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我写了一个很好的画廊视图控制器 .h .m 和 .xib 可以很好地满足我的目的。在现有的 uinavigationcontroller 中点击以编程方式创建的按钮并加载图像、播放电影或查看 pdf 或网站。我想更改它，以便可以在代码中添加 xib 的内容 - 而不使用 nib 文件。这样它会更有用（我认为）。

问题是 .m 中引用的函数，例如 - [self presentMoviePlayerViewControllerAnimated:YES] 等不起作用。我尝试在这个新的 .h 和 .m 中创建 rootviewcontroller 的属性，并将 self 替换为 myController （属性名称）。但是我的视图控制器代码依赖于现有的 uinavigation 来推送新内容或类似的东西。如何删除/调整这些对 self 的引用或对 uinavigationcontrollers 的依赖，以便它像具有 nib 视图控制器时一样工作？

编辑：下面添加的代码。在 nib 中只有一个名为 uis_thumbScrollView 的 uiscrollview。我想通过简单地调用类似的东西来添加它： 

[self.view addSubview:[[ebThumbScroller alloc] initWithFrame:CGRectMake(0, 0, 1024, 733)]];

每个人的评论都提醒我，这将被放入的 uiview 存在于 rootviewcontroller 中，在顶部。也许这就是为什么我可以听到电影播放 - 但看不到它。

注意：代码在 uiscrollview 中创建了一系列带有按钮的 uiview。.h #import #import "ebAppDelegate.h" #import "MediaPlayer/MediaPlayer.h"

@interface HomeGalleryViewController : UIViewController <UIScrollViewDelegate, UIGestureRecognizerDelegate, UIDocumentInteractionControllerDelegate> {

    BOOL pageControlBeingUsed;
    int buttonCount;

    CGFloat         _minimumColumnGap;
    UIEdgeInsets    _contentInsets;
    NSInteger       _colCount;
    NSInteger       _rowCount;
    CGFloat         _rowGap;
    CGFloat         _colGap;
    UIEdgeInsets    _effectiveInsets;
    //int iGalleryThumbs;
    //int iPlanThumbs;
    int iTotalButtons;
    ebAppDelegate *ebappdelegate;
    ebGalleryItem *ebgalleryItem;
    NSDictionary *gallDict;
    NSArray *gallerySections;
    NSArray *galleryArray;
    NSMutableArray *nsm_gallArray;
    UIDocumentInteractionController *controller;
}

//@property (nonatomic, retain) IBOutlet UIButton *bItem;
@property (nonatomic, retain) NSString *galleryNameString;
@property (nonatomic, retain) IBOutlet UIScrollView* scrollView;
@property (retain, nonatomic) NSMutableArray *arr_Views;
@property (strong, nonatomic) IBOutlet UIScrollView* uis_thumbScrollView;
@property (strong, nonatomic) IBOutlet UIPageControl* uis_pageControl;
@property (strong, nonatomic) IBOutlet UIView *uiv_thumbView;
@property (strong, nonatomic) MPMoviePlayerController *player;
@property (strong, nonatomic) MPMoviePlayerViewController *playerViewController;


- (IBAction)changePage;
- (IBAction) clickOpen:(id)sender;
- (void)playMovie:(NSString*)movieName;
- (void)movieFinishedCallback:(NSNotification*)_notification;

@end

.m

#import "HomeGalleryViewController.h"
#import "ebAppDelegate.h"
#import "GalleryImagesViewController.h"
#import "Gallery.h"
#import "GalleryThumbnailsViewController.h"
#import "GalleriesListViewController.h"
#import <QuartzCore/CoreAnimation.h>
#import "ebGalleryItem.h"
#import "WebViewController.h"

@implementation HomeGalleryViewController
// buttons
#define hGutter 17
#define vGutter 13
#define btnSize 130
#define topSpace 50
#define leftMargin 100

@synthesize uiv_thumbView;

@synthesize uiv_gallCat0, uiv_gallCat1, uiv_gallCat2,uiv_gallCat3, uiv_gallCat4, uiv_gallCat5,uiv_gallCat6;
@synthesize uis_thumbScrollView, uis_pageControl;

@synthesize galleryNameString,scrollView,arr_Views;
@synthesize player, playerViewController;

