如上图所示，cell的类型如下：
@interface ZXSchoolMenuCollectionViewCell : UICollectionViewCell
@property (nonatomic , weak) IBOutlet UIImageView *iconImage;
@property (nonatomic , weak) IBOutlet UILabel *nameLabel;
@property (nonatomic , weak) IBOutlet UIView *virticalLine;
@property (nonatomic , weak) IBOutlet UIView *horizonLine;
@property (nonatomic , weak) IBOutlet UIView *badgeView;
@endviewcontroller的实现
- (void)viewDidLoad
{
[super viewDidLoad];
self.schoolImageView.layer.contentsGravity = kCAGravityResizeAspectFill;
self.schoolImageView.layer.masksToBounds = YES;
[self.tableView setSeparatorColor:[UIColor colorWithRed:237/255.0 green:235/255.0 blue:229/255.0 alpha:1.0]];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(changeSuccess:) name:@"changeSuccess" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(editSchool) name:changeSchoolNotification object:nil];
UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithTitle:@"切换学校" style:UIBarButtonItemStylePlain target:self action:@selector(moreAction:)];
self.navigationItem.rightBarButtonItem = item;
MBProgressHUD *hud = [MBProgressHUD showWaiting:@"获取身份" toView:self.view];
[ZXAccount getLoginStatusWithUid:[ZXUtils sharedInstance].user.uid block:^(ZXAccount *account , NSError *error) {
[hud hide:YES];
if (!error) {
[ZXUtils sharedInstance].account = account;
NSDictionary *dic = [account keyValues];
[GVUserDefaults standardUserDefaults].account = dic;
if (account.logonStatus == 1) {
ZXBlankSchoolViewController *vc = [ZXBlankSchoolViewController viewControllerFromStoryboard];
vc.view.frame = self.view.bounds;
[self.view addSubview:vc.view];
} else if (account.logonStatus == 2) {
[self performSegueWithIdentifier:@"change" sender:nil];
}
[self configureUIWithSchool:[ZXUtils sharedInstance].currentSchool];
[self configureDataArray];
[self.tableView reloadData];
[self setTags:account.tags];
[self getUnreadMessageNum];
}
}];
[[EaseMob sharedInstance].chatManager addDelegate:self
delegateQueue:nil];
[self.tableView setExtrueLineHidden];
}
- (void)getUnreadMessageNum
{
//TODO: 先注释掉，会出现文字重叠
[ZXDynamicMessage getNewSchoolDynamicMessageWithUid:GLOBAL_UID sid:[ZXUtils sharedInstance].currentSchool.sid block:^(NSInteger newMessageNum, NSError *error) {
unreadNum = newMessageNum;
[self.tableView reloadData];
}];
}
- (void)editSchool
{
[self configureUIWithSchool:[ZXUtils sharedInstance].currentSchool];
}
- (void)setTags:(NSString *)tags
{
NSArray *arr = [tags componentsSeparatedByString:@","];
NSSet *set = [NSSet setWithArray:arr];
[APService setTags:[APService filterValidTags:set] alias:[ZXUtils sharedInstance].user.account callbackSelector:@selector(tagsAliasCallback:tags:alias:) object:self];
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
[self.rdv_tabBarController setTabBarHidden:NO animated:YES];
[self.navigationController.navigationBar setHidden:NO];
if ([ZXUtils sharedInstance].currentSchool) {
[self getUnreadMessageNum];
}
}
- (void)changeSuccess:(NSNotification *)notification
{
[self configureUIWithSchool:[ZXUtils sharedInstance].currentSchool];
[self configureDataArray];
[self.tableView reloadData];
}
- (IBAction)moreAction:(id)sender
{
[self performSegueWithIdentifier:@"change" sender:sender];
}
- (void)configureDataArray
{
self.dataArray = [[NSMutableArray alloc] initWithObjects:@"校园动态",@"校园公告",@"校园简介",@"教师风采",@"打卡记录",@"我的IC卡", nil];
NSArray *menuArray;
ZXIdentity identity = [[ZXUtils sharedInstance] getHigherIdentity];
if (identity == ZXIdentityParent) {
menuArray = @[@"教工列表"];
} else if (identity == ZXIdentityStaff) {
menuArray = @[@"组织架构"];
} else {
menuArray = @[@"组织架构",@"班级列表"];
}
[self.dataArray insertObjects:menuArray atIndexes:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(4, menuArray.count)]];
}
#pragma mark- tableview delegate
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 1;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 201;
}
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
return 7;
}
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
return [[UIView alloc] initWithFrame:CGRectZero];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
__weak __typeof(&*self)weakSelf = self;
ZXSchoolMenuTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"ZXSchoolMenuTableViewCell"];
