我试图刷新按钮添加到导航控制器没有成功的最上面一栏。
这里是标题:
@interface PropertyViewController : UINavigationController {
}
这里是我在尝试添加:
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithTitle:@"Show" style:UIBarButtonItemStylePlain
target:self action:@selector(refreshPropertyList:)];
self.navigationItem.rightBarButtonItem = anotherButton;
}
return self;
}
Answer 1:
尝试在viewDidLoad中这样做。 一般来说,你应该反正推迟任何你能到这一点,当一个UIViewController是inited它仍然可能是相当长一段时间它会显示之前,早做工作,占用内存是没有意义的。
- (void)viewDidLoad {
[super viewDidLoad];
UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithTitle:@"Show" style:UIBarButtonItemStylePlain target:self action:@selector(refreshPropertyList:)];
self.navigationItem.rightBarButtonItem = anotherButton;
// exclude the following in ARC projects...
[anotherButton release];
}
至于为什么它没有目前的工作,我不能100%肯定地说,没有看到更多的代码,但很多事情发生init和视图之间的负载,并且你可能会做一些使navigationItem来重置之间。
Answer 2:
尝试添加该按钮是将要推到这个视图控制器的navigationItem PropertyViewController
你已经创建的类。
那是:
MainViewController *vc = [[MainViewController alloc] initWithNibName:@"MainViewController" bundle:nil];
UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeInfoLight];
[infoButton addTarget:self action:@selector(showInfo) forControlEvents:UIControlEventTouchUpInside];
vc.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:infoButton] autorelease];
PropertyViewController *navController = [[PropertyViewController alloc] initWithRootViewController:vc];
现在,已通过编程创建此infoButton将在导航栏中显示。 这个想法是,导航控制器拾取来自其显示信息(标题,按钮等) UIViewController
它即将显示量。 其实你不直接添加按钮和这样的UINavigationController
。
Answer 3:
看来,有些人(比如我)可以来这里寻找如何在界面生成器添加一个导航栏按钮。 下面的回答显示了如何做到这一点。
添加导航控制器到你的故事板
选择您的视图控制器,然后在Xcode的菜单中选择编辑>嵌入>导航控制器 。
或者,你可以添加一个UINavigationBar
从对象库。
添加栏按钮项目
一拖UIBarButtonItem
从对象库顶部导航栏。
它应该是这样的:
设置的属性
你可以双击“项目”来改变文字的东西,如“刷新”,但对于刷新一个实际的图标,你可以使用。 只需选择属性检查器UIBarButtonItem
和系统项目选择刷新 。
这会给你的默认刷新图标。
添加IB行动
从控制拖动UIBarButtonItem
的视图控制器添加@IBAction
。
class ViewController: UIViewController {
@IBAction func refreshBarButtonItemTap(sender: UIBarButtonItem) {
print("How refreshing!")
}
}
而已。
Answer 4:
没有为“刷新”默认的系统按钮:
- (void)viewDidLoad {
[super viewDidLoad];
UIBarButtonItem *refreshButton = [[[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
target:self action:@selector(refreshClicked:)] autorelease];
self.navigationItem.rightBarButtonItem = refreshButton;
}
- (IBAction)refreshClicked:(id)sender {
}
Answer 5:
您可以使用此:
Objective-C的
UIBarButtonItem *rightSideOptionButton = [[UIBarButtonItem alloc] initWithTitle:@"Right" style:UIBarButtonItemStylePlain target:self action:@selector(rightSideOptionButtonClicked:)];
self.navigationItem.rightBarButtonItem = rightSideOptionButton;
迅速
let rightSideOptionButton = UIBarButtonItem()
rightSideOptionButton.title = "Right"
self.navigationItem.rightBarButtonItem = rightSideOptionButton
Answer 6:
-(void) viewWillAppear:(BOOL)animated
{
UIButton *btnRight = [UIButton buttonWithType:UIButtonTypeCustom];
[btnRight setFrame:CGRectMake(0, 0, 30, 44)];
[btnRight setImage:[UIImage imageNamed:@"image.png"] forState:UIControlStateNormal];
[btnRight addTarget:self action:@selector(saveData) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *barBtnRight = [[UIBarButtonItem alloc] initWithCustomView:btnRight];
[barBtnRight setTintColor:[UIColor whiteColor]];
[[[self tabBarController] navigationItem] setRightBarButtonItem:barBtnRight];
