widget_toolkit_otp 0.0.1-dev3 widget_toolkit_otp: ^0.0.1-dev3 copied to clipboard
Package helping with building sms or pin code fields and screens in a matter of minutes
widget_toolkit_otp #
The widget_toolkit_otp
package contains a number of useful widgets that can help you with building sms/pin code screens or workflows for your app. The package contains widgets for entering pin codes, pasting them, resend logic and more.
Demo #
Widgets #
The widget_toolkit_otp
package consists of the following widgets:
SmsCodeField #
SmsCodeField
is a wrapper around package Pinput and exposes all its customization options. In addition it provides default implementations for some of the package properties and styles it in themeData
. Supports auto fill and paste. By default it uses the inter feature communication, implemented with the SmsCodeBloc
. To use it as stand alone widget, set its property useInternalCommunication
to false.
CountdownWidget #
CountdownWidget
is used to keep track of the remaining time.
An onCountdownTick
callback can be provided to keep track of any changes happening. This callback accepts the remaining countdown time to which the user of the widget can react. This callback is triggered after the frame has been rendered in order to prevent any potential setStates
happening and modifying the widget during its build phase.
You can also access the remaining time, as well as the elapsed time of the countdown via a controller. The controller also gives you the possibility to reset the countdown and start it from a custom time (provided in seconds).
By default, every countdown is presented in the format of remaining seconds, however, you can change this to include minutes and hours by changing the timeFormat
parameter of the widget.
By default, the highest number (minutes in the minutes format, hours in the hours format) will be displayed with double digits (even if a single digit number is presented). In case you want to disable this behavior, you can set the preferDoubleDigitsForTime
parameter to false
.
AutomatedResendCodeButton #
AutomatedResendCodeButton
maintains its own state. Once the button gets pressed, it goes through a few statuses (loading
, codeSent
, disabled
, active
, error
). The button is enabled only in the active
state. There are a lot of options to be customized such as providing icons
, labels
, colorStyles
, textStyles
etc. To prevent the user from spam pressing the button it gets disabled for long after the onPressed
callback is executed. That way we are not going to sent too many codes and confuse the user. Uses the CountdownWidget
under the hood.
ResendCodeButton #
ResendCodeButton
might be maintained from your business logic, but by default it uses SmsCodeBloc
. It builds a TextButton
with great amount of customization options and automated styling.
SmsPhoneNumberField #
SmsPhoneNumberField
is a kind of builder which provides a phone number and a callback to update the saved phone number. It is handy for building (if needed) a featured field, wrapped in a SmsCodeWidget
.
ResendButtonTimer #
ResendButtonTimer
wraps CountdownWidget
with the business logic provided from SmsCodeBloc
. It has a builder, which allows you to build a custom widget in place of the CountdownWidget
, using the same business logic.
ValidityWidget #
ValidityWidget
displays how long will be valid lately sent to the user code. This widget can not be used outside the SmsCodeBloc
and its content might be fully recreated using its builder.
SmsCodeProvider #
SmsCodeProvider
is a user friendly way to provide all dependencies for the implemented business logic and, in the same step, arrange the page content depending on the bloc's states and events.
Setup #
Step 1. Add the widget_toolkit_otp
and widget_toolkit
packages as dependencies:
$ flutter pub add widget_toolkit widget_toolkit_otp
Step 2. Import the packages by including them in you source file:
import 'package:widget_toolkit/widget_toolkit.dart';
import 'package:widget_toolkit_otp/widget_toolkit_otp.dart';
Step 3. Set the appropriate ThemeData
:
return MaterialApp(
theme: ThemeData.light().copyWith(
colorScheme: ColorScheme.fromSwatch(),
extensions: [
WidgetToolkitTheme.light,
SmsCodeTheme.light,
],
),
darkTheme: ThemeData.dark().copyWith(
colorScheme: ColorScheme.fromSwatch(),
extensions: [
WidgetToolkitTheme.dark,
SmsCodeTheme.dark,
],
),
...
);
How To Use #
There are two ways of using this package - to use prebuilt widgets to visualize your own business logic, or to use the provided SmsCodeBloc
and arrange widgets in a page however you want.
You can use the following widgets without SmsCodeBloc
:
CountdownWidget
AutomatedResendCodeButton
SmsCodeField(set useInternalCommunication = false)
ResendCodeButton(set useInternalCommunication = false)
To use the implemented business logic, you first need to provide in the context SmsCodeBloc
and an implementation of SmsCodeService
. Then, to render your page content, you can use SmsPhoneNumberField
(combine it with custom widget or with TextFieldDialog
), ValidityWidget
, ResendCodeButton
, ResendButtonTimer
and SmsCodeField
. Use SmsCodeProvider
to have all dependencies provided and use its builder to easily create your page content.
An example of how to achieve the integrated SmsCodeProvider
functionality: #
Step 1. Create an implementation of SmsCodeService
:
class MyCustomSmsCodeService implements SmsCodeService {
@override
Future<dynamic> confirmPhoneCode(String code) async {
//send a request to the server to verify the code and return the response...
}
@override
Future<String> getFullPhoneNumber() async {
//fetch user's phone number...
}
@override
Future<String> updatePhoneNumber(String newNumber) async {
//update the user's number and return new one...
}
@override
Future<bool> sendConfirmationSms(String usersPhoneNumber) async {
//resend SMS code
}
@override
Future<int> getValidityTime(bool reset) async {
//how long the sent code will be valid...
}
@override
Future<int> getResendButtonThrottleTime(bool reset) async {
//time until next resend is available in seconds...
}
@override
Future<int> getCodeLength() async {
//fetch code length...
}
}
Step 2. Assemble SmsCodeProvider
and its subsequent widgets:
SmsCodeProvider(
sentNewCodeActivationTime: 2,
smsCodeService: MyCustomSmsCodeService(),
builder: (state) => Column(
children: [
SmsPhoneNumberField(
builder: (context, number, onChanged) => TextFieldDialog(
value: number,
onChanged: onChanged,
...
),
),
const SmsCodeField(),
const ValidityWidget(),
const ResendCodeButton(),
const ResendButtonTimer(),
],
),
),