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

    [super viewDidLoad];    

    ebappdelegate = (ebAppDelegate *)[[UIApplication sharedApplication] delegate];
    arr_Views = [[NSMutableArray alloc] init];

    self.scrollView.contentSize = CGSizeMake(1024, 1005);

    // nsarray of dictionaries (galleries)
    gallerySections = ebappdelegate.arr_galleryData;
    NSLog(@"gallerySections count:%i",[gallerySections count]);
    nsm_gallArray = [NSMutableArray arrayWithCapacity:1];

    [self layoutGalleryThumbs];
}

#pragma mark 
#pragma mark Layout Gallery Thumbs

-(void)layoutGalleryThumbs {

    NSUInteger numGallSections = [gallerySections count];
    NSLog(@"gallerySections data:%@",gallerySections);
    NSLog(@"numGallSections count:%i",numGallSections);

    // Window bounds.
    CGRect bounds = CGRectMake(0, 0, 1024, 215);

    for (int i=0; i<numGallSections; i++) {

        // Create a view and add it to the window.
        UIView* vview = [[UIView alloc] initWithFrame: CGRectMake(0, bounds.size.height*i-1, bounds.size.width, bounds.size.height)];
        [vview setBackgroundColor: [UIColor whiteColor]];
        [vview setTag:i];
        //vview.backgroundColor = (UIColor (i % 2 == 0 ? cyanColor : whiteColor];
        vview.backgroundColor =  (i % 2 == 0)? [UIColor lightGrayColor] : [UIColor whiteColor];

        [arr_Views addObject:vview];

        // add line below at bottom
        UIView* lineView = [[UIView alloc] initWithFrame: CGRectMake(280, bounds.size.height, 700, 2)];
        [lineView setBackgroundColor: [UIColor grayColor]];
        lineView.alpha = 0.5;
        [vview addSubview:lineView];

        [uis_thumbScrollView addSubview: vview];

        NSLog(@"start===============i:%i",i);

        // grab a gallery
        gallDict = [gallerySections objectAtIndex:i];       // grab dict
        galleryArray = [gallDict objectForKey:@"gallSectionData"]; // grab array from dict
        NSLog(@"galleryArray:%@",[galleryArray description]);
        NSString *secTitle = [gallDict objectForKey:@"gallSectionName"];

        iTotalButtons = [galleryArray count];
        NSLog(@"iTotalButtons count:%i",iTotalButtons);

        _minimumColumnGap = 5;

        _colCount = floorf((uis_thumbScrollView.bounds.size.width - _contentInsets.left - _contentInsets.right) / btnSize);

        while (1) {
            _colGap = (uis_thumbScrollView.bounds.size.width - _contentInsets.left - _contentInsets.right - btnSize * _colCount) / (_colCount + 1);
            if (_colGap >= _minimumColumnGap)
                break;
            --_colCount;
        };

        _rowCount = (iTotalButtons + _colCount - 1) / _colCount;
        _rowGap = _colGap;

        _effectiveInsets = UIEdgeInsetsMake(_contentInsets.top + _rowGap,
                                            _contentInsets.left + _colGap,
                                            _contentInsets.bottom + _rowGap,
                                            _contentInsets.right + _colGap);

        NSLog(@"row count:%i",_rowCount);
        NSLog(@"col count:%i",_colCount);

        buttonCount=0;

        for (int e=0; e<iTotalButtons; e++) {
            NSLog(@"e:%i",e);

            ebgalleryItem = [galleryArray objectAtIndex:e];
            UIImage *thumbImg = [UIImage imageNamed:ebgalleryItem.gallThumb];

            UIButton *button = [UIButton buttonWithType: UIButtonTypeCustom];

            CGRect frame = CGRectMake (btnSize*e+leftMargin, topSpace,
                                       btnSize-hGutter, btnSize-vGutter );
            [button setFrame: frame];
            NSLog(@"added button");

            //[button setBackgroundImage:thumbImg forState:UIControlStateNormal];
            [button setImage:thumbImg forState:UIControlStateNormal];
            [button setTitle:ebgalleryItem.gallName forState:UIControlStateNormal];
            NSLog(@"%@",button.titleLabel.text);

            [button addTarget: NULL action:@selector(clickOpen:) forControlEvents:UIControlEventTouchUpInside];
            UILongPressGestureRecognizer *tapAndHold = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longclickOpen:)];
            [tapAndHold setMinimumPressDuration:0.33];
            [button addGestureRecognizer:tapAndHold];
            [button setTag:e];
            //[button setTag:i*_colCount+e];

