Unity 2017.4.27 splash screen storyboard twist

_How to

# ProjectSettings:

set LaunchScreen.storyboard as splash screen storyboard in project settings

# Assets:

- put CustomSplashViewController.mm in Assets/Plugins/iOS/
- put CustomSplashViewController.h in Assets/Plugins/iOS/

# ios postprocess:

- set UILaunchStoryboardName to 'ActualLaunchScreen' in xcode project's info.plist
- copy LaunchScreen-Default.png to xcode project root
- copy ActualLaunchScreen.storyboard to xcode project root

ActualLaunchScreen.storyboard

<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="15705" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Bqq-lu-R9T">
    <device id="retina6_1" orientation="landscape" appearance="light"/>
    <dependencies>
        <deployment identifier="iOS"/>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="15706"/>
        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
    </dependencies>
    <scenes>
        <!--View Controller-->
        <scene sceneID="NjY-pa-eES">
            <objects>
                <viewController id="Bqq-lu-R9T" sceneMemberID="viewController">
                    <view key="view" contentMode="scaleToFill" id="omG-WO-XaD">
                        <rect key="frame" x="0.0" y="0.0" width="896" height="414"/>
                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                        <subviews>
                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="LaunchScreen-Default.png" translatesAutoresizingMaskIntoConstraints="NO" id="NTg-Sj-gK7">
                                <rect key="frame" x="0.0" y="0.0" width="896" height="414"/>
                            </imageView>
                        </subviews>
                        <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
                        <constraints>
                            <constraint firstAttribute="trailing" secondItem="NTg-Sj-gK7" secondAttribute="trailing" id="gRm-Bp-e2m"/>
                            <constraint firstAttribute="bottom" secondItem="NTg-Sj-gK7" secondAttribute="bottom" id="isP-OG-yAi"/>
                            <constraint firstItem="NTg-Sj-gK7" firstAttribute="leading" secondItem="omG-WO-XaD" secondAttribute="leading" id="lZq-2E-iEu"/>
                            <constraint firstItem="NTg-Sj-gK7" firstAttribute="top" secondItem="xkV-D4-5CV" secondAttribute="top" id="wUv-Xi-3vm"/>
                        </constraints>
                        <viewLayoutGuide key="safeArea" id="xkV-D4-5CV"/>
                    </view>
                </viewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="nab-O5-gdx" userLabel="First Responder" customClass="UIResponder" sceneMemberID="firstResponder"/>
            </objects>
            <point key="canvasLocation" x="205.58035714285714" y="37.681159420289859"/>
        </scene>
    </scenes>
    <resources>
        <image name="LaunchScreen-Default.png" width="1218" height="562.5"/>
    </resources>
</document>

CustomSplashViewController.h

#ifndef CustomSplashViewController_h
#define CustomSplashViewController_h

@interface CustomSplashViewController: UIViewController

- (UIInterfaceOrientationMask)supportedInterfaceOrientations;

@end

#endif /* CustomSplashViewController_h */

CustomSplashViewController.m

#import <Foundation/Foundation.h>
#import "CustomSplashViewController.h"

@implementation CustomSplashViewController

- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
    UIInterfaceOrientationMask ret = 0;
    ret |= (1 << UIInterfaceOrientationLandscapeRight);
    ret |= (1 << UIInterfaceOrientationLandscapeLeft);
    return ret;
}

@end

LaunchScreen.storyboard

<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="15505" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Bqq-lu-R9T">
    <device id="retina6_1" orientation="landscape" appearance="light"/>
    <dependencies>
        <deployment identifier="iOS"/>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="15509"/>
        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
    </dependencies>
    <scenes>
        <!--Custom Splash View Controller-->
        <scene sceneID="NjY-pa-eES">
            <objects>
                <viewController modalPresentationStyle="fullScreen" id="Bqq-lu-R9T" customClass="CustomSplashViewController" sceneMemberID="viewController">
                    <view key="view" contentMode="scaleToFill" id="omG-WO-XaD">
                        <rect key="frame" x="0.0" y="0.0" width="896" height="414"/>
                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                        <subviews>
                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="LaunchScreen-Default.png" translatesAutoresizingMaskIntoConstraints="NO" id="NTg-Sj-gK7">
                                <rect key="frame" x="0.0" y="0.0" width="896" height="414"/>
                            </imageView>
                        </subviews>
                        <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
                        <constraints>
                            <constraint firstAttribute="trailing" secondItem="NTg-Sj-gK7" secondAttribute="trailing" id="gRm-Bp-e2m"/>
                            <constraint firstAttribute="bottom" secondItem="NTg-Sj-gK7" secondAttribute="bottom" id="isP-OG-yAi"/>
                            <constraint firstItem="NTg-Sj-gK7" firstAttribute="leading" secondItem="omG-WO-XaD" secondAttribute="leading" id="lZq-2E-iEu"/>
                            <constraint firstItem="NTg-Sj-gK7" firstAttribute="top" secondItem="xkV-D4-5CV" secondAttribute="top" id="wUv-Xi-3vm"/>
                        </constraints>
                        <viewLayoutGuide key="safeArea" id="xkV-D4-5CV"/>
                    </view>
                </viewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="nab-O5-gdx" userLabel="First Responder" customClass="UIResponder" sceneMemberID="firstResponder"/>
            </objects>
            <point key="canvasLocation" x="205.58035714285714" y="37.681159420289859"/>
        </scene>
    </scenes>
    <resources>
        <image name="LaunchScreen-Default.png" width="1218" height="562.5"/>
    </resources>
</document>