Implement Fabric Reconciler

Reviewed By: achen1

Differential Revision: D7240208

fbshipit-source-id: 236b76146c50fb7f357190b08f8a5bfcef7f6645

ReactAndroid/src/main/java/com/facebook/react/common/ArrayUtils.java

@@ -1,6 +1,7 @@
 package com.facebook.react.common;
 
 import java.util.Arrays;
+import java.util.List;
 
 public class ArrayUtils {
 
@@ -8,4 +9,12 @@ public class ArrayUtils {
     return array == null ? null : Arrays.copyOf(array, array.length);
   }
 
+  public static int[] copyListToArray(List<Integer> list) {
+    int[] array = new int[list.size()];
+    for (int t = 0 ; t < list.size() ; t++) {
+      array[t] = list.get(t);
+    }
+    return array;
+  }
+
 }