iOS导航BarButtonItem文字或者图片与屏幕边界的间隔

- (void)createNavigationLeftBarButtonItemWithCustomView:(UIButton *)button

{

UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithCustomView:button];

if ([[[[UIDevice currentDevice] systemVersion] substringToIndex:1] intValue]>=7) {

UIBarButtonItem *negativeSpacer = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];

negativeSpacer.width = -16;

self.navigationItem.leftBarButtonItems = @[negativeSpacer, buttonItem];

}else{

self.navigationItem.leftBarButtonItem = buttonItem;

}

}

其实测试了下左侧的item里旁边应该是16px，右侧是12px，可以去试试噢！

http://www.tuicool.com/articles/3Ufema