UI界面的编写

android-app/app/src/main/AndroidManifest.xml

@@ -80,6 +80,10 @@
             android:name="com.example.livestreaming.MessagesActivity"
             android:exported="false" />
 
+        <activity
+            android:name="com.example.livestreaming.ConversationActivity"
+            android:exported="false" />
+
         <activity
             android:name="com.example.livestreaming.PlayerActivity"
             android:exported="false" />

android-app/app/src/main/java/com/example/livestreaming/ConversationActivity.java

@@ -0,0 +1,97 @@
+package com.example.livestreaming;
+
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.KeyEvent;
+import android.view.View;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+
+import com.example.livestreaming.databinding.ActivityConversationBinding;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ConversationActivity extends AppCompatActivity {
+
+    private static final String EXTRA_CONVERSATION_ID = "extra_conversation_id";
+    private static final String EXTRA_CONVERSATION_TITLE = "extra_conversation_title";
+
+    private ActivityConversationBinding binding;
+
+    private ConversationMessagesAdapter adapter;
+    private final List<ChatMessage> messages = new ArrayList<>();
+
+    public static void start(Context context, String conversationId, String title) {
+        Intent intent = new Intent(context, ConversationActivity.class);
+        intent.putExtra(EXTRA_CONVERSATION_ID, conversationId);
+        intent.putExtra(EXTRA_CONVERSATION_TITLE, title);
+        context.startActivity(intent);
+    }
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        binding = ActivityConversationBinding.inflate(getLayoutInflater());
+        setContentView(binding.getRoot());
+
+        String title = getIntent() != null ? getIntent().getStringExtra(EXTRA_CONVERSATION_TITLE) : null;
+        binding.titleText.setText(title != null ? title : "会话");
+
+        binding.backButton.setOnClickListener(v -> finish());
+
+        setupMessages();
+        setupInput();
+    }
+
+    private void setupMessages() {
+        adapter = new ConversationMessagesAdapter();
+
+        LinearLayoutManager layoutManager = new LinearLayoutManager(this);
+        layoutManager.setStackFromEnd(false);
+        binding.messagesRecyclerView.setLayoutManager(layoutManager);
+        binding.messagesRecyclerView.setAdapter(adapter);
+
+        messages.clear();
+        String title = binding.titleText.getText() != null ? binding.titleText.getText().toString() : "";
+        messages.add(new ChatMessage(title, "你好～"));
+        messages.add(new ChatMessage("我", "在的，有什么需要帮忙？"));
+        adapter.submitList(new ArrayList<>(messages));
+        scrollToBottom();
+    }
+
+    private void setupInput() {
+        binding.sendButton.setOnClickListener(v -> sendMessage());
+
+        binding.messageInput.setOnEditorActionListener((v, actionId, event) -> {
+            if (event != null && event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
+                sendMessage();
+                return true;
+            }
+            return false;
+        });
+
+        binding.messageInput.setOnFocusChangeListener((v, hasFocus) -> {
+            if (hasFocus) scrollToBottom();
+        });
+    }
+
+    private void sendMessage() {
+        String text = binding.messageInput.getText() != null ? binding.messageInput.getText().toString().trim() : "";
+        if (TextUtils.isEmpty(text)) return;
+
+        messages.add(new ChatMessage("我", text));
+        adapter.submitList(new ArrayList<>(messages));
+        binding.messageInput.setText("");
+        scrollToBottom();
+    }
+
+    private void scrollToBottom() {
+        if (messages.isEmpty()) return;
+        binding.messagesRecyclerView.post(() -> binding.messagesRecyclerView.scrollToPosition(messages.size() - 1));
+    }
+}

android-app/app/src/main/java/com/example/livestreaming/ConversationMessagesAdapter.java

