protected override void OnSizeChanged(int w, int h, int oldw, int oldh)
{
base.OnSizeChanged(w, h, oldw, oldh);
// get width and height of navigation bar
// Navigation bar bounds (width & height)
mNavigationBarWidth = Width;
mNavigationBarHeight = Height;
differenceOfScreen = Height - tabHeight;
// the coordinates (x,y) of the start point before curve
//mFirstCurveStartPoint.Set((mNavigationBarWidth / 2) - (CURVE_CIRCLE_RADIUS * 2) - (CURVE_CIRCLE_RADIUS / 3), differenceOfScreen);
//// the coordinates (x,y) of the end point after curve
//mFirstCurveEndPoint.Set(mNavigationBarWidth / 2, CURVE_CIRCLE_RADIUS + (CURVE_CIRCLE_RADIUS / 4) + differenceOfScreen);
//// same thing for the second curve
//mSecondCurveStartPoint = mFirstCurveEndPoint;
//mSecondCurveEndPoint.Set((mNavigationBarWidth / 2) + (CURVE_CIRCLE_RADIUS * 2) + (CURVE_CIRCLE_RADIUS / 3), differenceOfScreen);
//// the coordinates (x,y) of the 1st control point on a cubic curve
//mFirstCurveControlPoint1.Set(mFirstCurveStartPoint.X + CURVE_CIRCLE_RADIUS + (CURVE_CIRCLE_RADIUS / 4), mFirstCurveStartPoint.Y);
//// the coordinates (x,y) of the 2nd control point on a cubic curve
//mFirstCurveControlPoint2.Set(mFirstCurveEndPoint.X - (CURVE_CIRCLE_RADIUS * 2) + CURVE_CIRCLE_RADIUS, mFirstCurveEndPoint.Y);
//mSecondCurveControlPoint1.Set(mSecondCurveStartPoint.X + (CURVE_CIRCLE_RADIUS * 2) - CURVE_CIRCLE_RADIUS, mSecondCurveStartPoint.Y);
//mSecondCurveControlPoint2.Set(mSecondCurveEndPoint.X - (CURVE_CIRCLE_RADIUS + (CURVE_CIRCLE_RADIUS / 4)), mSecondCurveEndPoint.Y);
var x1 = (mNavigationBarWidth - CURVE_CIRCLE_RADIUS * 2) / 2;
var r = CURVE_CIRCLE_RADIUS / 2;
var R = CURVE_CIRCLE_RADIUS;
mFirstCurveStartPoint.Set(x1 - r / 3, differenceOfScreen);
mFirstCurveEndPoint.Set(x1 + r, differenceOfScreen + r + r / 3);
mSecondCurveStartPoint = mFirstCurveEndPoint;
mSecondCurveEndPoint.Set(x1 + R + 2 * r / 3, differenceOfScreen);
mFirstCurveControlPoint1.Set(x1 + r, differenceOfScreen);
mFirstCurveControlPoint2.Set(x1 + r, differenceOfScreen + r + r / 3);
mSecondCurveControlPoint1.Set(x1 + r + r / 2, differenceOfScreen + r + r / 3);
mSecondCurveControlPoint2.Set(x1 + r + r / 2, differenceOfScreen);
}
protected override void OnSizeChanged(int w, int h, int oldw, int oldh)
{
base.OnSizeChanged(w, h, oldw, oldh);
this.Measure((int)MeasureSpecMode.Unspecified, (int)MeasureSpecMode.Unspecified);
CURVE_CIRCLE_RADIUS = this.MeasuredHeight / 2;
mNavigationBarWidth = Width;
mNavigationBarHeight = Height;
// the coordinates (x,y) of the start point before curve
mFirstCurveStartPoint.Set((mNavigationBarWidth / 2) - (CURVE_CIRCLE_RADIUS * 2) - (CURVE_CIRCLE_RADIUS / 3), 0);
// the coordinates (x,y) of the end point after curve
mFirstCurveEndPoint.Set(mNavigationBarWidth / 2, CURVE_CIRCLE_RADIUS + (CURVE_CIRCLE_RADIUS / 4));
// same thing for the second curve
mSecondCurveStartPoint = mFirstCurveEndPoint;
mSecondCurveEndPoint.Set((mNavigationBarWidth / 2) + (CURVE_CIRCLE_RADIUS * 2) + (CURVE_CIRCLE_RADIUS / 3), 0);
// the coordinates (x,y) of the 1st control point on a cubic curve
mFirstCurveControlPoint1.Set(mFirstCurveStartPoint.X + CURVE_CIRCLE_RADIUS + (CURVE_CIRCLE_RADIUS / 4), mFirstCurveStartPoint.Y);
