以编程方式向导航栏添加按钮

嗨，我需要设置按钮在右侧，在导航栏，以编程方式，这样，如果我按下按钮，我将执行一些行动。我已经创建了导航栏，通过编程;

navBar=[[UINavigationBar alloc]initWithFrame:CGRectMake(0,0,320,44) ];

类似地，我需要在导航栏的右侧添加按钮,

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];

我试了所有这些方法，但没有一个显示右手边的按钮。

153989 次浏览
小开
最佳答案

Inside my UIViewController derived class, I am using the following inside viewDidLoad:

UIBarButtonItem *flipButton = [[UIBarButtonItem alloc]
initWithTitle:@"Flip"
style:UIBarButtonItemStyleBordered
target:self
action:@selector(flipView:)];
self.navigationItem.rightBarButtonItem = flipButton;
[flipButton release];

This adds a button to the right hand side with the title Flip, which calls the method:

-(IBAction)flipView

This looks very much like you #3, but it is working within my code.

小开 
self.navigationItem.rightBarButtonItem=[[[UIBarButtonItem alloc]initWithTitle:@"Save" style:UIBarButtonItemStylePlain target:self action:@selector(saveAction:)]autorelease];


-(void)saveAction:(UIBarButtonItem *)sender{


//perform your action


}
小开

Use following code:

UIBarButtonItem *customBtn=[[UIBarButtonItem alloc] initWithTitle:@"Custom" style:UIBarButtonItemStylePlain target:self action:@selector(customBtnPressed)];
[self.navigationItem setRightBarButtonItem:customBtn];
小开

Simple use native editBarButton like this 

self.navigationItem.rightBarButtonItem = self.editButtonItem;
[self.navigationItem.rightBarButtonItem setAction:@selector(editBarBtnPressed)];

and then 

- (void)editBarBtnPressed {
if ([infoTable isEditing]) {
[self.editButtonItem setTitle:@"Edit"];
[infoTable setEditing:NO animated:YES];
}
else {
[self.editButtonItem setTitle:@"Done"];
[infoTable setEditing:YES animated:YES];
}
}

Have fun...!!!

小开 
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];

///// called event

-(IBAction)Back_btn:(id)sender
{
//Your code here
}

SWIFT:

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
}
小开

In ViewDidLoad method of ViewController.m 

UIBarButtonItem *cancel = [[UIBarButtonItem alloc] initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:self action:@selector(back)];


[self.navigationItem setLeftBarButtonItem:cancel];

"(back)" selector is a method to dissmiss the current ViewController

小开

Hello everyone !! I created the solution to the issue at hand where Two UIInterface orientations are wanted using the UIIMagePicker.. In my ViewController where I handle the segue to the UIImagePickerController

**I use a..

-(void) editButtonPressed:(id)sender {
BOOL editPressed = YES;
NSUserDefaults *boolDefaults = [NSUserDefaults standardUserDefaults];
[boolDefaults setBool:editPressed forKey:@"boolKey"];
[boolDefaults synchronize];


[self performSegueWithIdentifier:@"photoSegue" sender:nil];


}

**

Then in the AppDelegate Class I do the following. 

- (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;
}
小开

To add search button on navigation bar use this code:

 UIBarButtonItem *searchButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:@selector(toggleSearch:)];
self.navigationController.navigationBar.topItem.rightBarButtonItem = searchButton;

and implement following method:

- (IBAction)toggleSearch:(id)sender
{
// do something or handle Search Button Action.
}
小开

Swift version, add this in viewDidLoad:

var doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Plain, target: self, action: "doneButton:")
navigationItem.rightBarButtonItem = doneButton

And this in your View Controller class

func doneButton(sender: UIBarButtonItem) {
println(111)
}
小开

How to add an add button to the navbar in swift:

self.navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .Add, target: self, action: "onAdd:")

onAdd:

func onAdd(sender: AnyObject) {
}
小开

Try this.It work for me. Add button to navigation bar programmatically, Also we set image to navigation bar button,

Below is Code:-

  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.
}
小开

If you are not looking for a BarButtonItem but simple button on navigationBar then below code works:

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];

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