iOS UIBarButtonItem 对齐方式

Posted 2023-03-11

【中文标题】iOS UIBarButtonItem 对齐方式

【英文标题】：iOS UIBarButtonItem alignments

【发布时间】：2013-10-10 10:32:25

【问题描述】：

在我的应用中，我添加了两个带有导航栏的 UIBarButtonItem。在 ios6 及更低版本中它看起来像这样

但是当我在 iOS7 中运行我的应用程序时，它看起来像

问题是：刷新按钮按下。所以请帮我显示刷新按钮等于“今天”按钮。下面是我正在使用的代码，

 UIBarButtonItem* todayButton = [[UIBarButtonItem alloc] initWithTitle:@"Today"
                                                                style:UIBarButtonItemStyleBordered 
                                                               target:self
                                                               action:@selector(showTodayAction:)];
UIBarButtonItem *refreshButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
                                                                              target:self
                                                                              action:@selector(refreshAction:)];
refreshButton.style = UIBarButtonItemStyleBordered;

    UIBarButtonItem *negativeSeperator = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace
                                                                                       target:nil
                                                                                       action:nil];
    negativeSeperator.width = -12;

    TransparentToolbar *toolbar = [[TransparentToolbar alloc] initWithFrame:CGRectMake(0, -5, 100, TOOLBAR_HEIGHT)];
    toolbar.items = [NSArray arrayWithObjects:
                     negativeSeperator,
                     refreshButton, todayButton,
                     negativeSeperator,
                     nil];

    UIView *toolbarView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, TOOLBAR_HEIGHT)];
    [toolbarView addSubview:toolbar];

    UIBarButtonItem *toolbarItem = [[UIBarButtonItem alloc] initWithCustomView:toolbarView];

    self.navigationItem.leftBarButtonItem = toolbarItem;

【问题讨论】：

你能看到那个问题***.com/questions/18861201/…

@megan 你有解决方案吗....？

@Megan 你在吗？

【参考方案1】：

试试这样......对不起，我赶时间

pragma 标记我的尝试

UIBarButtonItem* todayButton = [[UIBarButtonItem alloc] initWithTitle:@"Today"
                                                                style:UIBarButtonSystemItemRefresh
                                                               target:self
                                                               action:@selector(goBack)];
UIBarButtonItem *refreshButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
                                                                               target:self
                                                                               action:@selector(goBack)];
refreshButton.style = UIBarButtonItemStyleBordered;

UIBarButtonItem *negativeSeperator = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace
                                                                                   target:nil
                                                                                   action:nil];
negativeSeperator.width = -12;

UIToolbar *toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 100, 44)];
toolbar.items = [NSArray arrayWithObjects:
                 
                 negativeSeperator,refreshButton, todayButton,
                 negativeSeperator,
                 nil];//
 self.navigationItem.leftBarButtonItems = toolbar.items;

【参考方案2】：

我认为不需要其他额外的视图，下面的代码会做你的工作：

UIBarButtonItem* todayButton = [[UIBarButtonItem alloc] initWithTitle:@"Today"
                                                                    style:UIBarButtonItemStyleBordered
                                                                   target:self
                                                                   action:@selector(showTodayAction:)];
    UIBarButtonItem *refreshButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
                                                                                   target:self
                                                                                   action:@selector(refreshAction:)];
    refreshButton.style = UIBarButtonItemStyleBordered;

    self.navigationItem.leftBarButtonItems = [NSArray arrayWithObjects:refreshButton, todayButton, nil];