ios - 细节 View 加载两次

Question

嗯..

我在我的应用程序中设置了表格 View - 详细 View 。

主视图使用常规代码将数据传递给详细 View

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {            
    self.savedSelectedIndexPath = [self.tableView indexPathForSelectedRow];
    [self performSegueWithIdentifier:@"showDetail" sender:self];
}

-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{

    if ([segue.identifier isEqualToString:@"showDetail"]){

        NSIndexPath *indexPath =  self.savedSelectedIndexPath; //get the index path of the row selected        
        Event *event = [self.eventList objectAtIndex:indexPath.row]; // now get the content of that row
        EventDetail *eventDetailView = (EventDetail *)segue.destinationViewController;

        eventDetailView.eventDetail = event;
    }
}

但由于某种原因，详细 View 被加载了两次。 第一次加载看起来很正常，后退按钮指向主视图。但是当第一次加载完成时，它再次重新加载 View ，后退按钮指向第一次加载..

当我在 ViewDidLoad 中运行 NSLog 时，我可以看到 NSLog 被记录了两次...

我不确定为什么要这样做..

这是我在详细 View 中的 ViewDidLoad 中的内容:

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    NSLog(@"page loaded");
    self.eventTitleIB.text = eventDetail.eventTitle;
    self.eventLocationIB.text = eventDetail.address;
    self.eventTimeIB.text = eventDetail.eventTime;
    self.eventPointsIB.text = eventDetail.points;
    self.pointRuleIB.text = [NSString stringWithFormat: @"Single Event is worth %@ points", eventDetail.points];
    self.eventDetailIB.text = eventDetail.eventDescription;

    NSLog(@"content loaded");
}

谢谢大家的帮助!!

Answer 1

tableviewcell 和 detailviewcontroller 之间是否有 segue 链接？在这种情况下，删除 [self performSegueWithIdentifier:@"showDetail"sender:self];