olexale

public class AnimationNavigationControllerDelegate : UINavigationControllerDelegate
{
  private TransitionAnimator _animator = new TransitionAnimator();
  private int _id;

  public override IUIViewControllerAnimatedTransitioning GetAnimationControllerForOperation(UINavigationController navigationController, UINavigationControllerOperation operation, UIViewController fromViewController, UIViewController toViewController)
  {
    if (operation == UINavigationControllerOperation.Push)
    {
      var image = fromViewController.View.ViewWithTag(_id);

olexale

namespace BeatlesApp
{
  public class TagEffect : RoutingEffect
  {
    public TagEffect() : base("BeatlesApp.TagEffect") {}

    public static readonly BindableProperty TagProperty =
      BindableProperty.CreateAttached("Tag", typeof(int), typeof(TagEffect), 0, propertyChanged: OnTagChanged);

    public static int GetTag(BindableObject view)

olexale

[assembly: ExportRenderer(typeof(NavigationPage), typeof(AnimationNavigationRenderer))]
namespace BeatlesApp.iOS
{
  public class AnimationNavigationRenderer : Xamarin.Forms.Platform.iOS.NavigationRenderer
  {
    private AnimationNavigationControllerDelegate _delegate;

    public override void ViewDidLoad()
    {
      base.ViewDidLoad();

olexale

public class AnimationNavigationControllerDelegate : UINavigationControllerDelegate
{
  private TransitionAnimator _animator = new TransitionAnimator();

  public override IUIViewControllerAnimatedTransitioning GetAnimationControllerForOperation(UINavigationController navigationController, UINavigationControllerOperation operation, UIViewController fromViewController, UIViewController toViewController)
  {
    return _animator;
  }
}

olexale

public class TransitionAnimator : UIViewControllerAnimatedTransitioning
{
  private const double _duration = 0.5;

  public override void AnimateTransition(IUIViewControllerContextTransitioning transitionContext)
  {
    var containerView = transitionContext.ContainerView;
    var toView = transitionContext.GetViewFor(UITransitionContext.ToViewKey);

    containerView.AddSubview(toView);

olexale

class CounterStore : INotifyPropertyChanged
{
  private readonly CounterReducer reducer = new CounterReducer();
  private CounterState state;

  public CounterStore(CounterState initialState)
  {
    state = initialState;
  }

olexale

class CounterReducer
{
  public CounterState Reduce(CounterState state, object action)
  {
    switch (action)
    {
      case IncrementAction i:
        return ProcessIncrement(state);
      case DecrementAction d:
        return ProcessDecrement(state);

olexale

class IncrementAction { }
class DecrementAction { }

olexale

class CounterState
{ 
  public CounterState(int count) { Count = count; } 
  public int Count { get; }
}

olexale

#!/bin/sh
adb shell screencap -p | perl -pe 's/\x0D\x0A/\x0A/g' > screen.png