// the coordinates (x,y) of the 2nd control point on a cubic curve
mFirstCurveControlPoint2.Set(mFirstCurveEndPoint.X - (CURVE_CIRCLE_RADIUS * 2) + CURVE_CIRCLE_RADIUS, mFirstCurveEndPoint.Y);
mSecondCurveControlPoint1.Set(mSecondCurveStartPoint.X + (CURVE_CIRCLE_RADIUS * 2) - CURVE_CIRCLE_RADIUS, mSecondCurveStartPoint.Y);
mSecondCurveControlPoint2.Set(mSecondCurveEndPoint.X - (CURVE_CIRCLE_RADIUS + (CURVE_CIRCLE_RADIUS / 4)), mSecondCurveEndPoint.Y);
mPath.Reset();
mPath.MoveTo(0, 0);
mPath.LineTo(mFirstCurveStartPoint.X, mFirstCurveStartPoint.Y);
mPath.CubicTo(mFirstCurveControlPoint1.X, mFirstCurveControlPoint1.Y,
mFirstCurveControlPoint2.X, mFirstCurveControlPoint2.Y,
mFirstCurveEndPoint.X, mFirstCurveEndPoint.Y);
mPath.CubicTo(mSecondCurveControlPoint1.X, mSecondCurveControlPoint1.Y,
mSecondCurveControlPoint2.X, mSecondCurveControlPoint2.Y,
mSecondCurveEndPoint.X, mSecondCurveEndPoint.Y);
mPath.LineTo(mNavigationBarWidth, 0);
mPath.LineTo(mNavigationBarWidth, mNavigationBarHeight);
mPath.LineTo(0, mNavigationBarHeight);
mPath.Close();
}
// Defines a callback that sends the drag shadow dimensions and touch point back to the system.
public override void OnProvideShadowMetrics(Android.Graphics.Point outShadowSize, Android.Graphics.Point outShadowTouchPoint)
{
double rotationRad = Java.Lang.Math.ToRadians(View.Rotation);
int w = (int)(View.Width * View.ScaleX);
int h = (int)(View.Height * View.ScaleY);
double s = Java.Lang.Math.Abs(Java.Lang.Math.Sin(rotationRad));
double c = Java.Lang.Math.Abs(Java.Lang.Math.Cos(rotationRad));
//calculate the size of the canvas
//width = view's width*cos(rad)+height*sin(rad)
width = (int)(w * c + h * s);
//height = view's width*sin(rad)+height*cos(rad)
height = (int)(w * s + h * c);
outShadowSize.Set(width, height);
// Sets the touch point's position to be in the middle of the drag shadow
outShadowTouchPoint.Set(outShadowSize.X / 2, outShadowSize.Y / 2);
}
public override void OnProvideShadowMetrics (Point size, Point touch)
{
//Dimensions of View
int width = View.Width;
int height = View.Height;
//Assigning dimensions to drawable
shadow.SetBounds (0, 0, width, height);
//Establishing the dimensions to Shadow Builder
size.Set (width, height);
//Defining position to Shadow Builder while dragging
touch.Set(width/2, height/2);
}
public override void OnProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint)
{
width = View.Width;
height = View.Height;
shadowSize.Set (width * 2, height * 2);
// touch point is in the middle of the (height, width) top-right rect
shadowTouchPoint.Set (width + width / 2 - centerOffset, height / 2 + centerOffset);
}
public override void OnProvideShadowMetrics (Point size, Point touch)
{
//Obtenemos las dimenciones de nuestro vista(view) que estamos arrastrando
int width = View.Width;
int height = View.Height;
//Le asignamos esas dimenciones a nuestro Drawable
shadow.SetBounds (0, 0, width, height);
//De igual forma establecemos las dimenciones de nuestro ShadownBuilder
size.Set (width, height);
//Definimos la posicion que se colocara nuestro ShadownBuilder cuando lo estemos arrastrando
touch.Set(width/2, height/2);
}
