Android: Add memory card mode settings

android/app/src/main/res/values/arrays.xml

@@ -75,4 +75,16 @@
         <item>DigitalController</item>
         <item>AnalogController</item>
     </string-array>
+    <string-array name="settings_memory_card_mode_entries">
+        <item>No Memory Card</item>
+        <item>Shared Between All Games</item>
+        <item>Separate Card Per Game (Game Code)</item>
+        <item>Separate Card Per Game (Game Title)</item>
+    </string-array>
+    <string-array name="settings_memory_card_mode_values">
+        <item>None</item>
+        <item>Shared</item>
+        <item>PerGame</item>
+        <item>PerGameTitle</item>
+    </string-array>
 </resources>

android/app/src/main/res/xml/root_preferences.xml

@@ -156,5 +156,22 @@
             app:title="Display Touchscreen Controller"
             app:defaultValue="true" />
     </PreferenceCategory>
+  
+    <PreferenceCategory app:title="Memory Cards">
+        <ListPreference
+            app:key="MemoryCards/Card1Type"
+            app:title="Memory Card 1 Type"
+            app:entries="@array/settings_memory_card_mode_entries"
+            app:entryValues="@array/settings_memory_card_mode_values"
+            app:defaultValue="PerGameTitle"
+            app:useSimpleSummaryProvider="true" />
+        <ListPreference
+            app:key="MemoryCards/Card2Type"
+            app:title="Memory Card 2 Type"
+            app:entries="@array/settings_memory_card_mode_entries"
+            app:entryValues="@array/settings_memory_card_mode_values"
+            app:defaultValue="None"
+            app:useSimpleSummaryProvider="true" />
+    </PreferenceCategory>
 
 </PreferenceScreen>