JorgeCastilloPrz

final Animatable<double> _kStrokeHeadTween = CurveTween(
  curve: const Interval(0.0, 0.5, curve: Curves.fastOutSlowIn),
).chain(CurveTween(
  curve: const SawTooth(5),
));

JorgeCastilloPrz

class ArcPainter extends CustomPainter {
  // ...
  
  @override
  void paint(Canvas canvas, Size size) {
    if (backgroundColor != null) {
      final Paint backgroundPaint = Paint()
        ..color = backgroundColor
        ..strokeWidth = strokeWidth
        ..style = PaintingStyle.stroke;

JorgeCastilloPrz

class ArcPainter extends CustomPainter {
  // ...
  
  @override
  void paint(Canvas canvas, Size size) {
    if (backgroundColor != null) {
      final Paint backgroundPaint = Paint()
        ..color = backgroundColor
        ..strokeWidth = strokeWidth
        ..style = PaintingStyle.stroke;

JorgeCastilloPrz

class ArcPainter extends CustomPainter {
  ArcPainter({
    this.strokeWidth,
    this.backgroundColor,
    this.valueColor,
    this.headValue,
    this.tailValue,
    this.stepValue,
    this.rotationValue
  })

JorgeCastilloPrz

class ArcPainter extends CustomPainter {
  ArcPainter({
    this.strokeWidth,
    this.backgroundColor,
    this.valueColor,
    this.headValue,
    this.tailValue,
    this.stepValue,
    this.rotationValue
  })

JorgeCastilloPrz

package com.data.instances

import com.data.Repository
import com.domain.Group
import com.domain.User

extension class GroupRepository(with val userRepository: Repository<User>) : Repository<Group> {
  override fun loadAll(): List<Group> {
    return listOf(Group(userRepository.loadAll()))
  }

JorgeCastilloPrz

Exploring Material Components

Initial thoughts

Not long ago a new version of the Material Design Guidelines was published by Google, and that came along with enhanced support for integration of the principles to the community. This included other interesting resources like some fancy sample projects mimicking real world apps called Material Studies, a brand new Sketch plugin for generating Material themes and styles, and a new Material Components library that intents to replace the old Design Support Library, among other initiatives.

As you probably have heard of, in terms of Android, Android Support Library 28 will be the last version deployed ever, and we'll move directly into the AndroidX APIs (JetPack) once for

JorgeCastilloPrz

object test {

  @JvmStatic
  fun main(args: Array<String>): Unit {
    val user1 = User(UserId("user1"))
    val user2 = User(UserId("user2"))
    val user3 = User(UserId("unknown user"))

    val deferredModuleAlt = Module(DeferredK.async())
    deferredModuleAlt.run {

JorgeCastilloPrz

override fun allTasksByUser(user: User): Kind<F, List<Task>> =
    async { callback: (Either<Throwable, List<Task>>) -> Unit ->
      Option.fromNullable(internetStorage[user]).fold(
        { callback(UserNotInRemoteStorage(user).left()) },
        { callback(it.right()) }
      )
    }

JorgeCastilloPrz

class RemoteDataSource<F>(A: Async<F>) : DataSource<F>, Async<F> by A {
  private val internetStorage: Map<User, List<Task>> =
    mapOf(User(UserId("user2")) to listOf(Task("Remote Task assigned to user2")))

  override fun allTasksByUser(user: User): Kind<F, List<Task>> =
    async { callback: (Either<Throwable, List<Task>>) -> Unit ->
      Option.fromNullable(internetStorage[user]).fold(
        { callback(UserNotInRemoteStorage(user).left()) },
        { callback(it.right()) }
      )