dash_chat使用及方法

/// Flex value for the messeage container defaults to 1

/// Made so that the message container takes as much as possible

/// if no height or width is passed explicity

final int messageContainerFlex;

/// Height for the Dash chat Widget

final double height;

// Width for the Dash chat Widget

final double width;

/// List of messages to display in the chat container

/// Takes a [List] of [ChatMessage]

final List<ChatMessage> messages;

/// If provided, this text editing controller will be used for

/// the text input.

final TextEditingController textController;

/// If provided, this focus node will be used for the text input.

final FocusNode focusNode;

/// Use to change the direction of the text ltr is used for

/// launguages that start from left like English &

/// rtl is used for languages like Arabic

///

/// Defaults to `TextDirection.ltr`

final TextDirection inputTextDirection;

/// If provided will stop using the default controller

/// i.e [TextEditingController] and will use this to update the

/// text input field.

final String text;

/// If the text parameter is passed then onTextChange must also

/// be passed.

final Function(String) onTextChange;

/// Used to provide input decoration to the text as default only

/// to the input placeholder for the chat input

/// "Add Message here...".

final InputDecoration inputDecoration;

///Configures how the platform keyboard will select an uppercase or lowercase keyboard.

///Only supports text keyboards, other keyboard types will ignore this configuration. Capitalization is locale-aware.

///Defaults to [TextCapitalization.none]. Must not be null.

final TextCapitalization textCapitalization;

/// Usually new message added by the user gets [Uuid] String

/// Can be override by proving this parameter

final String Function() messageIdGenerator;

/// The current user object [ChatUser].

final ChatUser user;

/// To function where you can make api calls and play

/// with the [ChatMessage] obeject before make calls.

final Function(ChatMessage) onSend;

/// Should the send button be always active it defaults to false

/// Usually it will only become active if some text is entered.

final bool alwaysShowSend;

/// [DateFormat] object for formatting date to show in [MessageListView]

/// defaults to `HH:mm:ss`.

final DateFormat dateFormat;

/// [DateFormat] object for formatting time to show in [MessageContainer]

/// defaults to `yyyy-MM-dd`.

final DateFormat timeFormat;

/// Should the user avatar be shown defaults to false and will not

/// show the user avatar.

final bool showUserAvatar;

/// avatarBuilder will override the the default avatar which uses

/// [CircleAvatar].

final Widget Function(ChatUser) avatarBuilder;

/// Should the avatar be shown for every message defaulst to false.

final bool showAvatarForEveryMessage;

/// [onPressAvatar] function takes a function with this structure

/// [Function(ChatUser)] will trigger when the avatar

/// is tapped on

final Function(ChatUser) onPressAvatar;

/// [onLongPressAvatar] function takea a function with this structure

/// [Function(ChatUser)] will trigger when the avatar

/// is long pressed

final Function(ChatUser) onLongPressAvatar;

/// [onLongPressMessage] function takea a function with this structure

/// [Function(ChatMessage)] will trigger when the message

/// is long pressed.

final Function(ChatMessage) onLongPressMessage;

/// Should the messages be shown in reversed order.

final bool inverted;

/// messageBuilder will override the the default chat container which uses

/// and you will need to build complete message Widget it will not accept

/// and include any other builder functions.

final Widget Function(ChatMessage) messageBuilder;

/// messageTextBuilder will override the the default message text.

final Widget Function(String) messageTextBuilder;

/// messageImageBuilder will override the the default Image.

final Widget Function(String url) messageImageBuilder;

/// messageTimeBuilder will override the the default text.

final Widget Function(String url) messageTimeBuilder;

/// dateBuilder will override the the default time text.

final Widget Function(String) dateBuilder;

/// A Widget that will be shown below the [MessageListView] like you can

/// show a "tying..." at the end.

final Widget Function() chatFooterBuilder;

/// Main input length of the input text box defaulst to no limit.

final int maxInputLength;

/// Used to parse text to make it linkified text uses

/// [flutter_parsed_text](https://pub.dev/packages/flutter_parsed_text)

/// takes a list of [MatchText] in order to parse Email, phone, links

/// and can also add custom pattersn using regex

final List<MatchText> parsePatterns;

/// Provides a custom style to the message container

/// takes [BoxDecoration]

final BoxDecoration messageContainerDecoration;

/// [List] of [Widget] to show before the [TextField].

final List<Widget> leading;

/// [List] of [Widget] to show after the [TextField].will remove the

/// send button and will have to implement that yourself.

final List<Widget> trailing;

/// sendButtonBuilder will override the the default [IconButton].

final Widget Function(Function) sendButtonBuilder;

/// Style for the [TextField].

final TextStyle inputTextStyle;

/// [TextField] container style.

final BoxDecoration inputContainerStyle;

/// Max length of the input lines default to 1.

final int inputMaxLines;

/// Should the input cursor be shown defaults to true.

final bool showInputCursor;

/// Width of the text input defaults to 2.0.

final double inputCursorWidth;

/// Color of the input cursor defaults to theme.

final Color inputCursorColor;

/// ScrollController for the [MessageListView] will use the default

/// scrollcontroller in the Widget.

final ScrollController scrollController;

/// A Widget that will be shown below the [ChatInputToolbar] like you can

/// show a list of buttons like file image just like in Slack app.

final Widget Function() inputFooterBuilder;

/// Padding for the [MessageListView].

final EdgeInsetsGeometry messageContainerPadding;

/// Callback method when the quickReply was tapped on

/// will pass [Reply] as a paramter to function.

final Function(Reply) onQuickReply;

/// Container style for the QuickReply Container [BoxDecoration].

final BoxDecoration quickReplyStyle;

/// [TextStyle] for QuickReply textstyle.

final TextStyle quickReplyTextStyle;

/// quickReplyBuilder will override the the default QuickReply Widget.

final Widget Function(Reply) quickReplyBuilder;

/// Should the [trailling] Widgets be shown before the send button

/// As default it will be shown before the send button.

final bool showTraillingBeforeSend;

/// Should the scroll to bottom widget be shown

/// default to true.

final bool scrollToBottom;

/// Overrides the default [scrollToBottomWidget] with a custom widget

final Widget Function() scrollToBottomWidget;

/// Override the default behaviour of the onScrollToBottom Widget

final Function onScrollToBottomPress;

/// Should the LoadEarlier Floating widget be shown or use

/// load as you scroll scheme whcih will call the [onLoadEarlier]

/// function as default it is set to this scheme which is false.

/// false - load as you scroll scheme

/// true - shows a loadEarlier Widget

final bool shouldShowLoadEarlier;