导航栏添加按钮

UIToolbar* tools = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 100, 40)];  
[tools setBarTintColor:[UIColor whiteColor]];  
NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:2];  
UIBarButtonItem *saveButton = [[UIBarButtonItem alloc]initWithTitle:@"保存" style:UITabBarSystemItemContacts target:self action:@selector(save:)];  
UIBarButtonItem *pulishButton = [[UIBarButtonItem alloc]initWithTitle:@"发布" style:UITabBarSystemItemContacts target:self action:@selector(pulish:)];  
[pulishButton setTintColor:kMainColor];  
[buttons addObject:saveButton];  
[buttons addObject:pulishButton];  
[tools setItems:buttons animated:NO];  
UIBarButtonItem *myBtn = [[UIBarButtonItem alloc] initWithCustomView:tools];  
self.navigationItem.rightBarButtonItem = myBtn;  

UIBarButtonItem *pulishButton = [[UIBarButtonItem alloc]initWithTitle:@"发布" style:UITabBarSystemItemContacts target:self action:@selector(pulish:)];
[pulishButton setTintColor:kMainColor];
UIBarButtonItem *saveButton = [[UIBarButtonItem alloc]initWithTitle:@"保存" style:UITabBarSystemItemContacts target:self action:@selector(save:)];
[self.navigationItem setRightBarButtonItems:[NSArray arrayWithObjects: pulishButton,saveButton,nil]];

UIButton *saveButton=[UIButton buttonWithType:(UIButtonTypeCustom)];
[saveButton setTitle:@"保存" forState:(UIControlStateNormal)];
[saveButton setTitleColor:[UIColor whiteColor] forState:(UIControlStateNormal)];
saveButton.layer.masksToBounds=YES;
saveButton.layer.cornerRadius=3;
saveButton.titleLabel.font=[UIFont systemFontOfSize:15];
saveButton.backgroundColor=kMainColor;
[saveButton addTarget:self action:@selector(save:) forControlEvents:UIControlEventTouchUpInside];

pulishButton.frame = CGRectMake(0, 0, 50, 30);
saveButton.frame=CGRectMake(0, 0, 50, 30);

UIBarButtonItem *pulish = [[UIBarButtonItem alloc] initWithCustomView:pulishButton];
UIBarButtonItem *save = [[UIBarButtonItem alloc] initWithCustomView:saveButton];

[self.navigationItem setRightBarButtonItems:[NSArray arrayWithObjects: pulish, save,nil]];