public override bool OnTouchEvent(MotionEvent e)
{
if (e.PointerCount == 0 || Element == null)
{
return(false);
}
var scale = Element.Width / Width;
var touchInfo = new List <Point>();
var coord = new MotionEvent.PointerCoords();
e.GetPointerCoords(0, coord);
var point = new Point(coord.X * scale, coord.Y * scale);
// Handle touch actions
switch (e.Action)
{
case MotionEventActions.Down:
Element.OnTouchesBegan(point);
break;
case MotionEventActions.Up:
Element.OnTouchesEnded(point);
break;
//TODO add more action types
}
return(true);
}
public bool OnTouch(View v, MotionEvent e)
{
switch (e.Action)
{
case MotionEventActions.Down:
_parent._isTouching = true;
break;
case MotionEventActions.Move:
var pointerCoords = new MotionEvent.PointerCoords();
e.GetPointerCoords(0, pointerCoords);
_parent._position = new Vector2(pointerCoords.X, pointerCoords.Y);
break;
case MotionEventActions.Up:
_parent._isTouching = false;
break;
default:
return(false);
}
// TODO: Not sure if this should be called here or somewhere else
_parent.Update();
return(true);
}
public static Point[] GetRawTouches(MotionEvent current)
{
var result = new Point[current.PointerCount];
/*
* // second point is jumps around a lot
* if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.Q)
* {
* for (int i = 0; i < current.PointerCount; i++)
* {
* var x = current.GetRawX(i) / Display.Scale;
* var y = current.GetRawY(i) / Display.Scale;
* var point = new Point(x, y);
* result[i] = point;
* }
* if (result.Length>1)
* System.Diagnostics.Debug.WriteLine("p0["+result[0].ToString("N2")+"] p1["+result[1].ToString("N2")+"]");
*
* }
* else
* {
*/
var offsetX = current.RawX / Display.Scale - current.GetX();
var offsetY = current.RawY / Display.Scale - current.GetY();
MotionEvent.PointerCoords touch = new MotionEvent.PointerCoords();
for (int i = 0; i < current.PointerCount; i++)
{
current.GetPointerCoords(i, touch);
var point = new Point(touch.X + offsetX, touch.Y + offsetY);
result[i] = point;
}
//}
return(result);
}
public override bool OnTouchEvent(MotionEvent e)
{
//System.Diagnostics.Debug.WriteLine("=============================================================");
//System.Diagnostics.Debug.WriteLine("NativeGestureDetector.OnTouchEvent e.Action=[" + e.Action + "]");
bool handled = base.OnTouchEvent(e);
//System.Diagnostics.Debug.WriteLine("NativeGestureDetector.OnTouchEvent handled=" + handled);
if (e.PointerCount > 1 && _listener != null)
{
// multi point gesture ?
bool[] valid = new bool[6];
MotionEvent.PointerCoords[] coords = new MotionEvent.PointerCoords[6];
for (int i = 0; i < Math.Min(e.PointerCount, 6); i++)
{
coords[i] = new MotionEvent.PointerCoords();
var index = e.FindPointerIndex(i);
if (index > -1 && index < 6)
{
valid[index] = true;
e.GetPointerCoords(index, coords[i]);
if (_lastCoords != null && _lastCoords[i] != null)
{
_avgCoords[i].X = (float)((coords[i].X + _lastCoords[i].X) / 2.0);
_avgCoords[i].Y = (float)((coords[i].Y + _lastCoords[i].Y) / 2.0);
}
_lastCoords = coords;
}
}
if (e.Action == MotionEventActions.Down || e.Action == MotionEventActions.Pointer1Down || e.Action == MotionEventActions.Pointer2Down)
{
handled = handled || _listener.OnMultiDown(e, _lastCoords);
}
else if (e.Action == MotionEventActions.Move)
{
handled = handled || _listener.OnMultiMove(e, _avgCoords);
}
else if (e.Action == MotionEventActions.Cancel || e.Action == MotionEventActions.Up || e.Action == MotionEventActions.Pointer1Up || e.Action == MotionEventActions.Pointer2Up)
{
handled = handled || _listener.OnMultiUp(e, _avgCoords);
_lastCoords = null;
}
}
// the following line was once needed but now it seems to cause double "UPS" to be called when used with Bc3.Forms.KeypadButton;
//else if (e.ActionMasked == MotionEventActions.Up || e.ActionMasked == MotionEventActions.Pointer1Up || (e.Action == MotionEventActions.Down && _lastMotionEvent != null && _lastMotionEvent.Action == MotionEventActions.Down))
else if (e.ActionMasked == MotionEventActions.Up || e.ActionMasked == MotionEventActions.Pointer1Up)
{
_listener?.OnUp(e);
}
else if (e.Action == MotionEventActions.Cancel)
{
_listener?.Cancel(e);
}
_lastMotionEvent = e;
return(handled);
}
public override bool OnTouchEvent(MotionEvent e)
{
System.Diagnostics.Debug.WriteLine("NativeGestureDetector.OnTouchEvent e.Action=[" + e.Action + "]");
bool handled = base.OnTouchEvent(e);
//System.Diagnostics.Debug.WriteLine("NativeGestureDetector.OnTouchEvent handled=" + handled);
if (e.PointerCount > 1 && _listener != null)
{
// multi point gesture ?
