diff --git a/android/app/proguard-rules.pro b/android/app/proguard-rules.pro
new file mode 100644
index 0000000..7f69b09
--- /dev/null
+++ b/android/app/proguard-rules.pro
@@ -0,0 +1,40 @@
+# Keep classes used for reflection
+-keepclassmembers class * {
+    <methods>;
+}
+
+# Keep url_launcher package
+-keep class androidx.core.content.FileProvider
+-keep class androidx.core.app.ActivityCompat
+-keep class androidx.core.content.ContextCompat
+
+# Keep url_launcher classes
+-keep class io.flutter.plugins.urllauncher.** { *; }
+-keep class androidx.core.content.** { *; }
+-keepattributes *Annotation*
+-keepclassmembers class * {
+    @android.webkit.JavascriptInterface <methods>;
+}
+
+# Keep all implementations of b2.a
+-keep class b2.a { *; }
+-keep class b2.** { *; }
+-keep class j2.d { *; }
+
+# WebView rules
+-keep class io.flutter.plugins.webviewflutter.** { *; }
+-keep class android.webkit.** { *; }
+-keep class * extends android.webkit.WebChromeClient { *; }
+-keep class * extends android.webkit.WebViewClient { *; }
+-keepclassmembers class * extends android.webkit.WebViewClient {
+    <methods>;
+}
+
+# Keep javascript interfaces
+-keepattributes JavascriptInterface
+-keep class * extends android.webkit.WebView { *; }
+
+# Keep all classes that might be used in WebView JS interface
+-keepclassmembers class * {
+    @android.webkit.JavascriptInterface <methods>;
+}
\ No newline at end of file