我需要找到UITabBarButton位置,我已经实现了用于获取tabbutton和传递的索引的所有值的方法。但是在子视图中初始标签栏按钮的获取是未排序的方式。下面是我的代码。请帮我点菜
func frameForTabAtIndex(index: Int) -> CGRect {
guard let tabBarSubviews = tabBarController?.tabBar.subviews else {
return CGRect.zero
}
var allItems = [UIView]()
for tabBarItem in tabBarSubviews {
if tabBarItem.isKind(of: NSClassFromString("UITabBarButton")!) {
allItems.append(tabBarItem)
}
}
let item = allItems[index]
return item.superview!.convert(item.frame, to: view)
}
- 0 : <_UIBarBackground: 0x7ff96060ccb0; frame = (0 0; 414 49); userInteractionEnabled = NO; layer = <CALayer: 0x6040000395a0>>
- 1 : <UITabBarButton: 0x7ff96060a4b0; frame = (106 1; 99 48); alpha = 0.25; opaque = NO; layer = <CALayer: 0x604000039da0>>
- 2 : <UITabBarButton: 0x7ff96060bb90; frame = (209 1; 100 48); alpha = 0.25; opaque = NO; layer = <CALayer: 0x604000039bc0>>
- 3 : <UITabBarButton: 0x7ff96060c420; frame = (313 1; 99 48); opaque = NO; layer = <CALayer: 0x604000039ae0>>
- 4 : <UITabBarButton: 0x7ff961b39160; frame = (2 1; 100 48); alpha = 0.25; opaque = NO; layer = <CALayer: 0x60c000229f80>>
答案 0 :(得分:0)
您可以对数组 allItems 进行如下排序:
allItems.sort { $0.frame.origin.x < $1.frame.origin.x }
这将为您提供排序后的数组,并且它是可变的,因此它将按照UITabBarButton的 x 值对对象进行排序
在代码上方,您将从数组中获取项目。
let item = allItems[index]
希望有帮助