スポンサーリンク
前回のSwiftで作ったチャットページのAndroid版。
public class MessengerActivity extends AppCompatActivity {
private Activity activity = this;
private ChatView mChatView;
private FirebaseFirestore db;
private String collectionName;
private String myId;
private Bitmap myIcon;
private String myName;
private User me;
private String inputText;
private int chatCnt = 50;
private final int REQUEST_CODE = 777;
private Set blockUser = new HashSet();
private Toolbar toolbar;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_messenger);
// チャットネーム初期処理
this.initChatName();
// ブロックユーザー情報読み込み
this.blockUser = PrefUtility.readBlockUserNames(getApplicationContext());
// Firebase初期設定
this.setupFirebase();
// ユーザー情報初期処理
this.initChatSetting();
// チャットページ作成
this.initView();
// ツールバー設定
this.initToolbar();
}
/**
* チャットネームを確認し未登録なら登録画面へ
*/
private void initChatName() {
// チャットネーム取得
this.myName= PrefUtility.getPrefChatName(this);
// 未登録なら登録画面へ
if(Utility.isNull(this.myName)){
startActivityForResult(new Intent(activity, ChatNameSetting.class), REQUEST_CODE);
}
}
private void setupFirebase() {
this.db = FirebaseFirestore.getInstance();
this.collectionName = PrefUtility.getLangSetting(getApplicationContext()).equals("ja") ?
getString(R.string.collection_name) : getString(R.string.collection_name_en);
// DBが変更されるとリスト更新
this.db.collection(this.collectionName).orderBy("timestamp", Query.Direction.DESCENDING).limit(this.chatCnt)
.addSnapshotListener(new EventListener<QuerySnapshot>() {
@Override
public void onEvent(QuerySnapshot snapshot, FirebaseFirestoreException e) {
if (e != null) {
Log.w("chat", "Listen failed.", e);
return;
}
for (DocumentChange dc : snapshot.getDocumentChanges()) {
// ブロックユーザーチェック
String name = dc.getDocument().getString("name");
if(blockUser.contains(name)){
continue;
}
switch (dc.getType()) {
case ADDED:
User u = new User(UUID.randomUUID().toString(), name, null);
if(name.equals(myName)){
// 自分のチャット
Message m = setUpMineMsg(u, dc.getDocument());
mChatView.receive(m);
} else {
// 他人のチャット
Message m = setUpYourMsg(u, dc.getDocument());
mChatView.receive(m);
}
break;
case MODIFIED:
Log.d("chat", "Modified city: " + dc.getDocument().getData());
break;
case REMOVED:
Log.d("chat", "Removed city: " + dc.getDocument().getData());
break;
}
}
}
});
}
private void initChatSetting() {
this.myId = Utility.getUUID(this);
this.myIcon = null;
this.me = new User(myId, myName, myIcon);
}
private void initView() {
mChatView = findViewById(R.id.chat_view);
// Optionボタン非表示
mChatView.findViewById(R.id.optionButton).setVisibility(View.GONE);
//Set UI parameters if you need
mChatView.setRightBubbleColor(ContextCompat.getColor(this, R.color.bubble_color));
mChatView.setLeftBubbleColor(ContextCompat.getColor(this, R.color.bubble_color));
mChatView.setBackgroundColor(ContextCompat.getColor(this, R.color.white));
mChatView.setSendButtonColor(ContextCompat.getColor(this, R.color.bubble_color));
mChatView.setSendIcon(R.drawable.ic_action_send);
mChatView.setRightMessageTextColor(Color.WHITE);
mChatView.setLeftMessageTextColor(Color.WHITE);
mChatView.setUsernameTextColor(Color.BLACK);
mChatView.setSendTimeTextColor(Color.BLACK);
mChatView.setDateSeparatorColor(Color.BLACK);
mChatView.setOptionButtonColor(ContextCompat.getColor(this, R.color.bubble_color));
mChatView.setInputTextHint("new message...");
mChatView.setMessageMarginTop(5);
mChatView.setMessageMarginBottom(5);
mChatView.setMessageFontSize(40);
mChatView.setUsernameFontSize(38);
mChatView.setTimeLabelFontSize(35);
mChatView.setDateSeparatorFontSize(35);
//Click Send Button
mChatView.setOnClickSendButtonListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// 入力メッセージを保持
inputText = mChatView.getInputText();
if(inputText.length() != 0){
//Reset edit text
mChatView.setInputText("");
// Firestoreへ保存
saveData();
}
}
});
}
private void saveData() {
// Create a new user with a first and last name
Map<String, Object> user = new HashMap<>();
user.put("name", this.myName);
user.put("text", this.inputText);
user.put("timestamp", new Date());
// Add a new document with a generated ID
this.db.collection(collectionName)
.add(user)
.addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
@Override
public void onSuccess(DocumentReference documentReference) {
Log.d("chat","DocumentSnapshot added with ID: " + documentReference.getId());
}
})
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
Log.w("chat", "Error adding document", e);
}
});
}
private Message setUpMineMsg(User u, QueryDocumentSnapshot q) {
Message message = new Message.Builder()
.setUser(u)
.setRight(true)
.setText(q.getString("text"))
.setSendTime(this.getCalendar(q.getDate("timestamp")))
.hideIcon(true)
.build();
return message;
}
private Message setUpYourMsg(User u, QueryDocumentSnapshot q) {
Message message = new Message.Builder()
.setUser(u)
.setRight(false)
.setText(q.getString("text"))
.setSendTime(this.getCalendar(q.getDate("timestamp")))
.hideIcon(true)
.build();
return message;
}
private Calendar getCalendar(Date d) {
Calendar cal = Calendar.getInstance();
cal.setTime(d);
return cal;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(!Utility.isNull(data)){
Bundle bundle = data.getExtras();
switch (requestCode) {
case (REQUEST_CODE):
if (resultCode == RESULT_OK) {
// 起動先Activityからチャットネームを取得
this.myName = bundle.getString("key.ChatName");
}
break;
default:
break;
}
} else {
// 未登録の場合、戻る
finish();
}
}
@SuppressLint("ResourceAsColor")
private void initToolbar() {
toolbar = findViewById(R.id.toolBar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowTitleEnabled(false);
toolbar.setTitle(getString(R.string.tab_name_chat));
toolbar.setTitleTextColor(R.color.black);
}
}
ライブラリ探しに時間が掛かったが、ChatMessageViewを使ってみた。
最新バージョンはなぜかビルド通らないので、v1.11.0を使用。
実装は前回のSwiftチャットページよりあっさりできた。
参考サイト
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