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1 min readJan 6, 2018

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Yes you can.

UIScreen *mainScreen = [UIScreen mainScreen];

[mainScreen addObserver:self forKeyPath:@”captured” options:NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld context:NULL];

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Abhimuralidharan
Abhimuralidharan

Written by Abhimuralidharan

iOS and tvOS developer, dreamer, photographer 🤨

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