From 671a674c6e2570adbc61f9cbca91e5a1f609fab5 Mon Sep 17 00:00:00 2001
From: Andrew Quan <AndrewQ@redblueprint.com>
Date: Fri, 26 Mar 2021 13:33:30 +0200
Subject: [PATCH] Android - Foldables

Added support for Multi-Window and related properties:
https://developer.android.com/guide/topics/ui/foldables
https://developer.android.com/guide/topics/ui/multi-window
https://developer.android.com/guide/topics/ui/picture-in-picture
https://developer.samsung.com/galaxy/foldable/techdocs
https://stackoverflow.com/questions/14111052/adding-samsung-multi-window-support-to-android-application
https://program.developer.samsung.com/2019/04/05/seven-mistakes-to-avoid-when-developing-for-foldable-displays

Sample project settings:
```
"Android": {
"MultiWindow": {
"Enabled": true,
"DefaultSizeWidth": "320p",
"DefaultSizeHeight": "640p",
"MultiInstance": true
},
"PenWindow": true,
"AllowMultipleResumedActivities": true,
"ResizeableActivity": true,
"SupportsPictureInPicture": true,
"WindowLayoutInDisplayCutoutMode": 'default',
"MaxAspect": "21:9",
"Layout": {
"DefaultHeight": "640dp",
"DefaultWidth": "320dp",
"Gravity": "top|end",
"MinHeight": "300dp",
"MinWidth": "280dp"
},
```
---
 .../Android/app/src/main/AndroidManifest.xml  | 66 ++++++++++++++++++-
 .../app/src/main/res/values/styles.xml        |  3 +
 2 files changed, 68 insertions(+), 1 deletion(-)

diff --git a/lib/UnoCore/Targets/Android/app/src/main/AndroidManifest.xml b/lib/UnoCore/Targets/Android/app/src/main/AndroidManifest.xml
index 008c9f478..4e60a324b 100644
--- a/lib/UnoCore/Targets/Android/app/src/main/AndroidManifest.xml
+++ b/lib/UnoCore/Targets/Android/app/src/main/AndroidManifest.xml
@@ -107,7 +107,7 @@
 #endif
                   android:taskAffinity=""
                   android:windowSoftInputMode="adjustResize"
-                  android:configChanges="orientation|keyboardHidden|screenSize|smallestScreenSize|uiMode"
+                  android:configChanges="orientation|keyboardHidden|screenSize|smallestScreenSize|uiMode|screenLayout"
 #if @(Project.Mobile.Orientations:Equals('Portrait'))
                   android:screenOrientation="portrait"
 #elif @(Project.Mobile.Orientations:Equals('LandscapeLeft'))
@@ -118,12 +118,48 @@
                   android:screenOrientation="sensorLandscape"
 #else
                   android:screenOrientation="user"
+#endif
+#if @(Project.Android.ResizeableActivity:Test(1, 0))
+                  android:resizeableActivity="true"
+#endif
+#if @(Project.Android.SupportsPictureInPicture:Test(1, 0))
+                  android:supportsPictureInPicture="true"
 #endif
                   android:windowActionBar="false">
+
+#if @(Project.Android.Layout.DefaultHeight:IsSet) ||
+     @(Project.Android.Layout.DefaultWidth:IsSet) ||
+     @(Project.Android.Layout.Gravity:IsSet) ||
+     @(Project.Android.Layout.MinHeight:IsSet) ||
+     @(Project.Android.Layout.MinWidth:IsSet)
+             <layout 
+               #if @(Project.Android.Layout.DefaultHeight:IsSet)
+                   android:defaultHeight="@(Project.Android.Layout.DefaultHeight)"
+               #endif
+               #if @(Project.Android.Layout.DefaultWidth:IsSet)
+                   android:defaultWidth="@(Project.Android.Layout.DefaultWidth)"
+               #endif
+               #if @(Project.Android.Layout.Gravity:IsSet)
+                   android:gravity="@(Project.Android.Layout.Gravity || 'top|end')"
+               #endif
+               #if @(Project.Android.Layout.MinHeight:IsSet)
+                   android:minHeight="@(Project.Android.Layout.MinHeight)"
+               #endif
+               #if @(Project.Android.Layout.MinWidth:IsSet)
+                   android:minWidth="@(Project.Android.Layout.MinWidth)"
+               #endif
+               />
+ #endif
             <meta-data android:name="android.app.lib_name" android:value="@(Activity.Name:EscapeXml)" />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
+#if @(Project.Android.MultiWindow.Enabled:Test(1, 0))
+                <category android:name="android.intent.category.MULTIWINDOW_LAUNCHER" />
+#endif
+#if @(Project.Android.PenWindow:Test(1, 0))
+                <category android:name="android.intent.category.PENWINDOW_LAUNCHER" />
+#endif
             </intent-filter>
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
@@ -155,5 +191,33 @@
         <meta-data android:name="com.google.android.geo.API_KEY"
                    android:value="@(Project.Android.Geo.ApiKey)"/>
 #endif
+
+
+#if @(Project.Android.MultiWindow.Enabled:Test(1, 0))
+       <uses-library android:required="false" android:name="com.sec.android.app.multiwindow" />
+       <meta-data android:name="com.sec.android.support.multiwindow" android:value="true" />
+   #if @(Project.Android.MultiWindow.DefaultSizeWidth:IsSet)
+       <meta-data android:name="com.sec.android.multiwindow.DEFAULT_SIZE_W" android:value="@(Project.Android.MultiWindow.DefaultSizeWidth)" />
+   #endif
+   #if @(Project.Android.MultiWindow.DefaultSizeHeight:IsSet)
+       <meta-data android:name="com.sec.android.multiwindow.DEFAULT_SIZE_H" android:value="@(Project.Android.MultiWindow.DefaultSizeHeight)" />
+   #endif
+#endif
+#if @(Project.Android.MaxAspect:IsSet)
+       <meta-data android:name="android.max_aspect" android:value="@(Project.Android.MaxAspect)" />
+#endif
+#if @(Project.Android.AllowMultipleResumedActivities:Test(1, 0))        
+       <meta-data
+           android:name="android.allow_multiple_resumed_activities"
+           android:value="true"/>
+#endif
+#if @(Project.Android.MultiWindow.MultiInstance:Test(1, 0))
+       <meta-data
+           android:name="com.samsung.android.sdk.multiwindow.multiinstance.enable"
+           android:value="true" />
+#endif
+#if @(Project.Android.PenWindow:Test(1, 0))
+       <meta-data android:name="com.samsung.android.sdk.multiwindow.penwindow.enable" android:value="true" />
+#endif
     </application>
 </manifest>
diff --git a/lib/UnoCore/Targets/Android/app/src/main/res/values/styles.xml b/lib/UnoCore/Targets/Android/app/src/main/res/values/styles.xml
index 7b34d6891..c81151ba4 100644
--- a/lib/UnoCore/Targets/Android/app/src/main/res/values/styles.xml
+++ b/lib/UnoCore/Targets/Android/app/src/main/res/values/styles.xml
@@ -13,6 +13,9 @@
 #endif
         <item name="android:windowContentOverlay">@null</item>
         <item name="android:windowIsTranslucent">@(Project.Android.WindowIsTranslucent || 'false')</item>
+#if @(Project.Android.WindowLayoutInDisplayCutoutMode:IsSet)
+	    <item name="android:windowLayoutInDisplayCutoutMode">@(Project.Android.WindowLayoutInDisplayCutoutMode || 'default')</item>
+#endif
     </style>
 
 </resources>