private async void PressBeganEffect(object sender, PositionEventArgs e)
{
lock (TapLocker)
_isTaped = false;
if (AnimationEffect == AnimationType.atScaling)
{
await this.ScaleTo(1 + (AnimationScale / 100), AnimationSpeed, Easing.CubicOut);
}
else if (AnimationEffect == AnimationType.atFlashingTap && !_animateFlashBox.IsVisible)
{
_animateFlashBox.TranslationX = e.PositionX - _mainContent.Width / 2;
_animateFlashBox.IsVisible = true;
_animateFlashBox.Animate(
"AnimateFlashBox",
t => t * _mainContent.Width,
x =>
{
_animateFlashBox.WidthRequest = x;
var delta = _mainContent.Width / 2 - Math.Abs(_animateFlashBox.TranslationX) - x / 2;
if (delta < 0)
{
if (_animateFlashBox.TranslationX < 0)
{
_animateFlashBox.TranslationX -= delta;
}
else
{
_animateFlashBox.TranslationX += delta;
}
}
},
16, AnimationSpeed, Easing.SinOut,
(x, y) =>
{
_animateFlashBox.WidthRequest = 1;
_animateFlashBox.IsVisible = false;
});
}
else if (AnimationEffect == AnimationType.atFlashing && !_animateFlashBox.IsVisible)
{
_animateFlashBox.TranslationX = 0;
_animateFlashBox.IsVisible = true;
_animateFlashBox.Animate(
"AnimateFlashBox",
t => t * _mainContent.Width,
x => _animateFlashBox.WidthRequest = x,
16, AnimationSpeed, Easing.SinOut,
(x, y) =>
{
_animateFlashBox.WidthRequest = 1;
_animateFlashBox.IsVisible = false;
});
}
}
public static async void AnimateBackground(BoxView boxViewBackground)
{
void Forward(double input) => boxViewBackground.AnchorY = (float)input;
void Backward(double input) => boxViewBackground.AnchorY = (float)input;
while (true)
{
boxViewBackground.Animate(name: "forward", callback: Forward, start: 0, end: 1, length: 4000, easing: Easing.SinIn);
await Task.Delay(6000);
boxViewBackground.Animate(name: "backward", callback: Backward, start: 1, end: 0, length: 4000, easing: Easing.SinIn);
await Task.Delay(6000);
}
}
public static void animatePin(Action <double> updateCallback, Action <double, bool> finishedAction, uint animationLength)
{
if (updateCallback == null)
{
return;
}
animatorView.Animate(
"pinAnimation",
updateCallback,
length: animationLength,
easing: Easing.Linear,
finished: finishedAction);
}
public async Task AnimationWithFinished()
{
var source = new TaskCompletionSource <bool>();
var view = new BoxView();
var animation = new Animation(v =>
{
view.Opacity = v;
}, 1, 0);
view.Animate("Fade", animation, finished: (a, b) => source.TrySetResult(true));
await source.Task;
Assert.AreEqual(0, view.Opacity);
}
private void HidePopup()
{
_background?.Animate("BackgroundFadeOut",
v => _background.Opacity = v, 0.8, 0,
finished: (x1, x2) =>
{
RootLayout.Children.Remove(_background);
_background = null;
});
_detailsPopupView?.Close(this, () =>
{
RootLayout.Children.Remove(_detailsPopupView);
_detailsPopupView = null;
});
}
#pragma warning disable 1998 // considered for removal
async Task Animate(BoxView box)
#pragma warning restore 1998
{
box.Animate("animate", d => d, d => { }, 100, 1);
}