@@ -0,0 +1,106 @@
+package com.example.livestreaming;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.DiffUtil;
+import androidx.recyclerview.widget.ListAdapter;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+
+public class ConversationMessagesAdapter extends ListAdapter<ChatMessage, RecyclerView.ViewHolder> {
+
+    private static final int TYPE_INCOMING = 1;
+    private static final int TYPE_OUTGOING = 2;
+
+    private static final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm", Locale.getDefault());
+
+    public ConversationMessagesAdapter() {
+        super(DIFF);
+    }
+
+    @Override
+    public int getItemViewType(int position) {
+        ChatMessage msg = getItem(position);
+        if (msg == null) return TYPE_INCOMING;
+        String u = msg.getUsername();
+        return "我".equals(u) ? TYPE_OUTGOING : TYPE_INCOMING;
+    }
+
+    @NonNull
+    @Override
+    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        LayoutInflater inflater = LayoutInflater.from(parent.getContext());
+        if (viewType == TYPE_OUTGOING) {
+            View v = inflater.inflate(R.layout.item_conversation_message_outgoing, parent, false);
+            return new OutgoingVH(v);
+        }
+        View v = inflater.inflate(R.layout.item_conversation_message_incoming, parent, false);
+        return new IncomingVH(v);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
+        ChatMessage msg = getItem(position);
+        if (holder instanceof IncomingVH) {
+            ((IncomingVH) holder).bind(msg);
+        } else if (holder instanceof OutgoingVH) {
+            ((OutgoingVH) holder).bind(msg);
+        }
+    }
+
+    static class IncomingVH extends RecyclerView.ViewHolder {
+        private final TextView nameText;
+        private final TextView msgText;
+        private final TextView timeText;
+
+        IncomingVH(@NonNull View itemView) {
+            super(itemView);
+            nameText = itemView.findViewById(R.id.nameText);
+            msgText = itemView.findViewById(R.id.messageText);
+            timeText = itemView.findViewById(R.id.timeText);
+        }
+
+        void bind(ChatMessage message) {
+            if (message == null) return;
+            nameText.setText(message.getUsername() != null ? message.getUsername() : "");
+            msgText.setText(message.getMessage() != null ? message.getMessage() : "");
+            timeText.setText(TIME_FORMAT.format(new Date(message.getTimestamp())));
+        }
+    }
+
+    static class OutgoingVH extends RecyclerView.ViewHolder {
+        private final TextView msgText;
+        private final TextView timeText;
+
+        OutgoingVH(@NonNull View itemView) {
+            super(itemView);
+            msgText = itemView.findViewById(R.id.messageText);
+            timeText = itemView.findViewById(R.id.timeText);
+        }
+
+        void bind(ChatMessage message) {
+            if (message == null) return;
+            msgText.setText(message.getMessage() != null ? message.getMessage() : "");
+            timeText.setText(TIME_FORMAT.format(new Date(message.getTimestamp())));
+        }
+    }
+
+    private static final DiffUtil.ItemCallback<ChatMessage> DIFF = new DiffUtil.ItemCallback<ChatMessage>() {
+        @Override
+        public boolean areItemsTheSame(@NonNull ChatMessage oldItem, @NonNull ChatMessage newItem) {
+            return oldItem.getTimestamp() == newItem.getTimestamp();
+        }
+
+        @Override
+        public boolean areContentsTheSame(@NonNull ChatMessage oldItem, @NonNull ChatMessage newItem) {
+            return oldItem.getTimestamp() == newItem.getTimestamp();
+        }
+    };
+}

android-app/app/src/main/java/com/example/livestreaming/EditProfileActivity.java

@@ -20,6 +20,9 @@ import com.example.livestreaming.databinding.ActivityEditProfileBinding;
 import com.google.android.material.bottomsheet.BottomSheetDialog;
 
 import java.io.File;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
 
 public class EditProfileActivity extends AppCompatActivity {
 
@@ -29,6 +32,7 @@ public class EditProfileActivity extends AppCompatActivity {
     private static final String KEY_NAME = "profile_name";
     private static final String KEY_BIO = "profile_bio";
     private static final String KEY_AVATAR_URI = "profile_avatar_uri";
+    private static final String KEY_AVATAR_RES = "profile_avatar_res";
     private static final String KEY_BIRTHDAY = "profile_birthday";
     private static final String KEY_GENDER = "profile_gender";
     private static final String KEY_LOCATION = "profile_location";
@@ -107,7 +111,14 @@ public class EditProfileActivity extends AppCompatActivity {
             }
 
             if (selectedAvatarUri != null) {
-                getSharedPreferences(PREFS_NAME, MODE_PRIVATE).edit().putString(KEY_AVATAR_URI, selectedAvatarUri.toString()).apply();
+                Uri persisted = persistAvatarToInternalStorage(selectedAvatarUri);
+                if (persisted != null) {
+                    getSharedPreferences(PREFS_NAME, MODE_PRIVATE)
+                            .edit()
+                            .putString(KEY_AVATAR_URI, persisted.toString())
+                            .remove(KEY_AVATAR_RES)
+                            .apply();
+                }
             }
 
             if (TextUtils.isEmpty(birthday)) {
@@ -132,6 +143,42 @@ public class EditProfileActivity extends AppCompatActivity {
         });
     }
 
+    private Uri persistAvatarToInternalStorage(Uri sourceUri) {
+        if (sourceUri == null) return null;
+        InputStream in = null;
+        OutputStream out = null;
+        try {
+            File dir = new File(getFilesDir(), "avatars");
+            if (!dir.exists()) dir.mkdirs();
+            File file = new File(dir, "avatar.jpg");
+
+            in = getContentResolver().openInputStream(sourceUri);
+            if (in == null) return null;
+            out = new FileOutputStream(file, false);
+
+            byte[] buf = new byte[8 * 1024];
+            int n;
+            while ((n = in.read(buf)) > 0) {
+                out.write(buf, 0, n);
+            }
+            out.flush();
+
+            return Uri.fromFile(file);
+        } catch (Exception e) {
+            Toast.makeText(this, "头像保存失败", Toast.LENGTH_SHORT).show();
+            return null;
+        } finally {
+            try {
+                if (in != null) in.close();
+            } catch (Exception ignored) {
+            }
+            try {
+                if (out != null) out.close();
+            } catch (Exception ignored) {
+            }
+        }
+    }
+
     private void loadFromPrefs() {
         String name = getSharedPreferences(PREFS_NAME, MODE_PRIVATE).getString(KEY_NAME, "");
         String bio = getSharedPreferences(PREFS_NAME, MODE_PRIVATE).getString(KEY_BIO, "");

android-app/app/src/main/java/com/example/livestreaming/FishPondActivity.java

@@ -14,6 +14,7 @@ import androidx.appcompat.app.AppCompatActivity;
 import androidx.constraintlayout.widget.ConstraintSet;
 
 import com.example.livestreaming.databinding.ActivityFishPondBinding;
+import com.bumptech.glide.Glide;
 import com.google.android.material.bottomnavigation.BottomNavigationView;
 
 public class FishPondActivity extends AppCompatActivity {
@@ -265,7 +266,10 @@ public class FishPondActivity extends AppCompatActivity {
 
         String bio = "真诚交友 · " + c + " · 在线";
 
-        avatarView.setImageResource(a);
+        Glide.with(avatarView)
+                .load(a)
+                .circleCrop()
+                .into(avatarView);
         nameView.setText(n);
         locationView.setText(c);
 

android-app/app/src/main/java/com/example/livestreaming/MainActivity.java

@@ -202,14 +202,22 @@ public class MainActivity extends AppCompatActivity {
             String avatarUri = getSharedPreferences("profile_prefs", MODE_PRIVATE)
                     .getString("profile_avatar_uri", null);
             if (!TextUtils.isEmpty(avatarUri)) {
-                Glide.with(this).load(avatarUri).circleCrop().into(binding.avatarButton);
+                Glide.with(this)
+                        .load(Uri.parse(avatarUri))
+                        .circleCrop()
+                        .error(R.drawable.ic_account_circle_24)
+                        .into(binding.avatarButton);
                 return;
             }
 
             int avatarRes = getSharedPreferences("profile_prefs", MODE_PRIVATE)
                     .getInt("profile_avatar_res", 0);
             if (avatarRes != 0) {
-                binding.avatarButton.setImageResource(avatarRes);
+                Glide.with(this)
+                        .load(avatarRes)
+                        .circleCrop()
+                        .error(R.drawable.ic_account_circle_24)
+                        .into(binding.avatarButton);
             } else {
                 binding.avatarButton.setImageResource(R.drawable.ic_account_circle_24);
             }

android-app/app/src/main/java/com/example/livestreaming/MessagesActivity.java

@@ -2,11 +2,21 @@ package com.example.livestreaming;
 
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.RectF;
 import android.os.Bundle;
+import android.util.TypedValue;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewConfiguration;
 import android.widget.Toast;
 
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.ItemTouchHelper;
 import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 
 import com.example.livestreaming.databinding.ActivityMessagesBinding;
 import com.google.android.material.bottomnavigation.BottomNavigationView;
@@ -18,6 +28,22 @@ public class MessagesActivity extends AppCompatActivity {
 
     private ActivityMessagesBinding binding;
 
+    private final List<ConversationItem> conversations = new ArrayList<>();
+    private ConversationsAdapter conversationsAdapter;
+
+    private int swipedPosition = RecyclerView.NO_POSITION;
+    private RectF deleteButtonRect;
+    private final Paint deleteBackgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+    private final Paint deleteTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+
+    private int lastSwipePosition = RecyclerView.NO_POSITION;
+    private float lastSwipeDx;
+
+    private float touchDownX;
+    private float touchDownY;
+    private boolean touchIsClick;
+    private int touchSlop;
+
     public static void start(Context context) {
         Intent intent = new Intent(context, MessagesActivity.class);
         context.startActivity(intent);
@@ -63,13 +89,203 @@ public class MessagesActivity extends AppCompatActivity {
     }
 
