我正在尝试在 android 中开发一个聊天应用程序，但消息被洗牌和重复

时间：2021-01-01 17:58:16

标签： android firebase firebase-realtime-database

这是群聊应用程序，当用户将消息分组时，所有其他消息都会被重复和无序排列。有时消息发送者和消息内容以及所有其他参数不匹配。 这是聊天活动，其中显示消息：

Mono<Void> validateCost = validateCost(buyRequest);
    Mono<Void> validateBalance = validateBalance(buyRequest);

    Mono<IssuePerkResponse> issuePerkResponseMono = Mono.when(validateCost, validateBalance)
            .then(issuePerk(buyRequest));

    Mono<IssueAndPayResult> payResultMono = issuePerkResponseMono
            .flatMap(issuePerkResponse -> paymentService.doPayment(buyRequest)
                    .map(paymentDetails -> new IssueAndPayResult(issuePerkResponse.getPerkIssueId(),
                            paymentDetails)));

    return payResultMono
            .doOnError(th -> {
                issuePerkResponseMono.flatMap(issuePerkResponse -> revertPerkIssue(issuePerkResponse))
                        .subscribe();
            })
            .flatMap(issueAndPayResult -> saveOrder(issueAndPayResult, buyRequest))
            .doOnError(th -> {
                issuePerkResponseMono.flatMap(issuePerkResponse -> revertPerkIssue(issuePerkResponse))
                        .subscribe();

                payResultMono.flatMap(issueAndPayResult -> revertPayment(issueAndPayResult))
                        .subscribe();
            });

这是消息适配器

public class GroupChatActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_group_chat2);

        SendMessageButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String message=userMessageInput.getText().toString();
                SaveMessageInfoToDatabase("text", message);
            }
        });
    }

    @Override
    protected void onStart() {
        super.onStart();

        messagesList.clear();
        messageAdapter.notifyDataSetChanged();

        groupChatRefForCurrentGroup.addChildEventListener(new ChildEventListener() {
            @Override
            public void onChildAdded(DataSnapshot dataSnapshot, String s) {
                if (dataSnapshot.exists()) {

                    Message messages=dataSnapshot.getValue(Message.class);
                    messagesList.add(messages);
                    messageAdapter.notifyDataSetChanged();
                    userMessagesList.smoothScrollToPosition(userMessagesList.getAdapter().getItemCount());
                }
            }
            @Override
            public void onChildChanged(DataSnapshot dataSnapshot, String s) {
            }
            @Override
            public void onChildRemoved(DataSnapshot dataSnapshot) {
            }
            @Override
            public void onChildMoved(DataSnapshot dataSnapshot, String s) {
            }
            @Override
            public void onCancelled(DatabaseError databaseError) {
            }
        });
    }

    private void SaveMessageInfoToDatabase(String messageType, String message) {

        HashMap<String, Object> groupMessageKey=new HashMap<>();

        groupChatRefForCurrentGroup.updateChildren(groupMessageKey);
        String messagekEY=groupChatRefForCurrentGroup.push().getKey();

        Message message1=new Message(currentUserID, message,
                messageType, currentGroupId, messagekEY, currentTime, currentDate);

        groupChatRefForCurrentGroup.child(messagekEY).setValue(message1);

    }}

这是自定义消息布局

public class MessageAdapter extends RecyclerView.Adapter<MessageAdapter.MessageViewHolder> {

    @Override
    public void onBindViewHolder(@NonNull final MessageViewHolder messageViewHolder, final int position) {

        message=userMessagesList.get(position);
        if (!senderUserId.equals(currentUserId)) {
            messageViewHolder.receiverProfileImage.setVisibility(View.VISIBLE);
        }
        messageViewHolder.senderMessageText.setTextIsSelectable(true);
        messageViewHolder.receiverMessageText.setTextIsSelectable(true);

        if (fromMessageType.equals("text")) {

            if (senderUserId.equals(currentUserId)) {
                messageViewHolder.senderlayout.setVisibility(View.VISIBLE);
                messageViewHolder.senderDate.setText(message.getTime() + " - " + message.getDate());
                messageViewHolder.senderMessageText.setText(message.getMessage());
            } else {
                messageViewHolder.receiverlayout.setVisibility(View.VISIBLE);
                messageViewHolder.receiverDate.setText(message.getTime() + " - " + message.getDate());
                messageViewHolder.receiverMessageText.setText(message.getMessage());
            }

        } else if (fromMessageType.equals("image")) {
            if (senderUserId.equals(currentUserId)) {

                messageViewHolder.messageSenderPicture.setVisibility(View.VISIBLE);
                Picasso.get()
                        .load(String.valueOf(message.getMessage()))
                        .into(messageViewHolder.messageSenderPicture);
            } else {
                messageViewHolder.messageReceiverPicture.setVisibility(View.VISIBLE);
                messageViewHolder.download_image_receiver.setVisibility(View.VISIBLE);
             
            }
        } else if (fromMessageType.equals("pdf")) {

            if (senderUserId.equals(currentUserId)) {
                messageViewHolder.senderLayoutPdf.setVisibility(View.VISIBLE);
            } else {
                messageViewHolder.receiverLayoutPdf.setVisibility(View.VISIBLE);
            }
        } else if (fromMessageType.equals("topic")) {
            messageViewHolder.group_topic_layout.setVisibility(View.VISIBLE);
            messageViewHolder.topic_text.setText(message.getMessage());
            messageViewHolder.topic_date_time.setText(message.getTime() + " - " + message.getDate());
          
        }}}

这是数据库节点设计

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="5dp"
    android:focusableInTouchMode="true"
    android:orientation="vertical"
    >

    <de.hdodenhof.circleimageview.CircleImageView
        android:id="@+id/message_profile_image"
        android:layout_width="36dp"
        android:layout_height="36dp"
        android:layout_marginTop="10dp"
        android:src="@drawable/profile_image"
        android:visibility="gone" />

    <LinearLayout
        android:id="@+id/receiver_message_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="3dp"
        android:layout_toEndOf="@+id/message_profile_image"
        android:background="@drawable/receiver_messages_layout"
        android:gravity="bottom|left"
        android:layout_gravity="left"
        android:orientation="vertical"
        android:paddingStart="@dimen/margine_sub"
        android:paddingTop="10dp"
        android:paddingEnd="@dimen/margine_sub"
        android:paddingBottom="10dp"
        android:visibility="gone">

        <TextView
            android:id="@+id/receiver_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:fontFamily="@font/lato"
            android:text=""
            android:textColor="#0889EC"
            android:textSize="@dimen/text_inputs" />

        <TextView
            android:id="@+id/receiver_message_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:fontFamily="@font/lato"
            android:longClickable="true"
            android:paddingBottom="2dp"
            android:text="receiver messages here"
            android:textColor="@color/recevierMessage"
            android:textIsSelectable="true"
            android:textSize="@dimen/title1" />

        <TextView
            android:id="@+id/receiver_message_date_time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:fontFamily="@font/lato"
            android:paddingTop="2dp"
            android:paddingBottom="4dp"
            android:text="1:30 PM-May 1, 2020"
            android:textColor="@color/recevierDateTime"
            android:textSize="8dp" />

    </LinearLayout>

    <ImageView
        android:id="@+id/message_sender_image_view"
        android:layout_width="170dp"
        android:layout_height="170dp"
        android:layout_alignParentEnd="true"
        android:layout_margin="5dp"
        android:scaleType="centerCrop"
        android:visibility="gone" />

    <ImageView
        android:id="@+id/message_receiver_image_view"
        android:layout_width="170dp"
        android:layout_height="170dp"
        android:layout_margin="5dp"
        android:layout_toEndOf="@+id/message_profile_image"
        android:scaleType="centerCrop"
        android:visibility="gone" />

    <ImageView
        android:id="@+id/download_image_receiver"
        android:layout_width="@dimen/widget_size36"
        android:layout_height="@dimen/widget_size36"
        android:layout_margin="5dp"
        android:layout_toRightOf="@+id/message_receiver_image_view"
        android:src="@drawable/download"
        android:visibility="gone" />

    <LinearLayout
        android:id="@+id/sender_message_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:background="@drawable/sender_messages_layout"
        android:gravity="bottom|right"
        android:layout_gravity="right"
        android:orientation="vertical"
        android:paddingStart="@dimen/margine_sub"
        android:paddingTop="10dp"
        android:paddingEnd="@dimen/margine_sub"
        android:paddingBottom="10dp"
        android:visibility="gone">

        <TextView
            android:id="@+id/sender_messsage_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:fontFamily="@font/lato"
            android:longClickable="true"
            android:text="sender messages"
            android:textColor="@color/recevierMessage"
            android:textIsSelectable="true"
            android:textSize="@dimen/title1" />

