【背景】
参考：
MHTabBarController/MHTabBarController.m at master · hollance/MHTabBarController · GitHub
尝试把OC代码改为swift代码，借鉴的去实现自己的自定义的tab，结果代码：
1 2 3 4 | class RecordTabBarController : UIViewController { override func viewDidLoad() { super.viewDidLoad() self.view.autoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight |
出错：
RecordTabBarController.swift:17:71: Binary operator ‘|’ cannot be applied to two ‘UIViewAutoresizing’ operands
【解决过程】
1.搜：
swift Binary operator | cannot be applied to two UIViewAutoresizing operands
参考：
ios – Binary operator ‘|’ cannot be applied to two UIViewAutoresizing operands – Stack Overflow
去改为：
1 | self.view.autoresizingMask = [UIViewAutoresizing.FlexibleWidth, UIViewAutoresizing.FlexibleHeight] |
即可。
【总结】
swift新语法，把：
1 | self.view.autoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight |
换成：
1 | self.view.autoresizingMask = [UIViewAutoresizing.FlexibleWidth, UIViewAutoresizing.FlexibleHeight] |
才可以。
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