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iOS —— 3Gshare项目总结与思考

news 2025/7/22 7:21:28

登陆注册及推出主页面

这部分有两种写法：一种是在SceneDelegate中推出LoginVC，后在判断登陆成功后退去主要程序。另一种则是先加载主程序，后推出登陆页面。通过同组同学实践证明，后者在推出登陆页面时会闪一下，因此还是建议采用第一种方法。

本人的登陆页面在最初使用数组储存用户名和密码，后来发现在修改密码时会较为困难，因此我创建了一个单例类。

同时我简单了解了一种轻量化本地存储方式 setObject: forKey: 

他支持的对象类型包括：

类型

示例

NSString

用户名、token 等

NSNumber

整数、布尔值等

NSArray

字符串数组、数字数组等

NSDictionary

键值对结构

NSDate

时间

NSData

二进制数据（如图片、加密）

- (void)saveLoginStatus {NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];[defaults setObject:@"wutong" forKey:@"username"];[defaults setBool:YES forKey:@"isLoggedIn"];[defaults synchronize]; // 可选
}//读取时NSString *name = [[NSUserDefaults standardUserDefaults] objectForKey:@"username"];
BOOL isLoggedIn = [[NSUserDefaults standardUserDefaults] boolForKey:@"isLoggedIn"];
NSUserDefaults 的 setObject:forKey: 是用于保存简单用户数据的 API，轻量、易用，适合设置类数据（如用户名、偏好设置、登录状态等）。 
//  UserManager.m
//  3GShareee
//
//  Created by 吴桐 on 2025/7/18.
//#import "UserManager.h"@implementation UserManager//单例
+ (instancetype)sharedManager {static UserManager *manager = nil;static dispatch_once_t onceToken;dispatch_once(&onceToken, ^{manager = [[UserManager alloc] init];[manager loadUserData];});return manager;
}- (id)init {self = [super init];if (self) {_usernames = [NSMutableArray array];_passwords = [NSMutableArray array];[_usernames addObject:@"1"];[_passwords addObject:@"1"];}return self;
}//保存到本地
- (void)saveUserData {[[NSUserDefaults standardUserDefaults] setObject:self.usernames forKey:@"savedUsernames"];[[NSUserDefaults standardUserDefaults] setObject:self.passwords forKey:@"savedPasswords"];[[NSUserDefaults standardUserDefaults] synchronize];    //不懂，好像是保存
}- (void)loadUserData {NSArray *savedUsernames = [[NSUserDefaults standardUserDefaults] objectForKey:@"savedUsernames"];NSArray *savedPasswords = [[NSUserDefaults standardUserDefaults] objectForKey:@"savedPasswords"];NSDictionary *savedGenders = [[NSUserDefaults standardUserDefaults] objectForKey:@"savedUserGenders"];if (savedUsernames) {self.usernames = [savedUsernames mutableCopy];}if (savedPasswords) {self.passwords = [savedPasswords mutableCopy];}if (![self.usernames containsObject:@"1"]) {[self.usernames addObject:@"1"];[self.passwords addObject:@"1"];}
}- (BOOL)updatePasswordForUser:(NSString *)username oldPassword:(NSString *)oldPassword newPassword:(NSString *)newPassword {NSUInteger index = [self.usernames indexOfObject:username];if (index == NSNotFound) {  //NSNotFound 是 Objective-C 中的一个常量，表示“没有找到”的情况，常用于查找操作的结果。return NO;}if (![oldPassword isEqualToString:self.passwords[index]]) {return NO;}// 更新密码self.passwords[index] = newPassword;[self saveUserData];return YES;
}@end

同时，我设置了管理员密码1 1，用于绕过调试时便捷登陆，不必输入较长密码。注册功能和修改密码功能中，密码为不小于6位的数字或字母。

自动登录

我设置了autoBtn，和autoBtn01。前者为切换的按钮主体，后者为一个辅助按钮，当用户点击文字时，也会触发和前者相同的函数从而实现按钮图标的切换，更加人性化。