        <TextView
            android:id="@+id/sender_messsage_date_time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="2dp"
            android:fontFamily="@font/lato"
            android:text="1:30 PM-May 1, 2020"
            android:textColor="@color/grey"
            android:textSize="8sp" />

        <TextView
            android:id="@+id/isSeen"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="end"
            android:text="seen"
            android:textSize="8sp" />

    </LinearLayout>

    <LinearLayout
        android:id="@+id/layout_recevier_pdf"
        android:layout_width="170dp"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="true"
        android:background="@drawable/bg_rounded_grey_border"
        android:orientation="horizontal"
        android:padding="5dp"
        android:visibility="gone">

        <ImageView
            android:id="@+id/message_receiver_pdf_view"
            android:layout_width="@dimen/widget_size36"
            android:layout_height="@dimen/widget_size36"
            android:layout_gravity="start"
            android:scaleType="centerCrop"
            android:src="@drawable/documents" />

        <ImageView
            android:id="@+id/download_pdf"
            android:layout_width="@dimen/widget_size36"
            android:layout_height="@dimen/widget_size36"
            android:src="@drawable/download" />

    </LinearLayout>

    <LinearLayout
        android:id="@+id/layout_sender_pdf"
        android:layout_width="170dp"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:background="@drawable/bg_rounded_grey_border"
        android:orientation="horizontal"
        android:padding="5dp"
        android:visibility="gone">

        <ImageView
            android:id="@+id/message_sender_pdf_view"
            android:layout_width="@dimen/widget_size36"
            android:layout_height="@dimen/widget_size36"
            android:layout_gravity="start"
            android:scaleType="centerCrop"
            android:src="@drawable/documents" />

        <!--  <ImageView
        android:id="@+id/download_pdf"
        android:layout_width="@dimen/widget_size36"
        android:layout_height="@dimen/widget_size36"
        android:src="@drawable/download" />
        -->
    </LinearLayout>

    <LinearLayout
        android:id="@+id/group_topic_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="3dp"
        android:layout_marginEnd="@dimen/widget_size36"
        android:layout_toEndOf="@+id/message_profile_image"
        android:background="@drawable/receiver_messages_layout"
        android:elevation="16dp"
        android:gravity="bottom"
        android:orientation="vertical"
        android:paddingStart="@dimen/margine_sub"
        android:paddingTop="10dp"
        android:paddingEnd="@dimen/margine_sub"
        android:paddingBottom="10dp"
        android:visibility="gone">

        <TextView
            android:id="@+id/publisher_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:fontFamily="@font/lato"
            android:text="publisher"
            android:textColor="#0889EC"
            android:textSize="@dimen/text_inputs" />

        <TextView
            android:id="@+id/topic_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ellipsize="end"
            android:fontFamily="@font/lato"
            android:inputType="textMultiLine"
            android:longClickable="true"
            android:maxLines="4"
            android:editable="false"
            android:paddingBottom="2dp"
            android:text="Detailed Topic here"
            android:textIsSelectable="true"
            android:textSize="@dimen/title1" />

        <TextView
            android:id="@+id/topic_date_time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:fontFamily="@font/lato"
            android:paddingTop="2dp"
            android:paddingBottom="4dp"
            android:text="1:30 PM-May 1, 2020"
            android:textColor="@color/recevierDateTime"
            android:textSize="8dp" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:paddingTop="3dp">

            <ImageView
                android:id="@+id/like"
                android:layout_width="@dimen/widget_size"
                android:layout_height="match_parent"
                android:layout_gravity="center"
                android:paddingEnd="5dp"
                android:src="@drawable/like_border" />

            <TextView
                android:id="@+id/no_of_likes"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_alignTop="@+id/reply"
                android:layout_gravity="center"
                android:layout_marginEnd="10dp"
                android:layout_toEndOf="@+id/reply"
                android:gravity="center"
                android:text="0"
                android:textSize="@dimen/title4" />

            <TextView
                android:id="@+id/reply"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_gravity="center"
                android:text="Reply"
                android:textColor="@color/colorPrimary"
                android:textSize="@dimen/title4" />

            <TextView
                android:id="@+id/no_of_replies"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignTop="@+id/reply"
                android:layout_marginStart="4dp"
                android:layout_toEndOf="@+id/reply"
                android:text="0"
                android:textSize="@dimen/title4" />
        </LinearLayout>
    </LinearLayout>
</LinearLayout>

0 个答案:

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