Display navigationController on top

I have set up a subview "popup" in my application and I want to show a navController if the user taps a button on the subview popup. I've set up the button so far, but if I tap the button the navigationController appears under my popup!? I've searched for some solution but I didn't found any. The whole controller is actually displayed in a folder which you can find here: https://github.com/jwilling/JWFolders So the viewDidLoad belong to the folder and the rootview. I tried to make it as a subview of the popup but that doesn't work too. Does anyone know how to treat that? I've set up the popup programmaticaly and the navigationController too. Thanks in advance.

My code:

The navController setup:

    - (IBAction)dothis:(id)sender {

    MWPhotoBrowser *browser = [[MWPhotoBrowser alloc] initWithDelegate:self];

    // Set browser options.
    browser.wantsFullScreenLayout = YES;
    browser.displayActionButton = YES;


    UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:browser];

    [self presentModalViewController:navController animated:YES];

    NSMutableArray *photos = [[NSMutableArray alloc] init];
    MWPhoto *photo;
    photo = [MWPhoto photoWithFilePath:[[NSBundle mainBundle] pathForResource:@"star" ofType:@"png"]];
    photo.caption = @"The star is soo beateful...";
    [photos addObject:photo];

    self.photos = photos;

}


- (MWPhoto *)photoBrowser:(MWPhotoBrowser *)photoBrowser photoAtIndex:(NSUInteger)index {
    if (index < _photos.count)
        return [_photos objectAtIndex:index];
    return nil;
}
- (NSUInteger)numberOfPhotosInPhotoBrowser:(MWPhotoBrowser *)photoBrowser {
    return _photos.count;
}

The popup code:

   -(IBAction)mehr:(id)sender {
    //the popup size and content
    UIView *contentView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 280, 440)];
    CGRect welcomeLabelRect = contentView.bounds;
    welcomeLabelRect.origin.y = 20;
    welcomeLabelRect.size.height = 40;
    UILabel *welcomeLabel = [[UILabel alloc] initWithFrame:welcomeLabelRect];

//an simple activityindicator

 activityindi = [[UIActivityIndicatorView  alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
    activityindi.frame = CGRectMake(120, 200, 40, 40);
    [activityindi startAnimating];
    [contentView addSubview:activityindi];

   //The Imageview
    CGRect infoimagerect = CGRectMake(5, 70, 270, 200);

    UIImageView *infoimage = [[UIImageView alloc] initWithFrame:infoimagerect];

        //and the Button

cubut = [UIButton buttonWithType:UIButtonTypeCustom];
    [cubut addTarget:self
              action:@selector(dothis:)
    forControlEvents:UIControlEventTouchUpInside];
    [cubut setTitle:nil forState:UIControlStateNormal];
    cubut.frame = CGRectMake(5, 70, 270, 200);

//retrieving data from parse.com
PFQuery *query = [PFQuery queryWithClassName:@"My-Application"];
    [query getObjectInBackgroundWithId:@"My-ID"
                                 block:^(PFObject *textdu, NSError *error) {
                                     if (!error) {

//hide the Button if there is no image
                                         cubut.hidden=YES;

                                         //the headline of popup
                                         UIFont *welcomeLabelFont = [UIFont fontWithName:@"copperplate" size:20];

                                         welcomeLabel.text = [textdu objectForKey:@"header"];
                                         welcomeLabel.font = welcomeLabelFont;
                                         welcomeLabel.textColor = [UIColor whiteColor];
                                         welcomeLabel.textAlignment = NSTextAlignmentCenter;
                                         welcomeLabel.backgroundColor = [UIColor clearColor];
                                         welcomeLabel.shadowColor = [UIColor blackColor];
                                         welcomeLabel.shadowOffset = CGSizeMake(0, 1);
                                         welcomeLabel.lineBreakMode = UILineBreakModeWordWrap;
                                         welcomeLabel.numberOfLines = 2;
                                         [contentView addSubview:welcomeLabel];

//the image from parse

 if (!error) {
                                             PFFile *imageFile = [textdu objectForKey:@"image"];
                                             [imageFile getDataInBackgroundWithBlock:^(NSData *data, NSError *error) {
                                                 if (!error) {
                                                     UIImage *image = [UIImage imageWithData:data];
                                                     infoimage.image = image;
                                                     infoimage.contentMode = UIViewContentModeScaleAspectFit;
                                                     //show the button when the image appears
                                                     cubut.hidden = NO;




                                                     [contentView addSubview:infoimage];
                                                    //stop the activityindicator
                                                     [activityindi stopAnimating];

                                                 }
                                             }];
                                         }
 } else {
                                        //show some text 
                                         welcomeLabel.text = @"No connection!";
                                         [welcomeLabel sizeToFit];
//hide the button
                                         cubut.hidden = YES;

                                         [contentView addSubview:infoLabel];
//stop the activityindicator
                                         [activityindi stopAnimating];
                                     }

                                 }];
//add the content to the KNGModal view



 [[KGModal sharedInstance] showWithContentView:contentView andAnimated:YES];
}

My viewDidLoad

- (void)viewDidLoad
{

but.hidden = YES;
PFQuery *query = [PFQuery queryWithClassName:@"myapp"];
    [query getObjectInBackgroundWithId:@"Rgq5vankdf"
                                 block:^(PFObject *textu, NSError *error) {
                                     if (!error) {
but.hidden = NO;
                                         but.color = [UIColor colorWithRed:0.90f green:0.90f blue:0.90f alpha:1.00f];

} else {

                                         //if failure
                                        but.hidden = YES;
                                        mol.text = @"No Connection";

                                     }

                                 }];


    [super viewDidLoad];

}

Pictures:

The button to open the folder:

The folder itself:

The popup:

Thanks in advance.

回答1:

From the so far discussion and debugging the code you want to have the photo browser on the pop-up with a navigation controller.

So here is the sample code which implements this functionality, have a look at it.

I have used the same KGModal sample code and extended as per the requirement. I have used Xib to have a view with navigation bar.

To dismiss the pop-up from any where in the app you can use the below line, as it is shared instance.

[[KGModal sharedInstance] hideAnimated:YES];

Update:

The reason for showing the photo browser with in folderView is, you are trying to present the photoBrowser within the folderView, so it was presenting within the folderView of very small height & not able to see any photo.

So my suggestion is, as the user taps on pop-up to view photoBrowser you just remove pop-up and present the photoBrowser from the viewController class, as other than this class everything is handled through views.

I have made the changes as per above & works fine, to the code given by you, download the code here and have a look at it.

Let me know if it fulfills your needs.

Thanks

回答2:

I noticed this line of code:

[[KGModal sharedInstance] showWithContentView: contentView andAnimated: YES];

And I can only think that, since it is a singleton, it adds the contentView on the UIApplication's key window. If that is the case, then a modal view controller will always be below the popup. You can solve this by adding a new method to the KGModal class

- (void) showWithContentView: (UIView*)           contentView
            inViewController: (UIViewController*) controller
                 andAnimated: (BOOL)              animated;

the method should show the popup in the specified controller's view; you should use that method instead.

Edit

After some more digging, I found that KGModal displays the popup on another window. The quickest fix would be to dismiss the popup, then show the nav controller.