protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
// get a copy of the xamarin control we are changing
SelectImageButton formControl = (SelectImageButton)sender;
// get the selected state and hold colors and widths and set them to be used thoughout the renderer
droidBackgroundColor = formControl.BackgroundColor.ToAndroid();
droidBorderColor = formControl.BorderColor.ToAndroid();
droidBorderWidth = formControl.BorderWidth * 2;
droidHoldBackgroundColor = formControl.HoldBackgroundColor.ToAndroid();
droidHoldBorderColor = formControl.HoldBorderColor.ToAndroid();
droidHoldBorderWidth = formControl.HoldBorderWidth * 2;
base.OnElementPropertyChanged(formControl, e);
// test of setting the padding for this before drawing a background
this.SetClipChildren(true);
// create a drawable color and set irs raduis, color, and border
var rad = new global::Android.Graphics.Drawables.GradientDrawable();
rad.SetCornerRadius(1000.00F);
rad.SetColor(droidBackgroundColor);
rad.SetStroke(droidBorderWidth, droidBorderColor);
// apply the drawable to the background
this.Background = rad;
// set the draw border
drawBorderWidth = (float)formControl.BorderWidth * 2;
}
// this will draw background and circular border then it will cut the image to a circle inside the border and padding
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
// the control as it exists in the protable project
formControl = (SelectImageButton)sender;
// the click events form the forms control to be added to the end of the long click
buttonevents = formControl.ClickEvents;
// setting the colors for use in ther renderer outside of the property changed event
iosBackgroundColor = formControl.BackgroundColor.ToCGColor();
iosBorderColor = formControl.BorderColor.ToCGColor();
iosBorderWidth = formControl.BorderWidth;
iosHoldBackgroundColor = formControl.HoldBackgroundColor.ToCGColor();
iosHoldBorderColor = formControl.HoldBorderColor.ToCGColor();
iosHoldBorderWidth = formControl.HoldBorderWidth;
// background
Xamarin.Forms.Color bgcolor = formControl.BackgroundColor;
Layer.BackgroundColor = bgcolor.ToCGColor();
// border
Layer.BorderColor = formControl.BorderColor.ToCGColor();
Layer.BorderWidth = formControl.BorderWidth;
Layer.CornerRadius = (float)formControl.Width / 2;
// setup for a long press gesture
UILongPressGestureRecognizer holdGesture = new UILongPressGestureRecognizer(holdPress);
holdGesture.MinimumPressDuration = 0.0;
this.AddGestureRecognizer(holdGesture);
// this need to check that the control is actually loaded as it can call this method without the control present
if (formControl != null)
{
// a top left and bottom right adjustment for the clipping border
float TLborderControl = 0;
float BRborderControl = formControl.BorderWidth;
// a rectangle made usiing the bounds and borders of the control that we will use the cut an elipse with
CGRect clipRect = new CGRect();
clipRect.X = (float)0 + TLborderControl;
clipRect.Y = (float)0 + TLborderControl;
clipRect.Width = (float)Element.Bounds.Width;
clipRect.Height = (float)Element.Bounds.Height;
CAShapeLayer clipShapeLayer = new CAShapeLayer();
CGPath clipPath = new CGPath();
clipPath.AddEllipseInRect(clipRect);
clipShapeLayer.Path = clipPath;
Layer.Mask = clipShapeLayer;
}
}
private void CropButton_Click(object sender, EventArgs e)
{
if (PictureBox1.Image == null)
{
alert.Show();
}
else
{
if (boolcrop == true)
{
SelectImageButton.Show();
CropImageButton.Show();
boolcrop = false;
}
else if (boolcrop == false)
{
SelectImageButton.Hide();
CropImageButton.Hide();
boolcrop = true;
}
}
}