     private void setupConversationList() {
-        ConversationsAdapter adapter = new ConversationsAdapter(item -> {
+        deleteBackgroundPaint.setColor(0xFFE53935);
+        deleteTextPaint.setColor(Color.WHITE);
+        deleteTextPaint.setTextAlign(Paint.Align.CENTER);
+        deleteTextPaint.setTextSize(sp(14));
+
+        conversationsAdapter = new ConversationsAdapter(item -> {
             if (item == null) return;
-            Toast.makeText(this, "打开会话：" + item.getTitle(), Toast.LENGTH_SHORT).show();
+            ConversationActivity.start(this, item.getId(), item.getTitle());
         });
         binding.conversationsRecyclerView.setLayoutManager(new LinearLayoutManager(this));
-        binding.conversationsRecyclerView.setAdapter(adapter);
+        binding.conversationsRecyclerView.setAdapter(conversationsAdapter);
-        adapter.submitList(buildDemoConversations());
+
+        conversations.clear();
+        conversations.addAll(buildDemoConversations());
+        conversationsAdapter.submitList(new ArrayList<>(conversations));
+
+        attachSwipeToDelete(binding.conversationsRecyclerView);
+    }
+
+    private void attachSwipeToDelete(RecyclerView recyclerView) {
+        final float actionWidth = dp(96);
+        touchSlop = ViewConfiguration.get(this).getScaledTouchSlop();
+        ItemTouchHelper.SimpleCallback callback = new ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT) {
+            @Override
+            public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
+                return false;
+            }
+
+            @Override
+            public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
+                // 不允许滑动直接删除（保持为“露出删除按钮”的交互）
+                if (conversationsAdapter != null) {
+                    conversationsAdapter.notifyItemChanged(viewHolder.getBindingAdapterPosition());
+                }
+            }
+
+            @Override
+            public void clearView(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
+                super.clearView(recyclerView, viewHolder);
+
+                int pos = viewHolder.getBindingAdapterPosition();
+                if (pos == RecyclerView.NO_POSITION) return;
+
+                float dx = (pos == lastSwipePosition) ? lastSwipeDx : viewHolder.itemView.getTranslationX();
+                boolean shouldOpen = dx <= -actionWidth * 0.2f;
+
+                if (shouldOpen) {
+                    if (swipedPosition != RecyclerView.NO_POSITION && swipedPosition != pos && conversationsAdapter != null) {
+                        int old = swipedPosition;
+                        swipedPosition = RecyclerView.NO_POSITION;
+                        deleteButtonRect = null;
+                        conversationsAdapter.notifyItemChanged(old);
+                    }
+                    swipedPosition = pos;
+                    viewHolder.itemView.setTranslationX(-actionWidth);
+                } else {
+                    if (swipedPosition == pos) {
+                        swipedPosition = RecyclerView.NO_POSITION;
+                        deleteButtonRect = null;
+                    }
+                    viewHolder.itemView.setTranslationX(0f);
+                }
+
+                if (pos == lastSwipePosition) {
+                    lastSwipePosition = RecyclerView.NO_POSITION;
+                    lastSwipeDx = 0f;
+                }
+            }
+
+            @Override
+            public float getSwipeThreshold(RecyclerView.ViewHolder viewHolder) {
+                // 返回 1f 防止触发“滑动就删除”的默认行为
+                return 1f;
+            }
+
+            @Override
+            public float getSwipeEscapeVelocity(float defaultValue) {
+                return defaultValue * 3f;
+            }
+
+            @Override
+            public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder,
+                                    float dX, float dY, int actionState, boolean isCurrentlyActive) {
+                if (actionState != ItemTouchHelper.ACTION_STATE_SWIPE) {
+                    super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
+                    return;
+                }
+
+                int position = viewHolder.getBindingAdapterPosition();
+                if (position == RecyclerView.NO_POSITION) {
+                    super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
+                    return;
+                }
+
+                float clampedDx;
+                if (position == swipedPosition) {
+                    if (!isCurrentlyActive) {
+                        clampedDx = -actionWidth;
+                    } else {
+                        if (dX > 0) {
+                            // 已展开时右滑：从 -actionWidth 平滑回到 0
+                            clampedDx = Math.min(0f, -actionWidth + dX);
+                        } else {
+                            // 正常左滑打开
+                            clampedDx = Math.min(0, Math.max(dX, -actionWidth));
+                        }
+                    }
+                } else {
+                    // 未展开的 item：只允许左滑露出
+                    clampedDx = Math.min(0, Math.max(dX, -actionWidth));
+                }
+
+                if (isCurrentlyActive) {
+                    lastSwipePosition = position;
+                    lastSwipeDx = clampedDx;
+                }
+
+                View itemView = viewHolder.itemView;
+                float left;
+                float top = itemView.getTop();
+                float bottom = itemView.getBottom();
+                float right = itemView.getRight();
+                left = right + clampedDx;
+
+                deleteButtonRect = new RectF(left, top, right, bottom);
+                c.drawRect(deleteButtonRect, deleteBackgroundPaint);
+
+                float centerX = deleteButtonRect.centerX();
+                float centerY = deleteButtonRect.centerY();
+                Paint.FontMetrics fm = deleteTextPaint.getFontMetrics();
+                float textY = centerY - (fm.ascent + fm.descent) / 2f;
+                c.drawText("删除", centerX, textY, deleteTextPaint);
+
+                super.onChildDraw(c, recyclerView, viewHolder, clampedDx, dY, actionState, isCurrentlyActive);
+            }
+        };
+
+        new ItemTouchHelper(callback).attachToRecyclerView(recyclerView);
+
+        recyclerView.setOnTouchListener((v, event) -> {
+            if (swipedPosition == RecyclerView.NO_POSITION || deleteButtonRect == null) return false;
+
+            int action = event.getActionMasked();
+            if (action == MotionEvent.ACTION_DOWN) {
+                touchDownX = event.getX();
+                touchDownY = event.getY();
+                touchIsClick = true;
+                return false;
+            }
+
+            if (action == MotionEvent.ACTION_MOVE) {
+                float dx = Math.abs(event.getX() - touchDownX);
+                float dy = Math.abs(event.getY() - touchDownY);
+                if (dx > touchSlop || dy > touchSlop) {
+                    touchIsClick = false;
+                }
+                return false;
+            }
+
+            if (action == MotionEvent.ACTION_UP) {
+                if (!touchIsClick) return false;
+
+                boolean hit = deleteButtonRect.contains(event.getX(), event.getY());
+                int pos = swipedPosition;
+                recoverSwipedItem();
+                if (hit) {
+                    deleteConversationAt(pos);
+                    return true;
+                }
+            }
+            return false;
+        });
+    }
+
+    private void recoverSwipedItem() {
+        int pos = swipedPosition;
+        swipedPosition = RecyclerView.NO_POSITION;
+        deleteButtonRect = null;
+        if (pos != RecyclerView.NO_POSITION && conversationsAdapter != null) {
+            conversationsAdapter.notifyItemChanged(pos);
+        }
+    }
+
+    private void deleteConversationAt(int position) {
+        if (position < 0 || position >= conversations.size()) return;
+        conversations.remove(position);
+        if (conversationsAdapter != null) {
+            conversationsAdapter.submitList(new ArrayList<>(conversations));
+        }
+    }
+
+    private float dp(float value) {
+        return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, value, getResources().getDisplayMetrics());
+    }
+
+    private float sp(float value) {
+        return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, value, getResources().getDisplayMetrics());
     }
 
     private List<ConversationItem> buildDemoConversations() {

android-app/app/src/main/java/com/example/livestreaming/ProfileActivity.java

@@ -5,6 +5,7 @@ import android.content.Intent;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.os.Bundle;
+import android.net.Uri;
 import android.text.TextUtils;
 import android.view.View;
 import android.widget.EditText;
@@ -94,11 +95,21 @@ public class ProfileActivity extends AppCompatActivity {
 
