feat: enable r8 minification

build-extras.gradle

@@ -2,6 +2,15 @@ android {
     packagingOptions {
         pickFirst 'META-INF/versions/9/OSGI-INF/MANIFEST.MF'
     }
+    buildTypes {
+        release {
+            //might cause ClassNotFoundException errors
+            //to fix those errors you need to either put @Keep on the class/feild or add a entry in progrud rules file
+            minifyEnabled true
+            shrinkResources true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
 }
 
 configurations {

config.xml

@@ -314,6 +314,11 @@
         <hook type="before_prepare" src="hooks/restore-cordova-resources.js" />
         <hook type="before_prepare" src="hooks/modify-java-files.js" />
         <hook type="after_prepare" src="hooks/post-process.js" />
+
+
+
+        <resource-file src="build-extras.gradle" target="app/build-extras.gradle" />
+        <resource-file src="proguard-rules.pro" target="app/proguard-rules.pro" />
     </platform>
     <preference name="AndroidBlacklistSecureSocketProtocols" value="SSLv3,TLSv1" />
 </widget>

proguard-rules.pro

@@ -0,0 +1,27 @@
+# Keep Cordova classes
+-keep class org.apache.cordova.** { *; }
+
+# Cordova discovers plugins by class name from config.xml and instantiates them
+# reflectively, and plugins can dispatch actions by method name through
+# reflection too (e.g. Ftp.execute() uses
+# getClass().getDeclaredMethod(action, JSONArray, CallbackContext)).
+# Without keeping the members, R8 strips methods such as connect()/listDirectory()
+# and those plugin calls fail at runtime with NoSuchMethodException.
+-keep public class * extends org.apache.cordova.CordovaPlugin { *; }
+
+# WebView JS bridge methods are invoked by name from JavaScript.
+-keepclassmembers class * {
+    @android.webkit.JavascriptInterface <methods>;
+}
+
+# cordova-plugin-buildinfo resolves the app's BuildConfig reflectively:
+# Class.forName(packageName + ".BuildConfig") and c.getField(fieldName).
+-keep class **.BuildConfig { *; }
+
+# maverick-synergy (SSH/SFTP) references java.lang.management from
+# Utils.generateThreadDump(), which does not exist on Android. That method is
+# never reached on Android, so ignore the missing Java SE classes.
+-dontwarn java.lang.management.**
+
+# Keep Javascript Interface attributes
+-keepattributes *Annotation*,EnclosingMethod,InnerClasses,Signature