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Add separate activity for index stuff
Signed-off-by: Alex Saveau <saveau.alexandre@gmail.com>
1 parent b2ffadf commit 758b692

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3 files changed

+113
-56
lines changed

3 files changed

+113
-56
lines changed

‎app/src/main/AndroidManifest.xml‎

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@@ -30,6 +30,9 @@
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<activity
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android:name=".database.ChatActivity"
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android:label="@string/name_chat"/>
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<activity
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android:name=".database.ChatIndexActivity"
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android:label="@string/name_chat"/>
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<!-- Auth UI demo -->
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<activity

‎app/src/main/java/com/firebase/uidemo/database/ChatActivity.java‎

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@@ -26,31 +26,29 @@
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import android.widget.TextView;
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import android.widget.Toast;
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import com.firebase.ui.database.FirebaseIndexRecyclerAdapter;
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import com.firebase.ui.database.FirebaseRecyclerAdapter;
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import com.firebase.uidemo.R;
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import com.firebase.uidemo.util.SignInResultNotifier;
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import com.google.android.gms.tasks.OnSuccessListener;
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import com.google.firebase.auth.AuthResult;
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import com.google.firebase.auth.FirebaseAuth;
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import com.google.firebase.database.DataSnapshot;
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import com.google.firebase.database.DatabaseError;
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import com.google.firebase.database.DatabaseReference;
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import com.google.firebase.database.FirebaseDatabase;
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import com.google.firebase.database.Query;
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public class ChatActivity extends AppCompatActivity implements FirebaseAuth.AuthStateListener {
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public class ChatActivity extends AppCompatActivity implements FirebaseAuth.AuthStateListener, View.OnClickListener {
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private static final String TAG = "RecyclerViewDemo";
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private FirebaseAuth mAuth;
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private DatabaseReference mChatIndicesRef;
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private DatabaseReference mChatRef;
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protected DatabaseReference mChatRef;
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private Button mSendButton;
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private EditText mMessageEdit;
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protected EditText mMessageEdit;
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private RecyclerView mMessages;
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private LinearLayoutManager mManager;
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private FirebaseRecyclerAdapter<Chat, ChatHolder> mAdapter;
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private TextView mEmptyListMessage;
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protected FirebaseRecyclerAdapter<Chat, ChatHolder> mAdapter;
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protected TextView mEmptyListMessage;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
@@ -64,31 +62,9 @@ protected void onCreate(Bundle savedInstanceState) {
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mMessageEdit = (EditText) findViewById(R.id.messageEdit);
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mEmptyListMessage = (TextView) findViewById(R.id.emptyTextView);
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DatabaseReference ref = FirebaseDatabase.getInstance().getReference();
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mChatIndicesRef = ref.child("chatIndices");
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mChatRef = ref.child("chats");
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mChatRef = FirebaseDatabase.getInstance().getReference().child("chats");
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mSendButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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String uid = mAuth.getCurrentUser().getUid();
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String name = "User " + uid.substring(0, 6);
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Chat chat = new Chat(name, mMessageEdit.getText().toString(), uid);
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DatabaseReference chatRef = mChatRef.push();
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mChatIndicesRef.child(chatRef.getKey()).setValue(true);
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chatRef.setValue(chat, new DatabaseReference.CompletionListener() {
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@Override
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public void onComplete(DatabaseError error, DatabaseReference reference) {
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if (error != null) {
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Log.e(TAG, "Failed to write message", error.toException());
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}
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}
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});
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mMessageEdit.setText("");
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}
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});
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mSendButton.setOnClickListener(this);
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mManager = new LinearLayoutManager(this);
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mManager.setReverseLayout(false);
@@ -128,50 +104,61 @@ public void onDestroy() {
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}
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}
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@Override
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public void onClick(View v) {
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String uid = mAuth.getCurrentUser().getUid();
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String name = "User " + uid.substring(0, 6);
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Chat chat = new Chat(name, mMessageEdit.getText().toString(), uid);
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mChatRef.push().setValue(chat, new DatabaseReference.CompletionListener() {
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@Override
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public void onComplete(DatabaseError error, DatabaseReference reference) {
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if (error != null) {
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Log.e(TAG, "Failed to write message", error.toException());
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}
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}
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});
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mMessageEdit.setText("");
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}
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@Override
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public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
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updateUI();
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}
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private void attachRecyclerViewAdapter() {
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mAdapter = new FirebaseIndexRecyclerAdapter<Chat, ChatHolder>(
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mAdapter = getAdapter();
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// Scroll to bottom on new messages
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mAdapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
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@Override
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public void onItemRangeInserted(int positionStart, int itemCount) {
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mManager.smoothScrollToPosition(mMessages, null, mAdapter.getItemCount());
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}
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});
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mMessages.setAdapter(mAdapter);
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}
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protected FirebaseRecyclerAdapter<Chat, ChatHolder> getAdapter() {
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Query lastFifty = mChatRef.limitToLast(50);
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return new FirebaseRecyclerAdapter<Chat, ChatHolder>(
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Chat.class,
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R.layout.message,
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ChatHolder.class,
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mChatIndicesRef.limitToLast(50),
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mChatRef) {
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lastFifty) {
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@Override
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public void populateViewHolder(ChatHolder holder, Chat chat, int position) {
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holder.bind(chat);
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}
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148-
@Override
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public void onChildChanged(EventType type,
150-
DataSnapshot snapshot,
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int index,
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int oldIndex) {
153-
super.onChildChanged(type, snapshot, index, oldIndex);
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// TODO temporary fix for https://github.com/firebase/FirebaseUI-Android/issues/546
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onDataChanged();
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}
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@Override
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public void onDataChanged() {
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// If there are no chat messages, show a view that invites the user to add a message.
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mEmptyListMessage.setVisibility(getItemCount() == 0 ? View.VISIBLE : View.GONE);
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}
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};
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// Scroll to bottom on new messages
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mAdapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
168-
@Override
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public void onItemRangeInserted(int positionStart, int itemCount) {
170-
mManager.smoothScrollToPosition(mMessages, null, mAdapter.getItemCount());
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}
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});
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mMessages.setAdapter(mAdapter);
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}
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private void signInAnonymously() {

‎app/src/main/java/com/firebase/uidemo/database/ChatIndexActivity.java‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,67 @@
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package com.firebase.uidemo.database;
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import android.os.Bundle;
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import android.view.View;
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import com.firebase.ui.database.FirebaseIndexRecyclerAdapter;
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import com.firebase.ui.database.FirebaseRecyclerAdapter;
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import com.firebase.uidemo.R;
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import com.google.firebase.auth.FirebaseAuth;
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import com.google.firebase.database.DataSnapshot;
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import com.google.firebase.database.DatabaseReference;
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import com.google.firebase.database.FirebaseDatabase;
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public class ChatIndexActivity extends ChatActivity {
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private DatabaseReference mChatIndicesRef;
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17+
@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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mChatIndicesRef = FirebaseDatabase.getInstance().getReference().child("chatIndices");
21+
}
22+
23+
@Override
24+
public void onClick(View v) {
25+
String uid = FirebaseAuth.getInstance().getCurrentUser().getUid();
26+
String name = "User " + uid.substring(0, 6);
27+
Chat chat = new Chat(name, mMessageEdit.getText().toString(), uid);
28+
29+
DatabaseReference chatRef = mChatRef.push();
30+
mChatIndicesRef.child(chatRef.getKey()).setValue(true);
31+
chatRef.setValue(chat);
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33+
mMessageEdit.setText("");
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}
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36+
@Override
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protected FirebaseRecyclerAdapter<Chat, ChatHolder> getAdapter() {
38+
return new FirebaseIndexRecyclerAdapter<Chat, ChatHolder>(
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Chat.class,
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R.layout.message,
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ChatHolder.class,
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mChatIndicesRef.limitToLast(50),
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mChatRef) {
44+
@Override
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public void populateViewHolder(ChatHolder holder, Chat chat, int position) {
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holder.bind(chat);
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}
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49+
@Override
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public void onChildChanged(EventType type,
51+
DataSnapshot snapshot,
52+
int index,
53+
int oldIndex) {
54+
super.onChildChanged(type, snapshot, index, oldIndex);
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56+
// TODO temporary fix for https://github.com/firebase/FirebaseUI-Android/issues/546
57+
onDataChanged();
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}
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60+
@Override
61+
public void onDataChanged() {
62+
// If there are no chat messages, show a view that invites the user to add a message.
63+
mEmptyListMessage.setVisibility(getItemCount() == 0 ? View.VISIBLE : View.GONE);
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}
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};
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}
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}

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