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0x00 a log warning ⚠️

presenting view controllers on detached view controllers is discovered
rendering view controllers on detached view controllers is not encouraged
in this paper

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The scene of the accident

Add View of controller B to View of controller a
handle a video playback event in controller B
use avplayerviewcontroller
result after playback, can’t Close

Check the console and find a message from the system:
presenting view controllers on detached view controllers is discovered
full face ❓❓

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0x02 parent controller

After flipping through stack overflow
we found such a key code:
[self.parentviewcontroller presentviewc ontroller:viewController animated :YES c ompletion:nil ];

Quickly change self to self. Parentviewcontroller
Oh, fire 🔥
no ~

no

Before adding View of controller B ,
did not add controller B to controller a
first 😓

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Verification code input box

https://github.com/xjh093/JHVerifyCodeView

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Five strokes learning, so simple

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