我有一个很久以前由开发人员完成的旧项目。这个特殊项目有3个集合视图，例如collectionAnnouncments，collectionNews和collectionBulletin。
第一个collectionview collectionAnnounments正在加载相同的单元格10次。但是根据响应计数，其他两个部分正确加载了一次单元格。
到目前为止，我对此问题一无所知。我尝试了谷歌的一些解决方案，但由于开发人员的UI和代码实施不好，我无法排序。
Ex-他在一个tableview中使用了一个UICollectionView，并在所有3个collectionview中使用了UICollectionView类，并在所有的collectionview中使用了一般的单元格。
声明......在m档案中
__weak IBOutlet UITableView *table;
UICollectionView *collectionAnnouncments, *collectionBulletin,
*collectionNews;
请检查以下代码，并为我提供更好的简单解决方案，以解决此问题，而无需任何重大修改或重新实施，因为我没有时间。
- (void)viewDidLoad {
[super viewDidLoad];
self.automaticallyAdjustsScrollViewInsets = NO;
home.title=[Utilities getLocalizedStringForKey:@"Home"];
[Utilities setNavigationController:self];
//self.label.text=NSLocalizedFailureReasonErrorKey
self.navigationItem.leftBarButtonItem = nil;
__block BOOL newsDone = NO, bulletInDone = NO, announcmentDone = NO, refreshed = NO;
collectionViewDic = [[NSMutableDictionary alloc]init];
[Utilities serverRequest:@{@"getNewsfeed":@"a6dba37437ced2c3b07469fd6c0661f3"} completionBlock:^(id response) {
collectionViewDic[@"news"] = response[@"response"];
NSArray *responseValues = [response[@"response"] allValues]; // An NSArray of NSArrays
NSMutableArray *dictionarys = [NSMutableArray new];
for (NSArray *dictArrays in responseValues) {
for (NSDictionary *dict in dictArrays) {
[dictionarys addObject:dict];
}
}
_newsArray = dictionarys;
NSLog(@"news%@",dictionarys);
// sorting to newest
NSSortDescriptor* sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"nf_id" ascending:NO];
_sortednewsArray = [_newsArray sortedArrayUsingDescriptors:@[sortDescriptor]];
NSLog(@"Sorted news Response -%@", _sortednewsArray);
//Registeriing the collectionview custom cell
// [UICollectionView registerClass:[CustomCell class] forCellWithReuseIdentifier:@"customCell"];
// [collectionAnnouncments registerClass:[CustomCell class] forCellWithReuseIdentifier:@"customCell"];
// [self.collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"Cell"];
newsDone = YES;
if (newsDone && bulletInDone && announcmentDone && !refreshed) {
refreshed = YES;
[table reloadData];
}
} errorBlock:nil];
[Utilities serverRequest:@{@"getBulletin":@"a6dba37437ced2c3b07469fd6c0661f3"} completionBlock:^(id response) {
// NSString *bulletinID = @"wb_id";
collectionViewDic[@"bulletin"] = response[@"response"];
NSArray *responseValues = [response[@"response"] allValues]; // An NSArray of NSArrays
NSMutableArray *dictionarys = [NSMutableArray new];
for (NSArray *dictArrays in responseValues) {
for (NSDictionary *dict in dictArrays) {
[dictionarys addObject:dict];
}
}
_bulletinArray = dictionarys;
NSLog(@"bulletin%@",dictionarys);
// sorting to newest
NSSortDescriptor* sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"wb_id" ascending:NO];
_sortedbulletinArray = [_bulletinArray sortedArrayUsingDescriptors:@[sortDescriptor]];
NSLog(@"Sorted bulletin Response -%@", _sortedbulletinArray);
bulletInDone = YES;
if (newsDone && bulletInDone && announcmentDone && !refreshed) {
refreshed = YES;
[table reloadData];
}
} errorBlock:nil];
[Utilities serverRequest:@{@"getAnnouncement":@"a6dba37437ced2c3b07469fd6c0661f3"} completionBlock:^(id response) {
collectionViewDic[@"announcement"] = response[@"response"];
NSArray *responseValues = [response[@"response"] allValues]; // An NSArray of NSArrays
NSMutableArray *dictionarys = [NSMutableArray new];
for (NSArray *dictArrays in responseValues) {
for (NSDictionary *dict in dictArrays) {
[dictionarys addObject:dict];
}
}
_annArray = dictionarys;
NSLog(@"AnnouncementResponse%@",dictionarys);
NSLog(@" Ann ID%@", [dictionarys valueForKey:@"anc_id"]);
// sorting to newest
NSSortDescriptor* sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"date_added" ascending:NO];
_sortedAnnArray = [_annArray sortedArrayUsingDescriptors:@[sortDescriptor]];
NSLog(@"Sorted Array Response -%@", _sortedAnnArray);
NSLog(@"Sorted Ann Array-count%zd",_sortedAnnArray.count);
NSLog(@"Sorted Ann ID%@", [_sortedAnnArray valueForKey:@"anc_id"]);
announcmentDone = YES;
if (newsDone && bulletInDone && announcmentDone && !refreshed) {
refreshed = YES;
[table reloadData];
}
} errorBlock:nil];
menuView = [Utilities addMenuView:self];
}
-(void)getNewsFeed
{
collectionViewDic = [[NSMutableDictionary alloc]init];
[Utilities serverRequest:@{@"getNewsfeed":@"a6dba37437ced2c3b07469fd6c0661f3"} completionBlock:^(id response) {
if(response != nil)
{
if ([response isKindOfClass:[NSString class]]) {
// print response .
