add option in 'Dev Settings' for never use cached bundle file

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

@@ -35,6 +35,7 @@ public class DevInternalSettings implements
   private static final String PREFS_RELOAD_ON_JS_CHANGE_KEY = "reload_on_js_change";
   private static final String PREFS_INSPECTOR_DEBUG_KEY = "inspector_debug";
   private static final String PREFS_HOT_MODULE_REPLACEMENT_KEY = "hot_module_replacement";
+  private static final String PREFS_USE_CACHED_BUNDLE = "use_cached_bundle";
 
   private final SharedPreferences mPreferences;
   private final DevSupportManager mDebugManager;
@@ -66,14 +67,20 @@ public boolean isJSDevModeEnabled() {
     return mPreferences.getBoolean(PREFS_JS_DEV_MODE_DEBUG_KEY, true);
   }
 
+  @Override
+  public  boolean getShouldUseCachedBundle() {
+    return mPreferences.getBoolean(PREFS_USE_CACHED_BUNDLE, true);
+  }
+
   public @Nullable String getDebugServerHost() {
     return mPreferences.getString(PREFS_DEBUG_SERVER_HOST_KEY, null);
   }
 
   public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
     if (PREFS_FPS_DEBUG_KEY.equals(key) ||
         PREFS_RELOAD_ON_JS_CHANGE_KEY.equals(key) ||
-        PREFS_JS_DEV_MODE_DEBUG_KEY.equals(key)) {
+        PREFS_JS_DEV_MODE_DEBUG_KEY.equals(key) ||
+        PREFS_USE_CACHED_BUNDLE.equals(key)) {
       mDebugManager.reloadSettings();
     }
   }

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

@@ -134,6 +134,13 @@ private boolean getHMR() {
     return mSettings.isHotModuleReplacementEnabled();
   }
 
+  /**
+   * @return whether we should use cached JS bundles.
+   */
+  public boolean getShouldUseCachedBundle() {
+    return mSettings.getShouldUseCachedBundle();
+  }
+
   /**
    * @return the host to use when connecting to the bundle server.
    */

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

@@ -452,7 +452,7 @@ public String getDownloadedJSBundleFile() {
    */
   @Override
   public boolean hasUpToDateJSBundleInCache() {
-    if (mIsDevSupportEnabled && mJSBundleTempFile.exists()) {
+    if (mIsDevSupportEnabled && mDevServerHelper.getShouldUseCachedBundle() && mJSBundleTempFile.exists()) {
       try {
         String packageName = mApplicationContext.getPackageName();
         PackageInfo thisPackage = mApplicationContext.getPackageManager()

ReactAndroid/src/main/java/com/facebook/react/modules/debug/DeveloperSettings.java

@@ -33,4 +33,10 @@ public interface DeveloperSettings {
    * @return Whether element inspector is enabled.
    */
   boolean isElementInspectorEnabled();
+
+  /**
+   * @return Whether an cached bundle file should be used.
+   */
+  boolean getShouldUseCachedBundle();
+
 }

ReactAndroid/src/main/res/devsupport/xml/preferences.xml

@@ -19,6 +19,12 @@
         android:summary="At the end of animations, Toasts and logs to logcat debug information about the FPS during that transition. Currently only supported for transitions (animated navigations)."
         android:defaultValue="false"
         />
+    <CheckBoxPreference
+        android:key="use_cached_bundle"
+        android:title="Use Cached Bundle"
+        android:summary="Use the last JS bundle downloaded from the packager if the packager cannot be reached."
+        android:defaultValue="true"
+        />
   </PreferenceCategory>
   <PreferenceCategory
       android:key="pref_key_catalyst_debug"