無法將視圖切換回iPhone

我在切換iPhone模擬器中的視圖時遇到了問題。我編寫了一個可以切換視圖的代碼，但現在當我在模擬器中運行它時，我發現應用程序只切換前進的觀點，但我無法將視圖切換回來。我無法找到我的代碼中的問題。如果有人幫助我用我的代碼找出問題，會很感激。無法將視圖切換回iPhone

我的代碼是：

SwitchingViewsViewController.h

#import <UIKit/UIKit.h> 

@interface SwitchingViewsViewController : UIViewController 
{ 

} 
-(IBAction)switchback:(id)sender; 
@end

SwitchingViewsViewController.m

#import "SwitchingViewsViewController.h" 
#import "secondview.h" 

@interface SwitchingViewsViewController() 

@end 

@implementation SwitchingViewsViewController 

-(IBAction)switchback:(id)sender 
{ 
    secondview *second = [[secondview alloc] initWithNibName:nil bundle:nil]; 
    [self presentModalViewController:second animated:YES]; 
} 



- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
// Do any additional setup after loading the view, typically from a nib. 
} 

- (void)viewDidUnload 
{ 
    [super viewDidUnload]; 
// Release any retained subviews of the main view. 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation 
{ 
    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) { 
     return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); 
    } else { 
     return YES; 
    } 
} 

@end

secondview.h

#import <UIKit/UIKit.h> 

@interface secondview : UIViewController 
{ 

} 
-(IBAction)switchview:(id)sender; 
@end

secondview.m

#import "secondview.h" 
#import "SwitchingViewsViewController.h" 

@interface secondview() 

@end 

@implementation secondview 


-(IBAction)switchview:(id)sender 
{ 
    SwitchingViewsViewController *second = [[SwitchingViewsViewController alloc] initWithNibName:nil bundle:nil]; 
    [self presentModalViewController:second animated:YES]; 
} 
- (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. 
} 

- (void)viewDidUnload 
{ 
    [super viewDidUnload]; 
// Release any retained subviews of the main view. 
// e.g. self.myOutlet = nil; 
} 

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

@end

在此先感謝。

來源

2012-12-18 user1850482

你怎麼知道得這麼遠嗎？你是否確認了 - 當你期望他們是--switchview和-switchback都被調用？也許更重要的是，你是否意識到這些方法都推動新模態視圖控制器？假設這些被稱爲你似乎試圖建立一個更深層的模態。您可能希望頂級控制器自行解散。 – Jonah

是的，jonah是對的 –

如果你有解決方法養成接受答案的習慣。 –

此使用第二種觀點

-(IBAction)switchview:(id)sender 
{ 
[self dismissModalViewControllerAnimated:YES]; 
}

來源

2012-12-18 02:29:53

@implementation secondview 


-(IBAction)switchview:(id)sender 
{ 
    [self dismissModalViewControllerAnimated:YES]; 
}

來源

2012-12-18 03:44:30

無法將視圖切換回iPhone

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