ios - NavigationViewController 内的 TabViewController 内的 TableViewController 在运行时不显示导航标题和项目，但在 Storyboard 中显示

Question

我在带有导航标题和项目的 NavigationController 内的 TabViewController 内有一个 TableViewController，如下所示:

在运行时，导航栏在那里，但没有显示标题和添加项目，如下所示:(不要介意白色的空白，在我的设备中它工作，但在模拟器中没有 - 我在stackOverflow，但仍然没有解决方案)

另一个 TabBar 项目指向常规 UIView，它也不显示导航栏标题和栏项目。

我尝试添加另一个 UIView，它将成为 TabBarViewController 和 TableViewController 之间的中介，这解决了问题，但这让我失去了 TableViewController 中的 TabBar 功能。 我试图从我的 TableViewController 指向导航栏，但无法从那里访问“viewDidAppear”或 navigationBar 类等方法，因为它充当 tableView 的 Controller 。

TableViewController 类

import UIKit
import Parse
import ParseUI

class MeetsTableViewController: PFQueryTableViewController {

// Initialise the PFQueryTable tableview
override init(style: UITableViewStyle, className: String!) {
    super.init(style: style, className: className)
    //self.tableView.contentInset = UIEdgeInsetsZero;
}

required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)

    // Configure the PFQueryTableView
    self.parseClassName = "Meets";
    self.pullToRefreshEnabled = true;
    self.textKey="city";
    self.paginationEnabled = false;

}


// Define the query that will provide the data for the table view
override func queryForTable() -> PFQuery {
    let query = PFQuery(className: "Meets");
    query.orderByDescending("numberOfComming");
    return query;
}

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath, object: PFObject?) -> PFTableViewCell {

    var cell = tableView.dequeueReusableCellWithIdentifier("MyCell") as! CarTableViewCell!;

    if cell == nil {
        cell = CarTableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: "MyCell");
    }
    if let cityName = object?["city"] as? String{
        cell?.meetName?.text = "מפגש ב\(cityName)";
    }
    if let address = object?["address"] as? String{
        cell?.meetAddress?.text = address;
    }
    if let date = object?["date"] as? String{
        cell?.meetDate?.text = date;
    }
    if let time = object?["time"] as? String{
        cell?.meetTime?.text = time;
    }
    if let people = object?["numberOfComming"] as? Int{
        cell?.peopleAttending?.text = "\(people)";
    }

    if let thumbnail = object?["meetImg"] as? PFFile {

        thumbnail.getDataInBackgroundWithBlock{
            (imageData, error) -> Void in
            if error == nil {
                let image = UIImage(data: imageData!)
                cell.meetImage.image = image
            }
        }
    }

    return cell;
}

//delegate method
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    moveToDetail();
}

func moveToDetail(){
    let meetDetail=storyboard?.instantiateViewControllerWithIdentifier("meet") as! MeetDetailViewController;

    if let indexPath = self.tableView.indexPathForSelectedRow {
        let row = Int(indexPath.row);
        meetDetail.currentObject = (objects?[row] as? PFObject)
    }
    navigationController?.showViewController(meetDetail, sender: self);
}

}

TabViewController 类

import UIKit

class MeetingsTabViewControllerViewController: UITabBarController {

override func viewDidLoad() {

    super.viewDidLoad()
    // set red as selected background color
    let numberOfItems = CGFloat(tabBar.items!.count)
    let tabBarItemSize = CGSize(width: tabBar.frame.width / numberOfItems, height: tabBar.frame.height)
    tabBar.selectionIndicatorImage = UIImage.imageWithColor(UIColor(hexString: "#8c332b")!, size: tabBarItemSize).resizableImageWithCapInsets(UIEdgeInsetsZero);
    tabBar.backgroundImage = UIImage.imageWithColor(UIColor(hexString: "#c1463e")!, size: tabBarItemSize).resizableImageWithCapInsets(UIEdgeInsetsZero);
    // item selected color
    tabBar.tintColor = UIColor.whiteColor();
    // remove default border
    tabBar.frame.size.width = self.view.frame.width + 4;
    tabBar.frame.origin.x = -2;

}
}

extension UIImage {

class func imageWithColor(color: UIColor, size: CGSize) -> UIImage {
    let rect: CGRect = CGRectMake(0, 0, size.width, size.height);
    UIGraphicsBeginImageContextWithOptions(size, false, 0);
    color.setFill();
    UIRectFill(rect);
    let image: UIImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}

}

NavigationViewController 类

import UIKit

class MeetsNavigationViewController: UINavigationController {

override func viewDidLoad() {
    super.viewDidLoad()

}



}

Answer 1

已解决
似乎无法从标签栏子项向导航栏添加项目，但可以向标签栏 Controller 添加项目，所以这就是我所做的。我只是根据我选择的标签更改标题，我将这个方法添加到标签栏 Controller :

override func tabBar(tabBar: UITabBar, didSelectItem item: UITabBarItem) {
    if item.tag==0{
        navigationItem.title="המפגשים שלי";
    }else{
       navigationItem.title="כל המפגשים";
    }
}