protected override void OnAttached()
{
isCanTouch = Touch.GetIsEnabled(Element);
commandStartTap = Touch.GetStartTap(Element);
commandFinishTap = Touch.GetFinishTap(Element);
commandTap = Touch.GetTap(Element);
commandLongTap = Touch.GetLongTap(Element);
longTapLatency = Touch.GetLongTapLatency(Element);
gestureTap = new GestureTouchSam(OnTap);
gestureTap.MinimumPressDuration = 0;
gestureTap.ShouldReceiveTouch += (UIGestureRecognizer g, UITouch t) =>
{
return(true);
};
gestureTap.ShouldRecognizeSimultaneously += (UIGestureRecognizer g, UIGestureRecognizer t) =>
{
return(true);
};
if (commandLongTap != null)
{
TimerInit();
}
View.UserInteractionEnabled = true;
View.AddGestureRecognizer(gestureTap);
UpdateEffectColor();
}
protected override void OnAttached()
{
if (Touch.GetLongTap(Element) != null)
{
timer = new System.Timers.Timer();
timer.Elapsed += OnTimerEvent;
}
isEnabled = Touch.GetIsEnabled(Element);
View.Clickable = true;
View.LongClickable = true;
View.SoundEffectsEnabled = true;
viewOverlay = new FrameLayout(Container.Context)
{
LayoutParameters = new ViewGroup.LayoutParams(-1, -1),
Clickable = false,
Focusable = false,
};
Container.LayoutChange += ViewOnLayoutChange;
if (EnableRipple)
{
viewOverlay.Background = CreateRipple(color);
}
SetEffectColor();
View.Touch += OnTouch;
Container.AddView(viewOverlay);
viewOverlay.BringToFront();
}
private void OnRightTapped()
{
var cmd = Touch.GetLongTap(Element);
var param = Touch.GetLongTapParameter(Element);
if (cmd?.CanExecute(param) ?? false)
{
cmd.Execute(param);
}
}
private void OnRightTapped(object sender, Windows.UI.Xaml.Input.RightTappedRoutedEventArgs e)
{
Tap();
var cmd = Touch.GetLongTap(Element);
if (cmd?.CanExecute(Element.BindingContext) ?? false)
{
cmd.Execute(Element.BindingContext);
}
}
private void UpdateLongTapCommand()
{
var command = Touch.GetLongTap(Element);
TimerDispose();
if (command != null)
{
timer = new System.Timers.Timer();
timer.Elapsed += OnTimerEvent;
timer.Interval = Touch.GetLongTapLatency(Element);
timer.AutoReset = false;
}
}
private void LongTap()
{
var cmdLong = Touch.GetLongTap(Element);
var paramLong = Touch.GetLongTapParameter(Element);
if (cmdLong == null)
{
Tap();
return;
}
if (cmdLong.CanExecute(paramLong))
{
cmdLong.Execute(paramLong);
}
}
private void LongClickHandler()
{
SelectHandler();
var cmdLong = Touch.GetLongTap(Element);
if (cmdLong == null)
{
ClickHandler();
return;
}
if (cmdLong.CanExecute(Element.BindingContext))
{
cmdLong.Execute(Element.BindingContext);
}
}
protected override void OnElementPropertyChanged(System.ComponentModel.PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(e);
if (e.PropertyName == Touch.IsEnabledProperty.PropertyName)
{
isCanTouch = Touch.GetIsEnabled(Element);
}
else if (e.PropertyName == Touch.ColorProperty.PropertyName)
{
UpdateEffectColor();
}
else if (e.PropertyName == Touch.TapProperty.PropertyName)
{
commandTap = Touch.GetTap(Element);
}
else if (e.PropertyName == Touch.StartTapProperty.PropertyName)
{
commandStartTap = Touch.GetStartTap(Element);
}
else if (e.PropertyName == Touch.FinishTapProperty.PropertyName)
{
commandFinishTap = Touch.GetFinishTap(Element);
}
else if (e.PropertyName == Touch.LongTapProperty.PropertyName)
{
commandLongTap = Touch.GetLongTap(Element);
if (commandLongTap == null)
{
TimerDispose();
}
else
{
TimerInit();
}
}
else if (e.PropertyName == Touch.LongTapLatencyProperty.PropertyName)
