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[英]How to remove extra space between SwiftUI List and NavigationBar
[英]How to remove NavigationBar Right space?
我正在玩导航栏按钮我需要一个右边缘的按钮,空间为 0,在谷歌搜索后我发现下面的代码
self.filterButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 80, 45)];
[self.filterButton setBackgroundColor:[UIColor redColor]];
UIImage *buttnImage=[UIImage imageNamed:@"chemistry-filter"];
[self.filterButton setImage:buttnImage forState:UIControlStateNormal];
[self.filterButton addTarget:self action:@selector(filterAction:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *btn2 = [[UIBarButtonItem alloc] initWithCustomView:self.filterButton];
UIBarButtonItem *negativeSpacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
negativeSpacer.width = -25;
[self.navigationItem setRightBarButtonItems:[NSArray arrayWithObjects:negativeSpacer,btn2, nil] animated:YES];
但不幸的是,在 iOS 13negativeSpacer 中不起作用。 任何人都可以建议我解决方案。
让我们试试这个简单的方法,让我们将空间 BarButtonItem 的宽度定义为 self.view.frame.size.width 的宽度self.view.frame.size.width - width of the button
。
self.filterButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 80, 45)];
[self.filterButton setBackgroundColor:[UIColor redColor]];
UIImage *buttnImage=[UIImage imageNamed:@"chemistry-filter"];
[self.filterButton setImage:buttnImage forState:UIControlStateNormal];
[self.filterButton addTarget:self action:@selector(filterAction:)
forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *btn2 = [[UIBarButtonItem alloc]
initWithCustomView:self.filterButton];
UIBarButtonItem *negativeSpacer = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil
action:nil];
negativeSpacer.width = self.view.frame.size.width - 45; // As 45 is the frame width of your filter button
[self.navigationItem setRightBarButtonItems:[NSArray
arrayWithObjects:negativeSpacer,btn2, nil] animated:YES];
希望这可以帮助!
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