bool[] valid = new bool[6];
MotionEvent.PointerCoords[] coords = null;
coords = new MotionEvent.PointerCoords[6];
for (int i = 0; i < Math.Min(e.PointerCount, 6); i++)
{
coords[i] = new MotionEvent.PointerCoords();
var index = e.FindPointerIndex(i);
if (index > -1 && index < 6)
{
valid[index] = true;
e.GetPointerCoords(index, coords[i]);
if (_lastCoords != null && _lastCoords[i] != null)
{
_avgCoords[i].X = (float)((coords[i].X + _lastCoords[i].X) / 2.0);
_avgCoords[i].Y = (float)((coords[i].Y + _lastCoords[i].Y) / 2.0);
}
_lastCoords = coords;
}
}
if (e.Action == MotionEventActions.Down || e.Action == MotionEventActions.Pointer1Down || e.Action == MotionEventActions.Pointer2Down)
{
handled = handled || _listener.OnMultiDown(e, _lastCoords);
}
else if (e.Action == MotionEventActions.Move)
{
handled = handled || _listener.OnMultiMove(e, _avgCoords);
}
else if (e.Action == MotionEventActions.Cancel || e.Action == MotionEventActions.Up || e.Action == MotionEventActions.Pointer1Up || e.Action == MotionEventActions.Pointer2Up)
{
handled = handled || _listener.OnMultiUp(e, _avgCoords);
_lastCoords = null;
}
}
else if (e.ActionMasked == MotionEventActions.Up || e.ActionMasked == MotionEventActions.Pointer1Up)
{
_listener?.OnUp(e);
}
else if (e.Action == MotionEventActions.Cancel)
{
_listener?.Cancel();
}
return(handled);
}
public override bool OnTouchEvent(MotionEvent e)
{
if (e.Action == MotionEventActions.Down)
{
if (!IsEnabled)
{
return(base.OnTouchEvent(e));
}
try
{
MotionEvent.PointerCoords pointReal = new MotionEvent.PointerCoords();
e.GetPointerCoords(0, pointReal);
NGraphics.Point point;
if (IsTitleOnTop)
{
point = new NGraphics.Point(pointReal.X, pointReal.Y + textHeight);
}
else
{
point = new NGraphics.Point(pointReal.X, pointReal.Y - textHeight);
}
if (Center.HasValue && RadiusAll.HasValue)
{
double selectedRadian = RadianOfPoint(point);
double sumRadian = 0.0;
foreach (var eachSegment in ListItems)
{
if (sumRadian <= selectedRadian && selectedRadian <= sumRadian + eachSegment.Radian)
{
eachSegment.IsSelected = true;
SelectedItem = eachSegment;
ItemSelected?.Invoke(this, eachSegment);
}
sumRadian += eachSegment.Radian;
}
}
}
// Analysis disable once EmptyGeneralCatchClause
catch (Exception exc)
{
#if DEBUG
throw;
#endif
}
}
return(base.OnTouchEvent(e));
}
/// <Docs>The motion event.</Docs>
/// <returns>To be added.</returns>
/// <para tool="javadoc-to-mdoc">Implement this method to handle touch screen motion events.</para>
/// <format type="text/html">[Android Documentation]</format>
/// <since version="Added in API level 1"></since>
/// <summary>
/// Raises the touch event event.
