如何使用故事板？

发布于 2024-12-11 21:10:17 字数 609 浏览 5 评论 0原文

我正在尝试使用故事板 segue 而不是 didSelectRowAtIndex。

这就是我所拥有的，但此方法无法识别indexPath.row。我可以用其他方法来做同样的事情吗？

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{
    SpecificExerciseTableViewController *upcomingViewController = segue.destinationViewController;
    if ([segue.identifier isEqualToString:@"Web"]) 
    {
        upcomingViewController.exerciseArray = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"exercises"];
        upcomingViewController.muscleName = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"muscleName"];
    }
}

原文

I'm trying to use storyboards segue instead of didSelectRowAtIndex.

This is what I have, but this method does not recognize indexPath.row. Is there an alternative I can use to do the same thing?

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{
    SpecificExerciseTableViewController *upcomingViewController = segue.destinationViewController;
    if ([segue.identifier isEqualToString:@"Web"]) 
    {
        upcomingViewController.exerciseArray = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"exercises"];
        upcomingViewController.muscleName = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"muscleName"];
    }
}

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梦里人 2024-12-18 21:10:17

除非您将该 indexPath 作为 ivar，否则作用域中不存在此类变量。

如果您想获取 UITableView 中所选行的索引路径，请使用：

- (NSIndexPath *)indexPathForSelectedRow

上面调整后的代码：

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{
    NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];

    SpecificExerciseTableViewController *upcomingViewController = segue.destinationViewController;
    if ([segue.identifier isEqualToString:@"Web"]) 
    {
        upcomingViewController.exerciseArray = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"exercises"];
        upcomingViewController.muscleName = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"muscleName"];
    }
}

Unless you have that indexPath as an ivar, no such variable exists in the scope.

If you would like to get the indexPath for the selected row in a UITableView use:

- (NSIndexPath *)indexPathForSelectedRow

The adjusted code for above:

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{
    NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];

    SpecificExerciseTableViewController *upcomingViewController = segue.destinationViewController;
    if ([segue.identifier isEqualToString:@"Web"]) 
    {
        upcomingViewController.exerciseArray = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"exercises"];
        upcomingViewController.muscleName = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"muscleName"];
    }
}

回复收藏 0 原文

硬不硬你别怂 2024-12-18 21:10:17

的示例

这个技巧效果很好，下面是我如何使用它将解析的元素拉入网页视图.h 文件

@property (strong, nonatomic) NSString *url;
@property (strong, nonatomic) UIWebView *webView;

.m 文件

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
    if ([segue.identifier isEqualToString:@"WebViewSegue"]) {

        WebViewController *webViewController = segue.destinationViewController;
        webViewController.url = (self.parseResults)[indexPath.row][@"link"];
        webViewController.title = (self.parseResults)[indexPath.row][@"title"];

    }
}

This trick works fine,heres an example of how I used it to pull parsed elements into a web view

.h file

@property (strong, nonatomic) NSString *url;
@property (strong, nonatomic) UIWebView *webView;

.m file

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
    if ([segue.identifier isEqualToString:@"WebViewSegue"]) {

        WebViewController *webViewController = segue.destinationViewController;
        webViewController.url = (self.parseResults)[indexPath.row][@"link"];
        webViewController.title = (self.parseResults)[indexPath.row][@"title"];

    }
}

回复收藏 0 原文

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