protected override void OnElementChanged(ElementChangedEventArgs <Entry> e)
{
base.OnElementChanged(e);
if (e.NewElement != null)
{
var view = (CustomEntry)Element;
if (view.IsCurvedCornersEnabled)
{
// creating gradient drawable for the curved background
var _gradientBackground = new GradientDrawable();
_gradientBackground.SetShape(ShapeType.Rectangle);
_gradientBackground.SetColor(view.BackgroundColor.ToAndroid());
// Thickness of the stroke line
_gradientBackground.SetStroke(view.BorderWidth, view.BorderColor.ToAndroid());
_gradientBackground.SetGradientRadius(0);
// Radius for the curves
_gradientBackground.SetCornerRadius(
DpToPixels(this.Context, 0));
// set the background of the
Control.SetBackground(_gradientBackground);
}
// Set padding for the internal text from border
Control.SetPadding(
(int)DpToPixels(this.Context, Convert.ToSingle(5)), Control.PaddingTop,
(int)DpToPixels(this.Context, Convert.ToSingle(5)), Control.PaddingBottom);
}
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
if (Element != null)
{
var view = (CustomEntry)Element;
Control.Background.SetColorFilter(App.Current.UserAppTheme == OSAppTheme.Dark ? Color.Black : Color.White, PorterDuff.Mode.SrcAtop);
if (view.IsCurvedCornersEnabled)
{
// creating gradient drawable for the curved background
var _gradientBackground = new GradientDrawable();
_gradientBackground.SetShape(ShapeType.Rectangle);
_gradientBackground.SetColor(view.BackgroundColor.ToAndroid());
// Thickness of the stroke line
_gradientBackground.SetStroke(view.BorderWidth, view.BorderColor.ToAndroid());
// Radius for the curves
_gradientBackground.SetCornerRadius(DpToPixels(this.Context, Convert.ToSingle(view.CornerRadius)));
_gradientBackground.SetGradientRadius(DpToPixels(this.Context, Convert.ToSingle(view.CornerRadius)));
// set the background of the
Control.SetBackground(_gradientBackground);
}
// Set padding for the internal text from border
Control.SetPadding((int)DpToPixels(this.Context, Convert.ToSingle(12)), Control.PaddingTop, (int)DpToPixels(this.Context, Convert.ToSingle(12)), Control.PaddingBottom);
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Button> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
var button = Control;
// See ButtonRendererWithNavFix.cs
CustomClickHandler(button);
// Applies a "blue" gradient to our Android navigation buttons
var gradientDrawable = new GradientDrawable();
gradientDrawable.SetOrientation(GradientDrawable.Orientation.TlBr);
gradientDrawable.SetColors(new int[] { Color.Argb(255, 20, 143, 194), Color.Argb(255, 0, 44, 119) });
gradientDrawable.SetGradientType(GradientType.RadialGradient);
gradientDrawable.SetGradientRadius(300);
gradientDrawable.SetGradientCenter(0.5f, 0);
button.SetBackgroundDrawable(gradientDrawable);
// Sets a small drop shadow to the buttons' text
button.SetShadowLayer(1, 1, 1, Color.Black);
}
}
public static void UpdateBackground(this GradientDrawable gradientDrawable, Brush brush, int height, int width)
{
if (gradientDrawable == null || brush == null || brush.IsEmpty)
{
return;
}
if (brush is SolidColorBrush solidColorBrush)
{
Color bgColor = solidColorBrush.Color;
gradientDrawable.SetColor(bgColor.IsDefault ? Color.Default.ToAndroid() : bgColor.ToAndroid());
}
if (brush is LinearGradientBrush linearGradientBrush)
{
var p1 = linearGradientBrush.StartPoint;
var x1 = (float)p1.X;
var y1 = (float)p1.Y;
var p2 = linearGradientBrush.EndPoint;
var x2 = (float)p2.X;
var y2 = (float)p2.Y;
const double Rad2Deg = 180.0 / Math.PI;
var angle = Math.Atan2(y2 - y1, x2 - x1) * Rad2Deg;
var gradientBrushData = linearGradientBrush.GetGradientBrushData();
var colors = gradientBrushData.Item1;
if (colors.Length < 2)
{
return;
}
gradientDrawable.SetGradientType(GradientType.LinearGradient);
gradientDrawable.SetColors(colors);
gradientDrawable.SetGradientOrientation(angle);
}
if (brush is RadialGradientBrush radialGradientBrush)
{
var center = radialGradientBrush.Center;
float centerX = (float)center.X;
float centerY = (float)center.Y;
float radius = (float)radialGradientBrush.Radius;
var gradientBrushData = radialGradientBrush.GetGradientBrushData();
var colors = gradientBrushData.Item1;
if (colors.Length < 2)
{
return;
}
gradientDrawable.SetGradientType(GradientType.RadialGradient);
gradientDrawable.SetGradientCenter(centerX, centerY);
gradientDrawable.SetGradientRadius(Math.Max(height, width) * radius);
gradientDrawable.SetColors(colors);
}
}
void ApplyBorder()
{
GradientDrawable gd = new GradientDrawable();
gd.SetCornerRadius(0);
gd.SetGradientRadius(0);
gd.SetStroke(2, Color.FromHex("#50B1FF").ToAndroid());
this.Control.Background = gd;
}
private void InitilizeBorderEntry(Android.Graphics.Color color)
{
var gd = new GradientDrawable();
gd.SetColor(supportEntry.BackgroundColorInside.ToAndroid()); // Changes this drawbale to use a single color instead of a gradient
gd.SetCornerRadius((float)supportEntry.CornerRadius);
gd.SetGradientRadius((float)supportEntry.CornerWidth);
gd.SetStroke((int)supportEntry.CornerWidth, color);
Control.SetBackground(gd);
}
private void InitilizeBorderEntry(Android.Graphics.Color color)
{
var gd = new GradientDrawable();
gd.SetColor(supportEntry.BackgroundColorInside.ToAndroid());
gd.SetCornerRadius((float)supportEntry.CornerRadius);
gd.SetGradientRadius((float)supportEntry.CornerWidth);
gd.SetStroke((int)supportEntry.CornerWidth, color);
Control.SetBackground(gd);
}
void ApplyBorder()
{
if (Control == null)
{
return;
}
GradientDrawable gd = new GradientDrawable();
gd.SetCornerRadius(0);
gd.SetGradientRadius(0);
gd.SetStroke(2, Xamarin.Forms.Color.FromHex("#50B1FF").ToAndroid());
this.Control.Background = gd;
}
protected override void OnAttached()
{
if (gradientDrawable == null)
{
gradientDrawable = new GradientDrawable();
Control.Background = gradientDrawable;
var effect = (PQGradiantEffect)Element.Effects.FirstOrDefault(e => e is PQGradiantEffect);
if (effect == null)
{
return;
}
SetColors();
if (!effect.IsRadial)
{
switch (effect.Oriantaion)
{
case Helpers.Shared.GradiantOriantaion.LeftToRight:
gradientDrawable.SetOrientation(GradientDrawable.Orientation.LeftRight);
break;
case Helpers.Shared.GradiantOriantaion.RightToLeft:
gradientDrawable.SetOrientation(GradientDrawable.Orientation.RightLeft);
break;
case Helpers.Shared.GradiantOriantaion.TopToBottom:
gradientDrawable.SetOrientation(GradientDrawable.Orientation.TopBottom);
break;
case Helpers.Shared.GradiantOriantaion.BottomToTop:
gradientDrawable.SetOrientation(GradientDrawable.Orientation.BottomTop);
break;
default:
gradientDrawable.SetOrientation(GradientDrawable.Orientation.LeftRight);
break;
}
}
gradientDrawable.SetGradientRadius(150);
gradientDrawable.SetShape(ShapeType.Rectangle);
gradientDrawable.SetCornerRadius(effect.Radius);
gradientDrawable.SetGradientType(effect.IsRadial ? GradientType.RadialGradient : GradientType.LinearGradient);
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Entry> e)
{
base.OnElementChanged(e);
if (Control != null)
{
var gradientDarawable = new GradientDrawable();
gradientDarawable.SetCornerRadius(8f);
gradientDarawable.SetStroke(6, global::Android.Graphics.Color.Black);
gradientDarawable.SetColor(global::Android.Graphics.Color.White);
gradientDarawable.SetGradientRadius(8f);
Control.SetBackground(gradientDarawable);
Control.SetPadding(10, Control.PaddingTop, Control.PaddingRight, 50);
/* Control.SetBackgroundColor(global::Android.Graphics.Color.White);
* Control.SetTextColor(global::Android.Graphics.Color.Black);*/
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Button> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
var button = Control;
// Applies a "gray" gradient to our Android popup buttons
