Ios 不在动态UITableView中插入值

我正在尝试创建一个动态的应用程序，它使用API自动更新。问题是它确实将正确的部分与正确的装置连接起来，并且装置似乎在不同的部分中重复。为什么不将节日期与装置连接起来

首先，我有一个fixture数组，其中包含所有fixture

[fixtures addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:date,@"date", time, @"time", competition_id,@"competition_id", home, @"home", away, @"away", nil]];

然后我有一个数组，包含所有日期，没有重复项，按日期排序，称为ReverseArray：

NSSortDescriptor *descriptor = [[NSSortDescriptor alloc] initWithKey:@"self" ascending:NO];
NSArray *descriptors = [NSArray arrayWithObject: descriptor];

NSArray *reverseOrder = [dateArray sortedArrayUsingDescriptors:descriptors];

reversedArray = [[reverseOrder reverseObjectEnumerator] allObjects];

然后我就有了自己的观点

-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{


    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.frame.size.width, 22)];
    /* Create custom view to display section header... */
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10, 0, tableView.frame.size.width, 22)];
    [label setFont:[UIFont boldSystemFontOfSize:14]];
    [label setTextColor:[UIColor whiteColor]];
    NSString *dateString = [NSString stringWithFormat:@"%@",[reversedArray objectAtIndex:section]];
    NSString *newString = [dateString substringToIndex:[dateString length]-15];

    NSString *string =[NSString stringWithFormat:@"%@",newString];

    [label setText:string];
    [view addSubview:label];

    [view setBackgroundColor:[UIColor colorWithRed:13/255.0f green:78/255.0f blue:102/255.0f alpha:1.0f]];

    return view;
}

截面法中的行数

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    NSString *dateString = [NSString stringWithFormat:@"%@",[reversedArray objectAtIndex:section]];

    NSLog(@"%@ = %@", [dateString substringToIndex:[dateString length]-15], [[fixtures objectAtIndex:section] valueForKey:@"date"]);

    NSArray *filteredArray = [fixtures filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"date == %@",[dateString substringToIndex:[dateString length]-15]]];
    return filteredArray.count;

}

cellForRowAtIndexPath方法：

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

{

    FixtureCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
if (cell == nil) {

    cell = [[FixtureCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"cell"];
    cell.homeTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"home" ];
    cell.awayTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"away" ];

}

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

{

   FixtureCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
if (cell == nil)
{

cell = [[FixtureCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"cell"];
}
cell.homeTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"home"];
cell.awayTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"away"];

return cell;

}

---

从你的if语句中去掉这个代码

cell.homeTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"home" ];
cell.awayTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"away" ];

您正在重用单元格，因此条件cell=nil将始终不为真

---

还可以使用indexPath.section for了解填充单元格时应获取哪些数据

更改此方法cellForRowAtIndexPath方法：

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

{

    FixtureCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
if (cell == nil) {

    cell = [[FixtureCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"cell"];
    cell.homeTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"home" ];
    cell.awayTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"away" ];

}

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

{

   FixtureCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
if (cell == nil)
{

cell = [[FixtureCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"cell"];
}
cell.homeTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"home"];
cell.awayTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"away"];

return cell;

}

---

如果（cell==nil）重用单元标识符在单元创建后未进入循环，则在外部分配标签值

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

    {

        FixtureCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
    if (cell == nil) {

        cell = [[FixtureCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"cell"];
    }
        cell.homeTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"home" ];
        cell.awayTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"away" ];
    return cell;
    }

---

如果您使用的是自定义单元格，请尝试以下操作

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

static NSString *simpleTableIdentifier = @"FixtureCell";

FixtureCell *cell = (FixtureCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil)
{
    NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"FixtureCell" owner:self options:nil];
    cell = [nib objectAtIndex:0];

}         

cell.homeTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"home"];
cell.awayTeamLabel.text = [[fixtures objectAtIndex:indexPath.row] objectForKey:@"away"];

return cell;
}

---

如果（cell==nil）{cell=[[FixtureCell alloc]initWithStyle:UITableViewCellStyleSubtitle重用标识符：@“cell”]；}

（括号末尾），则

cell.homeTeamLabel.text

，等等。并不是说您的代码似乎没有返回

单元格

。发送到实例的未识别选择器这给了我发送到实例的未识别选择器。为什么在每个单元格文本中indexpath.row两次？r u使用自定义表单元格？？