[AND] Enable minifying release build

Author: moallemi

androidApp/build.gradle.kts

@@ -47,7 +47,9 @@ android {
 
     buildTypes {
         getByName("release") {
-            isMinifyEnabled = false
+            isMinifyEnabled = true
+            isShrinkResources = true
+            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
         }
     }
 

androidApp/proguard-rules.pro

@@ -0,0 +1,42 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
+
+-keepattributes *Annotation*, InnerClasses
+-dontnote kotlinx.serialization.SerializationKt
+-keep,includedescriptorclasses class me.moallemi.kmpshowcase.**$$serializer { *; }
+-keepclassmembers class me.moallemi.kmpshowcase.** {
+    *** Companion;
+}
+-keepclasseswithmembers class me.moallemi.kmpshowcase.** {
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+-keep class me.moallemi.kmpshowcase.shared.domain.** { *;}
+
+# Remove all logs
+-assumenosideeffects class android.util.Log {
+  public static *** v(...);
+  public static *** d(...);
+  public static *** i(...);
+  public static *** w(...);
+  public static *** e(...);
+}