fix(android): support new arch on RN 0.81

Author: Minishlink

android/app/proguard-rules.pro

@@ -22,6 +22,7 @@
 }
 -keepclassmembers class com.facebook.react.runtime.ReactHostImpl {
     private final ** mReactHostDelegate;
+    private final ** reactHostDelegate;
 }
 -keep interface com.facebook.react.runtime.ReactHostDelegate { *; }
 -keep class * implements com.facebook.react.runtime.ReactHostDelegate { *; }

android/app/src/main/java/com/appzung/codepush/react/CodePushNativeModule.java

@@ -896,7 +896,14 @@ public void removeListeners(Integer count) {
     public ReactHostDelegate getReactHostDelegate(ReactHostImpl reactHostImpl) {
         try {
             Class<?> clazz = reactHostImpl.getClass();
-            Field field = clazz.getDeclaredField("mReactHostDelegate");
+            Field field;
+            try {
+                // RN < 0.81
+                field = clazz.getDeclaredField("mReactHostDelegate");
+            } catch (NoSuchFieldException e) {
+                // RN >= 0.81
+                field = clazz.getDeclaredField("reactHostDelegate");
+            }
             field.setAccessible(true);
 
             // Get the value of the field for the provided instance