34

我正在尝试在导航栏的中心添加一个自定义视图，并且我正在使用以下代码对其进行测试：

UIView * testView = [[UIView alloc] init];
[testView setBackgroundColor:[UIColor blackColor]];
testView.frame = CGRectMake(0, 0, 100, 35);
[self.navigationController.navigationItem.titleView addSubview:testView];

我在我的视图控制器的 viewDidLoad 方法中进行了设置，但是当我运行我的程序时，我的导航栏中似乎没有任何变化。

你能帮我解决这个问题吗？

4

8 回答 8

69

这行得通。在初始化时给出框架

UIView *iv = [[UIView alloc] initWithFrame:CGRectMake(0,0,32,32)];
[iv setBackgroundColor:[UIColor whiteColor]];
self.navigationItem.titleView = iv;
于 2011-12-08T15:19:34.760 回答
34

如果您只想自定义一个视图控制器的标题，您可以使用

UILabel *lblTitle = [[UILabel alloc] init];
lblTitle.text = @"Diga-nos o motivo";
lblTitle.backgroundColor = [UIColor clearColor];
lblTitle.textColor = [UIColor colorWithRed:77.0/255.0 green:77.0/255.0 blue:77.0/255.0 alpha:1.0];
lblTitle.shadowColor = [UIColor whiteColor];
lblTitle.shadowOffset = CGSizeMake(0, 1);
lblTitle.font = [UIFont fontWithName:@"HelveticaNeue-Bold" size:18.0];
[lblTitle sizeToFit];

self.navigationItem.titleView = lblTitle;

或者如果您想为所有视图控制器自定义使用

[[UINavigationBar appearance] setTitleTextAttributes:
    [NSDictionary dictionaryWithObjectsAndKeys:
        [UIColor colorWithRed:255.0/255.0 green:255.0/255.0 blue:255.0/255.0 alpha:1.0], 
        UITextAttributeTextColor, 
        [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.8], 
        UITextAttributeTextShadowColor, 
        [NSValue valueWithUIOffset:UIOffsetMake(0, -1)], 
        UITextAttributeTextShadowOffset, 
        [UIFont fontWithName:@"Arial-Bold" size:10.0], 
        UITextAttributeFont, 
        nil]];
于 2012-12-20T14:32:58.410 回答
27

代替

[self.navigationController.navigationItem.titleView addSubview:testView];

到

self.navigationItem.titleView = testView;

编辑：

注意：您不能将子视图添加到 titleView 因为它的默认值为nil，您需要将新视图设置为 titleView。

于 2011-12-08T15:14:18.867 回答
1 
CustomLabel *titleLabel = [CustomLabel initWithLabelFrame:labelFrame textFont:[UIFont fontWithName:@"Helvetica" size:[UIFont systemFontSize]] textColor:[UIColor blackColor] labelText:@"Add as" textAlignment:NSTextAlignmentCenter labelOnView:reference.view labelTag:62];

[self.navigationItem setTitleView:titleLabel]; // titleLabel set in navigationItem
于 2015-09-13T06:22:47.360 回答
1 
#import <UIKit/UIKit.h> 
@interface MasterViewController : UITableViewController
@end


#import "MasterViewController.h"
@interface MasterViewController ()
@end

@implementation MasterViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    self.navigationItem.titleView = [self titleView];
}

- (UIView *)titleView {
    CGFloat navBarHeight = self.navigationController.navigationBar.frame.size.height;
    CGFloat width = 0.95 * self.view.frame.size.width;
    UIView *containerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, width, navBarHeight)];

    UIImage *logo = [UIImage imageNamed:@"logo.png"];
    UIButton *logoButton = [UIButton buttonWithType:UIButtonTypeCustom];
    CGFloat logoY = floorf((navBarHeight - logo.size.height) / 2.0f);
    [logoButton setFrame:CGRectMake(0, logoY, logo.size.width, logo.size.height)];
    [logoButton setImage:logo forState:UIControlStateNormal];

    UIImage *bubble = [UIImage imageNamed:@"notification-bubble-empty.png"];
    UIImageView *bubbleView = [[UIImageView alloc] initWithImage:bubble];

    const CGFloat Padding = 5.0f;
    CGFloat bubbleX = 
        logoButton.frame.size.width + 
        logoButton.frame.origin.x + 
        Padding;
    CGFloat bubbleY = floorf((navBarHeight - bubble.size.height) / 2.0f);
    CGRect bubbleRect = bubbleView.frame;
    bubbleRect.origin.x = bubbleX;
    bubbleRect.origin.y = bubbleY;
    bubbleView.frame = bubbleRect;

    [containerView addSubview:logoButton];
    [containerView addSubview:bubbleView];

    return containerView;
}

@end
于 2016-02-21T21:33:50.943 回答
1

斯威夫特 3/4

您可以将 ie 设置UILabel为titleView. 调用它viewDidLoad()：

private func setNavigationTitle(_ title: String) {
    navigationItem.title = nil // clear the default title
    let titleLabel = UILabel() // you don't need to specify a frame, it will be centred in the navbar
    titleLabel.font = ...
    titleLabel.textColor = ...
    titleLabel.text = title
    titleLabel.backgroundColor = .clear
    navigationItem.titleView = titleLabel
    navigationTitleView = titleLabel // you may create a property if you want to manipulate the title view later
}

注意 navigationItem.title = nil，否则title可能会覆盖titleView。

于 2018-07-11T15:37:55.247 回答
0

您需要使用故事板来支持 iPhone 6 和更新（更大）的设备。

为您的自定义导航项标题/副标题等创建一个容器视图，并将其拖到可视化编辑器中（而不是拖到视图层次结构中）。

于 2015-06-17T21:37:17.897 回答
0

斯威夫特 3

let myImageView = UIImageView(image: <...set your image...>)

override fun viewDidLoad(){
   super.viewDidLoad()
   self.navigationItem.titleView = myImageView  //
}

另一种替代解决方案是

override fun viewWillAppear(_ animated: Bool) {
   super. viewWillAppear(animated)
   self.navigationItem.titleView = myImageView
}

我建议使用，viewDidLoad设置你的titleView

于 2017-03-19T01:59:58.527 回答