NSLog(@"MAIN RESPONSE!%@",response);
}
//on successfully response, which provided dictionary,
else if ([[response objectForKey:@"success"] boolValue] == true) {
// on true print response data.
collectionViewDic[@"news"] = response[@"response"];
NSArray *responseValues = [response[@"response"] allValues]; // An NSArray of NSArrays
NSMutableArray *dictionarys = [NSMutableArray new];
for (NSArray *dictArrays in responseValues) {
for (NSDictionary *dict in dictArrays) {
[dictionarys addObject:dict];
}
}
_newsArray = dictionarys;
NSLog(@"news%@",dictionarys);
// sorting to newest
NSSortDescriptor* sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"nf_id" ascending:NO];
_sortednewsArray = [_newsArray sortedArrayUsingDescriptors:@[sortDescriptor]];
NSLog(@"Sorted news Response -%@", _sortednewsArray);
}
//on success response, with failure message which is false.
else if ([[response objectForKey:@"success"] boolValue] == false) {
// handle error on success is false.
}
}
} errorBlock:nil];
}
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
@try {
NSString *key = @"";
if ([collectionView isEqual:collectionNews])
key = @"news";
else if ([collectionView isEqual:collectionAnnouncments])
key = @"announcement";
else if ([collectionView isEqual:collectionBulletin])
key = @"bulletin";
NSDictionary *mainDic = collectionViewDic[key];
NSArray *array = mainDic[ [mainDic allKeys][0] ];
return [array count];
} @catch (NSException *exception) {
return 0;
}
}
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
@try {
//NSString *key = @"";
if ([collectionView isEqual:collectionNews])
return _sortednewsArray.count;
else if ([collectionView isEqual:collectionAnnouncments])
return _sortedAnnArray.count;
else if ([collectionView isEqual:collectionBulletin])
return _sortedbulletinArray.count;
}
@catch (NSException *exception) {
return 0;
}
// return _sortedAnnArray.count + _sortednewsArray.count + _sortedbulletinArray.count;
// return [[collectionViewDic allKeys] count];
// return 50;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(nonnull NSIndexPath *)indexPath {
UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"generalCell" forIndexPath:indexPath];
// CustomCell *cell = (CustomCell *)[collectionView dequeueReusableCellWithReuseIdentifier:@"customCell" forIndexPath:indexPath];
// cell.tag = indexPath.row;
[cell setTag:indexPath.row];
//UILabel *test = [cell.contentView viewWithTag:1];
UIImageView *image = [cell.contentView viewWithTag:1];
//UILabel *cellTitle = [cell.contentView viewWithTag:2];
//UILabel *cellHead =[cell.contentView viewWithTag:2];
if ([collectionView isEqual:collectionAnnouncments]) {
// NSDictionary *mainDic = collectionViewDic[@"announcement"];
// NSArray *array = mainDic[ [mainDic allKeys][indexPath.section] ];
NSDictionary *dic = _sortedAnnArray[indexPath.section] ;
collectionAnnouncments.delegate = self;
collectionAnnouncments.dataSource = self;
// cellHead.text =@"Announcements";
//cellTitle.text = dic[@"anc_title"];
if ([dic[@"announcement_images"] count] > 0)
[image setImageWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@",ANNOUNCMENT_IMAGES_URL,dic[@"announcement_images"][0][@"wi_image"] ] ]] ;
}
else if([collectionView isEqual:collectionNews]) {
//cellHead.text =@"News";
// NSDictionary *mainDic = collectionViewDic[@"news"];
// NSArray *array = mainDic[ [mainDic allKeys][0] ];
NSDictionary *dic = _sortednewsArray[indexPath.section] ;
collectionNews.delegate = self;
collectionNews.dataSource = self;
//cellTitle.text = dic[@"nf_title"];
if ([dic[@"newsfeed_images"] count] > 0)
[image setImageWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@",NEWS_IMAGES_URL,dic[@"newsfeed_images"][0][@"wi_image"] ] ]] ;
}
else if([collectionView isEqual:collectionBulletin]) {
// NSDictionary *mainDic = collectionViewDic[@"bulletin"];
// NSArray *array = mainDic[ _sortedbulletinArray[indexPath.section] ];
NSDictionary *dic = _sortedbulletinArray[indexPath.section] ;
collectionBulletin.delegate = self;
collectionBulletin.dataSource = self;
// cellTitle.text = dic[@"wb_title"];