[self.autoBtn setImage: [UIImage imageNamed: @"autoreserved.png"] forState: UIControlStateNormal];[self.autoBtn setImage: [UIImage imageNamed: @"autohighlighted.png"] forState: UIControlStateSelected];self.autoBtn.selected = NO;[self.autoBtn addTarget: self action: @selector(pressAuto) forControlEvents: UIControlEventTouchUpInside];self.autoBtn1 = [UIButton buttonWithType: UIButtonTypeRoundedRect];self.autoBtn1.frame = CGRectMake(67, 550, 64, 16);[self.autoBtn1 setTitle: @"自动登录" forState: UIControlStateNormal];[self.autoBtn1 setTintColor: [UIColor colorWithDisplayP3Red: 14.0 / 255 green: 46.0 / 255 blue: 121.0 / 255 alpha: 1.0]];[self.autoBtn1 addTarget: self action: @selector(pressAuto) forControlEvents: UIControlEventTouchUpInside];

登陆

UserManager *userManager = [UserManager sharedManager];self.arrayUsername = userManager.usernames;self.arrayPassword = userManager.passwords;
-(void) pressLeft:(UIButton *) button{NSString *username = self.userName.text;NSString *password = self.passWord.text;// 非空检查if (username.length == 0 || password.length == 0) {[self showAlertWithMessage:@"用户名和密码不能为空"];return;}// 长度限制if (username.length > 10 || password.length > 10) {[self showAlertWithMessage:@"用户名和密码不能超过10个字符"];return;}// 正则判断是否仅包含字母、数字、下划线// 本人暂时还没学...NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"^[A-Za-z0-9_]+$" options:0 error:nil];if ([regex numberOfMatchesInString:username options:0 range:NSMakeRange(0, username.length)] == 0 ||[regex numberOfMatchesInString:password options:0 range:NSMakeRange(0, password.length)] == 0) {[self showAlertWithMessage:@"用户名和密码只能包含字母、数字和下划线"];return;}BOOL correct = NO;for (int i = 0; i < self.arrayUsername.count; i++) {if ([self.arrayUsername[i] isEqualToString: self.userName.text] &&[self.arrayPassword[i] isEqualToString: self.passWord.text] &&(self.userName.text != nil) &&(self.passWord.text != nil)) {correct = YES;// 保存当前登录用户UserManager *userManager = [UserManager sharedManager];userManager.currentUser = self.userName.text;break;}}if (!correct) {UIAlertController* wrongWarning  = [UIAlertController alertControllerWithTitle:@"❗️" message:@"账号密码错误！" preferredStyle:UIAlertControllerStyleAlert];UIAlertAction* sure = [UIAlertAction actionWithTitle:@"O K" style:UIAlertActionStyleDefault handler:nil];[wrongWarning addAction:sure];[self presentViewController:wrongWarning animated:YES completion:nil];} else {FirstVC* firstView = [[FirstVC alloc] init];firstView.view.backgroundColor = [UIColor colorWithRed: (230.0 / 255) green: (222.0 / 255) blue: (220.0 / 255) alpha: 1];firstView.tabBarItem = [[UITabBarItem alloc] initWithTitle: nil image: [[UIImage imageNamed: @"FirstVC.png"]  imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] selectedImage: [[UIImage imageNamed: @"FirstVC_tapped.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] ];SecondVC* secondView = [[SecondVC alloc] init];secondView.view.backgroundColor = [UIColor colorWithRed: (230.0 / 255) green: (222.0 / 255) blue: (220.0 / 255) alpha: 1];secondView.tabBarItem = [[UITabBarItem alloc] initWithTitle: nil image: [[UIImage imageNamed: @"SecondVC.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] selectedImage: [[UIImage imageNamed: @"SecondVC_tapped.