在iOS5中切换ViewControllers与UISegmentedControl在iOS5中切换

我想很简单的东西，但不知何故，我无法得到它的工作。 所有我尝试做的是使用UISegmentedControl，你可以看到它例如在亮点标签的App Store应用2个视图控制器之间的切换。

我使用的iOS5和故事。

这里是我的Storyboad阵容：

所以我有一个根视图控制器和两个UITableViews - 这2个TableViews我想切换。

下面是实现文件的样子

#import "SegmentedLocationViewController.h"
#import "PastEventsLocationViewController.h"
#import "FutureEventsLocationViewController.h"

@interface SegmentedLocationViewController()
@property (weak, nonatomic) IBOutlet UISegmentedControl *segmentedControl;
@property (strong, nonatomic) NSArray *viewControllers;
@end


@implementation SegmentedLocationViewController

@synthesize segmentedControl = _segmentedControl;
@synthesize viewControllers = _viewControllers;

- (IBAction)indexDidChangeForSegmentedControl:(UISegmentedControl*)segmentedControl
{
    NSLog(@"index: %d", segmentedControl.selectedSegmentIndex);
}

- (void)setupViewControllers
{
    PastEventsLocationViewController *pastEventsLocationViewController = [[PastEventsLocationViewController alloc] initWithStyle:UITableViewStylePlain];
    FutureEventsLocationViewController *futureEventsLocationViewController = [[FutureEventsLocationViewController alloc] initWithStyle:UITableViewStylePlain];

    self.viewControllers = [NSArray arrayWithObjects:pastEventsLocationViewController, futureEventsLocationViewController, nil];
}

- (void)setupUI
{
    [self.segmentedControl addTarget:self action:@selector(indexDidChangeForSegmentedControl:) forControlEvents:UIControlEventValueChanged];
}

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
    [super viewDidLoad];
    [self setupViewControllers];
    [self setupUI];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return YES;
}

@end

我可以触发切换事件，并可以记录当前选定的指数。 但我没有任何想法哪里何去何从。

也许有人可以把我的注意力朝某一方向...？

Answer 1:

此代码的工作非常好你的目的，我用它为我的新的应用程序之一。
它采用了新的UIViewController遏制API，允许你自己UIViewControllers内UIViewControllers没有的手动进给的东西，如麻烦viewDidAppear:

- (void)viewDidLoad {
    [super viewDidLoad];
    // add viewController so you can switch them later. 
    UIViewController *vc = [self viewControllerForSegmentIndex:self.typeSegmentedControl.selectedSegmentIndex];
    [self addChildViewController:vc];
    vc.view.frame = self.contentView.bounds;
    [self.contentView addSubview:vc.view];
    self.currentViewController = vc;
}
- (IBAction)segmentChanged:(UISegmentedControl *)sender {
    UIViewController *vc = [self viewControllerForSegmentIndex:sender.selectedSegmentIndex];
    [self addChildViewController:vc];
    [self transitionFromViewController:self.currentViewController toViewController:vc duration:0.5 options:UIViewAnimationOptionTransitionFlipFromBottom animations:^{
        [self.currentViewController.view removeFromSuperview];
        vc.view.frame = self.contentView.bounds;
        [self.contentView addSubview:vc.view];
    } completion:^(BOOL finished) {
        [vc didMoveToParentViewController:self];
        [self.currentViewController removeFromParentViewController];
        self.currentViewController = vc;
    }];
    self.navigationItem.title = vc.title;
}

- (UIViewController *)viewControllerForSegmentIndex:(NSInteger)index {
    UIViewController *vc;
    switch (index) {
        case 0:
            vc = [self.storyboard instantiateViewControllerWithIdentifier:@"FooViewController"];
            break;
        case 1:
            vc = [self.storyboard instantiateViewControllerWithIdentifier:@"BarViewController"];
            break;
    }
    return vc;
}

我从雷Wenderlichs本书的第22章这个东西的教程iOS5的 。 不幸的是我没有一个公共链接到一个教程。 但是有一个WWDC 2011的视频标题为“实施的UIViewController遏制”

编辑

self.typeSegmentedControl是您的插座UISegmentedControl

self.contentView是你的容器视图出口

self.currentViewController仅仅是我们用来存储我们目前使用的财产UIViewController

Answer 2:

It's Matthias Bauch solution, but thought of sharing it in Swift anyway! Edit: Adding a link to a Swift 2.0 ready made demo app. https://github.com/ahmed-abdurrahman/taby-segmented-control

var currentViewController: UIViewController?
@IBOutlet weak var contentView: UIView!
@IBOutlet weak var segmentedControl: UISegmentedControl!