var gradientDrawable = new GradientDrawable();
gradientDrawable.SetOrientation(GradientDrawable.Orientation.TlBr);
gradientDrawable.SetColors(new int[] { Color.Argb(255, 167, 169, 172), Color.Argb(255, 76, 76, 76) });
gradientDrawable.SetGradientType(GradientType.RadialGradient);
gradientDrawable.SetGradientRadius(300);
gradientDrawable.SetGradientCenter(0.5f, 0);
button.SetBackgroundDrawable(gradientDrawable);
// Sets a small drop shadow to the buttons' text
button.SetShadowLayer(1, 1, 1, Color.Black);
}
}
void InitilizeSeekBar(int width, bool valueChnaged = false)
{
if (Control != null)
{
//convert details from CustomGradientSlider to android values
var slider = Element as CustomGradientSlider;
var startColor = control.TrackStartColor.ToAndroid();
//var centerColor = Android.Graphics.Color.Orange;
var endColor = control.TrackEndColor.ToAndroid();
var cornerRadiusInPx = ((float)(slider.HeightRequest / 2.0)).DpToPixels(Context);
var heightPx = (12.0f).DpToPixels(Context);
var gradientWidth = ((width - 45) / Element.Maximum) * Element.Value;
//create minimum track
var p = new GradientDrawable(GradientDrawable.Orientation.LeftRight, new int[] { startColor, endColor });
p.SetCornerRadius(cornerRadiusInPx);
//create maximum track
var background = new GradientDrawable();
background.SetColor(control.TrackColor.ToAndroid());
background.SetCornerRadius(cornerRadiusInPx);
var shapes = new List <Drawable>();
var shadow = new GradientDrawable();
shadow.SetColor(Android.Graphics.Color.ParseColor("#E8E8E8"));
shadow.SetCornerRadius(cornerRadiusInPx);
shadow.SetGradientRadius(40f);
if (control.HasSegment)
{
for (int i = 0; i < ((int)(Element.Maximum / control.Interval)) + 1; i++)
{
var shapeDrawable = i * control.Interval < Element.Value ? Android.App.Application.Context.GetDrawable(Resource.Drawable.whitePoint) : Android.App.Application.Context.GetDrawable(Resource.Drawable.bluePoint);
shapes.Add(shapeDrawable);
}
}
var drawables = new List <Drawable> {
background, p
};
if (control.HasShadow)
{
drawables.Insert(0, shadow);
}
drawables.AddRange(shapes);
var pd = new LayerDrawable(drawables.ToArray());
if (control.HasShadow)
{
pd.SetLayerHeight(0, (int)heightPx + 3);
}
pd.SetLayerHeight(drawables.IndexOf(background), (int)heightPx);
pd.SetLayerHeight(drawables.IndexOf(p), (int)heightPx);
pd.SetLayerWidth(drawables.IndexOf(p), (int)gradientWidth);
int intervalStartsFrom = 2;
if (control.HasShadow)
{
intervalStartsFrom = 3;
}
if (control.HasSegment)
{
var segmentDelay = (width - (int)40.0f.DpToPixels(Context)) / (int)(Element.Maximum / (int)control.Interval);
for (int i = intervalStartsFrom; i < drawables.Count; i++)
{
pd.SetLayerHeight(i, (int)5.0f.DpToPixels(Context));
pd.SetLayerWidth(i, (int)5.0f.DpToPixels(Context));
pd.SetLayerInset(i, i == intervalStartsFrom ? 10 : i == drawables.Count - 1 ? ((i - intervalStartsFrom) * segmentDelay) - (int)10.0f.DpToPixels(Context) : (i - intervalStartsFrom) * segmentDelay, (int)4.0f.DpToPixels(Context), 0, 0);
}
}
Control.ProgressDrawable = pd;
LayoutInflater inflater = (LayoutInflater)Android.App.Application.Context.GetSystemService(Context.LayoutInflaterService);
thumbView = inflater.Inflate(Resource.Layout.layout_seekbar_thumb, null, false);
var thumbText = ((TextView)thumbView.FindViewById(Resource.Id.thumbText));
thumbText.TextSize = (float)control.ThumbTextFontSize;
thumbText.SetTextColor(Android.Graphics.Color.White);
var iconName = (control.ThumbImageSource as Xamarin.Forms.FileImageSource).File;
var thumbViewIcon = ((LinearLayout)thumbView.FindViewById(Resource.Id.seekBarIcon));
thumbViewIcon.SetBackgroundDrawable(Android.App.Application.Context.GetDrawable(iconName));
var thumb = GetThumb((int)Element.Value);
Control.SetThumb(thumb);
if (valueChnaged)
{
thumb.SetBounds(thumb.Bounds.Left, 0, thumb.Bounds.Right, thumb.IntrinsicHeight);
}
Control.Background = null;
}
}