UINavigationBar中的多個UIBarButtonItems

Question

如何在導航欄中創建多個欄按鈕？

Answer 1

必須使用UIToolbar與按鈕設置工具欄：

// create a toolbar where we can place some buttons 
UIToolbar *toolbar = [[UIToolbar alloc] 
         initWithFrame:CGRectMake(0, 0, 100, 45)]; 
[toolbar setBarStyle: UIBarStyleBlackOpaque]; 

// create an array for the buttons 
NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:3]; 

// create a standard save button 
UIBarButtonItem *saveButton = [[UIBarButtonItem alloc] 
    initWithBarButtonSystemItem:UIBarButtonSystemItemSave 
    target:self 
    action:@selector(saveAction:)]; 
saveButton.style = UIBarButtonItemStyleBordered; 
[buttons addObject:saveButton]; 

// create a spacer between the buttons 
UIBarButtonItem *spacer = [[UIBarButtonItem alloc] 
    initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace 
    target:nil 
    action:nil]; 
[buttons addObject:spacer]; 

// create a standard delete button with the trash icon 
UIBarButtonItem *deleteButton = [[UIBarButtonItem alloc] 
    initWithBarButtonSystemItem:UIBarButtonSystemItemTrash 
    target:self 
    action:@selector(deleteAction:)]; 
deleteButton.style = UIBarButtonItemStyleBordered; 
[buttons addObject:deleteButton]; 

// put the buttons in the toolbar and release them 
[toolbar setItems:buttons animated:NO]; 

// place the toolbar into the navigation bar 
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] 
              initWithCustomView:toolbar]; 

Answer 2

you have to create a view with as much button you required and have to add them on navigation button like following : 

    UIView *parentView1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 60, 44)]; 
     UIButton *infoButton1 = [[UIButton alloc] initWithFrame:CGRectMake(0, 6, 30, 32)]; 
     [infoButton1 setBackgroundImage:[UIImage imageNamed: @"navbtn.png"] forState:UIControlStateNormal]; 
     [infoButton1 setTitle:@"Back" forState:UIControlStateNormal]; 
     infoButton1.titleLabel.font = [UIFont systemFontOfSize:13.0f]; 
     infoButton1.titleLabel.textColor = [UIColor whiteColor]; 
     [infoButton1 addTarget:self action:@selector(backBarButtonClicked) forControlEvents:UIControlEventTouchUpInside]; 
     [parentView1 addSubview:infoButton1]; 
     [infoButton1 release]; 

UIButton *infoButton2 = [[UIButton alloc] initWithFrame:CGRectMake(30, 6, 30, 32)]; 
     [infoButton2 setBackgroundImage:[UIImage imageNamed: @"navbtn.png"] forState:UIControlStateNormal]; 
     [infoButton2 setTitle:@"Back" forState:UIControlStateNormal]; 
     infoButton2.titleLabel.font = [UIFont systemFontOfSize:13.0f]; 
     infoButton2.titleLabel.textColor = [UIColor whiteColor]; 
     [infoButton2 addTarget:self action:@selector(backBarButtonClicked) forControlEvents:UIControlEventTouchUpInside]; 
     [parentView1 addSubview:infoButton2]; 
     [infoButton2 release]; 
     UIBarButtonItem *customBarButtomItem1 = [[UIBarButtonItem alloc] initWithCustomView:parentView1]; 
     [parentView1 release]; 
     self.navigationItem.leftBarButtonItem = customBarButtomItem1; 
     [customBarButtomItem1 release];`enter code here` 

Answer 3

我知道這個問題已經關閉，但是我發現UIToolbar解決方案不靠視覺。

如果您改用第二個UINavigationBar設置UINavigationItem，其標題爲零，並且所需的按鈕可以添加更多按鈕，並有一個與原始視覺匹配的條。

Answer 4

從iOS 5的開始，現在就可以使用setLeftBarButtonItems:animated:或setRightBarButtonItems:animated:

Answer 5

- (void)viewWillAppear 
{ 

    // get a view and : 
    [self.navigationController.navigationBar addSubView:yourView]; 

} 

Answer 6

對於iOS7和較高的做，這是做正確的方式。無需UIToolbar愚蠢。

- (void)viewDidLoad { 

    [super viewDidLoad]; 
    [self configureView]; 

    // create three funky nav bar buttons 
    UIBarButtonItem *one = [[UIBarButtonItem alloc]initWithTitle:@"One" style:UIBarButtonItemStylePlain target:self action:@selector(testMethod)]; 
    UIBarButtonItem *two = [[UIBarButtonItem alloc]initWithTitle:@"Two" style:UIBarButtonItemStylePlain target:self action:@selector(testMethod)]; 
    UIBarButtonItem *three = [[UIBarButtonItem alloc]initWithTitle:@"Three" style:UIBarButtonItemStylePlain target:self action:@selector(testMethod)]; 

    // create a spacer 
    UIBarButtonItem *space = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:self action:nil]; 
    space.width = 30; 

    NSArray *buttons = @[one, space, two, space, three]; 

    self.navigationItem.rightBarButtonItems = buttons; 
} 

我討厭把鏈接作爲答案上，以便它們能夠所以我說從HERE