Abstracting Activity logic from Dev Loading View (#35256)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/35256

Changelog:
    [General][Added] - Making Dev Loading View cross platform by abstracting out the activity/context logic from the controller in a polymorph class.

Reviewed By: rshest

Differential Revision: D40908923

fbshipit-source-id: db8e94f8ded5ffe0deeb88335cd7f3d1bf87243a

ReactAndroid/src/main/java/com/facebook/react/devsupport/DevLoadingViewController.java

@@ -22,10 +22,11 @@ import com.facebook.common.logging.FLog;
 import com.facebook.react.R;
 import com.facebook.react.bridge.UiThreadUtil;
 import com.facebook.react.common.ReactConstants;
+import com.facebook.react.devsupport.interfaces.DevLoadingViewManager;
 import java.util.Locale;
 
 /** Controller to display loading messages on top of the screen. All methods are thread safe. */
-public class DevLoadingViewController {
+public class DevLoadingViewController implements DevLoadingViewManager {
   private static boolean sEnabled = true;
   private final ReactInstanceDevHelper mReactInstanceManagerHelper;
   private @Nullable TextView mDevLoadingView;
@@ -39,6 +40,7 @@ public class DevLoadingViewController {
     mReactInstanceManagerHelper = reactInstanceManagerHelper;
   }
 
+  @Override
   public void showMessage(final String message) {
     if (!sEnabled) {
       return;
@@ -53,6 +55,7 @@ public class DevLoadingViewController {
         });
   }
 
+  @Override
   public void updateProgress(
       final @Nullable String status, final @Nullable Integer done, final @Nullable Integer total) {
     if (!sEnabled) {
@@ -77,6 +80,7 @@ public class DevLoadingViewController {
         });
   }
 
+  @Override
   public void hide() {
     if (!sEnabled) {
       return;

ReactAndroid/src/main/java/com/facebook/react/devsupport/interfaces/DevLoadingViewManager.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.devsupport.interfaces;
+
+import androidx.annotation.Nullable;
+
+/** Interface to display loading messages on top of the screen. */
+public interface DevLoadingViewManager {
+
+  void showMessage(final String message);
+
+  void updateProgress(
+      final @Nullable String status, final @Nullable Integer done, final @Nullable Integer total);
+
+  void hide();
+}