void Gesture_OnAction (BaseGestureRecognizer recgonizer, GestureRecognizerState state)
{
var panGesture = recgonizer as PanGestureRecognizer;
Point translation = panGesture.GetTranslationInView (MainLayout);
Point velocity = panGesture.GetVelocityInView (MainLayout);
panGesture.SetTranslationInView (new Point (0, 0), MainLayout);
Debug.WriteLine ("GESTURE STATE " + state + " trans " + translation);
switch (panGesture.State) {
case GestureRecognizerState.Began:
break;
case GestureRecognizerState.Changed:
if (recgonizer.View == ForegroundContent) {
_contentBounds.X += translation.X;
_contentBounds.Y = 0;
ForegroundContent.Layout (_contentBounds);
}
break;
case GestureRecognizerState.Cancelled:
case GestureRecognizerState.Ended:
case GestureRecognizerState.Failed:
_contentBounds.X = (_contentBounds.X > -(MainLayout.Width / 4)) ? 0 : -(MainLayout.Width / 2);
ForegroundContent.LayoutTo (_contentBounds);
break;
case GestureRecognizerState.Possible:
default:
break;
}
}
void OnAction(BaseGestureRecognizer recognizer, GestureRecognizerState state)
{
var panRecognizer = recognizer as PanGestureRecognizer;
var view = recognizer.View;
if (state == GestureRecognizerState.Began) {
_startBounds = recognizer.View.Bounds;
Debug.WriteLine ("START " + _startBounds);
}
if (state == GestureRecognizerState.Changed) {
var message = "PAN " + recognizer + "\n";
message += "POS: " + recognizer.LocationInView (view.ParentView);
var translation = panRecognizer.GetTranslationInView (view.ParentView);
// message += "touches: " + recognizer.NumberOfTouches + ", velocity: " + velocity;
message += ", translation: " + translation;
var bounds = new Rectangle (view.X + translation.X, view.Y + translation.Y, view.Width, view.Height);
message += ", vb: " + bounds;
_startBounds.X += translation.X;
_startBounds.Y += translation.Y;
Debug.WriteLine ("MOVE " + bounds);
Device.BeginInvokeOnMainThread (() => {
Label2.Layout (bounds);
});
OutputLabel.Text = message;
}
}
public void RemoveRecognizer(BaseGestureRecognizer recognizer)
{
NativeView.RemoveGestureRecognizer(NativeRecognizer);
NativeRecognizer.ShouldRecognizeSimultaneously -= _NativeRecognizer_ShouldRecognizeSimultaneously;
NativeRecognizer.ShouldBegin -= _NativeRecognizer_ShouldBegin;
NativeRecognizer = null;
recognizer.NativeGestureRecognizer = null;
}
private static void ProcessGestureRecognizer(this View view, BaseGestureRecognizer recognizer)
{
if (recognizer.NativeGestureRecognizer == null)
{
recognizer.View = view;
Factory.AddNativeGestureRecognizerToRecgonizer(recognizer);
}
}
private static void ProcessGestureRecognizer (this View view, BaseGestureRecognizer recognizer)
{
if (recognizer.NativeGestureRecognizer == null) {
recognizer.View = view;
Factory.AddNativeGestureRecognizerToRecgonizer (recognizer);
}
}
void OnAction (BaseGestureRecognizer recognizer, GestureRecognizerState state)
{
var swipeRecognizer = recognizer as SwipeGestureRecognizer;
var view = recognizer.View;
var message = "SWIPE " + recognizer + "\n";
message += "POS: " + recognizer.LocationInView (view.ParentView);
message += "touches: " + recognizer.NumberOfTouches + ", direction: " + swipeRecognizer.Direction;
OutputLabel.Text = message;
}
void OnAction (BaseGestureRecognizer recognizer, GestureRecognizerState state)
{
var tapRecognizer = recognizer as TwinTechs.Gestures.LongPressGestureRecognizer;
var view = recognizer.View;
var message = recognizer + "\n";
message += "POS: " + recognizer.LocationInView (view);
message += "PARENT POS: " + recognizer.LocationInView (view.ParentView);
message += "touches: " + recognizer.NumberOfTouches;// + ", taps required: " + tapRecognizer.NumberOfTapsRequired;
OutputLabel.Text = message;
}
void OnAction (BaseGestureRecognizer recognizer, GestureRecognizerState state)
{
var tapRecognizer = recognizer as TwinTechs.Gestures.TapGestureRecognizer;
var view = recognizer.View;
var message = string.Format ("POS: {0} \n", recognizer.LocationInView (view).PrettyPrint ());
message += string.Format ("PARENT POS: {0} \n", recognizer.LocationInView (view.ParentView).PrettyPrint ());
message += string.Format ("PARENT.PARENT POS: {0} \n", recognizer.LocationInView (view.ParentView.ParentView).PrettyPrint ());
message += string.Format ("PAGE POS: {0} \n", recognizer.LocationInView (this).PrettyPrint ());
OutputLabel.Text = message;
}
public void AddRecognizer(BaseGestureRecognizer recognizer)
{
Recognizer = recognizer;
var renderer = Recognizer.View.GetRenderer ();
if (renderer == null) {
Recognizer.View.PropertyChanged += Recognizer_View_PropertyChanged;
} else {
InitializeNativeRecognizer ();
}
}
private static void ProcessGestureRecognizer(this View view, BaseGestureRecognizer recognizer)
{
if (recognizer.NativeGestureRecognizer == null)
{
recognizer.View = view;
var nativeRecongizer = Factory.CreateNativeGestureRecognizer(recognizer);
nativeRecongizer.AddRecognizer(recognizer);
recognizer.NativeGestureRecognizer = nativeRecongizer;
}
}
private static void ProcessGestureRecognizer(this View view, BaseGestureRecognizer recognizer)
{
if (recognizer.NativeGestureRecognizer == null) {
recognizer.View = view;
var nativeRecongizer = Factory.CreateNativeGestureRecognizer (recognizer);
nativeRecongizer.AddRecognizer (recognizer);
recognizer.NativeGestureRecognizer = nativeRecongizer;
}
}
void OnAction (BaseGestureRecognizer recognizer, GestureRecognizerState state)
{
var panRecognizer = recognizer as PanGestureRecognizer;
var view = recognizer.View;
var message = "PAN " + recognizer + "\n";
message += "ParentPOS: " + recognizer.LocationInView (view.ParentView);
message += "POS: " + recognizer.LocationInView (view);
var translation = panRecognizer.GetTranslationInView (view.ParentView);
var velocity = panRecognizer.GetVelocityInView (view.ParentView);
message += ", translation: " + translation;
var bounds = new Rectangle (view.X + velocity.X, view.Y + velocity.Y, view.Width, view.Height);
message += ", vb: " + bounds;
OutputLabel.Text = message;
}
public void AddRecognizer(BaseGestureRecognizer recognizer)
{
Recognizer = recognizer;
var renderer = Recognizer.View.GetRenderer();
if (renderer == null)
{
Recognizer.View.PropertyChanged += Recognizer_View_PropertyChanged;
}
else
{
InitializeNativeRecognizer();
}
}
void Gesture_OnAction (BaseGestureRecognizer recgonizer, GestureRecognizerState state)
{
if (recgonizer.View != MediaItemsListView) {
return;
}
var panGesture = recgonizer as PanGestureRecognizer;
Point translation = panGesture.GetTranslationInView (MainLayout);
Point velocity = panGesture.GetVelocityInView (MainLayout);
panGesture.SetTranslationInView (new Point (0, 0), MainLayout);
switch (panGesture.State) {
case GestureRecognizerState.Began:
// MediaItemsListView.IsEnabled = false;
break;
case GestureRecognizerState.Changed:
var newY = _currentGridY + translation.Y;
newY = Math.Max (0, newY);
newY = Math.Min (400, newY);
Debug.WriteLine ("newY {0} _currentGridY {1} _scrollPosition{2}", newY, _currentGridY, _scrollPosition);
bool willMoveList = false;
if (newY != _currentGridY) {
willMoveList = _currentGridY > 0 || _scrollPosition <= 0 &&
newY > 0 && newY < Height - 100;
if (willMoveList) {
_currentGridY = newY;
var bounds = MediaItemsListView.Bounds;
bounds.Y = _currentGridY;
MediaItemsListView.Layout (bounds);
}
MediaItemsListView.IsScrollEnabled = !willMoveList;
} else {
MediaItemsListView.IsScrollEnabled = true;
Debug.WriteLine ("no move " + MediaItemsListView.IsScrollEnabled);
}
break;
case GestureRecognizerState.Cancelled:
case GestureRecognizerState.Ended:
case GestureRecognizerState.Failed:
MediaItemsListView.IsScrollEnabled = true;
if (_currentGridY != 0 && _currentGridY != 400) {
