工具栏UIToolbar

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//工具栏UIToolbar

#import "ViewController.h"

@interface ViewController ()
@property (strong,nonatomic) UILabel *label;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    CGRect screen = [[UIScreen mainScreen] bounds];
    UIToolbar *bar1 = [[UIToolbar alloc] initWithFrame:CGRectMake(0, screen.size.height-44, screen.size.width, 44)];
    UIBarButtonItem *saveButton = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:self action:@selector(save:)];
    UIBarButtonItem *openButton = [[UIBarButtonItem alloc]initWithTitle:@"open" style:UIBarButtonItemStylePlain target:self action:@selector(open:)];
    UIBarButtonItem *flexibleButton = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
    bar1.items = @[saveButton,flexibleButton,openButton];
    [self.view addSubview:bar1];
    
    self.label = [[UILabel alloc]initWithFrame:CGRectMake(160, 200, 200, 200)];
    self.label.text = @"label的默认状态";
    [self.view addSubview:self.label];
}
-(void)save:(id)sender{
    self.label.text = @"点击了save";
}
-(void)open:(id)sender{
    self.label.text = @"点击了open";
}

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


@end