         String avatarUri = getSharedPreferences(PREFS_NAME, MODE_PRIVATE).getString(KEY_AVATAR_URI, null);
         if (!TextUtils.isEmpty(avatarUri)) {
-            Glide.with(this).load(avatarUri).circleCrop().into(binding.avatar);
+            Glide.with(this)
+                    .load(Uri.parse(avatarUri))
+                    .circleCrop()
+                    .error(R.drawable.ic_account_circle_24)
+                    .into(binding.avatar);
         } else {
             int avatarRes = getSharedPreferences(PREFS_NAME, MODE_PRIVATE).getInt(KEY_AVATAR_RES, 0);
             if (avatarRes != 0) {
-                binding.avatar.setImageResource(avatarRes);
+                Glide.with(this)
+                        .load(avatarRes)
+                        .circleCrop()
+                        .error(R.drawable.ic_account_circle_24)
+                        .into(binding.avatar);
+            } else {
+                binding.avatar.setImageResource(R.drawable.ic_account_circle_24);
             }
         }
 
@@ -157,7 +168,20 @@ public class ProfileActivity extends AppCompatActivity {
         binding.action3.setOnClickListener(v -> startActivity(new Intent(this, MyFriendsActivity.class)));
 
         binding.editProfile.setOnClickListener(v -> EditProfileActivity.start(this));
-        binding.shareHome.setOnClickListener(v -> TabPlaceholderActivity.start(this, "分享主页"));
+        binding.shareHome.setOnClickListener(v -> {
+            // TabPlaceholderActivity.start(this, "分享主页");
+            String idText = binding.idLine.getText() != null ? binding.idLine.getText().toString() : "";
+            String digits = !TextUtils.isEmpty(idText) ? idText.replaceAll("\\D+", "") : "";
+            if (TextUtils.isEmpty(digits)) digits = "24187196";
+
+            String url = "https://live.example.com/u/" + digits;
+
+            ClipboardManager cm = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
+            if (cm != null) {
+                cm.setPrimaryClip(ClipData.newPlainText("profile_url", url));
+                Toast.makeText(this, "主页链接已复制", Toast.LENGTH_SHORT).show();
+            }
+        });
         binding.addFriendBtn.setOnClickListener(v -> TabPlaceholderActivity.start(this, "加好友"));
     }
 

android-app/app/src/main/java/com/example/livestreaming/TabPlaceholderActivity.java

@@ -2,6 +2,7 @@ package com.example.livestreaming;
 
 import android.content.Context;
 import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.text.Editable;
 import android.text.TextUtils;
@@ -361,7 +362,11 @@ public class TabPlaceholderActivity extends AppCompatActivity {
             }
 
             if (!TextUtils.isEmpty(avatarUri)) {
-                Glide.with(this).load(avatarUri).circleCrop().into(binding.moreAvatar);
+                Glide.with(this)
+                        .load(Uri.parse(avatarUri))
+                        .circleCrop()
+                        .error(R.drawable.ic_account_circle_24)
+                        .into(binding.moreAvatar);
             } else if (avatarRes != 0) {
                 binding.moreAvatar.setImageResource(avatarRes);
             } else {

android-app/app/src/main/java/com/example/livestreaming/WishTreeActivity.java

@@ -1,138 +1 @@
-package com.example.livestreaming;
+package com.example.livestreaming;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;

import androidx.appcompat.app.AppCompatActivity;

import com.example.livestreaming.databinding.ActivityWishTreeBinding;
import com.google.android.material.bottomnavigation.BottomNavigationView;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

public class WishTreeActivity extends AppCompatActivity {

    private ActivityWishTreeBinding binding;

    private final Handler handler = new Handler(Looper.getMainLooper());
    private Runnable timerRunnable;

    public static void start(Context context) {
        Intent intent = new Intent(context, WishTreeActivity.class);
        context.startActivity(intent);
    }

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

    @Override
    protected void onStop() {
        super.onStop();
        stopBannerCountdown();
    }

    private void startBannerCountdown() {
        stopBannerCountdown();
        timerRunnable = new Runnable() {
            @Override
            public void run() {
                updateBannerTimer();
                handler.postDelayed(this, 1000);
            }
        };
        handler.post(timerRunnable);
    }

    private void stopBannerCountdown() {
        if (timerRunnable != null) {
            handler.removeCallbacks(timerRunnable);
            timerRunnable = null;
        }
    }

    private void updateBannerTimer() {
        if (binding == null) return;
        try {
            long now = System.currentTimeMillis();
            TimeZone tz = TimeZone.getDefault();
            Calendar c = Calendar.getInstance(tz);
            c.setTimeInMillis(now);
            c.set(Calendar.HOUR_OF_DAY, 0);
            c.set(Calendar.MINUTE, 0);
            c.set(Calendar.SECOND, 0);
            c.set(Calendar.MILLISECOND, 0);
            c.add(Calendar.DAY_OF_MONTH, 1);
            long nextMidnight = c.getTimeInMillis();
            long diff = Math.max(0, nextMidnight - now);

            long totalSeconds = diff / 1000;
            long hours = totalSeconds / 3600;
            long minutes = (totalSeconds % 3600) / 60;
            long seconds = totalSeconds % 60;

            SimpleDateFormat fmt = new SimpleDateFormat("HH:mm:ss", Locale.getDefault());
            fmt.setTimeZone(tz);
            String current = fmt.format(new Date(now));
            String remain = String.format(Locale.getDefault(), "%02d:%02d:%02d", hours, minutes, seconds);
            binding.bannerTimer.setText(current + " " + remain);
        } catch (Exception ignored) {
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        binding = ActivityWishTreeBinding.inflate(getLayoutInflater());
        setContentView(binding.getRoot());

        startBannerCountdown();

        BottomNavigationView bottomNavigation = binding.bottomNavInclude.bottomNavigation;
        bottomNavigation.setSelectedItemId(R.id.nav_wish_tree);
        bottomNavigation.setOnItemSelectedListener(item -> {
            int id = item.getItemId();
            if (id == R.id.nav_wish_tree) {
                return true;
            }
            if (id == R.id.nav_home) {
                startActivity(new Intent(this, MainActivity.class));
                finish();
                return true;
            }
            if (id == R.id.nav_friends) {
                startActivity(new Intent(this, FishPondActivity.class));
                finish();
                return true;
            }
            if (id == R.id.nav_messages) {
                MessagesActivity.start(this);
                finish();
                return true;
            }
            if (id == R.id.nav_profile) {
                ProfileActivity.start(this);
                finish();
                return true;
            }
            return true;
        });
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (binding != null) {
            binding.bottomNavInclude.bottomNavigation.setSelectedItemId(R.id.nav_wish_tree);
        }
    }
}
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Looper;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-import com.example.livestreaming.databinding.ActivityWishTreeBinding;
-import com.google.android.material.bottomnavigation.BottomNavigationView;
-
-import java.text.SimpleDateFormat;
-import java.util.Calendar;
-import java.util.Date;
-import java.util.Locale;
-import java.util.TimeZone;
-
-public class WishTreeActivity extends AppCompatActivity {
-
-    private ActivityWishTreeBinding binding;
-
-    private final Handler handler = new Handler(Looper.getMainLooper());
-    private Runnable timerRunnable;
-
-    public static void start(Context context) {
-        Intent intent = new Intent(context, WishTreeActivity.class);
-        context.startActivity(intent);
-    }
-
-    @Override
-    protected void onStart() {
-        super.onStart();
-        startBannerCountdown();
-    }
-
-    @Override
-    protected void onStop() {
-        super.onStop();
-        stopBannerCountdown();
-    }
-
-    private void startBannerCountdown() {
-        stopBannerCountdown();
-        timerRunnable = new Runnable() {
-            @Override
-            public void run() {
-                updateBannerTimer();
-                handler.postDelayed(this, 1000);
-            }
-        };
-        handler.post(timerRunnable);
-    }
-
-    private void stopBannerCountdown() {
-        if (timerRunnable != null) {
-            handler.removeCallbacks(timerRunnable);
-            timerRunnable = null;
-        }
-    }
-
-    private void updateBannerTimer() {
-        if (binding == null) return;
-        try {
-            long now = System.currentTimeMillis();
-            TimeZone tz = TimeZone.getDefault();
-            Calendar c = Calendar.getInstance(tz);
-            c.setTimeInMillis(now);
-            c.set(Calendar.HOUR_OF_DAY, 0);
-            c.set(Calendar.MINUTE, 0);
-            c.set(Calendar.SECOND, 0);
-            c.set(Calendar.MILLISECOND, 0);
-            c.add(Calendar.DAY_OF_MONTH, 1);
-            long nextMidnight = c.getTimeInMillis();
-            long diff = Math.max(0, nextMidnight - now);
-
-            long totalSeconds = diff / 1000;
-            long hours = totalSeconds / 3600;
-            long minutes = (totalSeconds % 3600) / 60;
-            long seconds = totalSeconds % 60;
-
-            SimpleDateFormat fmt = new SimpleDateFormat("HH:mm:ss", Locale.getDefault());
-            fmt.setTimeZone(tz);
-            String current = fmt.format(new Date(now));
-            String remain = String.format(Locale.getDefault(), "%02d:%02d:%02d", hours, minutes, seconds);
-            binding.bannerTimer.setText(current + " " + remain);
-        } catch (Exception ignored) {
-        }
-    }
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        binding = ActivityWishTreeBinding.inflate(getLayoutInflater());
-        setContentView(binding.getRoot());
-
-        startBannerCountdown();
-
-        BottomNavigationView bottomNavigation = binding.bottomNavInclude.bottomNavigation;
-        bottomNavigation.setSelectedItemId(R.id.nav_wish_tree);
-        bottomNavigation.setOnItemSelectedListener(item -> {
-            int id = item.getItemId();
-            if (id == R.id.nav_wish_tree) {
-                return true;
-            }
-            if (id == R.id.nav_home) {
-                startActivity(new Intent(this, MainActivity.class));
-                finish();
-                return true;
-            }
-            if (id == R.id.nav_friends) {
-                startActivity(new Intent(this, FishPondActivity.class));
-                finish();
-                return true;
-            }
-            if (id == R.id.nav_messages) {
-                MessagesActivity.start(this);
-                finish();
-                return true;
-            }
-            if (id == R.id.nav_profile) {
-                ProfileActivity.start(this);
-                finish();
-                return true;
-            }
-            return true;
-        });
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-        if (binding != null) {
-            binding.bottomNavInclude.bottomNavigation.setSelectedItemId(R.id.nav_wish_tree);
-        }
-    }
-}