            NSLog(@" button tag=%i", button.tag);

            button.alpha=1.0;
            [[arr_Views objectAtIndex:i] addSubview:button];
            NSLog(@"middle====i:%i",i);

            // caption label
            CGRect labelFrame = CGRectMake( btnSize*e+leftMargin, 125,
                                           btnSize-hGutter, btnSize-vGutter );
            UILabel* label = [[UILabel alloc] initWithFrame: labelFrame];
            [label setFont:[UIFont fontWithName:@"Arial" size:14]];
            label.numberOfLines = 0;
            [label setText:ebgalleryItem.gallCaption];
            [label setTextColor: [UIColor blackColor]];
            [label setTextAlignment:UITextAlignmentCenter];
            [label setBackgroundColor:[UIColor clearColor]];
            [[arr_Views objectAtIndex:i] addSubview: label];
            NSLog(@"middle2====i:%i",i);

            buttonCount++;
        }

        // Section Title label
        CGRect titleLabelFrame = CGRectMake(btnSize,0,250,50);
        UILabel* titlelabel = [[UILabel alloc] initWithFrame: titleLabelFrame];
        [titlelabel setFont:[UIFont fontWithName:@"Arial" size:16]];
        [titlelabel setText:secTitle];
        [titlelabel setTextColor: [UIColor blackColor]];
        [titlelabel setTextAlignment:UITextAlignmentLeft];
        [titlelabel setBackgroundColor:[UIColor clearColor]];
        [[arr_Views objectAtIndex:i] addSubview: titlelabel];
        NSLog(@"end====i:%i",i);


        CGFloat scrollViewHeight = 0.0f;
        for (UIView* view in self.uis_thumbScrollView.subviews)
        {
            if (!view.hidden)
            {
                CGFloat y = view.frame.origin.y;
                CGFloat h = view.frame.size.height;
                if (y + h > scrollViewHeight)
                {
                    scrollViewHeight = h + y;
                }
            }
        }


        [self.uis_thumbScrollView setContentSize:(CGSizeMake(self.uis_thumbScrollView.frame.size.width, scrollViewHeight+74))]; //74 is space from top in IB of scroll
        }
    uiv_thumbView.alpha = 1.0;
}


#pragma mark Scrollview

- (void)scrollViewDidScroll:(UIScrollView *)sender {
    // Update the page when more than 50% of the previous/next page is visible
    CGFloat pageWidth = self.uis_thumbScrollView.frame.size.width;
    int page = floor((self.uis_thumbScrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1;
    self.uis_pageControl.currentPage = page;

    // nslogs zoomsacle/bounds
    CGRect visibleRect;
    visibleRect.origin = uis_thumbScrollView.contentOffset;
    visibleRect.size = uis_thumbScrollView.bounds.size;

    float theScale = 1.0 / [uis_thumbScrollView zoomScale];
    visibleRect.origin.x *= theScale;
    visibleRect.origin.y *= theScale;
    visibleRect.size.width *= theScale;
    visibleRect.size.height *= theScale;

    NSLog( @"Visible rect: %@", NSStringFromCGRect(visibleRect) );
}

- (IBAction)changePage {
    // update the scroll view to the appropriate page
    CGRect frame;
    frame.origin.x = self.uis_thumbScrollView.frame.size.width * self.uis_pageControl.currentPage;
    frame.origin.y = 0;
    frame.size = self.uis_thumbScrollView.frame.size;
    [self.uis_thumbScrollView scrollRectToVisible:frame animated:YES];
}

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
    pageControlBeingUsed = NO;
}

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
    pageControlBeingUsed = NO;
}

//===================================================================
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft | interfaceOrientation == 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 {
    [self setUiv_thumbView:nil];
}

- (void)viewDidDisappear:(BOOL)animated {
}

- (void)viewWillAppear:(BOOL)animated {
    [UIApplication sharedApplication].statusBarHidden = YES;
    self.view.frame = [UIScreen mainScreen].applicationFrame;
    CGRect frame = self.navigationController.navigationBar.frame;
    frame.origin.y = 0;
    self.navigationController.navigationBar.frame = frame;
    [self.navigationController setNavigationBarHidden:YES animated:animated];
    self.navigationController.navigationBar.translucent = YES;
}

