iOS7 过多的导航栏按钮填充 [英] iOS7 excessive navigationbar button padding

问题描述

我在使用 LeftBarItems 和 RightBarItems 时遇到过多的 UIBarButtonItem 填充/间距(见下图).UIBarButtonItems 上使用的图标不包含额外的填充.所以我想知道这是什么原因造成的?

I'm experiencing excessive UIBarButtonItem padding/spacing when using the LeftBarItems and RightBarItems (see image below). The icons used on the UIBarButtonItems do not contain extra padding. So I would like to know what's causing this?

推荐答案

我使用它是为了删除第一项之前的空间.

I use this in order to remove space before the first item.

但是，它在 UIBarButtonSystemItemAdd 等系统项之间不起作用，仅适用于具有图像的 UIBarButtonItem.

However it doesn't work between system items like UIBarButtonSystemItemAdd, only with UIBarButtonItem that has an image.

@interface UIBarButtonItem (NegativeSpacer)
+(UIBarButtonItem*)negativeSpacerWithWidth:(NSInteger)width;
@end
@implementation UIBarButtonItem (NegativeSpacer)
+(UIBarButtonItem*)negativeSpacerWithWidth:(NSInteger)width {
    UIBarButtonItem *item = [[UIBarButtonItem alloc]
                             initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace
                             target:nil
                             action:nil];
    item.width = (width >= 0 ? -width : width);
    return item;
}
@end

<小时>

像这样使用它:

---

Use it like this:

UIBarButtonItem *item0 = [UIBarButtonItem negativeSpacerWithWidth:13];
UIBarButtonItem *item1 = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"sidebar.png"]
                                                          style:UIBarButtonItemStylePlain
                                                         target:vc
                                                         action:@selector(sideMenuAction:)];
NSArray* items = @[item0, item1];
[vc.navigationItem setLeftBarButtonItems:items animated:NO];
[vc.navigationItem setLeftItemsSupplementBackButton:YES];

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