怎样在导航条上添加多个item

 情况一：右侧两个按钮

 

 //为导航栏添加右侧按钮1

    UIBarButtonItem *right1 = [[UIBarButtonItem alloc] initWithImage:[[UIImage imageNamed:@"my_share"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] style:UIBarButtonItemStyleDone target:self action:@selector(right1Action:)];

    

    //为导航栏添加右侧按钮2

    UIBarButtonItem *right2 = [[UIBarButtonItem alloc] initWithImage:[[UIImage imageNamed:@"mycollection"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] style:UIBarButtonItemStyleDone target:self action:@selector(right2Action:)];

    

    NSArray *arr = [[NSArray alloc]initWithObjects:right1, right2, nil];

    

    self.navigationItem.rightBarButtonItems = arr;

 

 

 

//右侧导航条点击事件

- (void)right1Action:(UIBarButtonItem *)sender{

 

}

 

- (void)right2Action:(UIBarButtonItem *)sender{

 

}

 

 

情况二：导航条中间两个按钮

1:自定义titleView

   UIView *titleView = [[UIView alloc] initWithFrame:CGRectMake(0, 7, SCREEN_WIDTH * 0.5, 30)];

    

    NSArray *titleArr = [NSArray arrayWithObjects:@"单赏",@"稿件（8）", nil];

    for (int i = 0; i<2; i++) {

        UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];

        button.tag = i;

        button.frame = CGRectMake( (titleView.dc_width/2) * i, 0, titleView.dc_width/2, titleView.dc_height);

        [button addTarget:self action:@selector(doButtonAction:) forControlEvents:UIControlEventTouchUpInside];

        [button setTitle:titleArr[i] forState:UIControlStateNormal];

        [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];

        [button setTitleColor:[UIColor redColor] forState:UIControlStateSelected];

       

 if (button.tag == 0) {

                        button.selected = YES;

                       _selectedBtn = button;

                    }

 

       

        //将循环创建的button都添加到view上面

        [titleView addSubview:button];

 

2: 记录选中button

@property (nonatomic, strong) UIButton *selectedBtn;

 

3:切换按钮点击事件

#pragma mark - button触发的方法

-(void)doButtonAction:(UIButton *)sender {

    

    if (sender != _selectedBtn) {

        

        _selectedBtn.selected = NO;

        sender.selected = YES;

        _selectedBtn = sender;

        

    }else{

        

        _selectedBtn.selected = YES;

    }

}

 

        

    }

    

    self.navigationItem.titleView = titleView;