Fix nested popup view crash

Bug: 278306916
Test: manual

Change-Id: I56fa4610b0723598b098e1e2f0be4873e9937b93
diff --git a/emoji2/emoji2-emojipicker/src/main/java/androidx/emoji2/emojipicker/EmojiViewHolder.kt b/emoji2/emoji2-emojipicker/src/main/java/androidx/emoji2/emojipicker/EmojiViewHolder.kt
index c6962da..94e4abc 100644
--- a/emoji2/emoji2-emojipicker/src/main/java/androidx/emoji2/emojipicker/EmojiViewHolder.kt
+++ b/emoji2/emoji2-emojipicker/src/main/java/androidx/emoji2/emojipicker/EmojiViewHolder.kt
@@ -112,7 +112,7 @@
                     .getDimensionPixelSize(R.dimen.emoji_picker_popup_view_elevation)
                     .toFloat()
             showAtLocation(
-                emojiView,
+                popupView,
                 Gravity.NO_GRAVITY,
                 x.roundToInt(),
                 y