@IBAction func switchHappeningTabs(sender: UISegmentedControl) {
    if let vc = viewControllerForSelectedSegmentIndex(sender.selectedSegmentIndex) {
        self.addChildViewController(vc)
        self.transitionFromViewController(self.currentViewController!, toViewController: vc, duration: 0.5, options: UIViewAnimationOptions.TransitionFlipFromRight, animations: {
            self.currentViewController!.view.removeFromSuperview()
            vc.view.frame = self.contentView.bounds
            self.contentView.addSubview(vc.view)
            }, completion: { finished in
                vc.didMoveToParentViewController(self)
                self.currentViewController!.removeFromParentViewController()
                self.currentViewController = vc
            }
        )        
    }
}

override func viewDidLoad() {
    super.viewDidLoad()

    if let vc = self.viewControllerForSelectedSegmentIndex(self.segmentedControl.selectedSegmentIndex) {
        self.addChildViewController(vc)
        self.contentView.addSubview(vc.view)
        self.currentViewController = vc
    }
}

func viewControllerForSelectedSegmentIndex(index: Int) -> UIViewController? {
    var vc: UIViewController?
    switch index {
    case 0:
            vc = self.storyboard?.instantiateViewControllerWithIdentifier("FooViewController") as? UIViewController
    case 1:
            vc = self.storyboard?.instantiateViewControllerWithIdentifier("BarViewController") as? UIViewController
    default:
        return nil
    }

    return vc
}

Answer 3:

对于有人要实现迅速同

import UIKit

class HomeController: UIViewController {

    var currentViewController:UIViewController?

    @IBOutlet weak var homeController: UIView!

    override func viewDidLoad() {
        super.viewDidLoad()

        let initialController:UIViewController = self.viewControllerForSegmentedIndex(0)

        self.addChildViewController(initialController)

        initialController.view.frame = self.homeController.bounds
        self.homeController.addSubview(initialController.view)
        self.currentViewController = initialController

    }

    @IBAction func segmentChanged(sender: UISegmentedControl) {

        let viewCOntroller:UIViewController = viewControllerForSegmentedIndex(sender.selectedSegmentIndex)

        self.addChildViewController(viewCOntroller)

        self.transitionFromViewController(self.currentViewController!, toViewController: viewCOntroller, duration: 0.5, options: UIViewAnimationOptions.TransitionFlipFromBottom, animations: {
            self.currentViewController?.view.removeFromSuperview()
            viewCOntroller.view.frame = self.homeController.bounds
            self.homeController.addSubview(viewCOntroller.view)

            }, completion:{ finished in

                viewCOntroller.didMoveToParentViewController(self)
                self.currentViewController?.removeFromParentViewController()
                self.currentViewController = viewCOntroller

        })

    }
    func viewControllerForSegmentedIndex(index:Int) -> UIViewController {
        var viewController:UIViewController?
        switch index {
        case 0:
            viewController = self.storyboard?.instantiateViewControllerWithIdentifier("StoryboardIdForFirstController")
            break
        case 1:
            viewController = self.storyboard?.instantiateViewControllerWithIdentifier("StoryboardIdForSecondController")
            break
        case 2:
            viewController = self.storyboard?.instantiateViewControllerWithIdentifier("StoryboardIdForThirdController")
            break
        default:
            break
        }
        return viewController!
    }
}

故事板视图

Answer 4:

A是根视图控制器，和B，C是子视图控制器。 当您单击段，添加子视图控制器。

结果

设计

码

import UIKit

class SegmentViewController: UIViewController {

    @IBOutlet weak var containerView: UIView!

    var leftViewController: LeftViewController!
    var rightViewController: RightViewController!


