Cometchat Android V5 Components

Companion skills: cometchat-android-v5-core covers initialization and login;

cometchat-android-v5-placement covers where to put these components;

cometchat-android-v5-customization covers how to modify component behavior.

Purpose

This is the single source of truth for CometChat Android UI Kit v5 component names, key methods, and usage. Check this catalog before writing any CometChat view code. If a component is not listed here, it does not exist in the UI Kit.

All components extend MaterialCardView and can be used in XML layouts or created programmatically. They follow a consistent pattern: set a User or Group object, configure visibility/style via setters, and attach callbacks for user interactions.

---

Use this skill when

• Writing code that uses any CometChat* view
• Looking up component names, methods, or XML attributes
• Composing multiple components together (e.g., message header + list + composer)
• "What components does CometChat have?"
• "How do I use CometChatConversations?"

Do not use this skill when

• Setting up init/login → use cometchat-android-v5-core
• Customizing themes/colors → use cometchat-android-v5-theming
• Writing custom message templates → use cometchat-android-v5-customization

---

1. Core messaging components

These are the components you use to build a chat experience. Most integrations use some combination of these.

CometChatConversations

Renders a scrollable list of the logged-in user's conversations (both 1:1 and group).

Key methods:

XML usage:

<com.cometchat.chatuikit.conversations.CometChatConversations
    android:id="@+id/conversations"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

Java:

CometChatConversations conversations = findViewById(R.id.conversations);
conversations.setOnItemClick((view, position, conversation) -> {
    // Navigate to message screen with conversation.getConversationWith()
});

Kotlin:

val conversations = findViewById<CometChatConversations>(R.id.conversations)
conversations.setOnItemClick { view, position, conversation ->
    // Navigate to message screen with conversation.conversationWith
}

---

CometChatMessageList

Renders messages for a specific user or group conversation. The main chat area.

Key methods:

Java:

CometChatMessageList messageList = findViewById(R.id.messageList);
messageList.setUser(user);  // or messageList.setGroup(group);

Kotlin:

val messageList = findViewById<CometChatMessageList>(R.id.messageList)
messageList.setUser(user)  // or messageList.setGroup(group)

---

CometChatMessageComposer

A text input with send button, attachment options, emoji, and voice note support. Sends messages to the specified user or group.

Key methods:

Java:

CometChatMessageComposer composer = findViewById(R.id.composer);
composer.setUser(user);  // or composer.setGroup(group);

Kotlin:

val composer = findViewById<CometChatMessageComposer>(R.id.composer)
composer.setUser(user)  // or composer.setGroup(group)

---

CometChatMessageHeader

Displays the name, avatar, and status of the user or group at the top of a message view.

Key methods:

Java:

CometChatMessageHeader header = findViewById(R.id.header);
header.setUser(user);
header.setBackIconVisibility(View.VISIBLE);
header.setOnBackPress(() -> finish());

Kotlin:

val header = findViewById<CometChatMessageHeader>(R.id.header)
header.setUser(user)
header.setBackIconVisibility(View.VISIBLE)
header.setOnBackPress { finish() }

---

2. List components

CometChatUsers

Renders a scrollable list of users with alphabetical sticky headers.

Key methods:

CometChatGroups

Renders a scrollable list of groups.

Key methods:

CometChatGroupMembers

Renders the member list for a specific group.

Key methods:

---

3. Call components

CometChatCallLogs

Renders a list of past calls with duration, type, and timestamp.

CometChatIncomingCall

Incoming call notification banner with accept/reject buttons. Typically added to your root Activity layout.

CometChatOutgoingCall

Outgoing call screen with ringing indicator.

CometChatOngoingCall

Active call view (video/audio, controls).

---

4. Other components

CometChatSearch

Search component for finding conversations and messages.

CometChatReactionList

Full reaction list showing who reacted with which emoji.

CometChatThreadHeader

Thread header with parent message preview and reply count.

---

5. Shared views (building blocks)

These are lower-level views used inside the main components:

---

6. Composition patterns

Two-pane chat (conversation list + message view)

The most common pattern — conversation list on one side, active chat on the other. On phones, this is typically two Activities or Fragments with navigation between them.

Java:

// In ConversationsFragment or Activity
CometChatConversations conversations = findViewById(R.id.conversations);
conversations.setOnItemClick((view, position, conversation) -> {
    Intent intent = new Intent(this, MessagesActivity.class);
    if (conversation.getConversationType().equals("user")) {
        intent.putExtra("uid", ((User) conversation.getConversationWith()).getUid());
    } else {
        intent.putExtra("guid", ((Group) conversation.getConversationWith()).getGuid());
    }
    startActivity(intent);
});

// In MessagesActivity
CometChatMessageHeader header = findViewById(R.id.header);
CometChatMessageList messageList = findViewById(R.id.messageList);
CometChatMessageComposer composer = findViewById(R.id.composer);

String uid = getIntent().getStringExtra("uid");
if (uid != null) {
    CometChat.getUser(uid, new CometChat.CallbackListener<User>() {
        @Override
        public void onSuccess(User user) {
            header.setUser(user);
            messageList.setUser(user);
            composer.setUser(user);
        }

        @Override
        public void onError(CometChatException e) { }
    });
}

Kotlin:

// In ConversationsFragment or Activity
val conversations = findViewById<CometChatConversations>(R.id.conversations)
conversations.setOnItemClick { view, position, conversation ->
    val intent = Intent(this, MessagesActivity::class.java)
    when (conversation.conversationType) {
        "user" -> intent.putExtra("uid", (conversation.conversationWith as User).uid)
        "group" -> intent.putExtra("guid", (conversation.conversationWith as Group).guid)
    }
    startActivity(intent)
}

// In MessagesActivity
val header = findViewById<CometChatMessageHeader>(R.id.header)
val messageList = findViewById<CometChatMessageList>(R.id.messageList)
val composer = findViewById<CometChatMessageComposer>(R.id.composer)

val uid = intent.getStringExtra("uid")
uid?.let {
    CometChat.getUser(it, object : CometChat.CallbackListener<User>() {
        override fun onSuccess(user: User) {
            header.setUser(user)
            messageList.setUser(user)
            composer.setUser(user)
        }
        override fun onError(e: CometChatException) { }
    })
}

Messages Activity XML layout

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <com.cometchat.chatuikit.messageheader.CometChatMessageHeader
        android:id="@+id/header"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <com.cometchat.chatuikit.messagelist.CometChatMessageList
        android:id="@+id/messageList"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

    <com.cometchat.chatuikit.messagecomposer.CometChatMessageComposer
        android:id="@+id/composer"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

Bottom navigation with tabs (Conversations + Users + Groups + Calls)

// In HomeActivity — switch fragments based on bottom nav selection
binding.bottomNavigationView.setOnItemSelectedListener(item -> {
    Fragment fragment;
    if (item.getItemId() == R.id.nav_chats) {
        fragment = new ChatsFragment();
    } else if (item.getItemId() == R.id.nav_users) {
        fragment = new UsersFragment();
    } else if (item.getItemId() == R.id.nav_groups) {
        fragment = new GroupsFragment();
    } else if (item.getItemId() == R.id.nav_calls) {
        fragment = new CallsFragment();
    } else {
        return false;
    }
    getSupportFragmentManager().beginTransaction()
        .replace(R.id.fragment_container, fragment)
        .commit();
    return true;
});

---

Hard rules

• Never invent component names. If it's not in this catalog, it doesn't exist.
• `setUser()` and `setGroup()` are mutually exclusive. Set one or the other, never both.
• Components require a logged-in user. Always verify CometChatUIKit.getLoggedInUser() != null before mounting.
• All components extend `MaterialCardView`. They can be used in XML or created programmatically.
• Thread mode — CometChatMessageList.setParentMessage(long) (no Id suffix on the list) and CometChatMessageComposer.setParentMessageId(long). Both must point to the same parent message ID. Without them, the list and composer show the main conversation, not the thread.