[cell configureWithDataArray:self.dataArray unreadNum:unreadNum];
cell.selectIndexBlock = ^(NSInteger index) {
NSString *string = weakSelf.dataArray[index];
if ([string isEqualToString:@"校园动态"]) {
ZXSchollDynamicViewController *vc = [ZXSchollDynamicViewController viewControllerFromStoryboard];
vc.unreadCount = unreadNum;
[weakSelf.navigationController pushViewController:vc animated:YES];
} else if ([string isEqualToString:@"校园公告"]) {
ZXAnnouncementViewController *vc = [ZXAnnouncementViewController viewControllerFromStoryboard];
[weakSelf.navigationController pushViewController:vc animated:YES];
} else if ([string isEqualToString:@"校园简介"]) {
ZXSchoolSummaryViewController *vc = [ZXSchoolSummaryViewController viewControllerFromStoryboard];
[weakSelf.navigationController pushViewController:vc animated:YES];
} else if ([string isEqualToString:@"教师风采"]) {
ZXTeacherGracefulViewController *vc = [ZXTeacherGracefulViewController viewControllerFromStoryboard];
[weakSelf.navigationController pushViewController:vc animated:YES];
} else if ([string isEqualToString:@"打卡记录"]) {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"ICCard" bundle:nil];
NSString *vcName = @"ZXCardHistoryMenuViewController";
UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:vcName];
[weakSelf.navigationController pushViewController:vc animated:YES];
} else if ([string isEqualToString:@"我的IC卡"]) {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"ICCard" bundle:nil];
UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"ZXMyCardViewController"];
[weakSelf.navigationController pushViewController:vc animated:YES];
} else if ([string isEqualToString:@"组织架构"]) {
ZXTeachersViewController *vc = [ZXTeachersViewController viewControllerFromStoryboard];
[self.navigationController pushViewController:vc animated:YES];
} else {
ZXClassListViewController *vc = [ZXClassListViewController viewControllerFromStoryboard];
[self.navigationController pushViewController:vc animated:YES];
}
};
return cell;
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
CGFloat offsetY = scrollView.contentOffset.y;
CGFloat ImageWidth = SCREEN_WIDTH;
CGFloat ImageHeight = 215;
if (offsetY < 0) {
CGFloat factor = ((ABS(offsetY)+ImageHeight)*ImageWidth)/ImageHeight;
CGRect f = CGRectMake(-(factor-ImageWidth)/2, offsetY, factor, ImageHeight+ABS(offsetY));
self.schoolImageView.layer.frame = f;
} else {
CGFloat ImageWidth = self.schoolImageView.frame.size.width;
CGFloat ImageHeight = self.schoolImageView.frame.size.height;
CGRect f = CGRectMake(0, 0, ImageWidth, ImageHeight);
self.schoolImageView.layer.frame = f;
}
}
- (void)configureUIWithSchool:(ZXSchool *)school
{
[[SDWebImageDownloader sharedDownloader] downloadImageWithURL:[NSURL URLWithString:[[ZXImageUrlHelper imageUrlForSchoolImage:school.img].absoluteString stringByReplacingOccurrencesOfString:@"small" withString:@"origin"]] options:SDWebImageRetryFailed|SDWebImageLowPriority progress:nil completed:^(UIImage *image, NSData *data, NSError *error, BOOL finished) {
if (!image) {
image = [UIImage imageNamed:@"mine_profile_bg"];
}
// UIImage *blurImage = [self blureImage:image withInputRadius:5];
// if (blurImage) {
[self.schoolImageView setImage:image];
// }
}];
[self.schoolNameLabel setText:school.name];
[self.imgNumButton setTitle:[NSString stringWithFormat:@"%@",@(school.num_img)] forState:UIControlStateNormal];
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(gotoSchoolImg)];
[self.schoolImageView addGestureRecognizer:tap];
self.schoolImageView.userInteractionEnabled = YES;
}你在ViewController里面实现的是tableView的代理，但是贴出来的Cell怎么是UICollectionViewCell。
看你这代码如果要出问题的话，很有可能是因为回调的block不在主线程上运行，可以尝试打断点排查，特别是-getUnreadMessageNum方法里面的block。
如果是刷新线程错了，可以用这个宏包装刷新UI的代码轻松解决:
// 确保代码运行在主线程的宏定义
#define dispatch_main_async_safe(block)\
if ([NSThread isMainThread]) {\
block();\
} else {\
dispatch_async(dispatch_get_main_queue(), block);\
}如果是-getUnreadMessageNum方法的问题，可以这样修正:
- (void)getUnreadMessageNum
{
[ZXDynamicMessage getNewSchoolDynamicMessageWithUid:GLOBAL_UID sid:[ZXUtils sharedInstance].currentSchool.sid block:^(NSInteger newMessageNum, NSError *error) {
dispatch_main_async_safe(^{
unreadNum = newMessageNum;
[self.tableView reloadData];
});
}];
}