一些的UITableView

Question

numOfRows方法的問題，這是我的UITableViewDateSource代碼：

#import "TableViewDataSource.h" 


@implementation TableViewDataSource 

@synthesize tableView; 
@synthesize tableCell; 
@synthesize LHfetchedResultsController; 
@synthesize numberOfRows; 
@synthesize dataTemp; 
@synthesize paused; 

-(id)initWithTableView:(UITableView *) tableView 
{ 
    self = [super init]; 
    if (self) { 
     self.tableView = tableView; 
     self.tableView.dataSource = self; 
     self.tableView.delegate = self; 
    } 
    return self; 
} 
-(void)dateSourceWithChineseNewestVideosFetchedResultsController 
{ 
    self.tableCell = [TableCellModel getCellOfFreeChampionsList]; 
    [self setChineseNewestVideosLHFetchedResultsController]; 
} 

-(UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    [self configCellData:indexPath cell:self.tableCell]; 

    // Configure the cell with data from the managed object. 
    return self.tableCell; 
} 

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
    if ([[self.LHfetchedResultsController sections] count] > 0) { 
     id <NSFetchedResultsSectionInfo> sectionInfo = [[self.LHfetchedResultsController sections] objectAtIndex:section]; 
     self.numberOfRows = [sectionInfo numberOfObjects]; 

//  return self.numberOfRows; 
     return 1; 
    } else 
     return 0; 
} 

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
{ 
    return [[self.LHfetchedResultsController sections] count]; 
} 
-(void)configCellData:(NSIndexPath *)indexPath cell:(id)cell 
{ 
    NSLog(@"DataSourceTempCount is %lu",(unsigned long)self.dataTemp.count); 
// NSInteger indexNum = indexPath.row; 
// ChineseNewestVideos * Video = [self.dataTemp objectAtIndex:indexNum]; 
    ChineseNewestVideos * Video = [self.LHfetchedResultsController objectAtIndexPath:indexPath]; 
    UITextView * textView = [self.tableCell viewWithTag:11]; 
    textView.text = Video.title; 

    UILabel * la = [self.tableCell viewWithTag:12]; 
    la.text = [NSString stringWithFormat:@"Data Count is %lu",(unsigned long)self.numberOfRows]; 
    if (indexPath.row %2 == 0) { 

     self.tableCell.backgroundColor = [UIColor greenColor]; 
    }else 
    { 
     self.tableCell.backgroundColor = [UIColor brownColor]; 
    } 
} 

-(void)setLHFetchedResultsController:(NSFetchedResultsController *)fetchedResultsController 
{ 
    self.LHfetchedResultsController = fetchedResultsController; 
    self.LHfetchedResultsController.delegate = self; 
    NSError * err; 
    if (![self.LHfetchedResultsController performFetch:&err]) { 
     //啓動 
     NSLog(@"Unresolved error : %@, %@",err,[err userInfo]); 
     exit(-1); 
    } 
} 

-(void)setChineseNewestVideosLHFetchedResultsController 
{ 
    NSManagedObjectContext * context = ((AppDelegate*)[[UIApplication sharedApplication] delegate]).persistentContainer.viewContext; 
    NSFetchRequest * request = [ChineseNewestVideos fetchRequest]; 
    NSEntityDescription * testEntity = [NSEntityDescription entityForName:@"ChineseNewestVideos" inManagedObjectContext:context]; 
    request.entity = testEntity; 
    NSSortDescriptor * sort = [[NSSortDescriptor alloc] initWithKey:@"createdate" ascending:NO]; 
    [request setSortDescriptors:[NSArray arrayWithObject:sort]]; 
// [request setFetchBatchSize:20]; 
    NSFetchedResultsController * ChineseNewestVideosLHFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:request managedObjectContext:context sectionNameKeyPath:nil cacheName:nil]; 
    [self setLHFetchedResultsController:ChineseNewestVideosLHFetchedResultsController]; 
} 

的TableView是視圖控制器的屬性 數據沒有問題，但表顯示已經問題 從-(void)setChineseNewestVideosLHFetchedResultsController

時啓動我設置了不同的退貨-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section，顯示不同 這樣：

當退貨時1 when return one

時返回2 when return two

時返回3 [當返回3] [3]

時返回4個或更多 [當返回四個或更多] [4]

顯示總是像這樣，當我放棄時，textview將突然消失 誰知道發生了什麼？

Answer 1

你需要初始化每個單元格cellForRowAtIndexPath這就是爲什麼只有一個tableview單元格。您需要爲每一行「創建」單元格。因此，擺在

-(UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ 
    TableCellModel *cell = [TableCellModel getCellOfFreeChampionsList]; 
    [self configCellData:indexPath cell:self.tableCell]; 
    return cell; 
}