iOS.UIKit.08.UIToolbar

一、案例介绍：点击UIToolbar中的UIBarButtonItem,改变UILabel中的文本，如图01，02，03

图01图02图03

二、案例步骤：

1、选择Simple View Aplication,取名cq.33.工具栏和导航栏，如图04

2、Maim.storyboard,如图05

3、CQ33ViewController.h

#import <UIKit/UIKit.h>

@interface CQ33ViewController : UIViewController

@property (weak,nonatomic) IBOutlet UILabel *label;

- (IBAction)save:(id)sender;

- (IBAction)open:(id)sender;

@end

4、CQ33ViewController.m

#import "CQ33ViewController.h"

@interface CQ33ViewController ()

@end

@implementation CQ33ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)open:(id)sender
{
    self.label.text = @"点击Open";
}
- (IBAction)save:(id)sender
{
    self.label.text = @"点击Save";
}

@end