KeyboardButton class
This object represents one button of the reply keyboard. For simple text buttons String can be used instead of this object to specify text of the button. Optional fields web_app, request_contact, request_location, and request_poll are mutually exclusive.
Constructors
- KeyboardButton.requestContact(String text, {bool? requestContact})
- RequestContact constructor
- KeyboardButton.requestLocation(String text, {bool? requestLocation})
- RequestLocation constructor
- KeyboardButton.requestPoll(String text, KeyboardButtonPollType? requestPoll)
- RequestPoll constructor
- KeyboardButton.requestWebApp(String text, WebAppInfo? webApp)
- WebApp constructor
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- requestContact ↔ bool?
-
Optional.
If True, the user's phone number will be sent as a contact when the button
is pressed. Available in private chats only.
getter/setter pair
- requestLocation ↔ bool?
-
Optional.
If True, the user's current location will be sent when the button is
pressed. Available in private chats only.
getter/setter pair
- requestPoll ↔ KeyboardButtonPollType?
-
Optional.
If specified, the user will be asked to create a poll and send it to the
bot when the button is pressed. Available in private chats only.
getter/setter pair
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- text ↔ String
-
Text of the button. If none of the optional fields are used,
it will be sent as a message when the button is pressed
getter/setter pair
- webApp ↔ WebAppInfo?
-
Optional.
If specified, the described Web App will be launched when the button is
pressed.
The Web App will be able to send a “web_app_data” service message.
Available in private chats only.
getter/setter pair
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toJson(
) → Map - Creates a json from the object
-
toString(
) → String -
A string representation of this object.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
fromJson(
Map< String, dynamic> json) → KeyboardButton - Creates a object from a json
-
listFromJsonArray(
List json) → List< KeyboardButton> - Creates a list of object from a json array
-
listOfListsFromJsonArray(
List< List> json) → List<List< KeyboardButton> > - Creates a list of list of object from a json array