android-app/app/src/main/res/drawable/bg_bubble_incoming.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
+    <solid android:color="#F1F3F5" />
+    <corners android:radius="16dp" />
+</shape>

android-app/app/src/main/res/drawable/bg_bubble_outgoing.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
+    <solid android:color="#4F7BFF" />
+    <corners android:radius="16dp" />
+</shape>

android-app/app/src/main/res/layout/activity_conversation.xml

@@ -0,0 +1,125 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@android:color/white">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/topBar"
+        android:layout_width="0dp"
+        android:layout_height="56dp"
+        android:background="@android:color/white"
+        android:paddingStart="8dp"
+        android:paddingEnd="16dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <ImageButton
+            android:id="@+id/backButton"
+            android:layout_width="40dp"
+            android:layout_height="40dp"
+            android:background="@android:color/transparent"
+            android:contentDescription="back"
+            android:padding="8dp"
+            android:src="@drawable/ic_arrow_back_24"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <ImageView
+            android:id="@+id/avatarView"
+            android:layout_width="36dp"
+            android:layout_height="36dp"
+            android:layout_marginStart="4dp"
+            android:background="@drawable/bg_avatar_circle"
+            android:padding="5dp"
+            android:src="@drawable/ic_account_circle_24"
+            app:layout_constraintBottom_toBottomOf="@id/backButton"
+            app:layout_constraintStart_toEndOf="@id/backButton"
+            app:layout_constraintTop_toTopOf="@id/backButton" />
+
+        <TextView
+            android:id="@+id/titleText"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="10dp"
+            android:ellipsize="end"
+            android:maxLines="1"
+            android:text="会话"
+            android:textColor="#111111"
+            android:textSize="16sp"
+            android:textStyle="bold"
+            app:layout_constraintBottom_toBottomOf="@id/avatarView"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@id/avatarView"
+            app:layout_constraintTop_toTopOf="@id/avatarView" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+    <View
+        android:id="@+id/topDivider"
+        android:layout_width="0dp"
+        android:layout_height="1dp"
+        android:background="#EEEEEE"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/topBar" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/messagesRecyclerView"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:clipToPadding="false"
+        android:overScrollMode="never"
+        android:paddingTop="6dp"
+        android:paddingBottom="6dp"
+        app:layout_constraintBottom_toTopOf="@id/inputBar"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/topDivider" />
+
+    <LinearLayout
+        android:id="@+id/inputBar"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:background="#FAFAFA"
+        android:gravity="center_vertical"
+        android:orientation="horizontal"
+        android:paddingStart="12dp"
+        android:paddingEnd="12dp"
+        android:paddingTop="10dp"
+        android:paddingBottom="10dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/messageInput"
+            android:layout_width="0dp"
+            android:layout_height="40dp"
+            android:layout_weight="1"
+            android:background="@drawable/bg_white_16"
+            android:hint="输入消息..."
+            android:imeOptions="actionSend"
+            android:inputType="text"
+            android:maxLines="4"
+            android:paddingStart="12dp"
+            android:paddingEnd="12dp"
+            android:textColor="#111111"
+            android:textSize="14sp" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/sendButton"
+            android:layout_width="wrap_content"
+            android:layout_height="40dp"
+            android:layout_marginStart="10dp"
+            android:minWidth="64dp"
+            android:text="发送"
+            android:textAllCaps="false"
+            android:textSize="13sp" />
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

android-app/app/src/main/res/layout/activity_room_detail_new.xml

@@ -101,6 +101,18 @@
             app:use_controller="true"
             app:show_buffering="when_playing" />
 
+        <ImageButton
+            android:id="@+id/exitFullscreenButton"
+            android:layout_width="44dp"
+            android:layout_height="44dp"
+            android:layout_gravity="top|start"
+            android:layout_margin="12dp"
+            android:background="@drawable/bg_circle_white_60"
+            android:contentDescription="退出全屏"
+            android:src="@drawable/ic_arrow_back_24"
+            android:tint="@android:color/white"
+            android:visibility="gone" />
+
         <!-- 横屏按钮 -->
         <ImageButton
             android:id="@+id/fullscreenButton"
@@ -202,12 +214,19 @@
         <com.google.android.material.button.MaterialButton
             android:id="@+id/followButton"
             style="@style/Widget.Material3.Button.TonalButton"
-            android:layout_width="wrap_content"
+            android:layout_width="92dp"
-            android:layout_height="32dp"
+            android:layout_height="40dp"
+            android:paddingHorizontal="14dp"
             android:text="关注"
+            android:textColor="@android:color/white"
             android:textSize="12sp"
+            android:maxLines="1"
+            android:ellipsize="end"
+            android:textAllCaps="false"
+            app:backgroundTint="#FF2FD3C7"
             app:icon="@drawable/ic_heart_24"
-            app:iconSize="14dp" />
+            app:iconSize="14dp"
+            app:iconTint="@android:color/white" />
 