{
longTapLatency = Touch.GetLongTapLatency(Element);
}
}
public override bool OnTouchEvent(MotionEvent e)
{
float x = e.RawX;
float y = e.RawY;
float internalX = e.GetX();
float internalY = e.GetY();
host.currentX = x;
host.currentY = y;
// Detect nestered gesture
if (nestedGesture != null)
{
nestedGesture.OnTouchEvent(e);
// Detect END for nestered gesture
if (e.Action == MotionEventActions.Cancel || e.Action == MotionEventActions.Up)
{
nestedGesture = null;
}
return(true);
}
// START
if (e.Action == MotionEventActions.Down)
{
if (!host.IsEnabled || isGestureProcessed)
{
return(true);
}
// Detect nested TouchSam gestures
var childs = host.GetNestedTouchs(view);
foreach (var item in childs)
{
if (host.IsViewInBounds(item.View, (int)x, (int)y))
{
nestedGesture = item.Gesture;
nestedGesture.OnTouchEvent(e);
return(true);
}
}
isGestureProcessed = true;
host.startX = x;
host.startY = y;
host.StartTap();
host.AnimationStart(internalX, internalY);
// Try start long tap timer
if (Touch.GetLongTap(host.Element) != null)
{
host.timer?.Stop();
host.timer?.Start();
}
}
// MOVE
else if (e.Action == MotionEventActions.Move || e.Action == MotionEventActions.Scroll)
{
if (!isGestureProcessed)
{
return(true);
}
float deltaX = Math.Abs(host.startX - x);
float deltaY = Math.Abs(host.startY - y);
if (deltaX > touchSlop || deltaY > touchSlop || !host.IsEnabled)
{
host.FinishTap();
host.AnimationEnd();
host.timer?.Stop();
isGestureProcessed = false;
}
}
// UP
else if (e.Action == MotionEventActions.Up || e.Action == MotionEventActions.Cancel)
{
if (host.IsDisposed || !isGestureProcessed)
{
return(true);
}
isGestureProcessed = false;
host.AnimationEnd();
host.FinishTap();
if (e.Action == MotionEventActions.Up && host.IsEnabled)
{
// Tap sound :)
view.PlaySoundEffect(SoundEffects.Click);
if (host.IsViewInBounds(view, (int)e.RawX, (int)e.RawY))
{
if (Touch.GetLongTap(host.Element) == null)
{
host.Tap();
}
else if (host.timer == null || host.timer.Enabled)
{
host.Tap();
}
}
}
host.timer?.Stop();
}
return(true);
}
private void OnTouch(object sender, View.TouchEventArgs args)
{
if (!isEnabled)
{
return;
}
//var x = args.Event.GetX();
//var y = args.Event.GetY();
//Console.Out.WriteLine($"x: {x}; y: {y} (action: {args.Event.Action.ToString()})");
motion = args.Event;
if (args.Event.Action == MotionEventActions.Down)
{
View.PlaySoundEffect(SoundEffects.Click);
// DOWN
if (EnableRipple)
{
ForceStartRipple(args.Event.GetX(), args.Event.GetY());
}
else
{
StartAnimation();
}
if (Touch.GetLongTap(Element) != null)
{
if (timer == null)
{
timer = new System.Timers.Timer();
timer.Elapsed += OnTimerEvent;
}
timer.Interval = Touch.GetLongTapLatency(Element);
timer.AutoReset = false;
timer.Start();
}
}
else
if (args.Event.Action == MotionEventActions.Up ||
args.Event.Action == MotionEventActions.Cancel ||
args.Event.Action == MotionEventActions.Outside)
{
args.Handled = true;
// UP
if (IsDisposed)
{
return;
}
if (EnableRipple)
{
ForceEndRipple();
}
else
{
TapAnimation(250, alpha, 0);
}
if (args.Event.Action == MotionEventActions.Up &&
IsViewInBounds((int)args.Event.RawX, (int)args.Event.RawY))
{
if (Touch.GetLongTap(Element) != null)
{
if (timer == null)
{
timer = new System.Timers.Timer();
timer.Elapsed += OnTimerEvent;
}
if (timer.Enabled)
{
SelectHandler();
ClickHandler();
}
}
else
{
SelectHandler();
ClickHandler();
}
}
timer?.Stop();
}
}