Iphone 交换观点是错误的

我需要在应用程序中直接从表视图显示图片。我设法放置视图控制器并将其导入导航，当我打开图片时，一切都很好。 问题是，当我尝试返回时，它首先在空视图上返回，然后再次按下“返回”，我返回到起始位置。 有人能告诉我怎么抓吗

以下是图片视图控制器的代码：

    #import "PhotoGalleryVC.h"


@implementation PhotoGalleryVC

@synthesize images,tabBar,forward,backward,back,scrollView,imageWindow,titolo;

 // The designated initializer.  Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
    if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) {
        // Custom initialization
        index = 0;
        images = [[NSMutableArray alloc] init];
    }
    return self;
}



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

//  UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"Back" 
//                                                                 style:UIBarButtonItemStyleBordered
//                                                                target:self
//                                                                action:nil]; //@sel
//  self.navigationController.navigationItem.backBarButtonItem = backButton;
//  


    CGRect frame = CGRectMake(0, 0, 320, 480);
    scrollView = [[UIScrollView alloc] initWithFrame:frame];
    scrollView.pagingEnabled = NO;
    //frame = CGRectMake(0, 44, 320, 416);
    //imageWindow = [[UIImageView alloc] initWithFrame:frame];
    scrollView.delegate = self;
    scrollView.maximumZoomScale = 4.0;
    scrollView.minimumZoomScale = 1.0;
    //scrollView.zoomScale 
    [scrollView addSubview:imageWindow];
    [scrollView addSubview:tabBar];
    [scrollView addSubview:titolo];
    scrollView.contentSize = CGSizeMake(320, 460);
    [self.view addSubview:scrollView];
    [backward setEnabled:NO];
    [titolo setTextColor:[UIColor whiteColor]];
    //[titolo setText:[NSString stringWithFormat:@"1/%i",[images count]]];
    [titolo setText:[NSString stringWithFormat:@"%i/%i",index+1,[images count]]];
    if ([images count] == 1) [forward setEnabled:NO];
    if([images count] > 0) [self loadImage];
}

- (void)viewDidAppear:(BOOL)animated {
//  [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:NO];
}


// Override to allow orientations other than the default portrait orientation.
/*
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait || UIInterfaceOrientationLandscapeRight);
}
*/

- (void)didReceiveMemoryWarning {
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];

    // Release any cached data, images, etc that aren't in use.
}

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

#pragma mark -
#pragma mark Metodi Delegate ScrollView

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    NSLog(@"began");
}

//metodo delegate per zooming
-(UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView {
    // return some view that will be scaled
    //[self.scrollView setNeedsDisplay];
    return self.imageWindow;

}
/*
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
    NSLog(@"didScroll");
}

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
    NSLog(@"WillBeginDragging");
}

- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
    NSLog(@"willDecelerate");
}

- (BOOL)scrollViewShouldScrollToTop:(UIScrollView *)scrollView {
    NSLog(@"should");
    return YES;
}

- (void)scrollViewDidScrollToTop:(UIScrollView *)scrollView {
    NSLog(@"didScrollToTop");
}

- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView {
    NSLog(@"willDecelerating");
}

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
    NSLog(@"didEndDecelerating");
}

 - (void)scrollViewDidZoom:(UIScrollView *)scrollView {
 NSLog(@"didZoom");
 }

 - (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView {
 NSLog(@"didEndScrollingAnimation");
 }
*/

- (void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:(UIView *)view {
    //NSLog(@"willBeginZoming");
    if (tabBar.hidden == NO) {
        [tabBar setHidden:YES];
        [titolo setHidden:YES];
    }
}

- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale {
    //NSLog(@"didEndZooming");
    //NSLog(@"scala %f",scale);
    if (scale == 1.0f) {
        [tabBar setHidden:NO];
        [titolo setHidden:NO];
    }
}

#pragma mark -
#pragma mark Metodi Locali

- (void) addImageName:(NSString*)img {

    if (img) {
        [images addObject:[NSString stringWithString:img]];
    }
}

- (IBAction)backAction {
    //[[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:NO];
    [self dismissModalViewControllerAnimated:YES];
}

- (IBAction)backwardAction {
    index--;
    if (index == 0) [backward setEnabled:NO];
    if (index < [images count]-1) [forward setEnabled:YES];
    [self loadImage];   
    [titolo setText:[NSString stringWithFormat:@"%i/%i",index+1,[images count]]];
}

- (IBAction)forwardAction {
    index++;
    if ([images count]-1 == index) [forward setEnabled:NO];
    if (index > 0) [backward setEnabled:YES];
    [self loadImage];
    [titolo setText:[NSString stringWithFormat:@"%i/%i",index+1,[images count]]];
}

- (void) loadImage {
     imageWindow.image = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:[images objectAtIndex:index] ofType:nil]];
}    

#pragma mark -



@end

开始时的外观如下所示：

if (array != nil) {
    //NSLog(@"Sub items count=%d", [array count]);

if ([managedObject.nav_title isEqualToString:@"Mappa"] == YES ||

        [managedObject.nav_title isEqualToString:@"Centro Storico"] == YES) {

        PhotoGalleryVC *pvc = [[PhotoGalleryVC alloc] initWithNibName:@"PhotoGalleryVC" bundle:nil];
        [pvc addImageName:@"mappacaorle.jpg"];
        pvc.modalTransitionStyle = UIModalTransitionStylePartialCurl;
        [self presentModalViewController:pvc animated:YES];

        //[self.navigationController pushViewController:pvc animated:YES];

        return;


} else if ...

结果是：

当我试图回到过去时，我想到：

我想放松最后一步，直接回到第一张图片

设法找到解决办法。我不能回答8小时，所以做编辑的问题

在PerformMonClickEditeMatIndex中，改为：

 UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];

    if([cell.textLabel.text isEqualToString:@"Mappa"]){
        NSString *map = @"";
        //central & east coast
        if ([self.title isEqualToString:@"Centro Storico"]) {
            map = @"mappacaorle.jpg";
        }

        if (![map isEqualToString:@""]) {
            PhotoGalleryVC *gallery = [[PhotoGalleryVC alloc] initWithNibName:@"PhotoGalleryVC" bundle:nil];
            [gallery addImageName:map];
            gallery.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
            [self presentModalViewController:gallery animated:YES];

        }
    }

我在main if结构中添加了如下选项：

if (array != nil) {
    //NSLog(@"Sub items count=%d", [array count]);

if ([managedObject.nav_title isEqualToString:@"Mappa"] == YES ||

        [managedObject.nav_title isEqualToString:@"Centro Storico"] == YES) {

        PhotoGalleryVC *pvc = [[PhotoGalleryVC alloc] initWithNibName:@"PhotoGalleryVC" bundle:nil];
        [pvc addImageName:@"mappacaorle.jpg"];
        pvc.modalTransitionStyle = UIModalTransitionStylePartialCurl;
        [self presentModalViewController:pvc animated:YES];

        //[self.navigationController pushViewController:pvc animated:YES];

        return;


} else if ...

---

细节不充分。如果你是这样做的，我在你的描述中没有看到tableviewdidselectrow方法。请同时显示tableview控制器代码的完整代码。何时/何地调用<代码>回退操作<代码>？…您可以发布tableview代理回退吗？我发现错误。。。谢谢你的建议…这是一个很好的做法，张贴你是如何解决的，这样如果其他人有同样的问题，可以从你所做的事情中得到提示。我编辑了问题并提供了我所做的更改。