public void Show(float translationX, float translationY)
{
// Set FAB's translation
SetTranslation(translationX, translationY);
// Only use scale animation if FAB is hidden
if (Visibility != ViewStates.Visible) {
// Pivots indicate where the animation begins from
float pivotX = PivotX + translationX;
float pivotY = PivotY + translationY;
ScaleAnimation anim;
// If pivots are 0, that means the FAB hasn't been drawn yet so just use the
// center of the FAB
if (pivotX == 0 || pivotY == 0) {
anim = new ScaleAnimation(0, 1, 0, 1, Dimension.RelativeToSelf, 0.5f,
Dimension.RelativeToSelf, 0.5f);
} else {
anim = new ScaleAnimation(0, 1, 0, 1, pivotX, pivotY);
}
// Animate FAB expanding
anim.Duration = FAB_ANIM_DURATION;
anim.Interpolator = GetInterpolator();
StartAnimation(anim);
}
Visibility = ViewStates.Visible;
}
public void OnLayoutClicked(View view)
{
if (rectBackground != null) {
ScaleAnimation scaleAnimation = new ScaleAnimation (1, 0.7f, 1, 0.7f, Dimension.RelativeToSelf, 0.5f, Dimension.RelativeToSelf, 0.5f);
scaleAnimation.Duration = 300;
scaleAnimation.RepeatCount = 1;
scaleAnimation.RepeatMode = RepeatMode.Reverse;
rectBackground.StartAnimation (scaleAnimation);
}
if (roundBackground != null) {
roundBackground.Animate ().RotationBy (360).SetDuration (300).Start ();
}
}
public override void Hide()
{
// Only use scale animation if FAB is visible
if (Visibility == ViewStates.Visible) {
// Pivots indicate where the animation begins from
float pivotX = PivotX + TranslationX;
float pivotY = PivotY + TranslationY;
// Animate FAB shrinking
ScaleAnimation anim = new ScaleAnimation(1, 0, 1, 0, pivotX, pivotY);
anim.Duration = FAB_ANIM_DURATION;
anim.Interpolator = GetInterpolator();
StartAnimation(anim);
}
Visibility = ViewStates.Invisible;
}
private void MaximizeView(View view)
{
var animationSet = new AnimationSet(true)
{
Interpolator = new AccelerateDecelerateInterpolator(),
Duration = 500,
FillAfter = true
};
var scaleAnimation = new ScaleAnimation(1f, 1.25f, 1f, 1.25f, Dimension.RelativeToSelf, 0f,
Dimension.RelativeToSelf, 0f);
_selectedViewTop = view.Top;
_selectedViewLeft = view.Left;
var translateAnimation = new TranslateAnimation(Dimension.RelativeToSelf, 0, Dimension.Absolute, -view.Left,
Dimension.RelativeToSelf, 0, Dimension.Absolute, -view.Top + _addButton.Height);
animationSet.AddAnimation(scaleAnimation);
animationSet.AddAnimation(translateAnimation);
view.StartAnimation(animationSet);
}