presentViewController在切換視圖時不加載標籤欄

Question

當我從designworks.xib（designworks.m，designworks.h）切換到MainStoryboard FirstViewController（這是一個標籤欄控制器，第一個控制器不在標籤中）時，它加載內容在故事板上，但它不會加載在底部的標籤欄導航中。

- (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

如果您的第一個視圖控制器位於選項卡欄控制器內部，請改用選項卡欄控制器。

Answer 2

檢查U是否已經以這種方式

要視圖控制器添加到tabbarcontroller做到了。

確保您已在.h文件中

@property (nonatomic, strong) UITabBarController *tabController; 

加入這個在您的.m文件合成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]; 

現在提出它作爲模式

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