}
Answer 7:
对于SWIFT 2:
self.title = "Your Title"
var homeButton : UIBarButtonItem = UIBarButtonItem(title: "LeftButtonTitle", style: UIBarButtonItemStyle.Plain, target: self, action: Selector("yourMethod"))
var logButton : UIBarButtonItem = UIBarButtonItem(title: "RigthButtonTitle", style: UIBarButtonItemStyle.Plain, target: self, action: Selector("yourMethod"))
self.navigationItem.leftBarButtonItem = homeButton
self.navigationItem.rightBarButtonItem = logButton
Answer 8:
以下是在夫特溶液(根据需要设置的选项):
var optionButton = UIBarButtonItem()
optionButton.title = "Settings"
//optionButton.action = something (put your action here)
self.navigationItem.rightBarButtonItem = optionButton
Answer 9:
为什么你的子类UINavigationController
? 有没有需要继承它,如果你需要做的就是添加一个按钮即可。
建立一个分层结构与UINavigationController
顶部,然后在你的根视图控制器的viewDidLoad:
方法:设置按钮,并通过调用其连接到导航项目
[[self navigationItem] setRightBarButtonItem:myBarButtonItem];
Answer 10:
你可以试试
self.navigationBar.topItem.rightBarButtonItem = anotherButton;
Answer 11:
斯威夫特4:
override func viewDidLoad() {
super.viewDidLoad()
navigationItem.leftBarButtonItem = UIBarButtonItem(title: "tap me", style: .plain, target: self, action: #selector(onButtonTap))
}
@objc func onButtonTap() {
print("you tapped me !?")
}
Answer 12:
UIView *view = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 110, 50)];
view.backgroundColor = [UIColor clearColor];
UIButton *settingsButton = [UIButton buttonWithType:UIButtonTypeCustom];
[settingsButton setImage:[UIImage imageNamed:@"settings_icon_png.png"] forState:UIControlStateNormal];
[settingsButton addTarget:self action:@selector(logOutClicked) forControlEvents:UIControlEventTouchUpInside];
[settingsButton setFrame:CGRectMake(40,5,32,32)];
[view addSubview:settingsButton];
UIButton *filterButton = [UIButton buttonWithType:UIButtonTypeCustom];
[filterButton setImage:[UIImage imageNamed:@"filter.png"] forState:UIControlStateNormal];
[filterButton addTarget:self action:@selector(openActionSheet) forControlEvents:UIControlEventTouchUpInside];
[filterButton setFrame:CGRectMake(80,5,32,32)];
[view addSubview:filterButton];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:view];
Answer 13:
尝试对我来说this.It工作。
导航栏也添加背景图片右边的按钮。
UIBarButtonItem *Savebtn=[[UIBarButtonItem alloc]initWithImage:[[UIImage
imageNamed:@"bt_save.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]
style:UIBarButtonItemStylePlain target:self action:@selector(SaveButtonClicked)];
self.navigationItem.rightBarButtonItem=Savebtn;
Answer 14:
使用右按钮导航栏的代码与你赢了标题和调用的方法点击右键后。
UIBarButtonItem *btnSort=[[UIBarButtonItem alloc]initWithTitle:@"right" style:UIBarButtonItemStylePlain target:self action:@selector(sortedDataCalled)];
self.navigationItem.rightBarButtonItem=btnSort;
}
-(void)sortedDataCalled {
NSLog(@"callBtn");
}
Answer 15:
UIBarButtonItem *rightBarButtonItem = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(add:)];
self.navigationItem.rightBarButtonItem = rightBarButtonItem;
Answer 16:
- (void)viewWillAppear:(BOOL)animated
{
[self setDetailViewNavigationBar];
}
-(void)setDetailViewNavigationBar
{
self.navigationController.navigationBar.tintColor = [UIColor purpleColor];
[self setNavigationBarRightButton];
[self setNavigationBarBackButton];
}
-(void)setNavigationBarBackButton// using custom button
{
