UINavigationController导航栏中添加多个UIBarButtonItem

UINavigationController导航栏中添加多个UIBarButtonItem  

2011-02-16 13:56:33|  分类： iPhone&iPad开发 |  标签：uinavigationcontroller  uibarbuttonitem  uitoolbar  |举报|字号 订阅

 

 

（方法一）如果你使用自己的图片，那么就用这种方法：    

    UIView *leftView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 51, 32)];

        UIButton *leftButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 51, 32)];

        [leftButton setBackgroundImage:[UIImage imageNamed:@"back.png"]forState:UIControlStateNormal];

        [leftButton setBackgroundImage:[UIImage imageNamed:@"back_pressed.png"]forState:UIControlStateHighlighted];

        [leftView addSubview:leftButton];

        

（方法二）如果你没有图片，只使用文字就用这种方法：    

        self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithCustomView:leftView];

        

        

（方法三）如果你的图片能完美的和UIBarButtonItem衔合，就用这种方法：    

        self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImageimageNamed:@"back.png"] style:UIBarButtonItemStylePlain target:selfaction:@selector(backActions:)];

 

我建议还是用第一中方法。

如果想使用更多地功能，往下看。

 

 

 

转自王军的博客

在实际的开发中，导航器是最重要的容器之一，我们经常要在导航栏中添加各种样式的按钮，添加一个按钮很简单，代码如下：

UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithTitle:@"Setting" style:UITabBarSystemItemContacts 
                                                                 target:self action:@selector(clickSettings:)];          
self.navigationItem.rightBarButtonItem = anotherButton; 
[anotherButton release];

其中按钮的样式可以有多种，具体的可以参考：https://developer.apple.com/library/ios/prerelease/#documentation/UIKit/Reference/UIBarButtonItem_Class/

在有些项目中要在右面添加两个按钮，实现的样式如下图：

实现的代码如下图：

UIToolbar* tools = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 150, 45)]; 
[tools setTintColor:[self.navigationController.navigationBar tintColor]]; 
[tools setAlpha:[self.navigationController.navigationBar alpha]]; 
NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:2];

UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd 
                        target:self action:@selector(clickSettings:)];

UIBarButtonItem *anotherButton1 = [[UIBarButtonItem alloc] initWithTitle:@"Edit" style:UITabBarSystemItemContacts 
                                                        target:self action:@selector(clickEdit:)]; 
[buttons addObject:anotherButton]; 
[anotherButton release]; 
[buttons addObject:anotherButton1]; 
[anotherButton1 release]; 
[tools setItems:buttons animated:NO]; 
[buttons release]; 
UIBarButtonItem *myBtn = [[UIBarButtonItem alloc] initWithCustomView:tools]; 
self.navigationItem.rightBarButtonItem = myBtn;

[myBtn release]; 
[tools release];

UIToolbar* tools = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 150, 45)]; 
[tools setTintColor:[self.navigationController.navigationBar tintColor]]; 
[tools setAlpha:[self.navigationController.navigationBar alpha]]; 
NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:2];

UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd 
                        target:self action:@selector(clickSettings:)];

UIBarButtonItem *anotherButton1 = [[UIBarButtonItem alloc] initWithTitle:@"Edit" style:UITabBarSystemItemContacts 
                                                        target:self action:@selector(clickEdit:)]; 
[buttons addObject:anotherButton]; 
[anotherButton release]; 
[buttons addObject:anotherButton1]; 
[anotherButton1 release]; 
[tools setItems:buttons animated:NO]; 
[buttons release]; 
UIBarButtonItem *myBtn = [[UIBarButtonItem alloc] initWithCustomView:tools]; 
self.navigationItem.rightBarButtonItem = myBtn;

[myBtn release]; 
[tools release];

http://blog.sina.com.cn/s/blog_677089db0100um5p.html

次方法验证，暂时不可行，没查明原因

UIView * rightButtonParentView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 44)];
 

  rightButtonParentView.backgroundColor = [UIColor clearColor];
    
    int buttonSize = 32;
    int rightOffset = 20;
    UIButton * setButton = [[UIButton alloc] initWithFrame:CGRectMake(rightButtonParentView.frame.size.width - buttonSize - rightOffset, 6, buttonSize, buttonSize)];
    [setButton setBackgroundImage:[UIImage imageNamed:@"star.png"] forState:UIControlStateNormal];
    [setButton addTarget:self action:@selector(NSlog) forControlEvents:UIControlEventTouchUpInside];
    [rightButtonParentView addSubview:setButton];
    [setButton release];
    
    UIButton * searchButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 6, buttonSize, buttonSize)];
    [searchButton setBackgroundImage:[UIImage imageNamed:@"star.png"] forState:UIControlStateNormal];
    [searchButton addTarget:self action:@selector(NSlog) forControlEvents:UIControlEventTouchUpInside];
    [rightButtonParentView addSubview:searchButton];
    [searchButton release];
    
    
    UIBarButtonItem * rightButtonItem = [[UIBarButtonItem alloc] initWithCustomView:rightButtonParentView];
    [rightButtonParentView release];                            
    self.navigationItem.rightBarButtonItem = rightButtonItem;
    [rightButtonItem release];

 

 

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