_currentGridY = _currentGridY > 200 ? 400 : 0;
MediaItemsListView.LayoutTo (new Rectangle (0, _currentGridY, Width, Height));
}
break;
default:
break;
}
}
public void RemoveRecognizer(BaseGestureRecognizer recognizer)
{
if (recognizer.NativeGestureRecognizer != null)
{
var coordinator = recognizer.NativeGestureCoordinator as NativeGestureCoordinator;
if (coordinator == null)
{
throw new InvalidOperationException("the recognizer's native gesture coordinator is null, or an invalid type");
}
coordinator.RemoveRecognizer((BaseNativeGestureRecognizer)recognizer.NativeGestureRecognizer);
if (!coordinator.HasRecognizers)
{
coordinator.Destroy();
recognizer.NativeGestureCoordinator = null;
}
}
}
public void RemoveRecognizer(BaseGestureRecognizer recognizer)
{
if (IsGestureInitialized)
{
Listener = GetMultiCastListener();
if (Listener == null)
{
throw new IllegalStateException("the view's multi caster was removed before removing a listener");
}
Listener.RemoveListener(this);
if (!Listener.HasListeners)
{
NativeView.SetOnTouchListener(null);
}
NativeView.SetOnTouchListener(null);
NativeGestureDetector = null;
IsGestureInitialized = false;
}
}
void Gesture_OnAction (BaseGestureRecognizer recgonizer, GestureRecognizerState state)
{
string message = "";
var panGesture = recgonizer as PanGestureRecognizer;
Point translation = panGesture.GetTranslationInView (MainLayout);
Point velocity = panGesture.GetVelocityInView (MainLayout);
panGesture.SetTranslationInView (new Point (0, 0), MainLayout);
// MyLabel.Text = "PAN " + recognizer.LocationInView (view.ParentView);
// Debug.WriteLine ("PAN " + panGesture);
// Debug.WriteLine ("location " + panGesture.LocationInView (this));
switch (panGesture.State) {
case GestureRecognizerState.Began:
message += "BEGAN ";
message += "POS: " + recgonizer.LocationInView (MainLayout);
break;
case GestureRecognizerState.Changed:
message += "CHANGED ";
message += ", translation: " + translation;
message += ", velocity: " + velocity;
message += "POS: \n" + recgonizer.LocationInView (panGesture.View).PrettyPrint ();
message += "PARENT POS: \n" + recgonizer.LocationInView (MainLayout).PrettyPrint ();
if (recgonizer.View == Box) {
message += ", MOVING VIEW";
_boxBounds.X += translation.X;
_boxBounds.Y += translation.Y;
Box.Layout (_boxBounds);
}
break;
case GestureRecognizerState.Cancelled:
case GestureRecognizerState.Ended:
case GestureRecognizerState.Failed:
message += "FINISHED ";
break;
case GestureRecognizerState.Possible:
default:
break;
}
OutputLabel.Text = message;
}
void Gesture_OnAction (BaseGestureRecognizer recgonizer, GestureRecognizerState state)
{
if (recgonizer.View != _contentPage.VideoPlayerView) {
return;
}
var panGesture = recgonizer as PanGestureRecognizer;
Point translation = panGesture.GetTranslationInView (MainLayout);
Point velocity = panGesture.GetVelocityInView (MainLayout);
panGesture.SetTranslationInView (new Point (0, 0), MainLayout);
switch (panGesture.State) {
case GestureRecognizerState.Began:
break;
case GestureRecognizerState.Changed:
var newY = _contentBounds.Y + translation.Y;
if (newY > 0 && newY < Height - _contentPage.MinimumHeightRequest) {
var minHeight = _contentPage.MinimumHeightRequest;
var minWidth = _contentPage.MinimumWidthRequest;
_contentBounds.Y = newY;
var complete = Math.Min (1, (Height - (_contentBounds.Y + minHeight)) / Height);
// Debug.WriteLine ("complete {0} newY {1} h{2}", complete, newY, Height);
var inverseCompletion = 1 - complete;
_contentBounds.X = (Width - minWidth) * inverseCompletion;
_contentBounds.Width = (minWidth) + ((Width - minWidth) * complete);
_contentBounds.Height = Math.Max (minHeight, (Height + minHeight) * complete);
PageContainer.Layout (_contentBounds);
}
break;
case GestureRecognizerState.Cancelled:
case GestureRecognizerState.Ended:
