以编程方式将按钮添加到导航栏
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【中文标题】以编程方式将按钮添加到导航栏【英文标题】：Add button to navigationbar programmatically 【发布时间】：2011-02-20 08:11:28 【问题描述】：您好，我需要在右侧的导航栏中以编程方式设置按钮，这样如果我按下按钮，我将执行一些操作。我以编程方式创建了导航栏；
navBar=[[UINavigationBar alloc]initWithFrame:CGRectMake(0,0,320,44) ];
同样，我需要在此导航栏的右侧添加按钮。对于我使用的，
1.
UIView* container = [[UIView alloc] init];
// create a button and add it to the container
UIButton* button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 130, 44.01)];
[container addSubview:button];
[button release];
// add another button
button = [[UIButton alloc] initWithFrame:CGRectMake(160, 0, 50, 44.01)];
[container addSubview:button];
[button release];
// now create a Bar button item
UIBarButtonItem* item = [[UIBarButtonItem alloc] initWithCustomView:container];
// set the nav bar's right button item
self.navigationItem.rightBarButtonItem = item;
[item release];
2.
UIImage *im;
im=[UIImage imageNamed:@"back.png"];
[button setImage:im forState:UIControlStateNormal];
[im release];
backButton = [[UIBarButtonItem alloc] initWithCustomView:button];
[backButton setImageInsets:UIEdgeInsetsMake(0, -10,5, 5)];
[self.navigationItem setRightBarButtonItem:backButton];
3.
UIBarButtonItem *refreshItem = [[UIBarButtonItem alloc] initWithTitle:@"button" style:UIBarButtonItemStylePlain target:self action:@selector(refreshLogsAction:)];
self.navigationItem.rightBarButtonItem = refreshItem;
[refreshItem release];
我尝试了所有这些方法，但都没有显示右侧的按钮。
【问题讨论】：
【参考方案1】：在我的UIViewController 派生类中，我在viewDidLoad 中使用以下内容：
UIBarButtonItem *flipButton = [[UIBarButtonItem alloc]
initWithTitle:@"Flip"
style:UIBarButtonItemStyleBordered
target:self
action:@selector(flipView:)];
self.navigationItem.rightBarButtonItem = flipButton;
[flipButton release];
这会在右侧添加一个标题为 Flip 的按钮，它会调用该方法：
-(IBAction)flipView
这看起来很像你#3，但它在我的代码中工作。
【讨论】：
我需要在选择器中添加一个冒号 - "action:@selector(flipView:)];【参考方案2】：self.navigationItem.rightBarButtonItem=[[[UIBarButtonItem alloc]initWithTitle:@"Save" style:UIBarButtonItemStylePlain target:self action:@selector(saveAction:)]autorelease];
-(void)saveAction:(UIBarButtonItem *)sender
//perform your action
【讨论】：
【参考方案3】：使用以下代码：
UIBarButtonItem *customBtn=[[UIBarButtonItem alloc] initWithTitle:@"Custom" style:UIBarButtonItemStylePlain target:self action:@selector(customBtnPressed)];
[self.navigationItem setRightBarButtonItem:customBtn];
【讨论】：
【参考方案4】：像这样简单使用原生的editBarButton
self.navigationItem.rightBarButtonItem = self.editButtonItem;
[self.navigationItem.rightBarButtonItem setAction:@selector(editBarBtnPressed)];
然后
- (void)editBarBtnPressed
if ([infoTable isEditing])
[self.editButtonItem setTitle:@"Edit"];
[infoTable setEditing:NO animated:YES];
else
[self.editButtonItem setTitle:@"Done"];
[infoTable setEditing:YES animated:YES];
玩得开心……！！！
【讨论】：
【参考方案5】：UIImage* image3 = [UIImage imageNamed:@"back_button.png"];
CGRect frameimg = CGRectMake(15,5, 25,25);
UIButton *someButton = [[UIButton alloc] initWithFrame:frameimg];
[someButton setBackgroundImage:image3 forState:UIControlStateNormal];
[someButton addTarget:self action:@selector(Back_btn:)
forControlEvents:UIControlEventTouchUpInside];
[someButton setShowsTouchWhenHighlighted:YES];
UIBarButtonItem *mailbutton =[[UIBarButtonItem alloc] initWithCustomView:someButton];
self.navigationItem.leftBarButtonItem =mailbutton;
