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Overview

MessageComposer is a Component 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.

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Usage

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Integration

The following code snippet illustrates how you can directly incorporate the CometChatMessageComposer component into your app. 
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
return <CometChatMessageComposer group={group} />;

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Actions

Actions dictate how a component functions. They are divided into two types: Predefined and User-defined. You can override either type, allowing you to tailor the behavior of the component to fit your specific needs.
onSendButtonPress
The onSendButtonPress 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. 
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const onSendButtonPressHandler = (message: CometChat.BaseMessage) => {
  //code
};
return (
  <CometChatMessageComposer
    group={group}
    onSendButtonPress={onSendButtonPressHandler}
  />
);
onError
This action doesn’t change the behavior of the component but rather listens for any errors that occur in the CometChatMessageComposer component. 
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const onError = (error: CometChat.CometChatException) => {
  //handle error
};
return (
  <CometChatMessageComposer
    group={group}
    onError={onError}
  />
);
onTextChange
Function triggered whenever the message input’s text value changes, enabling dynamic text handling. 
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const onTextChange = (text: string) => {
  //code
};
return (
  <CometChatMessageComposer
    group={group}
    onTextChange={onTextChange}
  />
);

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Filters

MessageComposer component does not have any available filters.

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Events

Events are emitted by a Component. 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 list of events emitted by the Messages component is as follows.
EventDescription
ccMessageSentTriggers whenever a loggedIn user sends any message, it will have two states such as: inprogress, success & error
ccMessageEditedTriggers whenever a loggedIn user edits any message from the list of messages. It will have two states such as: inprogress, success & error
ccMessageLiveReactionTriggers whenever a loggedIn clicks on live reaction
Adding CometChatMessageEvents Listener’s 
import { CometChatUIEventHandler } from "@cometchat/chat-uikit-react-native";

CometChatUIEventHandler.addMessageListener("MESSAGE_LISTENER_ID", {
  ccMessageSent: (item) => {
    //code
  },
});

CometChatUIEventHandler.addMessageListener("MESSAGE_LISTENER_ID", {
  ccMessageEdited: (item) => {
    //code
  },
});

CometChatUIEventHandler.addMessageListener("MESSAGE_LISTENER_ID", {
  ccMessageLiveReaction: (item) => {
    //code
  },
});
Removing CometChatMessageEvents Listener’s 
import { CometChatUIEventHandler } from "@cometchat/chat-uikit-react-native";

CometChatUIEventHandler.removeMessageListener("MESSAGE_LISTENER_ID");

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Customization

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

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Style

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

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Functionality

These are a set of small functional customizations that allow you to fine-tune the overall experience of the component. With these, you can change text, set custom icons, and toggle the visibility of UI elements. Below is a list of customizations along with corresponding code snippets
PropertyDescriptionCode
userUsed to pass user object of which header specific details will be showuser={chatUser}
groupUsed to pass group object of which header specific details will be showngroup={chatGroup}
disableTypingEventsUsed to disable/enable typing events , default falsedisableTypingEvents={true}
disableSoundForOutgoingMessagesUsed to toggle sound for outgoing messagesdisableSoundForOutgoingMessages={true}
initialComposertextUsed to set predefined textinitialComposertext="Your custom text"
customSoundForOutgoingMessageUsed to give custom sounds to outgoing messagescustomSoundForOutgoingMessage="your custom sound for messages"
hideVoiceRecordingButtonused to hide the voice recording option.hideVoiceRecording={true}
hideCameraOptiontoggle visibility of camera option from the attachment options.hideCameraOption={true}
hideImageAttachmentOptiontoggle visibility of image attachment options.hideImageAttachmentOption={true}
hideVideoAttachmentOptiontoggle visibility of video attachment options.hideVideoAttachmentOption={true}
hideAudioAttachmentOptiontoggle visibility of audio attachment options.hideAudioAttachmentOption={true}
hideFileAttachmentOptiontoggle visibility of file attachment options.hideFileAttachmentOption={true}
hidePollsAttachmentOptiontoggle visibility of file polls attachment options.hidePollsAttachmentOption={true}
hideCollaborativeDocumentOptiontoggle visibility of file Collaborative Document Option.hideCollaborativeDocumentOption={true}
hideCollaborativeWhiteboardOptiontoggle visibility of file Collaborative Whiteboard Option.hideCollaborativeWhiteboardOption={true}
hideAttachmentButtontoggle visibility of hide attachment option.hideAttachmentButton={true}
hideStickersButtontoggle visibility of hide stickers option.hideStickersButton={true}
hideSendButtontoggle visibility of send button option.hideSendButton={true}
hideAuxiliaryButtonstoggle visibility of Auxiliary button option.hideAuxiliaryButtons={true}
disableMentionsSets whether mentions in text should be disabled. Processes the text formatters If there are text formatters available and the disableMentions flag is set to true, it removes any formatters that are instances of CometChatMentionsFormatter.disableMentions={true}

