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iOS轻松获取当前控制器的正确方式

 5 years ago
source link: http://www.cocoachina.com/ios/20180919/24945.html
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在日常开发中,经常会有需要获取当前 window rootViewController 当前 ViewController 等需求。可通过文中方法轻松获取到他们,原理也相当简单。

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