Question

在我的应用程序中有2个视图（打开按钮按下），一个是显示Web链接，另一个是显示一些文本。在第一个视图中，我使用了一个UIWebView并在其中显示了一个Web链接。在第二个视图中，我已经在UITextView中显示了一些文本。现在，当我按下按钮切换这些视图时，有时Web视图显示文本视图，有时textview和textview发生相同的事情，意味着随机这些视图显示任何视图Web或文本。两种观点彼此完全不同。

以下是代码：

web.h

@interface web : UIViewController {
    NSInteger bTag;
    IBOutlet UIWebView *webShow;
}
@property(nonatomic,readwrite) NSInteger bTag;
@property (nonatomic, retain) IBOutlet UIWebView *webShow;
-(IBAction)menuButtonPressed:(id) sender;
@end

web.m

#import "help.h"
#import "web.h"


@implementation web

@synthesize bTag;
@synthesize webShow;

-(IBAction)menuButtonPressed:(id) sender
{
    self.bTag=[sender tag];

    switch (self.bTag)
    {

        case 1:
        {
            help *hv=[[help alloc] initWithNibName:nil bundle:nil];
            hv.modalTransitionStyle=UIModalTransitionStyleCoverVertical;
            [self presentModalViewController:hv animated:YES];  
            [hv release];
            break;
        }
        case 2:
        {
            web *wv=[[web alloc] initWithNibName:nil bundle:nil];
            wv.modalTransitionStyle=UIModalTransitionStyleCoverVertical;
            [self presentModalViewController:wv animated:YES];  
            [wv release];
            break;
        }
        default:
            break;
    }

}

-(void)viewWillAppear:(BOOL)animated
{
    NSURL *url = [NSURL URLWithString:@"http://www.unicurd.com.sg/"];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    [webShow loadRequest:request];
}

- (void)dealloc {
    [super dealloc];
    [webShow release];
}
@end

help.h

@interface help : UIViewController {


    NSInteger bTag;
    }

@property(nonatomic,readwrite) NSInteger bTag;


-(IBAction)menuButtonPressed:(id) sender;

@end

help.m

#import "help.h"
#import "web.h"


@implementation help

@synthesize bTag;

-(IBAction)menuButtonPressed:(id) sender
{
    self.bTag=[sender tag];

    switch (self.bTag)
    {

        case 1:
        {
            help *hv=[[help alloc] initWithNibName:nil bundle:nil];
            hv.modalTransitionStyle=UIModalTransitionStyleCoverVertical;
            [self presentModalViewController:hv animated:YES];  
            [hv release];
            break;
        }
        case 2:
        {
            web *wv=[[web alloc] initWithNibName:nil bundle:nil];
            wv.modalTransitionStyle=UIModalTransitionStyleCoverVertical;
            [self presentModalViewController:wv animated:YES];  
            [wv release];
            break;
        }
        default:
            break;
    }

}

我通过UITextView在help.xib中显示文本。

Answer 1

使用以下代码作为参考

-(void) buttonPressed:(id) sender
{
     if(SwitchToLinkView)
     {
         [myTextView removeFromSuperview];
         [self.view addSubview:myWebLinkView];
     }
     else 
     {
         [myWebLinkView removeFromSuperview];
         [self.view addSubview:myTextView];
     }
}

Answer 2

您可以使用 dismissModalViewControllerAnimated

Answer 3

您是否随机显示视图，因为我无法理解您的ibaction中的逻辑。

切换视图时出现问题

3 个答案: