Update Android view state when accessibility states are changed. (#24678)

Summary:
In #24095, we removed the code that changes the underlying Android view's enabled state to false when "disabled" is included in the accessibility states, which seems correct. The Android view's state shouldn't mirror the accessibility state, it should be the other way round-- the accessibility state should represent the state of the view.

It seems that the existing test is brokenly setting the disabled state in the Javascript object, and then querying the Android view's enabled state to confirm the change. If the Button implementation is actually the culprit, then IMHO, the correct fix would be to have the Button implementation manipulate the Android View's enabled state, not the accessibilityStates code.

[android] [fix] - Fix internal test case around disabled state of buttons
Pull Request resolved: #24678

Differential Revision: D15237590

Pulled By: cpojer

fbshipit-source-id: d7ebefbcba9d4d9425da4285175302e4b6435df7

Author: Marc Mulcahy

ReactAndroid/src/main/java/com/facebook/react/uimanager/BaseViewManager.java

@@ -146,11 +146,22 @@ public void setViewStates(@Nonnull T view, @Nullable ReadableArray accessibility
       return;
     }
     view.setTag(R.id.accessibility_states, accessibilityStates);
+    view.setSelected(false);
+    view.setEnabled(true);
+    boolean shouldUpdateContentDescription = false;
     for (int i = 0; i < accessibilityStates.size(); i++) {
       String state = accessibilityStates.getString(i);
       if (sStateDescription.containsKey(state)) {
-        updateViewContentDescription(view);
+        shouldUpdateContentDescription = true;
       }
+      if (state.equals("selected")) {
+        view.setSelected(true);
+      } else if (state.equals("disabled")) {
+        view.setEnabled(false);
+      }
+    }
+    if (shouldUpdateContentDescription) {
+      updateViewContentDescription(view);
     }
   }