iphone - 通过选择 UITableView 行调用新 View 错误

Question

根据 UITableView 中选择的行，我在拉取特定 ViewController 时遇到一些问题。我有一个表，其中包含 3 个部分，每个部分有 4 行。

当选择一行时，我将其设置为为每行调用一个新 View ，因此根据选择的行总共调用 12 个 View 。问题是，只有前 4 个 View 被调用，当我点击第 5 行时，它会显示一个新 View ，但会拉出第一个 View 。

我已经使用以下代码设置了我的 UITableView；

carbData = [[NSArray alloc] initWithObjects:@"What Are Carbs?",@"Why Do I Need Carbs?",@"Simple Vs. Complex",@"Fun Five Facts",nil];
    proteinData = [[NSArray alloc] initWithObjects:@"What is Protein?",@"Why Do I Need Protein?",@"Complete Vs. Incomplete",@"Fun Five Facts",nil];
    fatData = [[NSArray alloc] initWithObjects:@"What Are Fats?",@"Why Do I Need Fats?",@"Saturated Vs. Unsaturated",@"Fun Five Facts",nil];
    [self setTitle:@"Nutrition Table"];

}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 3;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return [self.carbData count];
    return [self.proteinData count];
    return [self.fatData count];
}

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

    static NSString *SimpleTableIdentifier = @"SimpleTableIdentifier"; 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier: SimpleTableIdentifier];

    if (cell == nil) { cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:SimpleTableIdentifier] autorelease];
    }   
    if(indexPath.section == 0)
        cell.text = [carbData objectAtIndex:indexPath.row];
    if(indexPath.section == 1)
        cell.text = [proteinData objectAtIndex:indexPath.row];
    if (indexPath.section == 2)
        cell.text = [fatData objectAtIndex:indexPath.row];
    return cell;
}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
    if(section == 0)
        return @"Carbohydrates";
    if (section ==1)
        return @"Protein";
    else if (section ==2)
        return @"Fats";
}

然后，我使用以下代码来确定当选择某一行时要调用哪个 View ；

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {


        if ([[carbData objectAtIndex:indexPath.row] isEqual:@"What Are Carbs?"]) {
            CarbsView1 *controller = [[CarbsView1 alloc] initWithNibName:@"CarbsView1" bundle:nil];
            controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
            [self presentModalViewController:controller animated:YES];
            [controller release];
        }
        if ([[carbData objectAtIndex:indexPath.row] isEqual:@"Why Do I Need Carbs?"]) {
            CarbsView2 *controller = [[CarbsView2 alloc] initWithNibName:@"CarbsView2" bundle:nil];
            controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
            [self presentModalViewController:controller animated:YES];
            [controller release];
        }
        if ([[carbData objectAtIndex:indexPath.row] isEqual:@"Simple Vs. Complex"]) {
            CarbsView3 *controller = [[CarbsView3 alloc] initWithNibName:@"CarbsView3" bundle:nil];
            controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
            [self presentModalViewController:controller animated:YES];
            [controller release];
        }
        if ([[carbData objectAtIndex:indexPath.row] isEqual:@"Fun Five Facts"]) {
            CarbsView4 *controller = [[CarbsView4 alloc] initWithNibName:@"CarbsView4" bundle:nil];
            controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
            [self presentModalViewController:controller animated:YES];
            [controller release];
        }
        if  ([[proteinData objectAtIndex:indexPath.row] isEqual:@"What is Protein?"]) {
            ProteinView1 *controller = [[CarbsView4 alloc] initWithNibName:@"ProteinView1" bundle:nil];
            controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
            [self presentModalViewController:controller animated:YES];
            [controller release];
        }

该应用程序编译和构建得很好，一切都按照我的意愿运行，但是当我查看使用的标题时，当我尝试选择“什么是蛋白质？”时是拉出“什么是碳水化合物？”的 View 。这是在第一个 if 语句中。

任何帮助将不胜感激

Answer 1

“什么是蛋白质？”位于第 1 部分第 0 行。“什么是碳水化合物？”位于第 0 节第 0 行。请注意，在 didSelectRowAtIndexPath 方法中，您不会在任何地方检查节号。因此，当您点击第 1 部分第 0 行时，您的第一个 if 语句将返回 true。我想你想要的东西更像是:

if (indexPath.section == 0) {
    if(indexPath.row == 0) {
        //present appropriate view controller
    } else if (indexPath.row == 1) {

    } else if (indexPath.row == 2) {

    } ...
} else if (indexPath.section == 1) {
    if (indexPath.row == 0) {

    } else if (indexPath.row == 1) {

    } ...
} ...