(
- Chat.class,
- R.layout.message,
- ChatHolder.class,
- mChatIndicesRef.limitToLast(50),
- mChatRef,
- this) {
- @Override
- public void populateViewHolder(ChatHolder holder, Chat chat, int position) {
- holder.bind(chat);
- }
-
- @Override
- public void onDataChanged() {
- // If there are no chat messages, show a view that invites the user to add a message.
- mEmptyListMessage.setVisibility(getItemCount() == 0 ? View.VISIBLE : View.GONE);
- }
- };
- }
-}
diff --git a/app/src/main/java/com/firebase/uidemo/database/firestore/Chat.java b/app/src/main/java/com/firebase/uidemo/database/firestore/Chat.java
new file mode 100644
index 000000000..d24b095b8
--- /dev/null
+++ b/app/src/main/java/com/firebase/uidemo/database/firestore/Chat.java
@@ -0,0 +1,59 @@
+package com.firebase.uidemo.database.firestore;
+
+import com.firebase.uidemo.database.AbstractChat;
+import com.google.firebase.firestore.IgnoreExtraProperties;
+import com.google.firebase.firestore.ServerTimestamp;
+
+import java.util.Date;
+
+@IgnoreExtraProperties
+public class Chat extends AbstractChat {
+
+ private String mName;
+ private String mMessage;
+ private String mUid;
+ private Date mTimestamp;
+
+ public Chat() {
+ // Needed for Firebase
+ }
+
+ public Chat(String name, String message, String uid) {
+ mName = name;
+ mMessage = message;
+ mUid = uid;
+ }
+
+ public String getName() {
+ return mName;
+ }
+
+ public void setName(String name) {
+ mName = name;
+ }
+
+ public String getMessage() {
+ return mMessage;
+ }
+
+ public void setMessage(String message) {
+ mMessage = message;
+ }
+
+ public String getUid() {
+ return mUid;
+ }
+
+ public void setUid(String uid) {
+ mUid = uid;
+ }
+
+ @ServerTimestamp
+ public Date getTimestamp() {
+ return mTimestamp;
+ }
+
+ public void setTimestamp(Date timestamp) {
+ mTimestamp = timestamp;
+ }
+}
diff --git a/app/src/main/java/com/firebase/uidemo/database/firestore/FirestoreChatActivity.java b/app/src/main/java/com/firebase/uidemo/database/firestore/FirestoreChatActivity.java
new file mode 100644
index 000000000..271342ce1
--- /dev/null
+++ b/app/src/main/java/com/firebase/uidemo/database/firestore/FirestoreChatActivity.java
@@ -0,0 +1,173 @@
+package com.firebase.uidemo.database.firestore;
+
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.firebase.ui.auth.ui.ImeHelper;
+import com.firebase.ui.firestore.FirestoreRecyclerAdapter;
+import com.firebase.ui.firestore.FirestoreRecyclerOptions;
+import com.firebase.uidemo.R;
+import com.firebase.uidemo.database.ChatHolder;
+import com.firebase.uidemo.database.realtime.Chat;
+import com.firebase.uidemo.util.LifecycleActivity;
+import com.firebase.uidemo.util.SignInResultNotifier;
+import com.google.android.gms.tasks.OnFailureListener;
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.firestore.CollectionReference;
+import com.google.firebase.firestore.FirebaseFirestore;
+import com.google.firebase.firestore.Query;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+
+/**
+ * Class demonstrating how to setup a {@link RecyclerView} with an adapter while taking sign-in
+ * states into consideration. Also demonstrates adding data to a ref and then reading it back using
+ * the {@link FirestoreRecyclerAdapter} to build a simple chat app.
+ *
+ * For a general intro to the RecyclerView, see Creating
+ * Lists.
