導航欄中的iPhone標題和字幕

在我的應用程序中，我希望導航欄顯示標題和副標題。導航欄中的iPhone標題和字幕

在這個意義上，我下面的代碼添加到我的視圖控制器：

// Replace titleView 
CGRect headerTitleSubtitleFrame = CGRectMake(0, 0, 200, 44);  
UIView* _headerTitleSubtitleView = [[[UILabel alloc] initWithFrame:headerTitleSubtitleFrame] autorelease]; 
_headerTitleSubtitleView.backgroundColor = [UIColor clearColor]; 
_headerTitleSubtitleView.autoresizesSubviews = YES; 

CGRect titleFrame = CGRectMake(0, 2, 200, 24); 
UILabel *titleView = [[[UILabel alloc] initWithFrame:titleFrame] autorelease]; 
titleView.backgroundColor = [UIColor clearColor]; 
titleView.font = [UIFont boldSystemFontOfSize:20]; 
titleView.textAlignment = UITextAlignmentCenter; 
titleView.textColor = [UIColor whiteColor]; 
titleView.shadowColor = [UIColor darkGrayColor]; 
titleView.shadowOffset = CGSizeMake(0, -1); 
titleView.text = @""; 
titleView.adjustsFontSizeToFitWidth = YES; 
[_headerTitleSubtitleView addSubview:titleView]; 

CGRect subtitleFrame = CGRectMake(0, 24, 200, 44-24); 
UILabel *subtitleView = [[[UILabel alloc] initWithFrame:subtitleFrame] autorelease]; 
subtitleView.backgroundColor = [UIColor clearColor]; 
subtitleView.font = [UIFont boldSystemFontOfSize:13]; 
subtitleView.textAlignment = UITextAlignmentCenter; 
subtitleView.textColor = [UIColor whiteColor]; 
subtitleView.shadowColor = [UIColor darkGrayColor]; 
subtitleView.shadowOffset = CGSizeMake(0, -1); 
subtitleView.text = @""; 
subtitleView.adjustsFontSizeToFitWidth = YES; 
[_headerTitleSubtitleView addSubview:subtitleView]; 

_headerTitleSubtitleView.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | 
             UIViewAutoresizingFlexibleRightMargin | 
             UIViewAutoresizingFlexibleTopMargin | 
             UIViewAutoresizingFlexibleBottomMargin); 

self.navigationItem.titleView = _headerTitleSubtitleView;

而且還實現了一個方法：

-(void) setHeaderTitle:(NSString*)headerTitle andSubtitle:(NSString*)headerSubtitle { 
    assert(self.navigationItem.titleView != nil); 
    UIView* headerTitleSubtitleView = self.navigationItem.titleView; 
    UILabel* titleView = [headerTitleSubtitleView.subviews objectAtIndex:0]; 
    UILabel* subtitleView = [headerTitleSubtitleView.subviews objectAtIndex:1]; 
    assert((titleView != nil) && (subtitleView != nil) && ([titleView isKindOfClass:[UILabel class]]) && ([subtitleView isKindOfClass:[UILabel class]])); 
    titleView.text = headerTitle; 
    subtitleView.text = headerSubtitle; 
}

事情做工精美，謝謝。旋轉iPhone爲橫向時

除此之外，本標題+字幕不象導航項目的默認標題以自動的方式縮小。

任何指針？

謝謝！

來源

2010-05-12 Reuven

您的代碼工作得很好，是很好寫，感謝張貼。什麼時候你打電話給setHeaderTitle？當推送的viewcontroller調用viewWillAppear時，我嘗試過這樣做，但它切換得太早，viewDidAppear切換太遲。 – 2010-10-19 18:55:37

我在init方法中調用它。 – Reuven 2010-10-19 19:00:58

充分利用titleView和subtitleView標籤到視圖控制器的性能，讓您可以從任何方法來訪問它們。然後，在視圖控制器的旋轉，調整大小的標籤：

- (void) willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration { 
    [self adjustLabelsForOrientation:toInterfaceOrientation]; 
} 

- (void) adjustLabelsForOrientation:(UIInterfaceOrientation)orientation { 
    if (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight) { 
     titleView.font = [UIFont boldSystemFontOfSize:16]; 
     subtitleView.font = [UIFont boldSystemFontOfSize:11]; 
    } 
    else if (orientation == UIInterfaceOrientationPortrait || orientation == UIInterfaceOrientationPortraitUpsideDown) { 
     titleView.font = [UIFont boldSystemFontOfSize:20]; 
     subtitleView.font = [UIFont boldSystemFontOfSize:13]; 
    } 
}

來源

2010-05-12 08:49:01

謝謝 - 這工作。（我仍然需要玩弄風景字體大小，但方向的作品） – Reuven 2010-05-12 09:44:35

代替此authoresizing的掩蓋

_headerTitleSubtitleView.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | 
             UIViewAutoresizingFlexibleRightMargin | 
             UIViewAutoresizingFlexibleTopMargin | 
             UIViewAutoresizingFlexibleBottomMargin);

你應該使用

_headerTitleSubtitleView.autoresizingMask = UIViewAutoresizingFlexibleWidth | 
             UIViewAutoresizingFlexibleHeight; 

titleView.autoresizingMask = UIViewAutoresizingFlexibleWidth | 
              UIViewAutoresizingFlexibleHeight; 
subtitleView.autoresizingMask = UIViewAutoresizingFlexibleWidth | 
              UIViewAutoresizingFlexibleHeight;

來源

2013-04-05 11:22:05 FunkyKat

導航欄中的iPhone標題和字幕

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