     </LinearLayout>
 

android-app/app/src/main/res/layout/activity_user_profile_read_only.xml

@@ -52,19 +52,18 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/backButton" />
 
-        <ImageView
+        <com.google.android.material.imageview.ShapeableImageView
             android:id="@+id/avatar"
             android:layout_width="90dp"
             android:layout_height="90dp"
             android:layout_margin="3dp"
-            android:background="@drawable/bg_avatar_circle_transparent"
-            android:clipToOutline="true"
             android:scaleType="centerCrop"
             android:src="@drawable/wish_tree_checker_backup"
             app:layout_constraintBottom_toBottomOf="@id/avatarRing"
             app:layout_constraintEnd_toEndOf="@id/avatarRing"
             app:layout_constraintStart_toStartOf="@id/avatarRing"
-            app:layout_constraintTop_toTopOf="@id/avatarRing" />
+            app:layout_constraintTop_toTopOf="@id/avatarRing"
+            app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.MaterialComponents.Circular" />
 
         <TextView
             android:id="@+id/name"

android-app/app/src/main/res/layout/item_conversation_message_incoming.xml

@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingStart="12dp"
+    android:paddingEnd="12dp"
+    android:paddingTop="1dp"
+    android:paddingBottom="1dp">
+
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/maxBubbleWidthGuideline"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        app:layout_constraintGuide_percent="0.5" />
+
+    <ImageView
+        android:id="@+id/avatarView"
+        android:layout_width="34dp"
+        android:layout_height="34dp"
+        android:background="@drawable/bg_avatar_circle"
+        android:padding="5dp"
+        android:src="@drawable/ic_account_circle_24"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/nameText"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="10dp"
+        android:ellipsize="end"
+        android:includeFontPadding="false"
+        android:maxLines="1"
+        android:text="对方"
+        android:textColor="#888888"
+        android:textSize="12sp"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@id/avatarView"
+        app:layout_constraintTop_toTopOf="@id/avatarView" />
+
+    <TextView
+        android:id="@+id/messageText"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="10dp"
+        android:layout_marginTop="0dp"
+        android:background="@drawable/bg_bubble_incoming"
+        android:includeFontPadding="false"
+        android:paddingStart="12dp"
+        android:paddingEnd="12dp"
+        android:paddingTop="6dp"
+        android:paddingBottom="6dp"
+        android:text="消息内容"
+        android:textColor="#111111"
+        android:textSize="14sp"
+        app:layout_constrainedWidth="true"
+        app:layout_constraintWidth_default="wrap"
+        app:layout_constraintEnd_toStartOf="@id/maxBubbleWidthGuideline"
+        app:layout_constraintStart_toEndOf="@id/avatarView"
+        app:layout_constraintHorizontal_bias="0"
+        app:layout_constraintTop_toTopOf="@id/avatarView" />
+
+    <TextView
+        android:id="@+id/timeText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="1dp"
+        android:includeFontPadding="false"
+        android:text="12:30"
+        android:textColor="#AAAAAA"
+        android:textSize="11sp"
+        android:visibility="gone"
+        app:layout_constraintStart_toStartOf="@id/messageText"
+        app:layout_constraintTop_toBottomOf="@id/messageText" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

android-app/app/src/main/res/layout/item_conversation_message_outgoing.xml

@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingStart="12dp"
+    android:paddingEnd="12dp"
+    android:paddingTop="1dp"
+    android:paddingBottom="1dp">
+
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/maxBubbleWidthGuideline"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        app:layout_constraintGuide_percent="0.5" />
+
+    <ImageView
+        android:id="@+id/avatarView"
+        android:layout_width="34dp"
+        android:layout_height="34dp"
+        android:background="@drawable/bg_avatar_circle"
+        android:padding="5dp"
+        android:src="@drawable/ic_account_circle_24"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/messageText"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="10dp"
+        android:background="@drawable/bg_bubble_outgoing"
+        android:includeFontPadding="false"
+        android:paddingStart="12dp"
+        android:paddingEnd="12dp"
+        android:paddingTop="6dp"
+        android:paddingBottom="6dp"
+        android:text="消息内容"
+        android:textColor="@android:color/white"
+        android:textSize="14sp"
+        app:layout_constrainedWidth="true"
+        app:layout_constraintWidth_default="wrap"
+        app:layout_constraintStart_toStartOf="@id/maxBubbleWidthGuideline"
+        app:layout_constraintEnd_toStartOf="@id/avatarView"
+        app:layout_constraintHorizontal_bias="1"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/timeText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="1dp"
+        android:includeFontPadding="false"
+        android:text="12:31"
+        android:textColor="#AAAAAA"
+        android:textSize="11sp"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="@id/messageText"
+        app:layout_constraintTop_toBottomOf="@id/messageText" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

android-app/app/src/main/res/values/themes.xml

@@ -26,4 +26,12 @@
         <item name="android:textSize">14sp</item>
     </style>
 
+    <style name="ShapeAppearanceOverlay" parent="ShapeAppearanceOverlay.MaterialComponents" />
+
+    <style name="ShapeAppearanceOverlay.MaterialComponents" />
+
+    <style name="ShapeAppearanceOverlay.MaterialComponents.Circular" parent="ShapeAppearanceOverlay.MaterialComponents">
+        <item name="cornerSize">50%</item>
+    </style>
+
 </resources>