Exclude "Download" service/activity from embed flavor.

love/build.gradle

@@ -27,7 +27,7 @@ android {
     }
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
@@ -47,13 +47,13 @@ android {
     sourceSets {
         main {
             java {
-                srcDirs('src/main/java', 'src/jni/SDL2/android-project/app/src/main/java')
+                srcDir 'src/jni/SDL2/android-project/app/src/main/java'
+                srcDir 'src/main/java'
             }
         }
-        embed {
+        playstore {
             java {
-                exclude '**/DownloadActivity.java'
-                exclude '**/DownloadService.java'
+                srcDir 'src/normal/java'
             }
         }
     }

love/src/main/java/org/love2d/android/GameActivity.java

@@ -259,6 +259,7 @@ public class GameActivity extends SDLActivity {
         }
     }
 
+    @Keep
     public void setImmersiveMode(boolean immersive_mode) {
         if (android.os.Build.VERSION.SDK_INT < 11) {
             // The API getWindow().getDecorView().setSystemUiVisibility() was
@@ -304,10 +305,12 @@ public class GameActivity extends SDLActivity {
         ;
     }
 
+    @Keep
     public boolean getImmersiveMode() {
         return immersiveActive;
     }
 
+    @Keep
     public static String getGamePath() {
         GameActivity self = (GameActivity) mSingleton; // use SDL provided one
         Log.d("GameActivity", "called getGamePath(), game path = " + gamePath);
@@ -332,12 +335,14 @@ public class GameActivity extends SDLActivity {
         return metrics;
     }
 
+    @Keep
     public static void vibrate(double seconds) {
         if (vibrator != null) {
             vibrator.vibrate((long) (seconds * 1000.));
         }
     }
 
+    @Keep
     public static boolean openURL(String url) {
         Log.d("GameActivity", "opening url = " + url);
         try {