ios - Camera Overlay View on Just Capture Section -

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i trying add cameraoverlayview on uiimagepickercontroller, want overlay cover part of screen shows captured camera, not "cancel" button, take photo button, flash settings, or that. how can dynamically determine frame of uiimageview of overlay should be?

i've attached image illustrate section i'm talking about.

enter image description here

you can use avcamcapturemanager overlay cover part of screen shows captured camera , not buttons


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