+ */
+public class FirestoreChatActivity extends LifecycleActivity
+ implements FirebaseAuth.AuthStateListener {
+ private static final String TAG = "FirestoreChatActivity";
+
+ private static final CollectionReference sChatCollection =
+ FirebaseFirestore.getInstance().collection("chats");
+ /** Get the last 50 chat messages ordered by timestamp . */
+ private static final Query sChatQuery = sChatCollection.orderBy("timestamp").limit(50);
+
+ static {
+ FirebaseFirestore.setLoggingEnabled(true);
+ }
+
+ @BindView(R.id.messagesList)
+ RecyclerView mRecyclerView;
+
+ @BindView(R.id.sendButton)
+ Button mSendButton;
+
+ @BindView(R.id.messageEdit)
+ EditText mMessageEdit;
+
+ @BindView(R.id.emptyTextView)
+ TextView mEmptyListMessage;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_chat);
+ ButterKnife.bind(this);
+
+ mRecyclerView.setHasFixedSize(true);
+ mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
+
+ ImeHelper.setImeOnDoneListener(mMessageEdit, new ImeHelper.DonePressedListener() {
+ @Override
+ public void onDonePressed() {
+ onSendClick();
+ }
+ });
+ }
+
+ @Override
+ public void onStart() {
+ super.onStart();
+ if (isSignedIn()) { attachRecyclerViewAdapter(); }
+ FirebaseAuth.getInstance().addAuthStateListener(this);
+ }
+
+ @Override
+ protected void onStop() {
+ super.onStop();
+ FirebaseAuth.getInstance().removeAuthStateListener(this);
+ }
+
+ @Override
+ public void onAuthStateChanged(@NonNull FirebaseAuth auth) {
+ mSendButton.setEnabled(isSignedIn());
+ mMessageEdit.setEnabled(isSignedIn());
+
+ if (isSignedIn()) {
+ attachRecyclerViewAdapter();
+ } else {
+ Toast.makeText(this, R.string.signing_in, Toast.LENGTH_SHORT).show();
+ auth.signInAnonymously().addOnCompleteListener(new SignInResultNotifier(this));
+ }
+ }
+
+ private boolean isSignedIn() {
+ return FirebaseAuth.getInstance().getCurrentUser() != null;
+ }
+
+ private void attachRecyclerViewAdapter() {
+ final RecyclerView.Adapter adapter = newAdapter();
+
+ // Scroll to bottom on new messages
+ adapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
+ @Override
+ public void onItemRangeInserted(int positionStart, int itemCount) {
+ mRecyclerView.smoothScrollToPosition(adapter.getItemCount());
+ }
+ });
+
+ mRecyclerView.setAdapter(adapter);
+ }
+
+ @OnClick(R.id.sendButton)
+ public void onSendClick() {
+ String uid = FirebaseAuth.getInstance().getCurrentUser().getUid();
+ String name = "User " + uid.substring(0, 6);
+
+ onAddMessage(new Chat(name, mMessageEdit.getText().toString(), uid));
+
+ mMessageEdit.setText("");
+ }
+
+ protected RecyclerView.Adapter newAdapter() {
+ FirestoreRecyclerOptions options =
+ new FirestoreRecyclerOptions.Builder()
+ .setQuery(sChatQuery, Chat.class)
+ .setLifecycleOwner(this)
+ .build();
+
+ return new FirestoreRecyclerAdapter(options) {
+ @Override
+ public ChatHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+ return new ChatHolder(LayoutInflater.from(parent.getContext())
+ .inflate(R.layout.message, parent, false));
+ }
+
+ @Override
+ protected void onBindViewHolder(ChatHolder holder, int position, Chat model) {
+ holder.bind(model);
+ }
+
+ @Override
+ public void onDataChanged() {
+ // If there are no chat messages, show a view that invites the user to add a message.
