iphone - 在顶部显示 navigationController

Question

我在我的应用程序中设置了一个 subview “弹出窗口”，如果用户点击 subview 弹出窗口上的按钮，我想显示一个 navController。到目前为止，我已经设置了按钮，但是如果我点击按钮，navigationController 会出现在我的弹出窗口下方!？我已经搜索了一些解决方案，但没有找到任何解决方案。整个 Controller 实际上显示在一个文件夹中，您可以在此处找到:https://github.com/jwilling/JWFolders所以viewDidLoad属于文件夹和rootview。我试图将其作为弹出窗口的 subview ，但这也不起作用。有谁知道如何治疗？我也以编程方式设置了弹出窗口和导航 Controller 。提前致谢。

我的代码:

导航 Controller 设置:

    - (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;
}

弹窗代码:

   -(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];
}

我的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];

}

图片:

打开文件夹的按钮:

文件夹本身:

弹出窗口:

提前致谢。

Answer 1

从目前的讨论和调试代码来看，您希望在带有导航 Controller 的弹出窗口中显示照片浏览器。

所以这里是 sample code它实现了这个功能，看看它。

我使用了相同的 KGModal 示例代码并根据要求进行了扩展。我已经使用 Xib 来查看带有导航栏的 View 。

要从应用程序中的任何位置关闭弹出窗口，您可以使用以下行，因为它是共享实例。

[[KGModal sharedInstance] hideAnimated:YES];

更新:

在 folderView 中显示照片浏览器的原因是，您试图在 folderView 中显示 photoBrowser，因此它在非常小的 folderView 中显示并且看不到任何照片。

所以我的建议是，当用户点击弹出窗口查看 photoBrowser 时，您只需删除弹出窗口并从 viewController 类中呈现 photoBrowser，因为除了此类之外，所有内容都通过 View 处理。

我已经按照上面的方法进行了修改并且工作正常，对于你给的代码，下载代码here看看它。

让我知道它是否满足您的需求。

谢谢