テーブルビューにデータを表示できません

Question

私はサーバからデータを取得していて、それをtableviewに表示できません... jsonarrayという変数にデータを格納していますが、jsonarray.countをゼロ以外の完了ハンドラとして表示しています。 （行の番号はnumberOfRowsInSection）。

@interface Staffdir() 
@property(nonatomic,strong) NSMutableArray* jsonarr; 
@end 

@implementation Staffdir 

- (void)viewDidLoad { 

    _namesarr=[[NSMutableArray alloc]init]; 
    _occupationarr=[[NSMutableArray alloc]init]; 
    _Phonearr=[[NSMutableArray alloc]init]; 
    _faxnumarr=[[NSMutableArray alloc]init]; 

    NSMutableURLRequest*req=[[NSMutableURLRequest alloc]init]; 
    NSURL*url=[NSURL URLWithString:@"http:someurl"]; 
    [req setURL:url]; 


     [[[NSURLSession sharedSession]dataTaskWithRequest:req completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { 
      self.jsonarr = [NSJSONSerialization JSONObjectWithData:data 
                  options:kNilOptions 
                  error:&error]; 

      NSDictionary *dict=[[NSDictionary alloc]init]; 

      for(int i=0;i<self.jsonarr.count;i++){ 

       dict=[self.jsonarr objectAtIndex:i]; 

       [_namesarr addObject:[dict objectForKey:@"Name"]]; 
       [_faxnumarr addObject:[dict objectForKey:@"Fax_Number"]]; 
       [_Phonearr addObject:[dict objectForKey:@"Phone"]]; 
       [_occupationarr addObject:[dict objectForKey:@"Job_Title"]]; 
      } 
     }] resume]; 


    [self.tableview reloadData]; 
    [super viewDidLoad]; 

    // Do any additional setup after loading the view. 
} 

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ 
    return self.jsonarr.count; 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ 

    Staffcustom *cell= [tableView dequeueReusableCellWithIdentifier:@"cell"]; 

    if (cell == nil) { 
     cell = [[Staffcustom alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"]; 
    } 

    cell.namelabel.text=[_namesarr objectAtIndex:indexPath.row]; 
    cell.namelabel.textColor = [UIColor blueColor]; 
    cell.occupationlabel.textColor=[UIColor colorWithRed:0.5 green:0.0 blue:1 alpha:1.0]; 
    cell.occupationlabel.text=[_occupationarr objectAtIndex:indexPath.row]; 
    cell.phonelabel.text=@"12345678"; 
    cell.faxnumlabel.text=@"12345678"; 

    UIView * additionalSeparator = [[UIView alloc] initWithFrame:CGRectMake(0,cell.frame.size.height-1,cell.frame.size.width,0.1)]; 
    additionalSeparator.backgroundColor = [UIColor blueColor]; 

    [cell addSubview:additionalSeparator]; 

    return cell; 
} 

- (IBAction)Btn_Back:(id)sender 
{ 
    [self dismissViewControllerAnimated:YES completion:nil]; 
} 

- (void)didReceiveMemoryWarning { 
    [super didReceiveMemoryWarning]; 
    // Dispose of any resources that can be recreated. 
} 

Answer 1

これを試してみてください。

uはまだ私を更新し、エラーが直面している場合は、それをチェック

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"]; 

    if(cell == nil){ 
     cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"Cell"]; 

     if ([response count] > 0) { 
      //creating the status lable 
      UILabel * name = [[UILabel alloc]initWithFrame:CGRectMake(80*XScale, 25*YScale, XScale*200, YScale*15)]; 

      name.font = [UIFont fontWithName:@"STHeitiSC-Medium" size:12.0f]; 
      NSString *time=[[response objectAtIndex:indexPath.row]valueForKey:@“name”]; 
      [cell.contentView addSubview:name]; 

[json PostMethod:method parameters:parameter success:^(NSDictionary *responseDict){ 

     response=[[NSMutableArray alloc]init]; 
     for (int i=0; i < [[responseDict valueForKey:@"transactions"] count]; i++) { 
      [response addObject:[[responseDict valueForKey:@"transactions"]objectAtIndex:i]]; 
     } 

     [self.tableView reloadData]; 

TableviewCellフォーマットにサーバーからデータをgeting。私は、もし役に立つなら、あなたは簡単な問題を解決するのに役立ちます。