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] ];ThirdVC* thirdView = [[ThirdVC alloc] init];thirdView.view.backgroundColor = [UIColor colorWithRed: (230.0 / 255) green: (222.0 / 255) blue: (220.0 / 255) alpha: 1];thirdView.tabBarItem = [[UITabBarItem alloc] initWithTitle: nil image: [[UIImage imageNamed: @"ThirdVC.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] selectedImage: [[UIImage imageNamed: @"ThirdVC_tapped.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] ];FourthVC* fourthView = [[FourthVC alloc] init];fourthView.view.backgroundColor = [UIColor colorWithRed: (230.0 / 255) green: (222.0 / 255) blue: (220.0 / 255) alpha: 1];fourthView.tabBarItem = [[UITabBarItem alloc] initWithTitle: nil image: [[UIImage imageNamed: @"FourthVC.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] selectedImage: [[UIImage imageNamed: @"FourthVC_tapped.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] ];FifthVC* fifthView = [[FifthVC alloc] init];fifthView.view.backgroundColor = [UIColor colorWithRed: (230.0 / 255) green: (222.0 / 255) blue: (220.0 / 255) alpha: 1];fifthView.tabBarItem = [[UITabBarItem alloc] initWithTitle: nil image: [[UIImage imageNamed: @"FifthVC.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] selectedImage: [[UIImage imageNamed: @"FifthVC_tapped.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal] ];//用NavigationController将每个视图包起来UINavigationController* navigationFirst = [[UINavigationController alloc] initWithRootViewController:firstView];UINavigationController* navigationSecond = [[UINavigationController alloc] initWithRootViewController:secondView];UINavigationController* navigationThird = [[UINavigationController alloc] initWithRootViewController:thirdView];UINavigationController* navigationFourth = [[UINavigationController alloc] initWithRootViewController:fourthView];UINavigationController* navigationFifth = [[UINavigationController alloc] initWithRootViewController:fifthView];//组装UINavigationBarAppearance* appearance = [[UINavigationBarAppearance alloc] init];appearance.backgroundColor = [UIColor colorWithRed: (43.0 / 255) green: (123.0 / 255) blue: (191.0 / 255) alpha: 1];firstView.navigationController.navigationBar.standardAppearance = appearance;firstView.navigationController.navigationBar.barStyle = UIBarStyleDefault;firstView.navigationController.navigationBar.scrollEdgeAppearance = appearance;secondView.navigationController.navigationBar.scrollEdgeAppearance = appearance;thirdView.navigationController.navigationBar.scrollEdgeAppearance = appearance;fourthView.navigationController.navigationBar.scrollEdgeAppearance = appearance;fifthView.navigationController.navigationBar.scrollEdgeAppearance = appearance;NSArray* arrayViewController = [NSArray arrayWithObjects: navigationFirst, navigationSecond, navigationThird, navigationFourth, navigationFifth, nil];UITabBarController* tabBarViewController = [[UITabBarController alloc] init];tabBarViewController.viewControllers = arrayViewController;// 在tabBar上方添加自定义覆盖视图UIView* overlayView = [[UIView alloc] initWithFrame:CGRectMake(0, 50, WIDTH, tabBarViewController.tabBar.bounds.size.height)];overlayView.backgroundColor = [UIColor blackColor];overlayView.tag = 1001;[tabBarViewController.tabBar addSubview:overlayView];[tabBarViewController.tabBar bringSubviewToFront:overlayView];tabBarViewController.modalPresentationStyle = UIModalPresentationFullScreen;[self presentViewController: tabBarViewController animated: YES completion: nil];}}

