@komakai Hi! Could you please suggest how to handle a problem from here: #20816 ?

@komakai Hi! Could you please suggest how to handle a problem from here: #20816 ?

@alalek Will take a look

So we have already run-time checks like:

if (@available(iOS 13.0, *)) {     // runtime check
   return [UIFont fontWithDescriptor:[[UIFontDescriptor preferredFontDescriptorWithTextStyle:UIFontTextStyleBody] fontDescriptorWithDesign:UIFontDescriptorSystemDesignSerif] size:SIZE];
} else {
    return nil;
}

but if you are building with a version of Xcode that doesn't know about iOS 13 then I guess these checks are not enough.
According to https://developer.apple.com/forums/thread/124278 it should be possible to do something like:

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 130000

Will try to prepare a fix.

Equivalent functionality for Android/Java now also available: https://medium.com/@gilespayne/android-java-get-opencv-mat-visualization-plugin-8d1281047773

Equivalent functionality for Android/Java now also available: https://medium.com/@gilespayne/android-java-get-opencv-mat-visualization-plugin-8d1281047773

Hi, thanks for your contribution.
I find from your pictures where you directly use OpenCV in Swift but not via Object-C or C Wrapper interface.
I want to know how to do it?

@wwwwwlllllllllll

I find from your pictures where you directly use OpenCV in Swift but not via Object-C or C Wrapper interface.

Quicklook works exactly the same in Objective-C as in Swift. Just move the mouse cursor over a variable of type Mat and click the eye icon. Quicklook is not available in C/C++