Ios 使用obj-c的UINavigationController居中按钮

我试图在导航栏标题中添加一个居中按钮，但对如何操作感到困惑

- (void)viewDidLoad {
    [super viewDidLoad];
UIImage *meImage = [[UIImage alloc] initWithContentsOfFile:[NSString stringWithFormat:@"%@/me.png", kSelfBundlePath]];
UIBarButtonItem *meButton = [[UIBarButtonItem alloc] initWithImage:meImage style:UIBarButtonItemStylePlain target:self action:@selector(twitterButton)];


[self.titleView //i read this can be used to like set it but i havent been able to figure it out

非常感谢您的帮助，非常新

请检查此代码

UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 44)];
    container.backgroundColor = [UIColor clearColor];
    UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
    [btn setFrame:CGRectMake(0, 0, 44, 44)];
    [btn setBackgroundImage:[UIImage imageNamed:@"button0.png"] forState:UIControlStateNormal];
    [btn addTarget:self action:@selector(btnAction:) forControlEvents:UIControlEventTouchUpInside];
    [btn setShowsTouchWhenHighlighted:YES];
    [buttonContainer addSubview:button0];

    //add your spacer images and button1 and button2...

    self.navigationItem.titleView = container; 

检查此代码

UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 44)];
    container.backgroundColor = [UIColor clearColor];
    UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
    [btn setFrame:CGRectMake(0, 0, 44, 44)];
    [btn setBackgroundImage:[UIImage imageNamed:@"button0.png"] forState:UIControlStateNormal];
    [btn addTarget:self action:@selector(btnAction:) forControlEvents:UIControlEventTouchUpInside];
    [btn setShowsTouchWhenHighlighted:YES];
    [buttonContainer addSubview:button0];

    //add your spacer images and button1 and button2...

    self.navigationItem.titleView = container; 

---

你可以这样试试

UIView *topView = [[UIView alloc]initWithFrame:CGRectZero];

UIButton * button = [[UIButton alloc]initWithFrame:CGRectZero];

[button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];

[button setTitle:@"Title here" forState:UIControlStateNormal];

[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];

[button sizeToFit];

[topView addSubview:button];

[topView sizeToFit];

self.navigationItem.titleView = topView;

-(void)buttonAction:(Id) sender {

NSLog(@"button clicked");

}

---

你可以这样试试

UIView *topView = [[UIView alloc]initWithFrame:CGRectZero];

UIButton * button = [[UIButton alloc]initWithFrame:CGRectZero];

[button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];

[button setTitle:@"Title here" forState:UIControlStateNormal];

[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];

[button sizeToFit];

[topView addSubview:button];

[topView sizeToFit];

self.navigationItem.titleView = topView;

-(void)buttonAction:(Id) sender {

NSLog(@"button clicked");

}

---

我认为这很简单，您可以使用UINavigationItem的titleView属性：

    -(void)addCenterButton {
    UIImage *meImage = [[UIImage alloc] initWithContentsOfFile:[NSString stringWithFormat:@"%@/me.png", kSelfBundlePath]];
    UIButton *button = [[UIButton alloc] initWithFrame::CGRectMake(0, 0, 40, 20)];
    [button setImage:meImage forState:UIControlStateNormal];
    [button addTarget:self action:@selector(twitterButton) forControlEvents:UIControlEventTouchUpInside];
    self.navigationItem.titleView = button;
    }

---

我认为这很简单，您可以使用UINavigationItem的titleView属性：

    -(void)addCenterButton {
    UIImage *meImage = [[UIImage alloc] initWithContentsOfFile:[NSString stringWithFormat:@"%@/me.png", kSelfBundlePath]];
    UIButton *button = [[UIButton alloc] initWithFrame::CGRectMake(0, 0, 40, 20)];
    [button setImage:meImage forState:UIControlStateNormal];
    [button addTarget:self action:@selector(twitterButton) forControlEvents:UIControlEventTouchUpInside];
    self.navigationItem.titleView = button;
    }

---

你想在中心添加按钮吗？是的，相当多你想在中心添加按钮吗？是的，相当多。谢谢你的帮助和其他提供类似答案的人。EP成功了，谢谢你的帮助和其他提供类似答案的人。我非常感谢你提供了它，看起来正是我想要做的&有一些额外的东西我很感激，谢谢你是的，我非常感谢你提供它，看起来正是我想要做的&有一些额外的东西我很感激，谢谢你