自动收起键盘

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {[self.view endEditing:YES];
}

这两个方法笔者暂时也不算很清楚讲述，只算一知半解，只知道能实现这个功能 

- (void)keyboardWillAppear:(NSNotification *)notification{CGRect keyboardFrame = [notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];CGFloat keyboardY = keyboardFrame.origin.y;[UIView animateWithDuration:0.3 animations:^{self.view.transform = CGAffineTransformMakeTranslation(0, keyboardY - self.view.frame.size.height + 20);}];
}- (void)keyboardWillDisAppear:(NSNotification *)notification{[UIView animateWithDuration:0.3 animations:^{self.view.transform = CGAffineTransformIdentity;}];
}

注册

核心代码如下

-(void) pressConfirm {NSString *username = self.usernameTextField.text;NSString *password = self.passwordTextField.text;UserManager *userManager = [UserManager sharedManager];if (username.length == 0 || password.length == 0) {UIAlertController* warning = [UIAlertController alertControllerWithTitle:@"提示"message:@"账号或密码不能为空"preferredStyle:UIAlertControllerStyleAlert];UIAlertAction* warn = [UIAlertAction actionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:nil];[warning addAction:warn];[self presentViewController:warning animated:YES completion:nil];return;}// 检查密码长度是否大于6位if (password.length < 6) {UIAlertController* warning = [UIAlertController alertControllerWithTitle:@"提示"message:@"密码长度必须大于6位"preferredStyle:UIAlertControllerStyleAlert];UIAlertAction* warn = [UIAlertAction actionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:nil];[warning addAction:warn];[self presentViewController:warning animated:YES completion:nil];return;}// 检查用户名是否已存在if ([userManager.usernames containsObject:username]) {UIAlertController* warning = [UIAlertController alertControllerWithTitle:@"提示"message:@"该用户名已被注册"preferredStyle:UIAlertControllerStyleAlert];UIAlertAction* warn = [UIAlertAction actionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:nil];[warning addAction:warn];[self presentViewController:warning animated:YES completion:nil];return;}// 所有检查通过，注册新用户[userManager.usernames addObject:username];[userManager.passwords addObject:password];[userManager saveUserData]; // 保存到磁盘// 显示注册成功提示UIAlertController* successAlert = [UIAlertController alertControllerWithTitle:@"注册成功"message:@"您已成功注册"preferredStyle:UIAlertControllerStyleAlert];UIAlertAction* okAction = [UIAlertAction actionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction * _Nonnull action) {// 关闭注册页面[self dismissViewControllerAnimated:YES completion:nil];}];[successAlert addAction:okAction];[self presentViewController:successAlert animated:YES completion:nil];// 清空输入框self.usernameTextField.text = @"";self.passwordTextField.text = @"";self.emailTextField.text = @"";
}

FirstVC

因为文章的格式类似如图，我新建了一个cell用于设置所有类似的页面，textTableViewCell

首页中，我们需要在点击假日时跳转到另一个页面，同时实现两个页面之间的点赞同步。

先来说说推出假日页面。

我在texttableView中添加了一个手势识别

UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc]initWithTarget:selfaction:@selector(CellTap)];[self.contentView addGestureRecognizer:tapGesture];
// 告诉我被点击了
- (void)CellTap {if ([self.delegate respondsToSelector:@selector(textTableViewCellDidTap:)]) {[self.delegate textTableViewCellDidTap:self];}
}

在首页中： 我们只处理第一行的情况

- (void)textTableViewCellDidTap:(textTableViewCell *)cell {NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];if (indexPath.section == 1 && indexPath.row == 0) {NSMutableDictionary *holidayData = [self.dataArray[0] mutableCopy];HolidayDetailViewController *detailVC = [[HolidayDetailViewController alloc] init];detailVC.holidayData = holidayData;detailVC.delegate = self;detailVC.isLiked = [holidayData[@"isLiked"] boolValue]; // 传递当前点赞状态// 推入导航栈[self.navigationController pushViewController:detailVC animated:YES];}
}

再来说说点赞。

其实下图中的方法更为简便，不需要我的多重传值

列表页点赞：
textTableViewCell (按钮点击) → FirstVC (更新数据源) → 刷新UI

详情页点赞：
HolidayDetailViewController → FirstVC (通过代理回调) → 更新数据源 → 刷新列表页单元格

传值法：

列表页点赞：

在textCell中：

- (void)likeButtonTapped:(UIButton *)sender {sender.selected = !sender.selected;//一种保护 检查是否实现方法if ([self.delegate respondsToSelector:@selector(textTableViewCell:didChangeLikeStatus:)]) {[self.delegate textTableViewCell:self didChangeLikeStatus:sender.selected];//调用代理方法}
}

对应FirstVC中：

- (void)textTableViewCell:(textTableViewCell *)cell didChangeLikeStatus:(BOOL)isLiked {NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];if (indexPath.row < self.dataArray.count) {NSMutableDictionary *item = [self.dataArray[indexPath.row] mutableCopy];item[@"isLiked"] = @(isLiked);self.dataArray[indexPath.row] = item;}
}

详情页点赞：

holidayVC: 

