245 lines
11 KiB
Objective-C
245 lines
11 KiB
Objective-C
//
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// KBVipPay.m
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// keyBoard
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//
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// Created by Mac on 2025/11/14.
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//
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#import "KBVipPay.h"
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#import "KBVipPayHeaderView.h"
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#import "KBVipSubscribeCell.h"
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#import "KBVipReviewListCell.h"
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static NSString * const kKBVipHeaderId = @"kKBVipHeaderId";
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static NSString * const kKBVipSubscribeCellId = @"kKBVipSubscribeCellId";
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static NSString * const kKBVipReviewListCellId = @"kKBVipReviewListCellId";
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@interface KBVipPay () <UICollectionViewDataSource, UICollectionViewDelegateFlowLayout>
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@property (nonatomic, strong) UICollectionView *collectionView; // 主列表（竖向滚动）
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@property (nonatomic, strong) NSArray<NSDictionary *> *plans; // 订阅方案数组
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@property (nonatomic, assign) NSInteger selectedIndex; // 当前选中的方案索引
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@property (nonatomic, strong) UIButton *closeButton; // 当前选中的方案索引
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@property (nonatomic, strong) UIImageView *bgImageView; // 全屏背景图
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// Header 自适应测量
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@property (nonatomic, strong) KBVipPayHeaderView *sizingHeader;
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@property (nonatomic, assign) CGFloat headerHeight;
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@end
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@implementation KBVipPay
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- (void)viewDidLoad {
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[super viewDidLoad];
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// 标题与导航样式
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// self.kb_titleLabel.text = @"VIP";
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// self.kb_navView.backgroundColor = [UIColor clearColor];
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self.view.backgroundColor = [UIColor colorWithHex:0xF6F7FB];
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self.kb_enableCustomNavBar = NO;
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self.bgImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"pay_vipbg_icon"]];
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self.bgImageView.contentMode = UIViewContentModeScaleAspectFill;
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[self.view addSubview:self.bgImageView];
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[self.bgImageView mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.top.right.equalTo(self.view);
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make.height.mas_equalTo(224);
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}];
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// 初始化数据（简单演示）
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self.plans = @[
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@{@"title":@"Monthly Subscription", @"price":@"$4.49", @"strike":@"$4.49"},
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@{@"title":@"Monthly Subscription", @"price":@"$4.49", @"strike":@"$4.49"},
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@{@"title":@"Monthly Subscription", @"price":@"$4.49", @"strike":@"$4.49"},
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];
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self.selectedIndex = 1; // 默认选中第二项
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// 组装主列表
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[self.view addSubview:self.collectionView];
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[self.collectionView mas_makeConstraints:^(MASConstraintMaker *make) {
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make.left.right.bottom.equalTo(self.view);
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make.top.equalTo(self.view).offset(0);
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}];
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[self.view addSubview:self.closeButton];
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[self.closeButton mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.equalTo(self.view).offset(KB_NAV_TOTAL_HEIGHT - 30);
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make.left.equalTo(self.view).offset(15);
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make.width.height.mas_equalTo(36);
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}];
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// 预计算 Header 高度（由内部约束决定）
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self.headerHeight = [self kb_calcHeaderHeightForWidth:KB_SCREEN_WIDTH];
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[self.collectionView reloadData];
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}
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- (void)viewDidAppear:(BOOL)animated {
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[super viewDidAppear:animated];
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// 首次进入，确保订阅项保持选中态（避免首屏仅显示 Header，待滚动出现时没有选中样式）
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NSIndexPath *ip = [NSIndexPath indexPathForItem:self.selectedIndex inSection:1];
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if (!ip) { return; }
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// 系统层面也置为选中
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[self.collectionView selectItemAtIndexPath:ip animated:NO scrollPosition:UICollectionViewScrollPositionNone];
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// 若此时 cell 不可见，willDisplay 再兜底
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KBVipSubscribeCell *cell = (KBVipSubscribeCell *)[self.collectionView cellForItemAtIndexPath:ip];
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if (cell) { [cell applySelected:YES animated:NO]; }
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}
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#pragma mark - Header Height Calc
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- (CGFloat)kb_calcHeaderHeightForWidth:(CGFloat)width {
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if (width <= 0) { width = KB_SCREEN_WIDTH; }
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if (!self.sizingHeader) {
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self.sizingHeader = [[KBVipPayHeaderView alloc] initWithFrame:CGRectMake(0, 0, width, 1)];
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}
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// 更新目标宽度并触发布局
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self.sizingHeader.bounds = CGRectMake(0, 0, width, self.sizingHeader.bounds.size.height);
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[self.sizingHeader setNeedsLayout];
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[self.sizingHeader layoutIfNeeded];
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CGSize size = [self.sizingHeader systemLayoutSizeFittingSize:CGSizeMake(width, UILayoutFittingCompressedSize.height)
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withHorizontalFittingPriority:UILayoutPriorityRequired
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verticalFittingPriority:UILayoutPriorityFittingSizeLevel];
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return MAX(1, ceil(size.height));
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}
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#pragma mark - Action
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- (void)onTapClose{
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[self.navigationController popViewControllerAnimated:true];
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}
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#pragma mark - UICollectionView DataSource
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- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
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// 0：头部；1：订阅选项；2：底部横滑好评
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return 3;
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}
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- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
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if (section == 1) { return self.plans.count; }
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if (section == 2) { return 1; }
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return 0; // 头部仅使用 header
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}
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- (__kindof UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
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if (indexPath.section == 1) {
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KBVipSubscribeCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kKBVipSubscribeCellId forIndexPath:indexPath];
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NSDictionary *plan = self.plans[indexPath.item];
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[cell configTitle:plan[@"title"] price:plan[@"price"] strike:plan[@"strike"]];
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[cell applySelected:(indexPath.item == self.selectedIndex) animated:NO];
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return cell;