[someButton release];
///// 调用事件
-(IBAction)Back_btn:(id)sender
//Your code here
斯威夫特：
var image3 = UIImage(named: "back_button.png")
var frameimg = CGRect(x: 15, y: 5, width: 25, height: 25)
var someButton = UIButton(frame: frameimg)
someButton.setBackgroundImage(image3, for: .normal)
someButton.addTarget(self, action: Selector("Back_btn:"), for: .touchUpInside)
someButton.showsTouchWhenHighlighted = true
var mailbutton = UIBarButtonItem(customView: someButton)
navigationItem?.leftBarButtonItem = mailbutton
func back_btn(_ sender: Any)
//Your code here
【讨论】：
【参考方案6】：在 ViewController.m 的 ViewDidLoad 方法中
UIBarButtonItem *cancel = [[UIBarButtonItem alloc] initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:self action:@selector(back)];
[self.navigationItem setLeftBarButtonItem:cancel];
"(back)"选择器是解除当前ViewController的方法
【讨论】：
【参考方案7】：大家好！！我为手头的问题创建了解决方案，即使用 UIIMagePicker 需要两个 UIInterface 方向。在我处理与 UIImagePickerController 的 segue 的 ViewController 中
**我用一个..
-(void) editButtonPressed:(id)sender
BOOL editPressed = YES;
NSUserDefaults *boolDefaults = [NSUserDefaults standardUserDefaults];
[boolDefaults setBool:editPressed forKey:@"boolKey"];
[boolDefaults synchronize];
[self performSegueWithIdentifier:@"photoSegue" sender:nil];
**
然后在 AppDelegate 类中我执行以下操作。
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
BOOL appDelBool;
NSUserDefaults *boolDefaults = [NSUserDefaults standardUserDefaults];
appDelBool = [boolDefaults boolForKey:@"boolKey"];
if (appDelBool == YES)
return (UIInterfaceOrientationMaskPortrait);
else
return UIInterfaceOrientationMaskLandscapeLeft;
【讨论】：
抱歉问题是什么！！ :P【参考方案8】：要在导航栏上添加搜索按钮，请使用以下代码：
UIBarButtonItem *searchButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:@selector(toggleSearch:)];
self.navigationController.navigationBar.topItem.rightBarButtonItem = searchButton;
并实现以下方法：
- (IBAction)toggleSearch:(id)sender
// do something or handle Search Button Action.
【讨论】：
非常感谢您的解决方案。 topItem 是我错过的东西【参考方案9】：Swift 版本，在 viewDidLoad 中添加：
var doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Plain, target: self, action: "doneButton:")
navigationItem.rightBarButtonItem = doneButton
这在你的视图控制器类中
func doneButton(sender: UIBarButtonItem)
println(111)
【讨论】：
【参考方案10】：如何在 swift 中向导航栏添加添加按钮：
self.navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .Add, target: self, action: "onAdd:")
添加：
func onAdd(sender: AnyObject)
【讨论】：
【参考方案11】：试试这个。它对我有用。 以编程方式将按钮添加到导航栏，我们还将图像设置为导航栏按钮，
下面是代码：-
UIBarButtonItem *Savebtn=[[UIBarButtonItem alloc]initWithImage:
[[UIImage imageNamed:@"bt_save.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]
style:UIBarButtonItemStylePlain target:self action:@selector(SaveButtonClicked)];
self.navigationItem.rightBarButtonItem=Savebtn;
-(void)SaveButtonClicked
// Add save button code.
【讨论】：
【参考方案12】：如果您不是在寻找 BarButtonItem 而是在 navigationBar 上寻找简单的按钮，那么下面的代码可以工作：
UIButton *aButton = [UIButton buttonWithType:UIButtonTypeCustom];
[aButton setBackgroundImage:[UIImage imageNamed:@"NavBar.png"] forState:UIControlStateNormal];
[aButton addTarget:self
action:@selector(showButtonView:)
forControlEvents:UIControlEventTouchUpInside];
aButton.frame = CGRectMake(260.0, 10.0, 30.0, 30.0);
[self.navigationController.navigationBar addSubview:aButton];
【讨论】：
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