+ mEmptyListMessage.setVisibility(getItemCount() == 0 ? View.VISIBLE : View.GONE);
+ }
+ };
+ }
+
+ protected void onAddMessage(Chat chat) {
+ sChatCollection.add(chat).addOnFailureListener(this, new OnFailureListener() {
+ @Override
+ public void onFailure(@NonNull Exception e) {
+ Log.e(TAG, "Failed to write message", e);
+ }
+ });
+ }
+}
diff --git a/app/src/main/java/com/firebase/uidemo/database/Chat.java b/app/src/main/java/com/firebase/uidemo/database/realtime/Chat.java
similarity index 75%
rename from app/src/main/java/com/firebase/uidemo/database/Chat.java
rename to app/src/main/java/com/firebase/uidemo/database/realtime/Chat.java
index c4fc6efdb..3e37eb98a 100644
--- a/app/src/main/java/com/firebase/uidemo/database/Chat.java
+++ b/app/src/main/java/com/firebase/uidemo/database/realtime/Chat.java
@@ -1,6 +1,11 @@
-package com.firebase.uidemo.database;
+package com.firebase.uidemo.database.realtime;
+
+import com.firebase.uidemo.database.AbstractChat;
+import com.google.firebase.database.IgnoreExtraProperties;
+
+@IgnoreExtraProperties
+public class Chat extends AbstractChat {
-public class Chat {
private String mName;
private String mMessage;
private String mUid;
diff --git a/app/src/main/java/com/firebase/uidemo/database/realtime/RealtimeDbChatActivity.java b/app/src/main/java/com/firebase/uidemo/database/realtime/RealtimeDbChatActivity.java
new file mode 100644
index 000000000..131990997
--- /dev/null
+++ b/app/src/main/java/com/firebase/uidemo/database/realtime/RealtimeDbChatActivity.java
@@ -0,0 +1,171 @@
+package com.firebase.uidemo.database.realtime;
+
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.firebase.ui.auth.ui.ImeHelper;
+import com.firebase.ui.database.FirebaseRecyclerAdapter;
+import com.firebase.ui.database.FirebaseRecyclerOptions;
+import com.firebase.uidemo.R;
+import com.firebase.uidemo.database.ChatHolder;
+import com.firebase.uidemo.util.LifecycleActivity;
+import com.firebase.uidemo.util.SignInResultNotifier;
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.database.DatabaseError;
+import com.google.firebase.database.DatabaseReference;
+import com.google.firebase.database.FirebaseDatabase;
+import com.google.firebase.database.Query;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+
+/**
+ * Class demonstrating how to setup a {@link RecyclerView} with an adapter while taking sign-in
+ * states into consideration. Also demonstrates adding data to a ref and then reading it back using
+ * the {@link FirebaseRecyclerAdapter} to build a simple chat app.
+ *
+ * For a general intro to the RecyclerView, see Creating
+ * Lists.
+ */
+public class RealtimeDbChatActivity extends LifecycleActivity
+ implements FirebaseAuth.AuthStateListener {
+ private static final String TAG = "RealtimeDatabaseDemo";
+
+ /**
+ * Get the last 50 chat messages.
+ */
+ protected static final Query sChatQuery =
+ FirebaseDatabase.getInstance().getReference().child("chats").limitToLast(50);
+
+ @BindView(R.id.messagesList)
+ RecyclerView mRecyclerView;
+
+ @BindView(R.id.sendButton)
+ Button mSendButton;
+
+ @BindView(R.id.messageEdit)
+ EditText mMessageEdit;
+
+ @BindView(R.id.emptyTextView)
+ TextView mEmptyListMessage;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_chat);
+ ButterKnife.bind(this);
+
+ mRecyclerView.setHasFixedSize(true);
+ mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
+
+ ImeHelper.setImeOnDoneListener(mMessageEdit, new ImeHelper.DonePressedListener() {
+ @Override
+ public void onDonePressed() {
+ onSendClick();
+ }
+ });
+ }
+
+ @Override
+ public void onStart() {
+ super.onStart();
+ if (isSignedIn()) { attachRecyclerViewAdapter(); }
+ FirebaseAuth.getInstance().addAuthStateListener(this);
+ }
+
+ @Override
+ protected void onStop() {
+ super.onStop();
+ FirebaseAuth.getInstance().removeAuthStateListener(this);
+ }
+
+ @Override
+ public void onAuthStateChanged(@NonNull FirebaseAuth auth) {
+ mSendButton.setEnabled(isSignedIn());
+ mMessageEdit.setEnabled(isSignedIn());
+
