[android] fix release build always crashing because of proguard probl…

…ems (#28)

android/build.gradle.kts

@@ -88,6 +88,7 @@ dependencies {
     natives(variantOf(libs.gdx.freetype.platform) { classifier("natives-x86_64") })
     implementation(libs.play.services.games)
     implementation(libs.gdx.gamesvcs.android.gpgs)
+    implementation(libs.androidx.core)
 }
 
 tasks.named("preBuild").configure {

android/proguard-rules.pro

@@ -8,7 +8,7 @@
 # include property in project.properties.
 #
 # For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
+#   https://developer.android.com/guide/developing/tools/proguard.html
 
 # Add any project specific keep options here:
 
@@ -23,17 +23,11 @@
 
 -dontwarn android.support.**
 -dontwarn com.badlogic.gdx.backends.android.AndroidFragmentApplication
--dontwarn com.badlogic.gdx.utils.GdxBuild
--dontwarn com.badlogic.gdx.physics.box2d.utils.Box2DBuild
--dontwarn com.badlogic.gdx.jnigen.BuildTarget*
--dontwarn com.badlogic.gdx.graphics.g2d.freetype.FreetypeBuild
 
+# Needed by the gdx-controllers official extension.
 -keep class com.badlogic.gdx.controllers.android.AndroidControllers
 
--keepclassmembers class com.badlogic.gdx.backends.android.AndroidInput* {
-   <init>(com.badlogic.gdx.Application, android.content.Context, java.lang.Object, com.badlogic.gdx.backends.android.AndroidApplicationConfiguration);
-}
-
+# Needed by the Box2D official extension.
 -keepclassmembers class com.badlogic.gdx.physics.box2d.World {
    boolean contactFilter(long, long);
    void    beginContact(long);
@@ -42,4 +36,23 @@
    void    postSolve(long, long);
    boolean reportFixture(long);
    float   reportRayFixture(long, float, float, float, float, float);
-}
+}
+
+# You will need the next three lines if you use scene2d for UI or gameplay.
+# If you don't use scene2d at all, you can remove or comment out the next line:
+-keep public class com.badlogic.gdx.scenes.scene2d.** { *; }
+# You will need the next two lines if you use BitmapFont or any scene2d.ui text:
+-keep public class com.badlogic.gdx.graphics.g2d.BitmapFont { *; }
+# You will probably need this line in most cases:
+-keep public class com.badlogic.gdx.graphics.Color { *; }
+
+# These two lines are used with mapping files; see https://developer.android.com/build/shrink-code#retracing
+-keepattributes LineNumberTable,SourceFile
+-renamesourcefileattribute SourceFile
+
+# Until https://github.com/kotcrab/vis-ui/issues/395 is resolved
+-keep class com.kotcrab.vis.ui.** { *; }
+-dontwarn com.apple.eio.FileManager
+
+
+-keep class com.badlogic.gdx.graphics.g2d.GlyphLayout { *; }

gradle.properties

@@ -2,3 +2,6 @@ org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 org.gradle.parallel=true
 org.gradle.caching=true
+
+# TODO: Enable full mode back
+android.enableR8.fullMode=false

gradle/libs.versions.toml

@@ -5,6 +5,7 @@ robovm = "2.3.22"
 gamesvcs = "1.1.0"
 visui = "1.5.3"
 playServicesGames = "23.2.0"
+androidx = "1.13.1"
 
 [libraries]
 gdx = { module = "com.badlogicgames.gdx:gdx", version.ref = "gdx" }
@@ -18,6 +19,7 @@ gdx-freetype-platform = { module = "com.badlogicgames.gdx:gdx-freetype-platform"
 robovm-rt = { module = "com.mobidevelop.robovm:robovm-rt", version.ref = "robovm" }
 robovm-cocoatouch = { module = "com.mobidevelop.robovm:robovm-cocoatouch", version.ref = "robovm" }
 
+androidx-core = { module = "androidx.core:core", version.ref = "androidx" }
 play-services-games = { module = "com.google.android.gms:play-services-games", version.ref = "playServicesGames" }
 
 gdx-gamesvcs-core = { module = "de.golfgl.gdxgamesvcs:gdx-gamesvcs-core", version.ref = "gamesvcs" }