patrickhammond · October 12, 2016 20:00 · Oct 12, 2016
diff --git a/ParcelableHelper.java b/ParcelableHelper.java
@@ -0,0 +1,33 @@
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+public class ParcelableHelper {
+    /**
+     * There is not always a guarantee that Parcelable values will be immediately written out and
+     * read back in.  For data data that mutable (its own issue), this can be a problem.  This is
+     * for the times when it would be great to have confidence that you will be working with a copy
+     * of that data.
+     */
+    public static Parcelable immediateDeepCopy(Parcelable input) {
+        return immediateDeepCopy(input, input.getClass().getClassLoader());
+    }
+
+    /**
+     * Same as {@link #immediateDeepCopy(android.os.Parcelable)}, but for when you need a little
+     * more control over which ClassLoader will be used.
+     */
+    public static Parcelable immediateDeepCopy(Parcelable input, ClassLoader classLoader) {
+        Parcel parcel = null;
+        try {
+            parcel = Parcel.obtain();
+            parcel.writeParcelable(input, 0);
+            parcel.setDataPosition(0);
+            return parcel.readParcelable(classLoader);
+        } finally {
+            if (parcel != null) {
+                parcel.recycle();
+            }
+        }
+    }
+}