IOS开发（10）UIBarButtonItem导航栏添加按钮

来源：互联网发布：记忆力训练软件编辑：程序博客网时间：2024/05/21 14:53

1 前言

UIBarButtonItem为导航栏按钮，在导航栏的左侧和右侧，他们具有许多种不同的形状和形式。

2 代码讲解

ZYViewController.m

- (void)viewDidLoad{    [super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.    self.view.backgroundColor = [UIColor whiteColor];    self.title = @"First";    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Add" style:UIBarButtonItemStylePlain target:self action:@selector(perFormAdd:)];//为导航栏添加右侧按钮    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(perFormAdd:)];//为导航栏左侧添加系统自定义按钮}-(void)perFormAdd:(id)paramSender{    NSLog(@"Action method got called.");}

运行结果：

当点击左边和右边的按钮的时候，控制台显示：

2013-04-23 21:40:58.982 UIBarButtonItemTest[660:c07] Action method got called.

2013-04-23 21:41:02.598 UIBarButtonItemTest[660:c07] Action method got called.

ZYUIBarButtonViewController.m:

- (void)viewDidLoad{    [super viewDidLoad];// Do any additional setup after loading the view.    self.view.backgroundColor = [UIColor whiteColor];    self.title = @"Second";    UISwitch *simpleSwitch = [[UISwitch alloc] init];//实例化一个选择开关    simpleSwitch.on = YES;//开关设置为开启状态    [simpleSwitch addTarget:self action:@selector(switchChanged:) forControlEvents:UIControlEventValueChanged];//添加事件    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:simpleSwitch];//将开关控件赋给导航栏右按钮}-(void)switchChanged:(UISwitch *)paramSender{    if ([paramSender isOn]) {//如果开关状态为开启        NSLog(@"Switch is on.");    }else{        NSLog(@"Switch is off.");    }}

运行结果：

当拨动开关控制台显示：

2013-04-23 21:46:46.692 UIBarButtonItemTest[727:c07] Switch is off.

2013-04-23 21:46:47.493 UIBarButtonItemTest[727:c07] Switch is on.

3 结语

以上就是导航栏按钮的实例，希望对大家有所帮助。

Demo实例下载地址：http://download.csdn.net/detail/u010013695/5292886