+ if (isSignedIn()) {
+ attachRecyclerViewAdapter();
+ } else {
+ Toast.makeText(this, R.string.signing_in, Toast.LENGTH_SHORT).show();
+ auth.signInAnonymously().addOnCompleteListener(new SignInResultNotifier(this));
+ }
+ }
+
+ private boolean isSignedIn() {
+ return FirebaseAuth.getInstance().getCurrentUser() != null;
+ }
+
+ private void attachRecyclerViewAdapter() {
+ final RecyclerView.Adapter adapter = newAdapter();
+
+ // Scroll to bottom on new messages
+ adapter.registerAdapterDataObserver(new RecyclerView.AdapterDataObserver() {
+ @Override
+ public void onItemRangeInserted(int positionStart, int itemCount) {
+ mRecyclerView.smoothScrollToPosition(adapter.getItemCount());
+ }
+ });
+
+ mRecyclerView.setAdapter(adapter);
+ }
+
+ @OnClick(R.id.sendButton)
+ public void onSendClick() {
+ String uid = FirebaseAuth.getInstance().getCurrentUser().getUid();
+ String name = "User " + uid.substring(0, 6);
+
+ onAddMessage(new Chat(name, mMessageEdit.getText().toString(), uid));
+
+ mMessageEdit.setText("");
+ }
+
+ protected RecyclerView.Adapter newAdapter() {
+ FirebaseRecyclerOptions options =
+ new FirebaseRecyclerOptions.Builder()
+ .setQuery(sChatQuery, Chat.class)
+ .setLifecycleOwner(this)
+ .build();
+
+ return new FirebaseRecyclerAdapter(options) {
+ @Override
+ public ChatHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+ return new ChatHolder(LayoutInflater.from(parent.getContext())
+ .inflate(R.layout.message, parent, false));
+ }
+
+ @Override
+ protected void onBindViewHolder(ChatHolder holder, int position, Chat model) {
+ holder.bind(model);
+ }
+
+ @Override
+ public void onDataChanged() {
+ // If there are no chat messages, show a view that invites the user to add a message.
+ mEmptyListMessage.setVisibility(getItemCount() == 0 ? View.VISIBLE : View.GONE);
+ }
+ };
+ }
+
+ protected void onAddMessage(Chat chat) {
+ sChatQuery.getRef().push().setValue(chat, new DatabaseReference.CompletionListener() {
+ @Override
+ public void onComplete(DatabaseError error, DatabaseReference reference) {
+ if (error != null) {
+ Log.e(TAG, "Failed to write message", error.toException());
+ }
+ }
+ });
+ }
+}
diff --git a/app/src/main/java/com/firebase/uidemo/database/realtime/RealtimeDbChatIndexActivity.java b/app/src/main/java/com/firebase/uidemo/database/realtime/RealtimeDbChatIndexActivity.java
new file mode 100644
index 000000000..b6c57498c
--- /dev/null
+++ b/app/src/main/java/com/firebase/uidemo/database/realtime/RealtimeDbChatIndexActivity.java
@@ -0,0 +1,58 @@
+package com.firebase.uidemo.database.realtime;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.firebase.ui.database.FirebaseRecyclerAdapter;
+import com.firebase.ui.database.FirebaseRecyclerOptions;
+import com.firebase.uidemo.R;
+import com.firebase.uidemo.database.ChatHolder;
+import com.google.firebase.auth.FirebaseAuth;
+import com.google.firebase.database.DatabaseReference;
+import com.google.firebase.database.FirebaseDatabase;
+
+public class RealtimeDbChatIndexActivity extends RealtimeDbChatActivity {
+ private DatabaseReference mChatIndicesRef;
+
+ @Override
+ protected FirebaseRecyclerAdapter newAdapter() {
+ mChatIndicesRef = FirebaseDatabase.getInstance()
+ .getReference()
+ .child("chatIndices")
+ .child(FirebaseAuth.getInstance().getCurrentUser().getUid());
+
+ FirebaseRecyclerOptions options =
+ new FirebaseRecyclerOptions.Builder()
+ .setIndexedQuery(
+ mChatIndicesRef.limitToFirst(50), sChatQuery.getRef(), Chat.class)
+ .setLifecycleOwner(this)
+ .build();
+
+ return new FirebaseRecyclerAdapter(options) {
+ @Override
+ public ChatHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+ return new ChatHolder(LayoutInflater.from(parent.getContext())
+ .inflate(R.layout.message, parent, false));
+ }
+
+ @Override
+ protected void onBindViewHolder(ChatHolder holder, int position, Chat model) {
+ holder.bind(model);
+ }
+
+ @Override
+ public void onDataChanged() {
+ // If there are no chat messages, show a view that invites the user to add a message.