- (void)viewWillDisappear:(BOOL)animated {
    [UIApplication sharedApplication].statusBarHidden = NO;
    CGRect frame = self.navigationController.navigationBar.frame;
    frame.origin.y = 20.0;
    self.navigationController.navigationBar.frame = frame;
}

- (void)viewDidAppear:(BOOL)animated {
    [[UIApplication sharedApplication] setStatusBarHidden:YES];
    [self.navigationController setNavigationBarHidden:YES animated:animated];
    [self.navigationController setToolbarHidden:YES animated:YES];
    [super viewDidAppear:animated];
}

//======================================================================    
-(IBAction)clickOpen:(id)sender {

    UIButton *tmpBtn = (UIButton*)sender;
    NSLog(@"sender tag: %i", [sender tag]);

    int superviewTag = [sender superview].tag;  
    NSLog(@"sender superview tag: %i", superviewTag);

    gallDict = [gallerySections objectAtIndex:superviewTag];        // grab dict
    galleryArray = [gallDict objectForKey:@"gallSectionData"];      // grab array from dict

    tmpBtn.alpha = 0.6;

    ebgalleryItem = [galleryArray objectAtIndex:[sender tag]];

    NSLog(@"%@",ebgalleryItem.gallType);
    NSLog(@"%@",ebgalleryItem.gallName);

    NSLog(@"gallDict %@",gallDict);

    if ([ebgalleryItem.gallType isEqualToString:@"movie"]) {

        [self playMovie:ebgalleryItem.gallFilm];

    } else if ([ebgalleryItem.gallType isEqualToString:@"image"]) {

        [self imageViewer:sender];

    } else if ([ebgalleryItem.gallType isEqualToString:@"pdf"]) {

        [self viewPDF:ebgalleryItem.gallName];

    }  else if ([ebgalleryItem.gallType isEqualToString:@"web"]) {

        [self openWeb:ebgalleryItem.gallName];
    }
}

#pragma mark 
#pragma mark Open Websites 

- (IBAction)openWeb:(NSString*)thisWEB {

    WebViewController *webViewController = [[WebViewController alloc] 
                                            initWithNibName:@"WebViewController" 
                                            bundle:nil];
    [webViewController socialButton:thisWEB];
    webViewController.title = thisWEB;
    [self presentModalViewController:webViewController animated:YES];
}

#pragma mark 
#pragma mark Image Viewer

-(void)imageViewer:(id)sender {

    UIButton *tmpBtn = (UIButton*)sender;

    galleryNameString = tmpBtn.titleLabel.text;
    tmpBtn.alpha = 0.6;

    GalleryImagesViewController *vc = [[GalleryImagesViewController alloc] initWithGallery:[Gallery galleryNamed:galleryNameString]];
    [vc goToPageAtIndex:0 animated:NO];

    CATransition* transition = [CATransition animation];
    transition.duration = 0.33;
    transition.type = kCATransitionFade;
    transition.subtype = kCATransitionFromTop;

    [self.navigationController.view.layer
     addAnimation:transition forKey:kCATransition];
    [self.navigationController pushViewController:vc animated:NO];
}

#pragma mark 
#pragma mark PDF Viewer

-(void)viewPDF:(NSString*)thisPDF {
    NSString *fileToOpen = [[NSBundle mainBundle] pathForResource:thisPDF ofType:@"pdf"];
    NSURL *url = [NSURL fileURLWithPath:fileToOpen];

    NSLog(@"%@",fileToOpen);
    controller = [UIDocumentInteractionController interactionControllerWithURL:url];
    [self previewDocumentWithURL:url];
}


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

- (void)previewDocumentWithURL:(NSURL*)url
{
    UIDocumentInteractionController* preview = [UIDocumentInteractionController interactionControllerWithURL:url];
    preview.delegate = self;
    [preview presentPreviewAnimated:YES];
}

//======================================================================    
- (void)documentInteractionControllerDidDismissOptionsMenu:(UIDocumentInteractionController *)controller{
}

//===================================================================
- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller
{
    return self;
}

- (UIView *)documentInteractionControllerViewForPreview:(UIDocumentInteractionController *)controller
{
    return self.view;
}

