切换视图时presentViewController不加载标签栏

Question

当我从designworks.xib（designworks.m，designworks.h）切换到MainStoryboard FirstViewController（它是一个标签栏控制器，第一个控制器在标签外）时，它会加载故事板上的内容，但它不会加载底部的标签栏导航。

- (IBAction)backToHome:(id)sender {
    /*
    FirstViewController *fvc = [[FirstViewController alloc] initWithNibName:nil bundle:nil];
    [self presentViewController:fvc animated:YES completion:nil];
     */
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    FirstViewController *fvc = [storyboard instantiateViewControllerWithIdentifier:@"FirstViewController"];
    fvc.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
    [self presentViewController:fvc animated:YES completion:nil];
}

Answer 1

检查你是否以这种方式完成了

将视图控制器添加到tabbarcontroller。

确保已在.h文件中添加此内容

@property (nonatomic, strong) UITabBarController *tabController;

在.m文件中合成tabController和

FirstViewController *fistView = [[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil];
SecondViewController *secondView = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
ThirdViewController *thirdView = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil];

NSArray *viewControllersArray = [[NSArray alloc] initWithObjects:fistView, secondView, thirdView, nil];

self.tabController = [[UITabBarController alloc] init];
[self.tabController setViewControllers:viewControllersArray animated:YES];

现在将其呈现为模态

[self presentViewController:self.tabController animated:YES completion:nil];

Answer 2

如果您的第一个视图控制器位于标签栏控制器内，请改为使用标签栏控制器。