Save RTT chat history during the call.

Thus putting call into background won't lose the history.
This is only stored in memory by making RttChatMessage Parcelable and saved
along with fragment's life cycle.

Bug: 67596257
Test: manual
PiperOrigin-RevId: 188500104
Change-Id: I11e8e55f0475defd9c3b9a8cc10db4186392ddd8

1 files changed, 11 insertions, 1 deletions

diff --git a/java/com/android/incallui/rtt/impl/RttChatFragment.java b/java/com/android/incallui/rtt/impl/RttChatFragment.java
index f9c91e5fb..9e8a24a48 100644
--- a/java/com/android/incallui/rtt/impl/RttChatFragment.java
+++ b/java/com/android/incallui/rtt/impl/RttChatFragment.java
@@ -124,6 +124,8 @@ public class RttChatFragment extends Fragment
     if (savedInstanceState != null) {
       inCallButtonUiDelegate.onRestoreInstanceState(savedInstanceState);
     }
+    // Prevent updating local message until UI is ready.
+    isClearingInput = true;
   }
 
   @Override
@@ -158,7 +160,7 @@ public class RttChatFragment extends Fragment
     layoutManager.setStackFromEnd(true);
     recyclerView.setLayoutManager(layoutManager);
     recyclerView.setHasFixedSize(false);
-    adapter = new RttChatAdapter(getContext(), this);
+    adapter = new RttChatAdapter(getContext(), this, savedInstanceState);
     recyclerView.setAdapter(adapter);
     recyclerView.addOnScrollListener(onScrollListener);
     submitButton = view.findViewById(R.id.rtt_chat_submit_button);
@@ -242,13 +244,21 @@ public class RttChatFragment extends Fragment
   public void onStart() {
     LogUtil.enterBlock("RttChatFragment.onStart");
     super.onStart();
+    isClearingInput = false;
     onRttScreenStart();
   }
 
   @Override
+  public void onSaveInstanceState(@NonNull Bundle bundle) {
+    super.onSaveInstanceState(bundle);
+    adapter.onSaveInstanceState(bundle);
+  }
+
+  @Override
   public void onStop() {
     LogUtil.enterBlock("RttChatFragment.onStop");
     super.onStop();
+    isClearingInput = true;
     if (overflowMenu.isShowing()) {
       overflowMenu.dismiss();
     }