ios - didSelectRowAtIndexPath 没有推送新 View

Question

我在使用 didSelectRowAtIndexPath 时遇到问题 我知道在这一点上还有其他查询，但似乎没有一个能解决我的问题。基本上，tableview 会加载，但是当单击单元格时它不会执行任何操作，即它不会推送新的 xib。任何帮助都会很棒。

@implementation ViewController
@synthesize TableViewControl;
@synthesize tableList;

#pragma mark - View lifecycle

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.title = @"The Bird Watching App";
    // Do any additional setup after loading the view, typically from a nib.


    tableList = [[NSMutableArray alloc] initWithObjects:@"Map",@"My Profile",@"Bird Info", nil];



    TableViewControl.dataSource = self;
    TableViewControl.delegate = self;

}

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

    [tableView deselectRowAtIndexPath:indexPath animated:YES];

    if ([[ tableList objectAtIndex:indexPath.row] isEqual:@"Map"])
    {
        Map *map = [[Map alloc] initWithNibName:@"Map" bundle:nil];
        [self.navigationController pushViewController:map animated:YES];

    }

    else if ([[ tableList objectAtIndex:indexPath.row] isEqual:@"My Profile"])
    {
        MyProfile *myprofile = [[MyProfile alloc] initWithNibName:@"My Profile" bundle:nil];
        [self.navigationController pushViewController:myprofile animated:YES];
    }

    else if ([[ tableList objectAtIndex:indexPath.row] isEqual:@"Bird Info"])
    {
        BirdInfo *birdinfo = [[BirdInfo alloc] initWithNibName:@"Bird Info" bundle:nil];
        [self.navigationController pushViewController:birdinfo animated:YES];
    }

 }    


@end    

Answer 1

NSString 上的isEqual: 方法执行指针比较，而不是字符串实际内容之间的比较。您的 if 语句需要使用 isEqualToString: 来进行正确的比较。

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

    [tableView deselectRowAtIndexPath:indexPath animated:YES];

    if ([[ tableList objectAtIndex:indexPath.row] isEqualToString:@"Map"])
    {
        Map *map = [[Map alloc] initWithNibName:@"Map" bundle:nil];
        [self.navigationController pushViewController:map animated:YES];

    }

    else if ([[ tableList objectAtIndex:indexPath.row] isEqualToString:@"My Profile"])
    {
        MyProfile *myprofile = [[MyProfile alloc] initWithNibName:@"My Profile" bundle:nil];
        [self.navigationController pushViewController:myprofile animated:YES];
    }

    else if ([[ tableList objectAtIndex:indexPath.row] isEqualToString:@"Bird Info"])
    {
        BirdInfo *birdinfo = [[BirdInfo alloc] initWithNibName:@"Bird Info" bundle:nil];
        [self.navigationController pushViewController:birdinfo animated:YES];
    }

 }