Question

我对如何将选定的objectAtIndexPath传递到详细视图控制器感到困惑。根视图控制器是运动员的表格视图。当选择时，我希望详细视图控制器（将被推入导航堆栈的控制器）知道所有关于刚刚选择的内容，例如所有的属性，名称，电话等我只是对通过什么感到困惑。这就是我所拥有的。

tableview.h

//how I populate the table
    -(void)viewWillAppear:(BOOL)animated{
        AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
        _managedObjectContext = [appDelegate managedObjectContext];

        NSFetchRequest *request = [[NSFetchRequest alloc] init];
        NSEntityDescription *athlete = [NSEntityDescription entityForName:@"Athlete" inManagedObjectContext:_managedObjectContext];
        [request setEntity:athlete];
        NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"last" ascending:YES];
        NSArray *sortDescriptors = [[NSArray alloc]initWithObjects:sortDescriptor, nil];
        [request setSortDescriptors:sortDescriptors];

        NSError *error = nil;
        NSMutableArray *mutableFetchResults = [[_managedObjectContext executeFetchRequest:request error:&error] mutableCopy];
        if (mutableFetchResults == nil){
            //handle error
        }
        [self setAthleteArray:mutableFetchResults];
        [self.tableView reloadData];
    }


//how I try to send, and fail
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
    NSString *segueIdentifier = [segue identifier];
    if ([segueIdentifier isEqualToString:@"setAthlete"])
    {
        UITableViewCell *cell = (UITableViewCell*) sender;
        NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
        /*
        Athlete *athlete = [self.athleteArray objectAtIndexPath:indexPath];
        I cant send the array, what do I do?
    }
}

我没有获取结果视图控制器顺便说一句。并谢谢。

Answer 1

Athlete.h

@interface Athlete : UIViewController
{
    NSArray *arrayList;
}

@property(nonatomic, retain)NSArray *arrayList;

@end

在.m

中合成arraylist

@synthesize arrayList;

在 tableview.h

中

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
    NSString *segueIdentifier = [segue identifier];
    if ([segueIdentifier isEqualToString:@"setAthlete"])
    {
        UITableViewCell *cell = (UITableViewCell*) sender;
        NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];

        Athlete *athlete = [[Athlete alloc] initWithNibName:@"Athlete" bundle:nil];
        athlete.arrayList= [self.athleteArray objectAtIndexPath:indexPath];


    }
}

尝试此操作以获取更多详细信息，请查看此Passing Data between View Controllers

视图控制器之间的核心数据

1 个答案: