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Message Composer

Overview

CometChatMessageComposer is a Widget that enables users to write and send a variety of messages, including text, image, video, and custom messages.

Features such as Live Reaction, Attachments, and Message Editing are also supported by it.

Image

CometChatMessageComposer is comprised of the following Base Widgets:

Base WidgetsDescription
MessageInputThis provides a basic layout for the contents of this component, such as the TextField and buttons
ActionSheetThe ActionSheet widget presents a list of options in either a list or grid mode, depending on the user's preference

Usage

Integration

You can launch CometChatMessageComposer directly using Navigator.push, or you can define it as a widget within the build method of your State class.

1. Using Navigator to Launch CometChatMessageComposer
Navigator.push(context, MaterialPageRoute(builder: (context) => CometChatMessageComposer())); // A user or group object is required to launch this widget.
2. Embedding CometChatMessageComposer as a Widget in the build Method
import 'package:cometchat_chat_uikit/cometchat_chat_uikit.dart';
import 'package:flutter/material.dart';

class MessageComposer extends StatefulWidget {
const MessageComposer({super.key});


State<MessageComposer> createState() => _MessageComposerState();
}

class _MessageComposerState extends State<MessageComposer> {


Widget build(BuildContext context) {
return Scaffold(
body: SafeArea(
child: Column(
children: [
const Spacer(),
CometChatMessageComposer()
],
) // A user or group object is required to launch this widget.
)
);
}
}

Actions

Actions dictate how a widget functions. They are divided into two types: Predefined and User-defined. You can override either type, allowing you to tailor the behavior of the widget to fit your specific needs.

1. OnSendButtonClick

The OnSendButtonClick event gets activated when the send message button is clicked. It has a predefined function of sending messages entered in the composer EditText. However, you can overide this action with the following code snippet.

CometChatMessageComposer(
user: user,
onSendButtonTap: (BuildContext context, BaseMessage baseMessage, PreviewMessageMode? previewMessageMode) {
// TODO("Not yet implemented")
},
)

2. onChange

This action handles changes in the value of text in the input field of the CometChatMessageComposer widget.

CometChatMessageComposer(
user: user,
onChange: (String? text) {
// TODO("Not yet implemented")
},
)

3. onError

This action doesn't change the behavior of the widget but rather listens for any errors that occur in the MessageList widget.

CometChatMessageComposer(
user: user,
onError: (e) {
// TODO("Not yet implemented")
},
)

Filters

CometChatMessageComposer widget does not have any available filters.


Events

Events are emitted by a Widget. By using event you can extend existing functionality. Being global events, they can be applied in Multiple Locations and are capable of being Added or Removed.

The CometChatMessageComposer Widget does not emit any events of its own.


Customization

To fit your app's design requirements, you can customize the appearance of the CometChatMessageComposer widget. We provide exposed methods that allow you to modify the experience and behavior according to your specific needs.

Style

Using Style you can customize the look and feel of the widget in your app, These parameters typically control elements such as the color, size, shape, and fonts used within the widget.

1. CometChatMessageComposer Style

To modify the styling, you can apply the MessageComposerStyle to the CometChatMessageComposer Widget using the messageComposerStyle method.

CometChatMessageComposer(
user: user,
messageComposerStyle: MessageComposerStyle(
background: Color(0xFFE4EBF5),
inputBackground: Color(0xFFE4EBF5),
border: Border.all(width: 3, color: Color(0xFF6851D6))
),
)
Image

The following properties are exposed by MessageComposerStyle:

PropertyDescriptionCode
Ai Icon TintSets the tint color for the AI icon.aiIconTint: Color?
Attachment Icon TintSets the tint color for the attachment icon.attachmentIconTint: Color?
BackgroundSets the background color of the message composer.background: Color?
BorderSets the border properties of the message composer.border: Border?
Border RadiusSets the border radius of the message composer.borderRadius: BorderRadius?
Close Icon TintSets the tint color for the close icon.closeIconTint: Color?
Content PaddingSets the padding around the content.contentPadding: EdgeInsets?
Divider TintSets the tint color for the divider.dividerTint: Color?
GradientSets the gradient applied to the message composer.gradient: Gradient?
HeightSets the height of the message composer.height: double?
Input BackgroundSets the background color of the input field.inputBackground: Color?
Input GradientSets the gradient applied to the input field.inputGradient: Gradient?
Input Text StyleSets the text style for the input field.inputTextStyle: TextStyle?
Message Input PaddingSets the padding around the message input field.messageInputPadding: EdgeInsets?
Placeholder Text StyleSets the text style for the placeholder text.placeholderTextStyle: TextStyle?
Send Button IconSets the icon for the send button.sendButtonIcon: Icon?
Send Button Icon TintSets the tint color for the send button icon.sendButtonIconTint: Color?
Voice Recording Icon TintSets the tint color for the voice recording icon.voiceRecordingIconTint: Color?
WidthSets the width of the message composer.width: double?

2. MediaRecorder Style

To customize the styles of the MediaRecorder widget within the CometChatMessageComposer Widget, use the mediaRecorderStyle. For more details, please refer to MediaRecorder styles.

CometChatMessageComposer(
user: user,
mediaRecorderStyle: MediaRecorderStyle(
background: Color(0xFFE4EBF5),
border: Border.all(width: 3, color: Colors.red),
pauseIconTint: Colors.red,
playIconTint: Colors.red,
closeIconTint: Colors.red,
timerTextStyle: const TextStyle(color: Colors.black, fontFamily: "PlaywritePL"),
submitIconTint: Colors.red,
startIconTint: Colors.red,
stopIconTint: Colors.red,
),
)

3. AI Options Style

To customize the styles of the AI Options widget within the CometChatMessageComposer Widget, use the aiOptionStyle.

CometChatMessageComposer(
user: user,
aiOptionStyle: AIOptionsStyle(
background: Color(0xFFE4EBF5),
border: Border.all(width: 3, color: Colors.red),
)
)

Functionality

These are a set of small functional customizations that allow you to fine-tune the overall experience of the widget. With these, you can change text, set custom icons, and toggle the visibility of UI elements.

Image
CometChatMessageComposer(
user: user,
placeholderText: "Type a message...",
liveReactionIcon: const Icon(Icons.live_tv, color: Colors.green,),
hideVoiceRecording: true,
disableMentions: true,
)
Image

Below is a list of customizations along with corresponding code snippets

PropertyDescriptionCode
Ai IconSets the AI icon.aiIcon: Icon?
Ai Icon UrlSets the URL for the AI icon.aiIconURL: String?
Attachment IconSets the icon for attachments.attachmentIcon: Icon?
Attachment Icon UrlSets the URL for the attachment icon.attachmentIconURL: String?
Attachment OptionsSets the options for attachment actions.attachmentOptions: ComposerActionsBuilder?
Auxiliary Buttons AlignmentSets the alignment for auxiliary buttons.auxiliaryButtonsAlignment: Alignment?
Custom Sound For MessageSets the custom sound for messages.customSoundForMessage: String?
Delete IconSets the icon for the delete action.deleteIcon: Icon?
Disable MentionsDisables mentions in the message composer.disableMentions: bool?
Disable Sound For MessagesDisables sound notifications for messages.disableSoundForMessages: bool
Disable Typing EventsDisables typing events.disableTypingEvents: bool
Live Reaction IconSets the icon for live reactions.liveReactionIcon: Icon?
Live Reaction Icon UrlSets the URL for the live reaction icon.liveReactionIconURL: String?
Max LineSets the maximum number of lines for the input field.maxLine: int?
Pause IconSets the icon for the pause action.pauseIcon: Icon?
Placeholder TextSets the placeholder text for the input field.placeholderText: String?
Play IconSets the icon for the play action.playIcon: Icon?
Record IconSets the icon for the record action.recordIcon: Icon?
Stop IconSets the icon for the stop action.stopIcon: Icon?
Submit IconSets the icon for the submit action.submitIcon: Icon?
TextSets the initial text for the input field.text: String?

