load bundle from file

Author: coado

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactHost.kt

@@ -189,7 +189,10 @@ public interface ReactHost {
 
   /** Remove a listener previously added with [addReactInstanceEventListener]. */
   public fun removeReactInstanceEventListener(listener: ReactInstanceEventListener)
-  
+
+  /** Sets the source of the bundle to be loaded from the file system. */
+  public fun setBundleSource(filePath: String)
+
   /** 
    * Sets the source of the bundle to be loaded from the packager server and updates the packager connection.
    *

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/devsupport/DevSupportManagerBase.kt

@@ -91,6 +91,7 @@ public abstract class DevSupportManagerBase(
     private val surfaceDelegateFactory: SurfaceDelegateFactory?,
     public var devLoadingViewManager: DevLoadingViewManager?,
     private var pausedInDebuggerOverlayManager: PausedInDebuggerOverlayManager?,
+    private var customBundleFilePathField: String? = null
 ) : DevSupportManager {
 
   public interface CallbackWithBundleLoader {
@@ -129,6 +130,12 @@ public abstract class DevSupportManagerBase(
       reloadSettings()
     }
 
+  override var customBundleFilePath: String?
+    get() = customBundleFilePathField
+    set(value) {
+      customBundleFilePathField = value
+    }
+
   override val sourceMapUrl: String
     get() = jsAppBundleName?.let { devServerHelper.getSourceMapUrl(it) } ?: ""
 
@@ -547,7 +554,7 @@ public abstract class DevSupportManagerBase(
                 isEnabled = isEnabled(position)
                 if (this is TextView) {
                   setTextColor(
-                      if (isEnabled) android.graphics.Color.WHITE else android.graphics.Color.GRAY
+                      if (isEnabled) android.graphics.Color.BLACK else android.graphics.Color.GRAY
                   )
                 }
               }

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/devsupport/interfaces/DevSupportManager.kt

@@ -36,6 +36,10 @@ public interface DevSupportManager : JSExceptionHandler {
   public val currentActivity: Activity?
   public val currentReactContext: ReactContext?
 
+  public var customBundleFilePath: String?
+    get() = null
+    set(_) = Unit
+
   public var devSupportEnabled: Boolean
 
   public fun showNewJavaError(message: String?, e: Throwable)

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/ReactHostImpl.kt

@@ -646,6 +646,12 @@ public class ReactHostImpl(
     }
   }
 
+  @ThreadConfined(value = ThreadConfined.UI)
+  override fun setBundleSource(filePath: String) {
+    devSupportManager.customBundleFilePath = filePath
+    reload("Change bundle source")
+  }
+
   @ThreadConfined(value = ThreadConfined.UI)
   override fun setBundleSource(debugServerHost: String, moduleName: String, queryBuilder: (Map<String, String>) -> Map<String, String>) {
     CoroutineScope(Dispatchers.Default).launch {
@@ -1073,6 +1079,14 @@ public class ReactHostImpl(
     get() {
       stateTracker.enterState("getJSBundleLoader()")
 
+      if (devSupportManager.customBundleFilePath != null) {
+        return try {
+          Task.forResult(JSBundleLoader.createFileLoader(devSupportManager.customBundleFilePath!!))
+        } catch(e: Exception) {
+          Task.forError(e)
+        }
+      }
+
       if (useDevSupport && allowPackagerServerAccess) {
         return isMetroRunning.onSuccessTask(
             { task ->