swift – LeftbarButtonItem删除填充？

概述我想在UINavigationController中使用一个标识作为LeftbarButtonItem,是否可以删除左边的填充？ 不幸的是,我试过： let logoView = UIView(frame: CGRectMake(-15, 0, 44, 44)) logoView.backgroundColor = UIColor.darkGrayColor() var left 我想在UINavigationController中使用一个标识作为leftbarbuttonItem,是否可以删除左边的填充？

不幸的是,我试过：

let logoVIEw = UIVIEw(frame: CGRectMake(-15,44,44))    logoVIEw.backgroundcolor = UIcolor.darkGraycolor()    var leftbarbuttonItem: UIbarbuttonItem = UIbarbuttonItem(customVIEw: logoVIEw)    self.navigationItem.setleftbarbuttonItem(leftbarbuttonItem,animated: false)

但那不起作用. Ill表示此图片中显示的空间：

有任何想法吗？提前致谢.

这是Swift解决方案：

let logoVIEw = UIVIEw(frame: CGRectMake(0,44))    logoVIEw.backgroundcolor = UIcolor.darkGraycolor()    let negativeSpacer = UIbarbuttonItem.init(barbuttonSystemItem: .Fixedspace,target: nil,action: nil)    negativeSpacer.wIDth = -20;    let leftbarbuttonItem: UIbarbuttonItem = UIbarbuttonItem(customVIEw: logoVIEw)    self.navigationItem.leftbarbuttonItems = [negativeSpacer,leftbarbuttonItem]

解决方法 以下是删除自定义左按钮项左侧的填充的示例：

UIbarbuttonItem *backbuttonItem // Assume this exists,filled with our custom vIEw// Create a negative spacer to go to the left of our custom back button,// and pull it right to the edge:UIbarbuttonItem *negativeSpacer = [[UIbarbuttonItem alloc]     initWithbarbuttonSystemItem:UIbarbuttonSystemItemFixedspace     target:nil action:nil];negativeSpacer.wIDth = -5; // Note: We use 5 above b/c that's how many pixels of padding iOS seems to add// Add the two buttons together on the left:self.navigationItem.leftbarbuttonItems = [NSArray     arrayWithObjects:negativeSpacer,backbuttonItem,nil];

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