小
96 CGFloat w = WIDTH;
97 CGFloat h = w / animationImgView.image.size.width * animationImgView.image.size.height;
98 CGFloat x = 0;
99 CGFloat y = (HEIGHT - h) / 2.0;
100 CGRect endFrame = CGRectMake(x, y, w, h);
101
102 // 执行过渡动画
103 [UIView animateWithDuration:1.0 animations:^{
104 animationImgView.frame = endFrame;
105 } completion:^(BOOL finished) {
106 [transitionContext completeTransition:YES];
107 [UIView animateWithDuration:0.5 animations:^{
108 destinationView.alpha = 1.0;
109 } completion:^(BOOL finished) {
110 [animationImgView removeFromSuperview];
111 }];
112 }];
113 }
114
115 #pragma mark ----- UIViewControllerTransitioningDelegate协议方法 -----
116
117 - (nullable id <UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source {
118 _isPresentAnimationing = YES;
119 return self;
120 }
121
122 - (nullable id <UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed {
123 _isPresentAnimationing = NO;
124 return self;
125 }
126
127
128 #pragma mark ----- UIViewControllerAnimatedTransitioning协议方法 -----
129
130 - (NSTimeInterval)transitionDuration:(nullable id <UIViewControllerContextTransitioning>)transitionContext {
131 return 1.0;
132 }
133
134 - (void)animateTransition:(id <UIViewControllerContextTransitioning>)transitionContext {
135 _isPresentAnimationing ? [self presentViewAnimation:transitionContext] : [self dismissViewAnimation:transitionContext];
136 }
137
138 @end
