From b32f447f89f2af4894aa9a41335c81fe1be9cadf Mon Sep 17 00:00:00 2001
From: Andrew Datsenko <asd@meta.com>
Date: Mon, 29 Jul 2024 06:27:24 -0700
Subject: [PATCH] 
 xplat/js/react-native-github/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/IViewGroupManager.java
 (#45730)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/45730

Changelog: [Internal]

Reviewed By: rshest

Differential Revision: D60233485

fbshipit-source-id: 9910b5c5c66a72d2698233b6be0f509f14047ff0
---
 .../react/uimanager/IViewGroupManager.java    | 42 -------------------
 .../react/uimanager/IViewGroupManager.kt      | 35 ++++++++++++++++
 2 files changed, 35 insertions(+), 42 deletions(-)
 delete mode 100644 packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/IViewGroupManager.java
 create mode 100644 packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/IViewGroupManager.kt

diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/IViewGroupManager.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/IViewGroupManager.java
deleted file mode 100644
index ea3d91fb3ea..00000000000
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/IViewGroupManager.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * 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.uimanager;
-
-import android.view.View;
-import androidx.annotation.Nullable;
-import com.facebook.infer.annotation.Nullsafe;
-import com.facebook.react.bridge.UiThreadUtil;
-
-/** Interface providing children management API for view managers of classes extending ViewGroup. */
-@Nullsafe(Nullsafe.Mode.LOCAL)
-public interface IViewGroupManager<T extends View> extends IViewManagerWithChildren {
-
-  /** Adds a child view into the parent at the index specified as a parameter */
-  void addView(T parent, View child, int index);
-
-  /**
-   * @return child of the parent view at the index specified as a parameter.
-   */
-  @Nullable
-  View getChildAt(T parent, int index);
-
-  /** Removes View from the parent View at the index specified as a parameter. */
-  void removeViewAt(T parent, int index);
-
-  /** Remove all child views from the parent View. */
-  default void removeAllViews(T parent) {
-    UiThreadUtil.assertOnUiThread();
-
-    for (int i = getChildCount(parent) - 1; i >= 0; i--) {
-      removeViewAt(parent, i);
-    }
-  }
-
-  /** Return the amount of children contained by the view specified as a parameter. */
-  int getChildCount(T parent);
-}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/IViewGroupManager.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/IViewGroupManager.kt
new file mode 100644
index 00000000000..ef45524c689
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/IViewGroupManager.kt
@@ -0,0 +1,35 @@
+/*
+ * 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.uimanager
+
+import android.view.View
+import com.facebook.react.bridge.UiThreadUtil
+
+/** Interface providing children management API for view managers of classes extending ViewGroup. */
+public interface IViewGroupManager<T : View> : IViewManagerWithChildren {
+
+  /** Adds a child view into the parent at the index specified as a parameter */
+  public fun addView(parent: T, child: View, index: Int)
+
+  /** @return child of the parent view at the index specified as a parameter. */
+  public fun getChildAt(parent: T, index: Int): View?
+
+  /** Removes View from the parent View at the index specified as a parameter. */
+  public fun removeViewAt(parent: T, index: Int)
+
+  /** Remove all child views from the parent View. */
+  public fun removeAllViews(parent: T) {
+    UiThreadUtil.assertOnUiThread()
+    for (i in getChildCount(parent) - 1 downTo 0) {
+      removeViewAt(parent, i)
+    }
+  }
+
+  /** Return the amount of children contained by the view specified as a parameter. */
+  public fun getChildCount(parent: T): Int
+}