呈现模态视图控制器导航Z位置问题

Question

我有创建rootview控制器

- (void)viewWillAppear:(BOOL)animated 
{ 
    ///set hud 
    [UIApplication sharedApplication].networkActivityIndicatorVisible=YES; 
    [[UIApplication sharedApplication]setStatusBarStyle:UIStatusBarStyleBlackOpaque animated:NO]; 
    //Set Apps navbar 
    self.title=@"Trip Planer"; 

    UINavigationBar *navBar= self.navigationController.navigationBar; 
    //[navBar setTintColor:[UIColor colorWithRed:0.102 green:0.498 blue:0.812 alpha:1] /*#1a7fcf*/]; 

    UIImage *imagebar = [UIImage imageNamed:@"Menu-Bar"]; 
    [navBar setBackgroundImage:imagebar forBarMetrics:UIBarMetricsDefault]; 

    ////set rightbutton menus 
    UIButton *rightButton = [[UIButton alloc] init]; 
    rightButton.frame=CGRectMake(0,100.0f,23,23); 
    [rightButton setBackgroundImage:[UIImage imageNamed: @"Filters"] forState:UIControlStateNormal]; 
    rightButton.highlighted=false; 
    [rightButton addTarget:self action:@selector(showFilters:) forControlEvents:UIControlEventTouchDown]; 

    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithCustomView:rightButton]; 
    navBar.layer.zPosition=1; 

    [rightButton release]; 
} 

导航栏和我使用TSMiniwebBrowser作为模态窗口

-(void) initTitleBar { 
    UIBarButtonItem *buttonDone = [[UIBarButtonItem alloc] initWithTitle:modalDismissButtonTitle style:UIBarButtonItemStyleBordered target:self action:@selector(dismissController)]; 

    UINavigationItem *titleBar = [[UINavigationItem alloc] initWithTitle:@""]; 
    titleBar.leftBarButtonItem = buttonDone; 


    CGFloat width = self.view.frame.size.width; 
    UIImage *navbarPortrait = [[UIImage imageNamed:@"Menu-Bar"] 
           resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)]; 
    navigationBarModal = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, width, 44)]; 
    [[UINavigationBar appearance] setBackgroundImage:navbarPortrait 
             forBarMetrics:UIBarMetricsDefault]; 
    navigationBarModal.layer.zPosition=700.0; 
    NSLog(@"%f",navigationBarModal.layer.zPosition); 
    //navigationBar.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleBottomMargin; 
    navigationBarModal.autoresizingMask = UIViewAutoresizingFlexibleWidth; 
    [navigationBarModal pushNavigationItem:titleBar animated:NO]; 

    [self.view addSubview:navigationBarModal]; 
} 

的主要问题是导航栏上RootViewController的始终覆盖在 TSMiniWeb浏览器事件我改变zmin TSminiBrowser Navbar大于viewcontroller ..任何错误的mycode？

Answer 1

addSubview不是呈现模态视图控制器的正确方法。我建议你阅读iOS的视图控制器编程指南，特别是Presenting View Controllers from Other View Controllers