Advanced

For advanced-level customization, you can set custom widgets to the widget. This lets you tailor each aspect of the widget to fit your exact needs and application aesthetics. You can create and define your widgets and then incorporate those into the widget.


TextFormatters

Assigns the list of text formatters. If the provided list is not null, it sets the list. Otherwise, it assigns the default text formatters retrieved from the data source. To configure the existing Mentions look and feel check out CometChatMentionsFormatter

Example

Here is the complete example for reference:

CometChatMessageComposer(
user: user,
textFormatters: [
CometChatMentionsFormatter(
messageBubbleTextStyle: (theme, alignment,{forConversation = false}) =>
TextStyle(
color: alignment==BubbleAlignment.left? Colors.orange : Colors.pink,
fontSize: 14,
fontWeight: FontWeight.bold
),
)
],
)
Image

AttachmentOptions

By using attachmentOptions, you can set a list of custom MessageComposerActions for the CometChatMessageComposer Widget. This will override the existing list of MessageComposerActions.

Example

Here is the complete example for reference:

CometChatMessageComposer(
user: user,
attachmentOptions: (context, user, group, id) {
return [
CometChatMessageComposerAction(
id: 'opt1',
title: "Send Image",
iconUrl: "assets/img/envelope.png",
onItemClick: (BuildContext context, User? user, Group? group) {
// TODO("Not yet implemented")
}
),
CometChatMessageComposerAction(
id: 'opt1',
title: "Send Image",
iconUrl: "assets/img/envelope.png",
onItemClick: (BuildContext context, User? user, Group? group) {
// TODO("Not yet implemented")
}
),
CometChatMessageComposerAction(
id: 'opt1',
title: "Send Image",
iconUrl: "assets/img/envelope.png",
onItemClick: (BuildContext context, User? user, Group? group) {
// TODO("Not yet implemented")
}
),
];
},
)
Image

AuxiliaryButton Widget

You can insert a custom widget into the CometChatMessageComposer widget to add additional functionality using the following method.

Example

Here is the complete example for reference:

CometChatMessageComposer(
user: user,
auxiliaryButtonView: (context, user, group, id) {
return Container(
color: Colors.yellow,
padding: const EdgeInsets.all(8),
child: const Row(
children: [
Icon(Icons.account_balance_wallet_outlined, color: Color(0xFF6851D6)),
SizedBox(width: 10,),
Icon(Icons.add_alert_outlined, color: Color(0xFF6851D6)),
],
),
);
}
)
Image

SecondaryButton Widget

You can add a custom widget into the SecondaryButton widget for additional functionality using the below method.

Example

Here is the complete example for reference:

CometChatMessageComposer(
user: user,
secondaryButtonView: (context, user, group, id) {
return Container(
color: Colors.yellow,
padding: const EdgeInsets.all(8),
child: const Icon(Icons.menu, color: Color(0xFF6851D6)),
);
},
)
Image

SendButton Widget

You can set a custom widget in place of the already existing send button widget. Using the following method.

Example

Here is the complete example for reference:

CometChatMessageComposer(
user: user,
sendButtonView: Container(
color: Colors.yellow,
padding: const EdgeInsets.all(8),
child: const Icon(Icons.send_time_extension_outlined, color: Color(0xFF6851D6)),
),
)
Image

Header Widget

You can set custom headerView to the CometChatMessageComposer widget using the following method

Example

Here is the complete example for reference:

CometChatMessageComposer(
user: user,
headerView: (context, user, group, id) {
return Container(
width: MediaQuery.of(context).size.width/1.08,
color: Colors.yellow,
padding: const EdgeInsets.all(8),
child: const Center(child: Text("Your Header Widget")),
);
},
)
Image

You can set a custom footer widget to the CometChatMessageComposer widget using the following method:

Example

Here is the complete example for reference:

CometChatMessageComposer(
user: user,
footerView: (context, user, group, id) {
return Container(
width: MediaQuery.of(context).size.width/1.08,
color: Colors.yellow,
padding: const EdgeInsets.all(8),
child: const Center(child: Text("Your Footer Widget")),
);
},
)
Image