如何將幾個UIBarButtonItems添加到NavigationBar？

Question

我想在UINavigationBar上繪製多個按鈕。這些將在右側或左側。

Answer 1

我做了一個例子，在NaviagationBar的右側有兩個按鈕（即Edit和+）。 1）您必須創建一個NSMutableArray（即示例中的「按鈕」），並在NSMutableArray（即按鈕）中添加UIBarButtonItem（即示例中的bi1和bi2）。

2）將NSMutableArray（即實例中的按鈕）添加到工具欄（即在示例中爲UIToolbar *tools）。

3）將工具欄添加到NavigationBar。

NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:2]; 
UIToolbar *tools = [[UIToolbar alloc] 
        initWithFrame:CGRectMake(0.0f, 0.0f, 90.0f, 55.01f)]; 
// Add bar button1. 

UIBarButtonItem *bi1 = [[UIBarButtonItem alloc] initWithTitle:@"Edit" style:UIBarButtonItemStylePlain target:self action:@selector(Edit:)]; 
bi1.style = UIBarButtonItemStyleBordered; 
bi1.width = 45; 
[buttons addObject:bi1]; 
//[bi1 release]; Do not release if ARC enabled. 

// Add bar button2. 
UIBarButtonItem *bi2 = [[UIBarButtonItem alloc] initWithTitle:@"+" style:UIBarButtonItemStylePlain target:self action:@selector(Add:)]; 
bi2.style = UIBarButtonItemStyleBordered; 
[buttons addObject:bi2]; 
//[bi2 release]; Do not release if ARC enabled. 

// Add buttons to toolbar and toolbar to nav bar. 
[tools setItems:buttons animated:NO]; 
//[buttons release]; Do not release if ARC enabled. 

// Add toolbar to nav bar. 
UIBarButtonItem *twoButtons = [[UIBarButtonItem alloc] initWithCustomView:tools]; 
[tools release]; 
self.navigationItem.rightBarButtonItem = twoButtons; 
//[twoButtons release]; Do not release if ARC enabled. 

Answer 2

做在你的XIB文件，並進行性能或只是變量在頭

@property (nonatomic, retain) IBOutlet UIBarButtonItem *itemOne; 

，然後在廈門國際銀行連接。享受

Answer 3

在代碼中創建一個新的UIToolbar並將您的按鈕添加到工具欄。然後設置self.navigationItem.rightBarButton到新創建的工具欄（注意例子是不ARC，所以你可能需要刪除呼叫釋放）：

// create a toolbar to have two buttons in the right 
UIToolbar* tools = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 100, 44.01)]; 

// create the array to hold the buttons, which then gets added to the toolbar 
NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:3]; 

// create a standard "add" button 
UIBarButtonItem* bi = [[UIBarButtonItem alloc] 
         initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addRow)]; 
bi.style = UIBarButtonItemStyleBordered; 
[buttons addObject:bi]; 
[bi release]; 

// create a spacer 
bi = [[UIBarButtonItem alloc] 
     initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil]; 
[buttons addObject:bi]; 
[bi release]; 

[buttons addObject:self.editButtonItem]; 

// stick the buttons in the toolbar 
[tools setItems:buttons animated:NO]; 

[buttons release]; 

// and put the toolbar in the nav bar 
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:tools]; 

Answer 4

在這裏，我給你，我用按鈕的示例代碼以及標籤。你可以創建按鈕，而不是標籤和圖像我創建的。我希望它會幫助你

- (void) setLabelForPotraite { 

    bar = [self.navigationController navigationBar];  
    [bar setBackgroundColor:[UIColor clearColor]]; 
    barImg=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"navImg.png"]]; 
    [bar addSubview:barImg]; 


    tick_img_lbl=[[UIImageView alloc]initWithFrame:CGRectMake(86, 6,34, 33)]; 
    tick_img_lbl.image=[UIImage imageNamed:@"tick-1.png"]; 
    [bar addSubview:tick_img_lbl]; 
    [tick_img_lbl release]; 

    tickCount_lbl=[[UILabel alloc] initWithFrame:CGRectMake(126, 2, 50, 40)]; 
    tickCount_lbl.text=@""; 
    tickCount_lbl.font=[UIFont fontWithName:@"Arial" size:24.0]; 
    [tickCount_lbl setTextAlignment:UITextAlignmentCenter]; 
    tickCount_lbl.font = [UIFont boldSystemFontOfSize:24.0]; 
    tickCount_lbl.textColor=[UIColor whiteColor]; 
    tickCount_lbl.backgroundColor=[UIColor clearColor]; 
    [bar addSubview:tickCount_lbl]; 
    [tickCount_lbl release]; 

    cross_img_lbl=[[UIImageView alloc]initWithFrame:CGRectMake(181, 6, 34, 33)]; 
    cross_img_lbl.image=[UIImage imageNamed:@"x_green.png"]; 

    [bar addSubview:cross_img_lbl]; 
    [cross_img_lbl release]; 

    crossCount_lbl=[[UILabel alloc] initWithFrame:CGRectMake(221, 2, 50, 40)]; 
    crossCount_lbl.text=@""; 
    crossCount_lbl.font=[UIFont fontWithName:@"Arial" size:24.0]; 
    crossCount_lbl.font = [UIFont boldSystemFontOfSize:24.0]; 
    crossCount_lbl.textColor=[UIColor whiteColor]; 
    [crossCount_lbl setTextAlignment:UITextAlignmentCenter]; 
    crossCount_lbl.backgroundColor=[UIColor clearColor]; 
    [bar addSubview:crossCount_lbl]; 
    [crossCount_lbl release]; 

    master_img_lbl=[[UIImageView alloc]initWithFrame:CGRectMake(269, 6, 34, 33)]; 
    master_img_lbl.image=[UIImage imageNamed:@"thumb.png"]; 
    [bar addSubview:master_img_lbl]; 
    [master_img_lbl release]; 

}

如果理解要不然那麼任何問題PLZ通知我。