IOS UINavigationItem添加多按钮

来源：互联网发布：北京银行网银mac版编辑：程序博客网时间：2024/05/02 04:40

虽说不难,但查资料还是花了点时间,这里记录一下

方法1

    NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:2];        UIBarButtonItem *negativeSeperator = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];    negativeSeperator.width = -16;     // 修改到边界的距离    [buttons addObject:negativeSeperator];        UIBarButtonItem *categoryButton = [[UIBarButtonItem alloc] initWithImage:VSD_LOCAL_IMAGE(@"icon-category") style:UIBarButtonItemStylePlain target:self action:@selector(categoryButtonClicked:)];    [categoryButton setTintColor:[UIColor colorWithRed:0.25f green:0.25f blue:0.25f alpha:1.0f]];    [buttons addObject:categoryButton];        [buttons addObject:self.navigationItem.leftBarButtonItem];        UIToolbar* tools = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 100, 45)];    tools.clipsToBounds = YES;        // 去除UIToolbar上方边框线    [tools setTintColor:[self.navigationController.navigationBar tintColor]];    [tools setAlpha:[self.navigationController.navigationBar alpha]];    [tools setItems:buttons animated:NO];    UIBarButtonItem *left = [[UIBarButtonItem alloc] initWithCustomView:tools];    self.navigationItem.leftBarButtonItem = left;

优点是自由灵活,就是代码太繁琐

方法2

    UIBarButtonItem *categoryButton = [[UIBarButtonItem alloc] initWithImage:VSD_LOCAL_IMAGE(@"icon-category") style:UIBarButtonItemStylePlain target:self action:@selector(categoryButtonClicked:)];    [categoryButton setTintColor:[UIColor colorWithRed:0.25f green:0.25f blue:0.25f alpha:1.0f]];    self.navigationItem.leftBarButtonItems=[[NSArray alloc] initWithObjects:categoryButton, self.navigationItem.leftBarButtonItem, nil];

用的系统方法,代码简洁

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