case GestureRecognizerState.Failed:
var isShowing = _contentBounds.Y < 200;
ToggleShowing (isShowing, true);
break;
default:
break;
}
}
bool OnGestureShouldBegin (BaseGestureRecognizer gestureRecognizer)
{
var shouldBegin = _currentGridY > 0 || _scrollPosition < 10;
Debug.WriteLine (">>>>>_currentGridY {0} _scrollPosition {1} shouldBegin{2}", _currentGridY, _scrollPosition, shouldBegin);
return shouldBegin;
}
public void RemoveRecognizer(BaseGestureRecognizer recognizer)
{
NativeView.RemoveGestureRecognizer(NativeRecognizer);
NativeRecognizer = null;
recognizer.NativeGestureRecognizer = null;
}
bool OnShouldBegin (BaseGestureRecognizer recognizer)
{
var panGestureRecognizer = recognizer as PanGestureRecognizer;
var translation = panGestureRecognizer.GetTranslationInView (recognizer.View.ParentView);
var moveX = Math.Abs (translation.X);
var moveY = Math.Abs (translation.Y);
return moveX > moveY;
}
public void RemoveRecognizer(BaseGestureRecognizer recognizer)
{
if (IsGestureInitialized) {
Listener = GetMultiCastListener ();
if (Listener == null) {
throw new IllegalStateException ("the view's multi caster was removed before removing a listener");
}
Listener.RemoveListener (this);
if (!Listener.HasListeners) {
NativeView.SetOnTouchListener (null);
}
NativeView.SetOnTouchListener (null);
NativeGestureDetector = null;
IsGestureInitialized = false;
}
}
/// <summary>
/// Removes the gesture recognizer. This is a temporary method while Xamarin don't expose any api
/// for us to hook into their gesture recognizers mechanism.
/// </summary>
/// <param name="view">View.</param>
/// <param name="recognizer">Recognizer.</param>
public static void RemoveGestureRecognizer(this View view, BaseGestureRecognizer recognizer)
{
// recognizer.NativeGestureRecognizer?.RemoveRecognizer (recognizer);
}
public void RemoveRecognizer(BaseGestureRecognizer recognizer)
{
var nativeRecognizer = recognizer.NativeGestureRecognizer as IBaseNativeGestureRecognizerImpl;
nativeRecognizer.RemoveRecognizer(recognizer);
}
void Gesture_OnAction (BaseGestureRecognizer recgonizer, GestureRecognizerState state)
{
var panGesture = recgonizer as PanGestureRecognizer;
Point translation = panGesture.GetTranslationInView (this);
panGesture.SetTranslationInView (new Point (0, 0), this);
// MyLabel.Text = "PAN " + recognizer.LocationInView (view.ParentView);
// Debug.WriteLine ("PAN " + panGesture);
// Debug.WriteLine ("location " + panGesture.LocationInView (this));
switch (panGesture.State) {
case GestureRecognizerState.Began:
break;
case GestureRecognizerState.Changed:
double newPosition = _contentView.X + translation.X;
var endWidth = _contentWidth;
Debug.WriteLine ("new pos " + newPosition + " endWidth " + endWidth);
if (newPosition >= ((-endWidth) - (Width / 2)) && (newPosition <= (Width / 2))) {
_contentView.Layout (GetBoundsWithX (newPosition));
}
break;
case GestureRecognizerState.Cancelled:
case GestureRecognizerState.Ended:
case GestureRecognizerState.Failed:
//scroll to page location, set index
double currentPage = (-_contentView.X) / Width;
Boolean isBehindHalfScreen = (currentPage - (int)currentPage) > 0.5;
if (isBehindHalfScreen && (currentPage + 1) < NumberOfPages) {
CurrentPageIndex = (int)(currentPage + 1);
} else {
CurrentPageIndex = (int)currentPage;
}
AnimateToPageIndex (CurrentPageIndex);
break;
case GestureRecognizerState.Possible:
default:
break;
}
}
/// <summary>
/// Removes the gesture recognizer. This is a temporary method while Xamarin don't expose any api
/// for us to hook into their gesture recognizers mechanism.
/// </summary>
/// <param name="view">View.</param>
/// <param name="recognizer">Recognizer.</param>
public static void RemoveGestureRecognizer(this View view, BaseGestureRecognizer recognizer)
{
// recognizer.NativeGestureRecognizer?.RemoveRecognizer (recognizer);
}