- (CGRect)documentInteractionControllerRectForPreview:(UIDocumentInteractionController *)controller
{
    return self.view.frame;
}


-(IBAction)longclickOpen:(UILongPressGestureRecognizer*)gesture {

    if (gesture.state == UIGestureRecognizerStateBegan ) {

        [self.navigationController setNavigationBarHidden:NO];

        ebAppDelegate *appDelegate = (ebAppDelegate *)[[UIApplication sharedApplication] delegate];
        appDelegate.isFromLongPress=YES;

        //NSUInteger i = [gesture.view tag];

        //galleryNameString = [appDelegate.arr_galleryData objectAtIndex:i];

        NSLog(@"load %@",galleryNameString);

        UIButton *btn = (UIButton*)gesture.view;

        galleryNameString = btn.titleLabel.text;        btn.alpha = 0.6;

        //NSLog(@"Long Press");
        //NSLog(@"llongclickOpen");
        UIViewController *vc = [[GalleryThumbnailsViewController alloc] initWithGallery:[Gallery galleryNamed:galleryNameString]];
        CATransition* transition = [CATransition animation];
        transition.duration = 0.33;
        transition.type = kCATransitionFade;
        transition.subtype = kCATransitionFromTop;

        [self.navigationController.view.layer
         addAnimation:transition forKey:kCATransition];
        [self.navigationController pushViewController:vc animated:NO];
    }
}


-(void)playMovie:(NSString*)movieName {

    NSString *url = [[NSBundle mainBundle] 
                     pathForResource:movieName
                     ofType:@"m4v"];

    NSLog(@"%@",movieName);

    playerViewController = [[MPMoviePlayerViewController alloc] 
                                                         initWithContentURL:[NSURL fileURLWithPath:url]];

    [[NSNotificationCenter defaultCenter] removeObserver:playerViewController
                                                    name:MPMoviePlayerPlaybackDidFinishNotification
                                                  object:playerViewController.moviePlayer];

    // Register this class as an observer instead
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(movieFinishedCallback:)
                                                 name:MPMoviePlayerPlaybackDidFinishNotification
                                               object:playerViewController.moviePlayer];

    [self.view insertSubview:playerViewController.view atIndex:50];

    //---play movie---
    player = [playerViewController moviePlayer];
    player.controlStyle = MPMovieControlStyleFullscreen;
    player.repeatMode=MPMovieRepeatModeOne;

    [self presentMoviePlayerViewControllerAnimated:playerViewController];
    [[UIApplication sharedApplication] setStatusBarHidden:YES];

    [super viewDidLoad];
}

- (void)movieFinishedCallback:(NSNotification*)aNotification {
    // Obtain the reason why the movie playback finished
    NSNumber *finishReason = [[aNotification userInfo] objectForKey:MPMoviePlayerPlaybackDidFinishReasonUserInfoKey];

    // Dismiss the view controller ONLY when the reason is not "playback ended"
    if ([finishReason intValue] != MPMovieFinishReasonPlaybackEnded)
    {
        MPMoviePlayerController *moviePlayer = [aNotification object];

        // Remove this class from the observers
        [[NSNotificationCenter defaultCenter] removeObserver:self
                                                        name:MPMoviePlayerPlaybackDidFinishNotification
                                                      object:moviePlayer];
        // Dismiss the view controller
        [self dismissModalViewControllerAnimated:YES];
    }
}


@end
4

2 回答 2

1

如果您唯一的问题是 [self presentMoviePlayerViewControllerAnimated:YES] 方法不起作用，那么问题是presentMoviePlayerViewControllerAnimated:需要实际的 moviePlayerViewController 作为参数而不是布尔值。（假设你指的是 UIViewController 类别的这个方法）UIViewController MediaPlayer Additions Reference

因此，如果您将其替换为 say presentMoviePlayerViewControllerAnimated:self.moviePlayerVC，它应该可以按预期工作。

于 2012-10-24T23:31:15.483 回答
0

我不确定我是否理解您的问题，但是如果您需要将控制器包装到某个 UINavigationController 中，您可以这样做：

UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:myController];
    navController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
    navController.navigationBar.barStyle = UIBarStyleBlack;
    [self presentViewController:navController animated:YES completion:^{
        //
    }];

稍后任何子控制器都将具有导航层次结构。

于 2012-10-24T23:26:17.843 回答