ios - 在 ios 中以横向模式显示 iPad 的侧边栏，如 facebook

Question

我有一个 iPad 应用程序，我想在其中实现侧边栏功能，就像我们在 facebook 应用程序中一样。

我正在使用这个 Demo为此。

有了这个，我已经成功地实现了边栏功能并且它运行良好，但是我的第一个 View 并没有很好地显示我。

下面是截图。

正如您从屏幕截图中看到的那样，有一个黑色背景，当应用程序启动时，我的整个 View 并未全屏显示。

它应该像下面这样。

同样在单击按钮时，侧 View 显示如下。

它应该很小，因为我采用了宽度 = 300 和高度 = 768 的 View 大小。

但它显示的比那个大。

这是我在 appdelegate 中更改的代码。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    [self createEditableCopyOfDatabaseIfNeeded];

    // Override point for customization after application launch.
    self.viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];

    UINavigationController *navController = [[UINavigationController alloc]initWithRootViewController:self.viewController];

    SlidingViewController *slidingView = [[SlidingViewController alloc]initWithNibName:@"SlidingViewController" bundle:nil];

    self.slideMenuController = [[SlideMenuController alloc] initWithCenterViewController:navController];
    self.slideMenuController.leftViewController = slidingView;

    self.window.rootViewController = navController;
    [self.window makeKeyAndVisible];
   return YES;
}

- (IBAction)sideBarPressed:(id)sender
{
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    if (appDelegate.slideMenuController.position == TKSlidePositionCenter) {
        [appDelegate.slideMenuController presentLeftViewControllerAnimated:YES];
    } else {
        [appDelegate.slideMenuController presentCenterViewControllerAnimated:YES];
    }
}

我希望我的 iPad 仅在横向模式下使用它。

请告诉我这里有什么问题？

我被困在这里很长一段时间了。

我们将不胜感激。

提前致谢。

Answer 1

所以你需要使用 UISplitViewController 更好

 //in app delegate do like this
 //in appDelegate.h file 
 #import <UIKit/UIKit.h>

 @interface AppDelegate : UIResponder <UIApplicationDelegate>

 @property (strong, nonatomic) UIWindow *window;
 @property (nonatomic, retain) UISplitViewController *splitViewCOntroller; 
 @end


 //in appDelegate.m file
 #import "AppDelegate.h"
 #import "SplitMasterViewController.h"  //create a UITableviewController 
 #import "SplitViewDetailController.h"  //create a UIViewController

  @implementation AppDelegate
  @synthesize splitViewCOntroller = _splitViewCOntroller;

  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
   {
      // Override point for customization after application launch.
      SplitMasterViewController *masterController  = [[SplitMasterViewController alloc]initWithNibName:@"SplitMasterViewController" bundle:nil]; //this is the master menu controller

     UINavigationController *masterNavController = [[UINavigationController alloc]initWithRootViewController:masterController];

     SplitViewDetailController *detailViewController = [[SplitViewDetailController alloc]initWithNibName:@"SplitViewDetailController" bundle:nil]; //this is the master detail controller


     UINavigationController *detailNavController = [[UINavigationController alloc]initWithRootViewController:detailViewController];
masterController.detailViewController = detailViewController;

    _splitViewCOntroller = [[UISplitViewController alloc]init]; //initilise split controller
    _splitViewCOntroller.delegate = detailViewController;      //set the delegate to detail controller
    _splitViewCOntroller.viewControllers = [NSArray arrayWithObjects:masterNavController,detailNavController, nil]; //set the splitview controller
     self.window.rootViewController = _splitViewCOntroller; //finally your splitviewcontroller as the root view controller
     [self.window makeKeyAndVisible];

     return YES;
 }


 //in SplitMasterViewController.h this must be a table that contains your side bar menu items 
 #import "ViewController.h" //comment this if it shows any error
 #import "SplitViewDetailController.h"