if ([dic[@"bulletin_images"] count] > 0)
if ([dic[@"bulletin_images"][0][@"wi_type"] isEqualToString:@"video"]) {
[image setImageWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@",BULLETIN_IMAGES_URL,dic[@"ws_thumb"] ] ]] ;
}
else{
[image setImageWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@",BULLETIN_IMAGES_URL,dic[@"bulletin_images"][0][@"wi_image"] ] ]] ;
}
}
return cell;
}
#pragma mark UITableView Delegate, DataSource
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 195.0f;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [[collectionViewDic allKeys] count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"tableCell"];
cell.tag = indexPath.row;
UICollectionView *c = [cell.contentView viewWithTag:111];
//c.scrollEnabled = NO;
UICollectionViewFlowLayout *flow = [[UICollectionViewFlowLayout alloc]init];
flow.minimumLineSpacing = flow.minimumInteritemSpacing = 0.0f;
flow.itemSize = CGSizeMake([UIScreen mainScreen].bounds.size.width/1, c.bounds.size.height);
flow.scrollDirection = UICollectionViewScrollDirectionHorizontal;
// c.collectionViewLayout = flow;
UIView *header = [cell.contentView viewWithTag:1];
UIImageView *headerImage = [header viewWithTag:2];
UILabel *headerTitle = [header viewWithTag:3];
//NSLog(cell.tag);
switch (indexPath.row) {
case 0:
//NSLog(@"text");
headerImage.image = [UIImage imageNamed:@"Announcemets"];
//headerTitle.text = @"Announcments";
headerTitle.text=[Utilities getLocalizedStringForKey:@"Announcement"];
// NSLog(headerTitle.text);
collectionAnnouncments = c;
[collectionAnnouncments setCollectionViewLayout:flow];
collectionAnnouncments.delegate = self;
collectionAnnouncments.dataSource = self;
[collectionAnnouncments reloadData];
// NSLog(@"text");
break;
case 1:
headerImage.image = [UIImage imageNamed:@"News"];
headerTitle.text=[Utilities getLocalizedStringForKey:@"Bussiness Highlight"];
collectionNews = c;
[collectionNews setCollectionViewLayout:flow];
collectionNews.delegate = self;
collectionNews.dataSource = self;
[collectionNews reloadData];
//NSLog(@"text");
break;
case 2:
headerImage.image = [UIImage imageNamed:@"Bulletin"];
headerTitle.text=[Utilities getLocalizedStringForKey:@"Bulletin Board"];
collectionBulletin = c;
[collectionBulletin setCollectionViewLayout:flow];
collectionBulletin.delegate = self;
collectionBulletin.dataSource = self;
[collectionBulletin reloadData];
//NSLog(@"text");
break;
default:
break;
}
return cell;
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.destinationViewController isKindOfClass:[NewsListing class]]) {
NewsListing *c = segue.destinationViewController;
NSInteger row = ((UIButton *)sender).superview.superview.superview.tag;
if (row == 0) {
c.isAnnouncement = YES;
c.listingArray = collectionViewDic[@"announcement"];
}
else if (row == 1) {
c.isNews = YES;
c.listingArray = collectionViewDic[@"news"];
}
else if (row == 2) {
c.isBulletin = YES;
c.listingArray = collectionViewDic[@"bulletin"];
}
}
if ([segue.destinationViewController isKindOfClass:[NewsDetail class]]) {
NewsDetail *c = segue.destinationViewController;
UICollectionViewCell *cell = sender;
NSInteger row = ((UIButton *)sender).superview.superview.superview.tag;
if (row == 0) {
c.isAnnouncement = YES;
// NSDictionary *months = collectionViewDic[@"announcement"];
NSIndexPath *indexPath = [collectionAnnouncments indexPathForCell:cell];
// NSArray *month = months[[months allKeys][0] ];
NSArray *month = _sortedAnnArray;
c.detailDic = month[indexPath.section ];
}
else if (row == 1) {
c.isNews = YES;
// NSDictionary *months = collectionViewDic[@"news"];
NSIndexPath *indexPath = [collectionNews indexPathForCell:cell];
// NSArray *month = months[[months allKeys][0] ];
NSArray *month = _sortednewsArray;
c.detailDic = month[indexPath.section ];
}
else if (row == 2) {
c.isBulletin = YES;
// NSDictionary *months = collectionViewDic[@"bulletin"];
NSIndexPath *indexPath = [collectionBulletin indexPathForCell:cell];
// NSArray *month = months[[months allKeys][0] ];
NSArray *month = _sortedbulletinArray;
c.detailDic = month[indexPath.section ];
}
}
}
@end