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

问题描述

使用LeftBarItems和RightBarItems时，我遇到过多的UIBarButtonItem填充/间距（见下图）。 UIBarButtonItems上使用的图标不包含额外的填充。所以我想知道造成这种情况的原因是什么？

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

我使用它来删除第一个项目之前的空间。

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，只能使用带有图像的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

---

像这样使用：

---

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];

这篇关于iOS7过多的导航栏按钮填充的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！