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Advanced

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

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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 
import {
  CometChatMessageComposer,
  CometChatTextFormatter,
  CometChatMentionsFormatter,
} from "@cometchat/chat-uikit-react-native";
import { CometChat } from "@cometchat/chat-sdk-react-native";
//code
const getTextFomatters = () => {
  const textFormatters: CometChatTextFormatter[] = [];
  const mentionsFormatter = new CometChatMentionsFormatter();
  mentionsFormatter.setMentionsStyle({
    textStyle: {
      color: "#D6409F",
    },
    selfTextStyle: {
      color: "#30A46C",
    },
  });
  textFormatters.push(mentionsFormatter);
  return textFormatters;
};
return (
  <CometChatMessageComposer
    group={group}
    textFormatters={getTextFomatters()}
  />
);
Example

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AttachmentOptions

By using attachmentOptions, you can set a list of custom MessageComposerActions for the MessageComposer Component. This will override the existing list of MessageComposerActions. 
import {
  CometChatMessageComposer,
  CometChatTextFormatter,
  CometChatMentionsFormatter,
} from "@cometchat/chat-uikit-react-native";
import { CometChat } from "@cometchat/chat-sdk-react-native";
//code
const getCustomAttachmentOptions = ({
  user,
  group,
  composerId,
}: {
  user?: CometChat.User;
  group?: CometChat.Group;
  composerId: Map<any, any>;
}): CometChatMessageComposerAction[] => {
  let attachmentOptions: CometChatMessageComposerAction[] = [];
  attachmentOptions.push({
    id: "location",
    icon: LocationIcon,
    title: "Share Location",
    style: { iconStyle: { tintColor: "grey" } },
    onPress: () => {
      //handleOnPress
    },
  });
  return attachmentOptions;
};
return (
  <CometChatMessageComposer
    group={group}
    attachmentOptions={getCustomAttachmentOptions()}
  />
);
Example

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AuxiliaryButtonView

You can insert a custom view into the MessageComposer component to add additional functionality using the following method. 
import { CometChat } from "@cometchat/chat-sdk-react-native";
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code

const styles = StyleSheet.create({
  button: {
    height: 25,
    width: 25,
    borderRadius: 0,
    backgroundColor: "transparent",
  },
  image: {
    height: 23,
    width: 24,
    tintColor: "#7E57C2",
  },
});

const customAuxiliaryButtonView = ({
  user,
  group,
  composerId,
}: {
  user?: CometChat.User,
  group?: CometChat.Group,
  composerId: string | number,
}): JSX.Element => {
  return (
    <TouchableOpacity
      style={styles.button}
      onPress={() => {
        /* code */
      }}
    >
      <Image source={LocationIcon} style={styles.image} />
    </TouchableOpacity>
  );
};

return (
  <CometChatMessageComposer
    group={group}
    AuxiliaryButtonView={customAuxiliaryButtonView}
  />
);
Please note that the MessageComposer Component utilizes the AuxiliaryButton to provide sticker functionality. Overriding the AuxiliaryButton will subsequently replace the sticker functionality. Example

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SendButtonView

You can set a custom view in place of the already existing send button view. Using the following method. 
import { CometChat } from "@cometchat/chat-sdk-react-native";
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const styles = StyleSheet.create({
  button: {
    height: 25,
    width: 25,
    borderRadius: 0,
    backgroundColor: "transparent",
  },
  image: {
    height: 23,
    width: 24,
    tintColor: "#7E57C2",
  },
});

const customSendButtonView = ({
  user,
  group,
  composerId,
}: {
  user?: CometChat.User,
  group?: CometChat.Group,
  composerId: string | number,
}): JSX.Element => {
  return (
    <TouchableOpacity
      style={styles.button}
      onPress={() => {
        /* code */
      }}
    >
      <Image source={SendButtonIcon} style={styles.image} />
    </TouchableOpacity>
  );
};

return (
  <CometChatMessageComposer
    group={group}
    SendButtonView={customSendButtonView}
  />
);
Example

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HeaderView

You can set custom headerView to the MessageComposer component using the following method 
import { CometChat } from "@cometchat/chat-sdk-react-native";
import { CometChatMessageComposer } from "@cometchat/chat-uikit-react-native";
//code
const viewStyle: StyleProp<ViewStyle> = {
  flexDirection: "row",
  alignItems: "flex-start",
  justifyContent: "center",
  padding: 5,
  borderColor: "black",
  borderWidth: 1,
  backgroundColor: "white",
  borderRadius: 10,
  margin: 2,
  marginLeft: 7.4,
  height: 30,
  width: "95.5%",
};

const customHeaderView = ({
  user,
  group,
}: {
  user?: CometChat.User,
  group?: CometChat.Group,
}) => {
  return (
    <View style={viewStyle}>
      <Text style={{ color: "#6851D6", fontWeight: "bold" }}>Chat Bot</Text>
    </View>
  );
};

return (
  <CometChatMessageComposer
    group={group}
    HeaderView={customHeaderView}
  />
);
Example