+ mEmptyListMessage.setVisibility(getItemCount() == 0 ? View.VISIBLE : View.GONE);
+ }
+ };
+ }
+
+ @Override
+ protected void onAddMessage(Chat chat) {
+ DatabaseReference chatRef = sChatQuery.getRef().push();
+ mChatIndicesRef.child(chatRef.getKey()).setValue(true);
+ chatRef.setValue(chat);
+ }
+}
diff --git a/app/src/main/java/com/firebase/uidemo/storage/ImageActivity.java b/app/src/main/java/com/firebase/uidemo/storage/ImageActivity.java
index 6f39bf783..71949baf8 100644
--- a/app/src/main/java/com/firebase/uidemo/storage/ImageActivity.java
+++ b/app/src/main/java/com/firebase/uidemo/storage/ImageActivity.java
@@ -13,8 +13,7 @@
import android.widget.ImageView;
import android.widget.Toast;
-import com.bumptech.glide.Glide;
-import com.firebase.ui.storage.images.FirebaseImageLoader;
+import com.bumptech.glide.load.resource.drawable.DrawableTransitionOptions;
import com.firebase.uidemo.R;
import com.firebase.uidemo.util.SignInResultNotifier;
import com.google.android.gms.tasks.OnFailureListener;
@@ -131,11 +130,11 @@ public void onFailure(@NonNull Exception e) {
@OnClick(R.id.button_download_direct)
protected void downloadDirect() {
// Download directly from StorageReference using Glide
- Glide.with(this)
- .using(new FirebaseImageLoader())
+ // (See MyAppGlideModule for Loader registration)
+ GlideApp.with(this)
.load(mImageRef)
.centerCrop()
- .crossFade()
+ .transition(DrawableTransitionOptions.withCrossFade())
.into(mImageView);
}
diff --git a/app/src/main/java/com/firebase/uidemo/storage/MyAppGlideModule.java b/app/src/main/java/com/firebase/uidemo/storage/MyAppGlideModule.java
new file mode 100644
index 000000000..ccbffbbf8
--- /dev/null
+++ b/app/src/main/java/com/firebase/uidemo/storage/MyAppGlideModule.java
@@ -0,0 +1,28 @@
+package com.firebase.uidemo.storage;
+
+import android.content.Context;
+
+import com.bumptech.glide.Glide;
+import com.bumptech.glide.Registry;
+import com.bumptech.glide.annotation.GlideModule;
+import com.bumptech.glide.module.AppGlideModule;
+import com.firebase.ui.storage.images.FirebaseImageLoader;
+import com.google.firebase.storage.StorageReference;
+
+import java.io.InputStream;
+
+/**
+ * Glide module to register {@link com.firebase.ui.storage.images.FirebaseImageLoader}.
+ * See: http://bumptech.github.io/glide/doc/generatedapi.html
+ */
+@GlideModule
+public class MyAppGlideModule extends AppGlideModule {
+
+ @Override
+ public void registerComponents(Context context, Glide glide, Registry registry) {
+ // Register FirebaseImageLoader to handle StorageReference
+ registry.append(StorageReference.class, InputStream.class,
+ new FirebaseImageLoader.Factory());
+ }
+
+}
diff --git a/app/src/main/java/com/firebase/uidemo/util/LifecycleActivity.java b/app/src/main/java/com/firebase/uidemo/util/LifecycleActivity.java
new file mode 100644
index 000000000..808cb071d
--- /dev/null
+++ b/app/src/main/java/com/firebase/uidemo/util/LifecycleActivity.java
@@ -0,0 +1,16 @@
+package com.firebase.uidemo.util;
+
+import android.arch.lifecycle.LifecycleRegistry;
+import android.arch.lifecycle.LifecycleRegistryOwner;
+import android.support.v7.app.AppCompatActivity;
+
+// TODO remove once arch components are merged into support lib
+@SuppressWarnings("Registered")
+public class LifecycleActivity extends AppCompatActivity implements LifecycleRegistryOwner {
+ private final LifecycleRegistry mRegistry = new LifecycleRegistry(this);
+
+ @Override
+ public LifecycleRegistry getLifecycle() {
+ return mRegistry;
+ }
+}
diff --git a/app/src/main/res/layout/activity_chat.xml b/app/src/main/res/layout/activity_chat.xml
index 7c0171e08..fc6a78ae4 100644
--- a/app/src/main/res/layout/activity_chat.xml
+++ b/app/src/main/res/layout/activity_chat.xml
@@ -4,7 +4,7 @@
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
- tools:context=".database.ChatActivity">
+ tools:context=".database.realtime.RealtimeDbChatActivity">