/Users/mac/build/zhyshop_sun/Pods/WeexSDK/ios/sdk/WeexSDK/Sources/Display/WXLayer.m

- (void)display
{
    if(@available(iOS 14.0, *)) {
        [super display];
    }
    [self.wx_component _willDisplayLayer:self];
}

https://www.jianshu.com/p/e16490a9a064