UIBarButtonItem *leftButton = [[UIBarButtonItem alloc] initWithTitle:@" Back " style:UIBarButtonItemStylePlain target:self action:@selector(onClickLeftButton:)];
self.navigationItem.leftBarButtonItem = leftButton;
}
- (void)onClickLeftButton:(id)sender
{
NSLog(@"onClickLeftButton");
}
-(void)setNavigationBarRightButton
{
UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithTitle:@"Show" style:UIBarButtonItemStylePlain target:self action:@selector(onClickrighttButton:)];
self.navigationItem.rightBarButtonItem = anotherButton;
}
- (void)onClickrighttButton:(id)sender
{
NSLog(@"onClickrighttButton");
}
Answer 17:
self.navigationItem.rightBarButtonItem =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:@selector(refreshData)];
}
-(void)refreshData{
progressHud= [MBProgressHUD showHUDAddedTo:self.navigationController.view animated:YES];
[progressHud setLabelText:@"拼命加载中..."];
[self loadNetwork];
}
Answer 18:
你应该添加barButtonItem - (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
方法。
Answer 19:
只需复制并粘贴此Objective-C代码。
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
[self addRightBarButtonItem];
}
- (void) addRightBarButtonItem {
UIButton *btnAddContact = [UIButton buttonWithType:UIButtonTypeContactAdd];
[btnAddContact addTarget:self action:@selector(addCustomerPressed:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *barButton = [[UIBarButtonItem alloc] initWithCustomView:btnAddContact];
self.navigationItem.rightBarButtonItem = barButton;
}
#pragma mark - UIButton
- (IBAction)addCustomerPressed:(id)sender {
// Your right button pressed event
}
Answer 20:
如果我们删除该视图控制器或尝试添加界面生成器(main.storyboard)内新的视图控制器可能出现此问题。 要解决这个问题,它需要添加“导航项目”中新的视图控制器。 有时它发生,我们创造新的视图控制器屏幕上,并没有连接到“导航项目”自动。
- 转至main.storyboard。
- 选择新的视图控制器。
- 转至文档大纲。
- 检查视图控制器的内容。
- 如果新视图控制器不具有导航项,然后,从以前的视图控制器复制导航项目,将其粘贴到新的视图控制器。
- 保存和清理项目。
Answer 21:
你也可以添加使用多个按钮rightBarButtonItems
-(void)viewDidLoad{
UIBarButtonItem *button1 = [[UIBarButtonItem alloc] initWithTitle:@"button 1" style:UIBarButtonItemStylePlain target:self action:@selector(YOUR_METHOD1:)];
UIBarButtonItem *button2 = [[UIBarButtonItem alloc] initWithTitle:@"button 2" style:UIBarButtonItemStylePlain target:self action:@selector(YOUR_METHOD2:)];
self.navigationItem.rightBarButtonItems = @[button1, button2];
}
Answer 22:
@Artilheiro:如果它是一个navigationbased项目,U可以创建BaseViewController。 所有其他视图将继承这个基本视角。 在基本视点ü可以定义通用的方法来添加右键或修改左边的按钮文本。
例如:
@interface BaseController:{的UIViewController
} - (无效)setBackButtonCaption:(的NSString *)标题;
(空隙)setRightButtonCaption:(的NSString *)标题selectot:(SEL)选择器;
@end //在BaseView.M
(空隙)setBackButtonCaption:(的NSString *)标题{
UIBarButtonItem *backButton =[[UIBarButtonItem alloc] init];
backButton.title= caption;
self.navigationItem.backBarButtonItem = backButton;
[backButton release];
} - (无效)setRightButtonCaption:(的NSString *)标题selectot:(SEL)选择{
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc] init];
rightButton.title = caption;
rightButton.target= self;
[rightButton setAction:selector];
self.navigationItem.rightBarButtonItem= rightButton;
[rightButton release];
}
现在,在任何自定义视图,实现这个基本视图调用的方法:
@interface LoginView:BaseController {
在一些方法调用基方法为:
SEL SEL = @selector(switchToForgotPIN);
[超级setRightButtonCaption:@ “忘记PIN” selectot:SEL];
文章来源: How to add a right button to a UINavigationController?