Update demo

demo-module/proguard-rules.pro

@@ -35,4 +35,14 @@
 -adaptresourcefilecontents
 
 -renamesourcefileattribute P
--keepattributes SourceFile,LineNumberTable
+-keepattributes SourceFile,LineNumberTable
+
+-keepclassmembers class androidx.appcompat.app.AlertDialog {
+    *** mAlert;
+}
+
+-keepclassmembers class androidx.appcompat.app.AlertController {
+    *** mButtonPositive;
+    *** mButtonNegative;
+    *** mButtonNeutral;
+}