- (void)pressLike {self.isLiked = !self.isLiked;self.likeIcon.selected = self.isLiked;//通过代理通知列表页if ([self.delegate respondsToSelector:@selector(holidayDetail:didChangeLikeStatus:)]) {[self.delegate holidayDetail:self didChangeLikeStatus:self.isLiked];}
}

FirstVC:

- (void)holidayDetail:(HolidayDetailViewController *)detail didChangeLikeStatus:(BOOL)isLiked {NSMutableDictionary *holidayData = [self.dataArray[0] mutableCopy];holidayData[@"isLiked"] = @(isLiked);self.dataArray[0] = holidayData;NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:1];//这个函数可以刷新单元格[self.tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}

SecondVC

- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {if ([self.searchBar.text isEqualToString:@"大白"]) {SearchResultViewController* searchResultsView = [[SearchResultViewController alloc] init];[self.navigationController pushViewController: searchResultsView animated: YES];}
}

还有一部分是上传页面 

实现效果如图。两个textField用来输入作品名称和文章内容

折叠cell：

   self.foldButton = [UIButton buttonWithType:UIButtonTypeCustom];self.foldButton.frame = CGRectMake(315, 168, 48, 48);UIImage *foldImage = [UIImage imageNamed:@"guanbi.png"];[self.foldButton setImage:foldImage forState:UIControlStateNormal];[self.foldButton setTintColor:[UIColor colorWithRed:0.2 green:0.6 blue:0.9 alpha:1.0]];[self.foldButton addTarget:self action:@selector(pressUnfold) forControlEvents:UIControlEventTouchUpInside];[self.view addSubview:self.foldButton];
- (void)pressUnfold {[UIView animateWithDuration:0.3 animations:^{if (self.isFolded) {self.foldTableView.frame = CGRectMake(225, 180, 110, self.foldCellArray.count * 25);[self.foldButton setImage:[UIImage imageNamed:@"kaiqi.png"] forState:UIControlStateNormal];} else {self.foldTableView.frame = CGRectMake(225, 180, 110, 25);[self.foldButton setImage:[UIImage imageNamed:@"guanbi.png"] forState:UIControlStateNormal];}}];self.isFolded = !self.isFolded;[self.foldTableView reloadData]; // 刷新表格以显示正确行数
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {if (!self.isFolded) {NSString *selectedCategory = self.foldCellArray[indexPath.row];if (indexPath.row != 0) {[self.foldCellArray removeObjectAtIndex:indexPath.row];[self.foldCellArray insertObject:selectedCategory atIndex:0];}[self pressUnfold];} else {[self pressUnfold];}
}

上传图片： 

一个choosePhoto按钮用来弹出照片墙，另一个numbersOfPhotolabel用来显示选中的照片数量。如上文示范图。

- (void)pressChoosePhotoButton {PhotoWallViewController* photoWallViewController = [[PhotoWallViewController alloc] init];photoWallViewController.delegate = self;[self.navigationController pushViewController: photoWallViewController animated: YES];
}

- (void)pressPhoto: (UIButton*)button {if (button.selected == NO) {int selectNumber = (int)(button.tag - 100);self.numbersOfPhoto++;[self.imageNameArray addObject: [NSString stringWithFormat: @"photo%d.jpg", selectNumber]];button.selected = YES;} else {int selectNumber = (int)(button.tag - 100);self.numbersOfPhoto--;[self.imageNameArray removeObject: [NSString stringWithFormat: @"photo%d.jpg", selectNumber]];button.selected = NO;}
}
NSString* message = [NSString stringWithFormat: @"成功上传 %d 张图片!", self.numbersOfPhoto];UIAlertController* boomAlert = [UIAlertController alertControllerWithTitle: @"提示" message: message preferredStyle: UIAlertControllerStyleAlert];UIAlertAction* boomAction= [UIAlertAction actionWithTitle: @"确定" style: UIAlertActionStyleDefault handler: ^(UIAlertAction *action) {// 返回前调用代理方法if ([self.delegate respondsToSelector:@selector(changedPhotoName:andNumber:)]) {[self.delegate changedPhotoName:self.imageNameArray.firstObject andNumber:self.numbersOfPhoto];}[self.navigationController popViewControllerAnimated: YES];}];[boomAlert addAction: boomAction];[self presentViewController: boomAlert animated:YES completion:nil];