 @interface SplitMasterViewController :        UITableViewController<UITableViewDataSource,UITableViewDelegate>
 @property (nonatomic, retain) SplitViewDetailController *detailViewController; //to get the detailview from masterMenu controller 
 @property (nonatomic, retain) NSArray *Names;

 @end 

 // in SplitMasterViewController.m file
 #import "SplitMasterViewController.h"
 #import "SplitViewDetailController.h"


 @interface SplitMasterViewController ()

 @end

 @implementation SplitMasterViewController

 @synthesize Names;
 @synthesize detailViewController;


 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
 {
     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
     if (self) {
     // Custom initialization
      }
     return self;
  }

  - (void)viewDidLoad
  { 
    [super viewDidLoad];
    //  Do any additional setup after loading the view from its nib.
    Names = [[NSArray alloc] initWithObjects:@"apple", @"banana",
             @"mango", @"grapes", nil];

    [self.tableView selectRowAtIndexPath:
    [NSIndexPath indexPathForRow:0 inSection:0]
                            animated:NO
                      scrollPosition:UITableViewScrollPositionMiddle];
   }

    - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
    {
       return 1;
    }

    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
    {
      return [Names count];
    }

   - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
  {
     static NSString *CellIdentifier = @"Cell";

     UITableViewCell *cell = [tableView
                         dequeueReusableCellWithIdentifier:CellIdentifier];
     if (cell == nil) {
     cell = [[UITableViewCell alloc]
            initWithStyle:UITableViewCellStyleDefault
            reuseIdentifier:CellIdentifier];
        }

    // [self configureCell:cell atIndexPath:indexPath];

    cell.textLabel.text = [Names objectAtIndex:indexPath.row];
    return cell;
   }

   - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
 {
     SplitViewDetailController *detailController =  self.detailViewController;
     detailController.myLabel.text = [Names objectAtIndex:indexPath.row]; //set the name from the array
 }

  - (void)didReceiveMemoryWarning
  {
     [super didReceiveMemoryWarning];
     // Dispose of any resources that can be recreated.
  }

  @end


  //in SplitViewDetailController.h
  #import "ViewController.h"

  @interface SplitViewDetailController : UIViewController<UISplitViewControllerDelegate>
  @property (strong, nonatomic) id detailItem;
  @property (strong, nonatomic) IBOutlet UILabel *myLabel;
  @property (nonatomic, retain) UIBarButtonItem *leftBarButtonItem; //to show a button on left side

  @end

 //in SplitViewDetailController.m 

 #import "SplitViewDetailController.h"

 @interface SplitViewDetailController ()
 {
   UIPopoverController *masterPopoverController;
 }

 @end

  @implementation SplitViewDetailController

  - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
  {
     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
     if (self) {
      // Custom initialization
     }
     return self;
  }

  - (void)viewDidLoad
  {
    [super viewDidLoad];
     // _leftBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"Menu" style:UIBarButtonItemStyleBordered target:self action:nil];
  }

  - (void)didReceiveMemoryWarning
  {
     [super didReceiveMemoryWarning];
     // Dispose of any resources that can be recreated.
   }


  //these are the call back to detail view controller to hide or show the button
  - (void)splitViewController:(UISplitViewController *)splitController willHideViewController:(UIViewController *)viewController  withBarButtonItem:(UIBarButtonItem *)barButtonItem  forPopoverController:(UIPopoverController *)popoverController
 {
   _leftBarButtonItem = barButtonItem;
   _leftBarButtonItem.style = UIBarButtonItemStyleBordered;
   _leftBarButtonItem.title = @"Menu";
   [self.navigationItem setLeftBarButtonItem:_leftBarButtonItem animated:YES];
  }

  // Called when the view is shown again in the split view, invalidating the button
  - (void)splitViewController:(UISplitViewController *)splitController       willShowViewController:(UIViewController *)viewController invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem
   {
      [self.navigationItem setLeftBarButtonItem:nil animated:YES];
   }

  @end