    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        if let sb = storyboard {
            leftViewController = sb.instantiateViewControllerWithIdentifier("leftViewController") as! LeftViewController

            switchViewController(from: nil, to: leftViewController)
        } else {
            print("storyboard is nil")
        }
    }

    func switchViewController(from fromVC: UIViewController?, to toVC: UIViewController?) {
        if let from = fromVC {
            from.willMoveToParentViewController(nil)
            from.view.removeFromSuperview()
            from.removeFromParentViewController()
        } else {
            print("fromVC is nil")
        }

        if let to = toVC {
            self.addChildViewController(to)
            to.view.frame = CGRectMake(0, 0, containerView.frame.width, containerView.frame.height)
            self.containerView.insertSubview(to.view, atIndex: 0)
            to.didMoveToParentViewController(self)
        } else {
            print("toVC is nil")
        }
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.

        removeViewController()
    }

    func removeViewController() {
        if let leftVC = leftViewController {
            if let _ = leftVC.parentViewController {
                print("leftVC is using")
            } else {
                print("set leftVC = nil")
                leftViewController = nil
            }
        }

        if let rightVC = rightViewController {
            if let _ = rightVC.parentViewController {
                print("rightVC is using")
            } else {
                print("set rightVC = nil")
                rightViewController = nil
            }
        }
    }


    @IBAction func onSegmentValueChanged(sender: UISegmentedControl) {
        UIView.beginAnimations("xxx", context: nil)
        UIView.setAnimationDuration(0.4)
        UIView.setAnimationCurve(.EaseInOut)

        switch sender.selectedSegmentIndex {
        case 0:
            UIView.setAnimationTransition(.FlipFromRight, forView: self.containerView, cache: true)

            if let leftVC = leftViewController {
                switchViewController(from: rightViewController, to: leftVC)
            } else {
                if let sb = storyboard {
                    leftViewController = sb.instantiateViewControllerWithIdentifier("leftViewController") as! LeftViewController
                    switchViewController(from: rightViewController, to: leftViewController)
                } else {
                    print("storyboard is nil")
                }
            }
        default:
            UIView.setAnimationTransition(.FlipFromLeft, forView: self.containerView, cache: true)

            if let rightVC = rightViewController {
                switchViewController(from: leftViewController, to: rightVC)
            } else {
                if let sb = storyboard {
                    rightViewController = sb.instantiateViewControllerWithIdentifier("rightViewController") as! RightViewController
                    switchViewController(from: leftViewController, to: rightViewController)
                } else {
                    print("storyboard is nil")
                }
            }
        }

        UIView.commitAnimations()
    }
}

Answer 5:

您可以在导航控制器嵌入您的初始视图控制器。 做到这一点通过在故事板中选择视图控制器，然后编辑器 - >嵌入在 - >导航控制器。

在您的indexDidChangeForSegmentedControl：方法，你只需按下相应的视图控制器导航堆栈：

- (IBAction)indexDidChangeForSegmentedControl:(UISegmentedControl*)segmentedControl
{
    [self.navigationController pushViewController:[self.viewControllers objectAtIndex:[segmentedControl.selectedIndex]] animated:YES];

}

但是你的做法让没有太多意义的，当你使用故事板。 我不知道你是否可以在一个分段控制按钮线了使用塞格斯视图控制器。 就试一试吧。

Answer 6:

我结束了使用导航控制器来实现类似的功能。

import UIKit

class BaseViewController: UIViewController {

  var currentSegmentIndex = 0

  @IBOutlet weak var segmentedControl: UISegmentedControl!

  override func viewDidLoad() {
    super.viewDidLoad()

    segmentedControl.selectedSegmentIndex = currentSegmentIndex
  }

  @IBAction func segmentedControlChanged(_ sender: Any) {
    let idx = segmentedControl.selectedSegmentIndex
    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    switch idx {
    case 0:
      let vc = storyboard.instantiateViewController(
        withIdentifier: "Foo") as! FooViewController
      vc.currentSegmentIndex = 0
      navigationController?.viewControllers = [vc]
      break
    case 1:
      let vc = storyboard.instantiateViewController(
        withIdentifier: "Bar") as! BarViewController
      vc.currentSegmentIndex = 1
      navigationController?.viewControllers = [vc]
      break
    default:
      break
    }
  }
}

文章来源: Switching ViewControllers with UISegmentedControl in iOS5