注意，在这里我们传回来的是数组的第一个元素

- (void)changedPhotoName:(NSString *)nameOfPhoto andNumber:(int)numbersOfPhoto {self.numbersOfPhoto = numbersOfPhoto;if (nameOfPhoto) {[self.choosePhoto setBackgroundImage:[UIImage imageNamed:nameOfPhoto] forState:UIControlStateNormal];[self.choosePhoto setTitle:@"" forState:UIControlStateNormal];}// 更新图片数量标签self.numbersOfPhotoLabel.text = [NSString stringWithFormat:@"%d", numbersOfPhoto];self.numbersOfPhotoLabel.hidden = (numbersOfPhoto == 0);
}

 在发布页面修改照片数量，同时修改那个背景。

ThirdVC

直接注册三个一模一样的cell，以实现互不干涉。古老简单但是有效

- (void)setupTableViews {CGFloat tableHeight = HEIGHT - 150;self.tableView01 = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, WIDTH, tableHeight) style:UITableViewStylePlain];self.tableView01.delegate = self;self.tableView01.dataSource = self;self.tableView01.backgroundColor = [UIColor whiteColor];self.tableView01.showsVerticalScrollIndicator = NO;self.tableView01.separatorStyle = UITableViewCellSeparatorStyleNone;self.tableView02 = [[UITableView alloc] initWithFrame:CGRectMake(WIDTH, 0, WIDTH, tableHeight) style:UITableViewStylePlain];self.tableView02.delegate = self;self.tableView02.dataSource = self;self.tableView02.backgroundColor = [UIColor whiteColor];self.tableView02.showsVerticalScrollIndicator = NO;self.tableView02.separatorStyle = UITableViewCellSeparatorStyleNone;self.tableView03 = [[UITableView alloc] initWithFrame:CGRectMake(WIDTH * 2, 0, WIDTH, tableHeight) style:UITableViewStylePlain];self.tableView03.delegate = self;self.tableView03.dataSource = self;self.tableView03.backgroundColor = [UIColor whiteColor];self.tableView03.showsVerticalScrollIndicator = NO;self.tableView03.separatorStyle = UITableViewCellSeparatorStyleNone;// 注册cell[self.tableView01 registerClass:[textTableViewCell class] forCellReuseIdentifier:@"cell"];[self.tableView02 registerClass:[textTableViewCell class] forCellReuseIdentifier:@"cell"];[self.tableView03 registerClass:[textTableViewCell class] forCellReuseIdentifier:@"cell"];[self.scrollView addSubview:self.tableView01];[self.scrollView addSubview:self.tableView02];[self.scrollView addSubview:self.tableView03];
}- (void)createArticles {UIImage *defaultImage = [UIImage systemImageNamed:@"photo"];self.articlesSection0 = [NSMutableArray arrayWithArray:@[@{@"thumbnail": [UIImage imageNamed:@"article1"] ?: defaultImage, @"title": @"如期而至", @"author": @"SHARE 钢蛋", @"category": @"", @"time": @"16", @"isLiked": @NO},@{@"thumbnail": [UIImage imageNamed:@"article2"] ?: defaultImage, @"title": @"duck的学问", @"author": @"SHARE 王二麻", @"category": @"", @"time": @"20", @"isLiked": @NO},@{@"thumbnail": [UIImage imageNamed:@"article3"] ?: defaultImage, @"title": @"您的故事", @"author": @"SHARE 和尚", @"category": @"", @"time": @"25", @"isLiked": @NO},@{@"thumbnail": [UIImage imageNamed:@"article4"] ?: defaultImage, @"title": @"八月的故事", @"author": @"SHARE 二五", @"category": @"", @"time": @"60", @"isLiked": @NO},@{@"thumbnail": [UIImage imageNamed:@"article5"] ?: defaultImage, @"title": @"我们终将再见", @"author": @"SHARE 小唐", @"category": @"", @"time": @"60", @"isLiked": @NO}]];self.articlesSection1 = [self.articlesSection0 mutableCopy];self.articlesSection2 = [self.articlesSection0 mutableCopy];
}

