Additional support for system theme setting (#1124)

* first pass with iOS 13+ support

* tweaks for ios pre-13

* Added Android support for dark/light splash & detection with default theme

* update cipher cell text color on system theme change (android)

src/iOS/Info.plist

@@ -125,5 +125,7 @@
 	<string>Use Face ID to unlock your vault.</string>
 	<key>NFCReaderUsageDescription</key>
 	<string>Use Yubikeys for two-facor authentication.</string>
+	<key>UILaunchImages</key>
+	<string>Resources/Assets.xcassets/LaunchScreen.imageset</string>
 </dict>
 </plist>

src/iOS/LaunchScreen.storyboard

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6211" systemVersion="14A298i" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="5">
     <dependencies>
         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6204"/>
@@ -14,9 +14,9 @@
                     <view key="view" contentMode="scaleToFill" id="6">
                         <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                        <color key="backgroundColor" customColorSpace="calibratedWhite" colorSpace="calibratedRGB" red="0.92549019607843142" green="0.94117647058823528" blue="0.96078431372549022" alpha="1"/>
+                        <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
                         <subviews>
-                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" id="16" translatesAutoresizingMaskIntoConstraints="NO" image="logo.png">
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" id="16" translatesAutoresizingMaskIntoConstraints="NO" image="LaunchScreen">
                                 <rect key="frame" x="159" y="248" width="282" height="44"/>
                             </imageView>
                         </subviews>
@@ -25,7 +25,6 @@
                             <constraint id="20" firstItem="6" firstAttribute="centerX" secondItem="16" secondAttribute="centerX"/>
                         </constraints>
                     </view>
-                    <connections/>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="7" userLabel="First Responder" sceneMemberID="firstResponder"/>
             </objects>
@@ -54,7 +53,7 @@
         <image name="Icon.png" width="57" height="57"/>
         <image name="ion_chevron_right.png" width="14" height="14"/>
         <image name="ion_plus.png" width="22" height="22"/>
-        <image name="logo.png" width="282" height="44"/>
+        <image name="LaunchScreen" width="282" height="44"/>
         <image name="cogs.png" width="29" height="29"/>
         <image name="eye.png" width="22" height="22"/>
         <image name="eye_slash.png" width="22" height="22"/>

src/iOS/Resources/Assets.xcassets/LaunchScreen.imageset/Contents.json

@@ -0,0 +1,68 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "idiom" : "universal"
+    },
+    {
+      "filename" : "logo.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "filename" : "logo_white.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "logo@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "filename" : "logo_white@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "logo@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "filename" : "logo_white@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

src/iOS/iOS.csproj

@@ -144,6 +144,13 @@
     <ImageAsset Include="Resources\Assets.xcassets\AppIcons.appiconset\Contents.json">
       <Visible>false</Visible>
     </ImageAsset>
+    <ImageAsset Include="Resources\Assets.xcassets\LaunchScreen.imageset\Contents.json" />
+    <ImageAsset Include="Resources\Assets.xcassets\LaunchScreen.imageset\logo.png" />
+    <ImageAsset Include="Resources\Assets.xcassets\LaunchScreen.imageset\logo%402x.png" />
+    <ImageAsset Include="Resources\Assets.xcassets\LaunchScreen.imageset\logo%403x.png" />
+    <ImageAsset Include="Resources\Assets.xcassets\LaunchScreen.imageset\logo_white.png" />
+    <ImageAsset Include="Resources\Assets.xcassets\LaunchScreen.imageset\logo_white%402x.png" />
+    <ImageAsset Include="Resources\Assets.xcassets\LaunchScreen.imageset\logo_white%403x.png" />
   </ItemGroup>
   <ItemGroup>
     <InterfaceDefinition Include="LaunchScreen.storyboard" />
@@ -388,4 +395,7 @@
   <ItemGroup>
     <BundleResource Include="Resources\logo_white%403x.png" />
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Resources\Assets.xcassets\LaunchScreen.imageset\" />
+  </ItemGroup>
 </Project>