如何使用導航控制器創建靜態子視圖？

Question

我已經創建了一個視圖控制器堆棧的導航控制器。

我想添加一個子視圖在底部保持靜態（不移動），而用戶之間瀏覽這堆視圖。

就像在某些應用程序中，底部有一個「廣告欄」。

我該怎麼做？

Answer 1

如果我理解正確的話，這是你想要的東西：

您就可以向該通過創建包圍UINavigationController的一個自定義的UIViewController。創建一個名爲 「CustomViewController」 新品類，並粘貼以下代碼：

接口

#import <UIKit/UIKit.h> 

@interface CustomViewController : UIViewController 

- (id)initWithViewController:(UIViewController*)viewController bottomView:(UIView*)bottomView; 

@end 

實現：

#import "CustomViewController.h" 

@implementation CustomViewController 

- (id)initWithViewController:(UIViewController*)viewController bottomView:(UIView*)bottomView 
{ 
    self = [super init]; 
    if (self) { 

     // Set up view size for navigationController; use full bounds minus 60pt at the bottom 
     CGRect navigationControllerFrame = self.view.bounds; 
     navigationControllerFrame.size.height -= 60; 
     viewController.view.frame = navigationControllerFrame; 

     // Set up view size for bottomView 
     CGRect bottomViewFrame = CGRectMake(0, self.view.bounds.size.height-60, self.view.bounds.size.width, 60); 
     bottomView.frame = bottomViewFrame; 

     // Enable autoresizing for both the navigationController and the bottomView 
     viewController.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; 
     bottomView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin; 

     // Add views as subviews to the current view 
     [self.view addSubview:viewController.view]; 
     [self.view addSubview:bottomView]; 
    } 
    return self; 
} 

@end 

現在使用CustomViewController：

UIView *myBottomView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 100)]; 
myBottomView.backgroundColor = [UIColor redColor]; 

CustomViewController *customViewController = [[CustomViewController alloc] initWithViewController:<yourNavigationController> bottomView:myView]; 

Answer 2

爲什麼不在與導航控制器視圖相同的級別添加此靜態子視圖（通常是UIWindow附近的級別）。只需將它添加到最上面即可。