/// </summary>
/// <param name="e">E.</param>
public override bool OnTouchEvent(MotionEvent e)
{
var scale = Element.Width / Width;
var touchInfo = new List <NGraphics.Point>();
for (var i = 0; i < e.PointerCount; i++)
{
var coord = new MotionEvent.PointerCoords();
e.GetPointerCoords(i, coord);
touchInfo.Add(new NGraphics.Point(coord.X * scale, coord.Y * scale));
}
var result = false;
// Handle touch actions
switch (e.Action)
{
case MotionEventActions.Down:
if (Element != null)
{
result = Element.TouchesBegan(touchInfo);
}
break;
case MotionEventActions.Move:
if (Element != null)
{
result = Element.TouchesMoved(touchInfo);
}
break;
case MotionEventActions.Up:
if (Element != null)
{
result = Element.TouchesEnded(touchInfo);
}
break;
case MotionEventActions.Cancel:
if (Element != null)
{
result = Element.TouchesCancelled(touchInfo);
}
break;
}
return(result);
}
public static Point[] GetTouches(MotionEvent current, Android.Views.View view, Listener listener)
{
int pointerCount = current.PointerCount;
var pointerCoords = new MotionEvent.PointerCoords[pointerCount];
using (var pointerCoord = new MotionEvent.PointerCoords())
{
for (int i = 0; i < pointerCount; i++)
{
current.GetPointerCoords(i, pointerCoord);
pointerCoords[i] = new MotionEvent.PointerCoords(pointerCoord);
}
}
return(GetTouches(pointerCoords, view, listener));
}
public static Point[] GetTouches(MotionEvent current, Android.Views.View view, int[] startLocation)
{
//System.Diagnostics.Debug.WriteLine("c0=["+current.GetX()+","+current.GetY()+"]");
int[] viewLocation = { 0, 0 };
view?.GetLocationInWindow(viewLocation);
var pointerCoords = new MotionEvent.PointerCoords();
int pointerCount = current.PointerCount;
var array = new Point[pointerCount];
for (int i = 0; i < pointerCount; i++)
{
current.GetPointerCoords(i, pointerCoords);
array[i] = DIP.ToPoint((double)(pointerCoords.X + viewLocation[0] - startLocation[0]), (double)(pointerCoords.Y + viewLocation[1] - startLocation[1]));
//System.Diagnostics.Debug.WriteLine ("i=["+i+"] pc=["+pointerCoords.X+", "+pointerCoords.Y+"] a=["+array[i]+"]");
}
return(array);
}
public override bool OnTouchEvent(MotionEvent e)
{
base.OnTouchEvent(e);
switch (e.ActionMasked)
{
case MotionEventActions.Down:
{
int id = e.GetPointerId(0);
var start = new MotionEvent.PointerCoords();
e.GetPointerCoords(id, start);
coords.Add(id, start);
return(true);
}
case MotionEventActions.Move:
{
for (int index = 0; index < e.PointerCount; index++)
{
var id = e.GetPointerId(index);
float x = e.GetX(index);
float y = e.GetY(index);
drawCanvas.DrawLine(coords[id].X, coords[id].Y, x, y, drawPaint);
coords[id].X = x;
coords[id].Y = y;
}
Invalidate();
return(true);
}
case MotionEventActions.Up:
{
int id = e.GetPointerId(0);
coords.Remove(id);
return(true);
}
default:
return(false);
}
}
public bool OnTouch(View v, MotionEvent e)
{
switch (e.Action)
{
case MotionEventActions.Down:
_parent._isTouching = true;
break;
case MotionEventActions.Move:
var pointerCoords = new MotionEvent.PointerCoords();
e.GetPointerCoords(0, pointerCoords);
_parent._position = new Vector2(pointerCoords.X, pointerCoords.Y);
break;
case MotionEventActions.Up:
_parent._isTouching = false;
break;
default:
return(false);
}
return(true);
}
public void GetPointerCoords(int pointerIndex, MotionEvent.PointerCoords outPointerCoords)
{
MotionEvent.GetPointerCoords(pointerIndex, outPointerCoords);
}
public override bool OnTouchEvent(MotionEvent e)
{
// Get current position of pointer at index 0.
