我有 UIToolbar,我想给它添加大小相同的 UIButtons。
目前,我有:
CGFloat width = self.toolbarMapMenu.frame.size.width / 4.0;
CGFloat height = self.toolbarMapMenu.frame.size.height;
btn0 = [self createMenuButton"a" width:width height:height];
btn1 = [self createMenuButton"b" width:width height:height];
btn2 = [self createMenuButton"c" width:width height:height];
btn3 = [self createMenuButton"d" width:width height:height];
UIBarButtonItem *it0 = [[UIBarButtonItem alloc] initWithCustomView:btn0];
UIBarButtonItem *it1 = [[UIBarButtonItem alloc] initWithCustomView:btn1];
UIBarButtonItem *it2 = [[UIBarButtonItem alloc] initWithCustomView:btn2];
UIBarButtonItem *it3 = [[UIBarButtonItem alloc] initWithCustomView:btn3];
[self.toolbarMapMenu setItems:[NSArray arrayWithObjects:
it0, it1, it2, it3,
nil]
];
还有其他地方
-(UIButton *)createMenuButton: (NSString *)name widthCGFloat) w heightCGFloat) h
{
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
btn.tintColor = [UIColor whiteColor];
[btn setImage:[UIImage imageNamed:name] forState:UIControlStateNormal];
[[btn.widthAnchor constraintEqualToConstant: w] setActive:true];
[[btn.heightAnchor constraintEqualToConstant: h] setActive:true];
btn.translatesAutoresizingMaskIntoConstraints = false;
return btn;
}
但是,当我添加这些按钮时,它们的大小相同,但在第一个/最后一个按钮之前和之后有一个间隙:
类似这样的东西(UIToolbar):
(<gap> btn0 btn1 btn2 btn3 <gap>)
如何消除这个间隙并在工具栏MapMenu 的开头添加按钮?
Best Answer-推荐答案 strong>
尝试在每个项目之间添加灵活的空间,它可能会解决您的问题并提供一致的 View 。
// Flexible Space
UIBarButtonItem *flexibleItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
[self.toolbarMapMenu setItems:[NSArray arrayWithObjects:
it0, flexibleItem,
it1, flexibleItem,
it2, flexibleItem,
it3,
nil]];
关于ios - UIToolbar - 添加等宽按钮没有间隙,我们在Stack Overflow上找到一个类似的问题:
https://stackoverflow.com/questions/50047323/
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