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} else {
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KBVipReviewListCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kKBVipReviewListCellId forIndexPath:indexPath];
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return cell;
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}
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}
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- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath {
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if (indexPath.section == 0 && [kind isEqualToString:UICollectionElementKindSectionHeader]) {
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KBVipPayHeaderView *header = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:kKBVipHeaderId forIndexPath:indexPath];
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return header;
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}
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return [UICollectionReusableView new];
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}
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#pragma mark - UICollectionView Delegate
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- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
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if (indexPath.section != 1) { return; }
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if (self.selectedIndex == indexPath.item) { return; }
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NSInteger old = self.selectedIndex;
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self.selectedIndex = indexPath.item;
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KBVipSubscribeCell *newCell = (KBVipSubscribeCell *)[collectionView cellForItemAtIndexPath:indexPath];
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[newCell applySelected:YES animated:YES];
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if (old >= 0 && old < self.plans.count) {
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NSIndexPath *oldIP = [NSIndexPath indexPathForItem:old inSection:1];
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KBVipSubscribeCell *oldCell = (KBVipSubscribeCell *)[collectionView cellForItemAtIndexPath:oldIP];
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[oldCell applySelected:NO animated:YES];
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}
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}
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- (void)collectionView:(UICollectionView *)collectionView willDisplayCell:(UICollectionViewCell *)cell forItemAtIndexPath:(NSIndexPath *)indexPath {
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// 兜底：当订阅项第一次出现在屏幕上，强制同步选中样式
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if (indexPath.section == 1 && [cell isKindOfClass:KBVipSubscribeCell.class]) {
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BOOL sel = (indexPath.item == self.selectedIndex);
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KBVipSubscribeCell *c = (KBVipSubscribeCell *)cell;
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if (sel) {
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[collectionView selectItemAtIndexPath:indexPath animated:NO scrollPosition:UICollectionViewScrollPositionNone];
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}
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[c applySelected:sel animated:NO];
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}
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}
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#pragma mark - FlowLayout
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- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
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CGFloat w = KB_SCREEN_WIDTH - 32;
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if (indexPath.section == 1) {
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return CGSizeMake(w, KBFit(75 + 6));
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} else {
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return CGSizeMake(w, 140);
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}
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}
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- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section {
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if (section == 0) {
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// 动态返回测量好的 Header 高度
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CGFloat w = collectionView.bounds.size.width ?: KB_SCREEN_WIDTH;
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if (self.headerHeight <= 1) { self.headerHeight = [self kb_calcHeaderHeightForWidth:w]; }
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return CGSizeMake(w, self.headerHeight);
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}
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return CGSizeZero;
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}
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- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
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if (section == 1) { return 14; }
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return 0;
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}
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- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
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if (section == 1) {
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// 留出顶部间距，避免第一个订阅 cell 的边框被 header 盖住
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return UIEdgeInsetsMake(16, 16, 10, 16);
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} else if (section == 2) {
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return UIEdgeInsetsMake(10, 16, 20, 16);
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}
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return UIEdgeInsetsZero;
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}
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#pragma mark - Lazy
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- (UICollectionView *)collectionView {
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if (!_collectionView) {
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UICollectionViewFlowLayout *layout = [UICollectionViewFlowLayout new];
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layout.scrollDirection = UICollectionViewScrollDirectionVertical;
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// 每次宽度变化时让布局失效，便于 header 重算高度
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layout.sectionHeadersPinToVisibleBounds = NO;
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_collectionView = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
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_collectionView.backgroundColor = [UIColor clearColor];
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_collectionView.dataSource = self;
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_collectionView.delegate = self;
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_collectionView.alwaysBounceVertical = YES;
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if (@available(iOS 11.0, *)) {
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_collectionView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
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}
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[_collectionView registerClass:KBVipPayHeaderView.class forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:kKBVipHeaderId];
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[_collectionView registerClass:KBVipSubscribeCell.class forCellWithReuseIdentifier:kKBVipSubscribeCellId];
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[_collectionView registerClass:KBVipReviewListCell.class forCellWithReuseIdentifier:kKBVipReviewListCellId];
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}
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return _collectionView;
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}
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- (UIButton *)closeButton {
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if (!_closeButton) {
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_closeButton = [UIButton buttonWithType:UIButtonTypeCustom];
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[_closeButton setImage:[UIImage imageNamed:@"close_white2_icon"] forState:UIControlStateNormal];
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[_closeButton addTarget:self action:@selector(onTapClose) forControlEvents:UIControlEventTouchUpInside];
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}
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return _closeButton;
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}
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- (void)viewDidLayoutSubviews {
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[super viewDidLayoutSubviews];
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// 宽度变化时重算 Header 高度并刷新布局
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CGFloat w = self.collectionView.bounds.size.width ?: KB_SCREEN_WIDTH;
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CGFloat newH = [self kb_calcHeaderHeightForWidth:w];
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if (fabs(newH - self.headerHeight) > 0.5) {
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self.headerHeight = newH;
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UICollectionViewFlowLayout *layout = (UICollectionViewFlowLayout *)self.collectionView.collectionViewLayout;
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[layout invalidateLayout];
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}
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}
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@end
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