// This will be the first pointer down and the last pointer up even if not the same
System.Drawing.PointF curr = new System.Drawing.PointF(e.GetX(), e.GetY());
switch (e.Action)
{
case MotionEventActions.PointerDown:
pointer2Index = 1;
break;
case MotionEventActions.Down:
// Set the current box and add it to the List<Box> mBoxes
if (mCurrentBox == null)
{
mCurrentBox = new Box(curr, e.GetPointerId(0));
mBoxes.Add(mCurrentBox);
}
break;
case MotionEventActions.Pointer2Down:
// Handle 2nd touch. Set the start point of the rotation
if (mRotationStart == null)
{
// Get coordinates of pointer 2
MotionEvent.PointerCoords pCoords = new MotionEvent.PointerCoords();
e.GetPointerCoords(1, pCoords);
// Set the starting coordinates for the rotation
mRotationStart = new Box(new System.Drawing.PointF(pCoords.X, pCoords.Y), e.GetPointerId(1));
mInitialRotation = mCurrentBox.Rotation;
pointer2Index = 1;
}
break;
case MotionEventActions.Move:
// Handle first pointer move, set end point for rectangle
if (mCurrentBox != null && mCurrentBox.PointerId == e.GetPointerId(0))
{
mCurrentBox.Current = curr;
}
// Handle second pointer move, set rotation amount
if (mRotationStart != null && mRotationStart.PointerId == e.GetPointerId(pointer2Index))
{
// Get coordinates of pointer 2
MotionEvent.PointerCoords pCoords = new MotionEvent.PointerCoords();
e.GetPointerCoords(pointer2Index, pCoords);
// Set the rotation of the box to the difference between the origin of mRotation and the current position of pointer 2
mCurrentBox.Rotation = mInitialRotation + pCoords.Y - mRotationStart.Origin.Y;
}
Invalidate();
break;
case MotionEventActions.Pointer2Up:
mRotationStart = null;
break;
case MotionEventActions.PointerUp:
pointer2Index = 0;
break;
case MotionEventActions.Up:
mCurrentBox = null;
mRotationStart = null;
break;
case MotionEventActions.Cancel:
mCurrentBox = null;
mRotationStart = null;
break;
}
return(true);
}
public override bool OnTouchEvent(MotionEvent e)
{
switch (e.ActionMasked)
{
case MotionEventActions.Down:
{
int id = e.GetPointerId(0);
var start = new MotionEvent.PointerCoords();
e.GetPointerCoords(id, start);
koordinatlar.Add(id, start);
return(true);
}
case MotionEventActions.PointerDown:
{
int id = e.GetPointerId(e.ActionIndex);
var start = new MotionEvent.PointerCoords();
e.GetPointerCoords(id, start);
koordinatlar.Add(id, start);
return(true);
}
case MotionEventActions.Move:
{
for (int index = 0; index < e.PointerCount; index++)
{
var id = e.GetPointerId(index);
float x = e.GetX(index);
float y = e.GetY(index);
cizimAlani.DrawLine(koordinatlar[id].X, koordinatlar[id].Y, x, y, cizilenResim);
koordinatlar[id].X = x;
koordinatlar[id].Y = y;
CizimBasladi?.Invoke(this, EventArgs.Empty);
}
Invalidate();
return(true);
}
case MotionEventActions.PointerUp:
{
int id = e.GetPointerId(e.ActionIndex);
koordinatlar.Remove(id);
return(true);
}
case MotionEventActions.Up:
{
int id = e.GetPointerId(0);
koordinatlar.Remove(id);
return(true);
}
default:
return(false);
}
}