private ITimeInterpolator GetAndroidInterpolator(
EasingFunction ease)
{
ITimeInterpolator androidEase = null;
if (null != ease)
{
var cubicEase = ease as CubicEase;
var elasticEase = ease as SpringEase;
if (null != cubicEase)
{
if (ease.EasingMode == EasingMode.EaseIn)
{
androidEase = new AccelerateInterpolator(1.5f);
}
else if (ease.EasingMode == EasingMode.EaseOut)
{
androidEase = new DecelerateInterpolator(1.5f);
}
else if (ease.EasingMode == EasingMode.EaseInOut)
{
// TODO: A custom interpolator. This is actually a circular ease, not a cubic ease-in-out
androidEase = new AccelerateDecelerateInterpolator();
}
else
{
throw new NotSupportedException("Unsupported easing mode.");
}
}
else if (null != elasticEase)
{
// TODO: Custom interpolators
if (ease.EasingMode == EasingMode.EaseIn)
{
androidEase = new BounceInterpolator();
}
else if (ease.EasingMode == EasingMode.EaseOut)
{
androidEase = new BounceInterpolator();
}
else if (ease.EasingMode == EasingMode.EaseInOut)
{
androidEase = new BounceInterpolator();
}
else
{
throw new NotSupportedException("Unsupported easing mode.");
}
}
else
{
throw new NotSupportedException("Unsupported easing function.");
}
}
return(androidEase);
}
/// <summary>
/// Initializes the recycler view.
/// </summary>
private void Init()
{
SetLayoutManager(new LinearLayoutManager(Context));
touchState = ETouchState.None;
viewConfig = ViewConfiguration.Get(Context);
openInterpolator = new BounceInterpolator();
closeInterpolator = new BounceInterpolator();
swipeDirection = EDirection.Left;
swipingEnabled = true;
}
//
// Marker related listeners.
//
public bool OnMarkerClick(Marker marker)
{
// This causes the marker at Perth to bounce into position when it is clicked.
if (marker.Equals(mPerth))
{
Handler handler = new Handler();
long start = SystemClock.UptimeMillis();
Projection proj = mMap.Projection;
Point startPoint = proj.ToScreenLocation(PERTH);
startPoint.Offset(0, -100);
LatLng startLatLng = proj.FromScreenLocation(startPoint);
long duration = 1500;
IInterpolator interpolator = new BounceInterpolator();
Runnable run = null;
run = new Runnable(delegate {
long elapsed = SystemClock.UptimeMillis() - start;
float t = interpolator.GetInterpolation((float)elapsed / duration);
double lng = t * PERTH.Longitude + (1 - t) * startLatLng.Longitude;
double lat = t * PERTH.Latitude + (1 - t) * startLatLng.Latitude;
marker.Position = (new LatLng(lat, lng));
if (t < 1.0)
{
// Post again 16ms later.
handler.PostDelayed(run, 16);
}
});
handler.Post(run);
}
// We return false to indicate that we have not consumed the event and that we wish
// for the default behavior to occur (which is for the camera to move such that the
// marker is centered and for the marker's info window to open, if it has one).
return(false);
}
private void AnimateTopLayer(float percent, bool force = false)
{
if (!canAnimate)
{
return;
}
if (height <= 0)
{
height = (float)topLayer.MeasuredHeight;
if (height <= 0)
{
return;
}
}
canAnimate = false;
var start = animation == null ? -height : lastY;
var time = 300;
IInterpolator interpolator;
if (percent < 0)
{
percent = 0;
}
else if (percent > 100)
{
percent = 100;
}
lastY = -height * (percent / 100F);
if ((int)lastY == (int)start && !force)
{
canAnimate = true;
return;
}
//is new so do bound, else linear
if (fullAnimation || !Utils.IsSameDay)
{
interpolator = new BounceInterpolator();
time = 3000;
fullAnimation = false;
}
else
{
interpolator = new LinearInterpolator();
}
animation = new TranslateAnimation(Dimension.Absolute, 0,
Dimension.Absolute, 0,
Dimension.Absolute, start,
Dimension.Absolute, lastY);
animation.Duration = time;
animation.Interpolator = interpolator;
animation.AnimationEnd += (object sender, Animation.AnimationEndEventArgs e) => {
canAnimate = true;
};
animation.FillAfter = true;
topLayer.StartAnimation(animation);
if (topLayer.Visibility != Android.Views.ViewStates.Visible)
{
topLayer.Visibility = Android.Views.ViewStates.Visible;
}
}
