1  第一种

self.navigationController.navigationBar.topItem.leftBarButtonItem = nil;

UIToolbar*tools = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, 110, 39)];

//解决出现的那条线

tools.clipsToBounds = YES;

//解决tools背景颜色的问题

[tools setBackgroundImage:[UIImage new]forToolbarPosition:UIBarPositionAny                      barMetrics:UIBarMetricsDefault];

[tools setShadowImage:[UIImage new]

forToolbarPosition:UIToolbarPositionAny];

//添加两个button

NSMutableArray*buttons=[[NSMutableArray alloc]initWithCapacity:2];

button3=[[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:myInfo.messageTopImageNameStr] style: UIBarButtonItemStyleDone target:self action:@selector(addressBook)];

UIBarButtonItem*button2=[[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"more"] style: UIBarButtonItemStyleDone target:self action:@selector(selectMenu)];

button3.tintColor=[UIColor whiteColor];

button2.tintColor=[UIColor whiteColor];

[buttons addObject:button3];

[buttons addObject:button2];

[tools setItems:buttons animated:NO];

UIBarButtonItem*btn=[[UIBarButtonItem    alloc]initWithCustomView:tools];

self.navigationController.navigationBar.topItem.rightBarButtonItem = btn;

2 第二种

//两个按钮的父类view

UIView *rightButtonView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 50)];

//历史浏览按钮

UIButton *historyBtn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];

[rightButtonView addSubview:historyBtn];

[historyBtn setImage:[UIImage imageNamed:@"button_history"] forState:UIControlStateNormal];

[historyBtn addTarget:self action:@selector(historyBtnEvent) forControlEvents:UIControlEventTouchUpInside];

#pragma mark >>>>>主页搜索按钮

//主页搜索按钮

UIButton *mainAndSearchBtn = [[UIButton alloc] initWithFrame:CGRectMake(50, 0, 50, 50)];

[rightButtonView addSubview:mainAndSearchBtn];

[mainAndSearchBtn setImage:[UIImage imageNamed:@"button_filter-"] forState:UIControlStateNormal];

[mainAndSearchBtn addTarget:self action:@selector(mainAndSearchBtnEvent) forControlEvents:UIControlEventTouchUpInside];

//把右侧的两个按钮添加到rightBarButtonItem

UIBarButtonItem *rightCunstomButtonView = [[UIBarButtonItem alloc] initWithCustomView:rightButtonView];

self.navigationItem.rightBarButtonItem = rightCunstomButtonView;