FourthVC

FifthVC

我上传的

直接调用ThirdVC中的页面

我的信息

评论 && 活动通知 && 我的推荐

这段代码我也没有很懂，只知道能实现一个类似这样的效果

UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:@"没有新内容" preferredStyle:UIAlertControllerStyleAlert];[self presentViewController:alert animated:YES completion:nil];dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{[alert dismissViewControllerAnimated:YES completion:nil];});

新关注的

这部分需要实现一个关注的留存如下图

 通过如下方式可以确保只创建一个followVC，进而保存之前的关注。

@property (nonatomic, strong) followViewController *followVC;else if ([messageType isEqualToString:@"新关注的"]) {// 使用强引用确保只创建一次 followViewControllerif (!_followVC) {_followVC = [[followViewController alloc] init];_followVC.title = @"关注列表";_followVC.view.backgroundColor = [UIColor whiteColor];}[self.navigationController pushViewController:_followVC animated:YES];
私信：

首先要隐藏tabBar

// 隐藏tabBar
- (void)viewWillAppear:(BOOL)animated {[super viewWillAppear:animated];self.tabBarController.tabBar.hidden = YES;
}// 恢复tabBar
- (void)viewWillDisappear:(BOOL)animated {[super viewWillDisappear:animated];self.tabBarController.tabBar.hidden = NO;
}


- (void)setupMessages {_messageArray = [NSMutableArray array];_rowHeightArray = [NSMutableArray array];[self addMessage:@"1～365选一个数字" isOutgoing:NO];[self addMessage:@"52" isOutgoing:YES];[self addMessage:@"我会在接下来的365天一直爱你" isOutgoing:NO];[self addMessage:@"我能不能重新选" isOutgoing:YES];[self addMessage:@"能" isOutgoing:NO];[self addMessage:@"1" isOutgoing:YES];[self addMessage:@"你只需要爱我一天，剩下的364天我来爱你" isOutgoing:YES];[self scrollToBottom];
}- (void)addMessage:(NSString *)message isOutgoing:(BOOL)isOutgoing {//添加NSDictionary *messageDict = @{@"text": message,@"outgoing": @(isOutgoing)};[_messageArray addObject:messageDict];NSDictionary *attri = @{NSFontAttributeName: [UIFont systemFontOfSize:16]};  //16号字体//boundingRectWithSize:... 是 NSString 的一个方法：“请你告诉我最大容纳的尺寸，我会帮你计算出这段字符串在这些限制下需要多大的空间。”CGSize size = [message boundingRectWithSize:CGSizeMake(WIDTH * 0.6, CGFLOAT_MAX)options:NSStringDrawingUsesLineFragmentOrigin //绘图时请考虑换行，按段落来布局文字attributes:attri    //就是第1行设置的字体属性字典。告诉系统你用什么样的字体来绘制这段文字。context:nil].size;  //一般用于绘图时提供额外信息，但我们这里只是“量尺寸”，所以设置为 nil。CGFloat height = MAX(60, size.height + 40);//行高[_rowHeightArray addObject:@(height)];
}- (void)sendMessage {if (self.textField.text.length == 0) return;[self addMessage:self.textField.text isOutgoing:self.isNextOutgoing];self.isNextOutgoing = !self.isNextOutgoing; //实现交替发送NSIndexPath *indexPath = [NSIndexPath indexPathForRow:self.messageArray.count - 1 inSection:0];[self.tableView insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationBottom];//滑到底部[self scrollToBottom];self.textField.text = @"";
}- (void)scrollToBottom {if (self.messageArray.count > 0) {NSIndexPath *indexPath = [NSIndexPath indexPathForRow:self.messageArray.count - 1 inSection:0];[self.tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];}
}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {//cell复用static NSString *cellIdentifier = @"MessageCell";UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];if (!cell) {cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];cell.selectionStyle = UITableViewCellSelectionStyleNone;cell.backgroundColor = [UIColor clearColor];} else {//清除原先的子视图for (UIView *subview in cell.contentView.subviews) {[subview removeFromSuperview];}}

设置

基本资料需要保存之前修改后的男女性别 不能人家改成女的推出去以后又成男的了

还是以前那个方法，只创建一次

- (void)showBasicInfo {if (!_basicsVC) {_basicsVC = [[basicsViewController alloc] init];_basicsVC.view.backgroundColor = [UIColor whiteColor];}[self.navigationController pushViewController:_basicsVC animated:YES];
}

修改密码：

- (void)pressButton {NSString *oldPassword = self.firstTextField.text;NSString *newPassword = self.secondTextField.text;NSString *confirmPassword = self.thirdTextField.text;UserManager *userManager = [UserManager sharedManager];NSString *currentUser = userManager.currentUser;if (currentUser.length == 0) {// 没有当前登录用户self.alertController = [UIAlertController alertControllerWithTitle:@"错误"message:@"无法获取当前登录用户信息"preferredStyle:UIAlertControllerStyleAlert];}// 检查新密码长度else if (newPassword.length < 6 || newPassword.length > 20) {self.alertController = [UIAlertController alertControllerWithTitle:@"通知"message:@"密码需为6-20位英文或数字组合"preferredStyle:UIAlertControllerStyleAlert];}// 检查两次密码是否一致else if (![newPassword isEqualToString:confirmPassword]) {self.alertController = [UIAlertController alertControllerWithTitle:@"通知"message:@"两次新密码输入不同"preferredStyle:UIAlertControllerStyleAlert];}// 检查新密码是否与旧密码相同else if ([oldPassword isEqualToString:newPassword]) {self.alertController = [UIAlertController alertControllerWithTitle:@"通知"message:@"新密码不能与旧密码相同"preferredStyle:UIAlertControllerStyleAlert];}// 尝试修改密码else {// 调用用户管理类修改密码if ([userManager updatePasswordForUser:currentUser oldPassword:oldPassword newPassword:newPassword]) {self.alertController = [UIAlertController alertControllerWithTitle:@"成功"message:@"密码修改成功"preferredStyle:UIAlertControllerStyleAlert];// 修改成功后清空密码框self.firstTextField.text = @"";self.secondTextField.text = @"";self.thirdTextField.text = @"";} else {self.alertController = [UIAlertController alertControllerWithTitle:@"错误"message:@"旧密码不正确"preferredStyle:UIAlertControllerStyleAlert];}}UIAlertAction *sure = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil];[self.alertController addAction:sure];[self presentViewController:self.alertController animated:YES completion:nil];
}

对应UserManger中：

- (BOOL)updatePasswordForUser:(NSString *)username oldPassword:(NSString *)oldPassword newPassword:(NSString *)newPassword {NSUInteger index = [self.usernames indexOfObject:username];if (index == NSNotFound) {  //NSNotFound 是 Objective-C 中的一个常量，表示“没有找到”的情况，常用于查找操作的结果。return NO;}if (![oldPassword isEqualToString:self.passwords[index]]) {return NO;}// 更新密码self.passwords[index] = newPassword;[self saveUserData];return YES;
}

其他页面：在此不过多赘述了

Tips：

self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone; // 移除分隔线

这个代码可以用来移除cell间的分界线

 UIBarButtonItem* btn = [[UIBarButtonItem alloc] initWithImage: [UIImage imageNamed: @"holidayfanhui.png"] style: UIBarButtonItemStylePlain target: self action: @selector(pressReturn)];self.navigationItem.leftBarButtonItem = btn;btn.tintColor = [UIColor whiteColor];- (void)pressReturn {[self.navigationController popViewControllerAnimated: YES];
}

这段代码可以用来自定义返回键类

// 在tabBar上方添加自定义覆盖视图UIView* overlayView = [[UIView alloc] initWithFrame:CGRectMake(0, 50, WIDTH, tabBarViewController.tabBar.bounds.size.height)];overlayView.backgroundColor = [UIColor blackColor];[tabBarViewController.tabBar addSubview:overlayView];

这个代码可以实现遮挡tabBar和屏幕底部之间的区域，更加美观，当然如果为了更加自然可以自己调颜色。 

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