protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
var colorFrom = Element.BackgroundGradientColorFrom;
var colorTo = Element.BackgroundGradientColorTo;
if (colorFrom.HasValue && colorTo.HasValue)
{
var startColor = colorFrom.GetValueOrDefault().ToAndroid();
var endColor = colorTo.GetValueOrDefault().ToAndroid();
var width = 0;
var height = Height;
if (Element.IsHorizontalGradientBackground)
{
width = Width;
height = 0;
}
using (var gradient = new Android.Graphics.LinearGradient(
0, 0, width, height,
startColor,
endColor,
Android.Graphics.Shader.TileMode.Mirror))
{
using (var paint = new Android.Graphics.Paint {
Dither = true
})
{
paint.SetShader(gradient);
canvas.DrawPaint(paint);
}
}
}
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
Android.Graphics.LinearGradient gradient;
int[] colors = new int[Colors.Length];
for (int i = 0, l = Colors.Length; i < l; i++)
{
colors[i] = Colors[i].ToAndroid().ToArgb();
}
switch (Mode)
{
default:
case GradientColorStackMode.ToRight:
gradient = new Android.Graphics.LinearGradient(0, 0, Width, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToLeft:
gradient = new Android.Graphics.LinearGradient(Width, 0, 0, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToTop:
gradient = new Android.Graphics.LinearGradient(0, Height, 0, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToBottom:
gradient = new Android.Graphics.LinearGradient(0, 0, 0, Height, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToTopLeft:
gradient = new Android.Graphics.LinearGradient(Width, Height, 0, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToTopRight:
gradient = new Android.Graphics.LinearGradient(0, Height, Width, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToBottomLeft:
gradient = new Android.Graphics.LinearGradient(Width, 0, 0, Height, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToBottomRight:
gradient = new Android.Graphics.LinearGradient(0, 0, Width, Height, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
}
var paint = new Android.Graphics.Paint()
{
Dither = true,
};
paint.SetShader(gradient);
canvas.DrawPaint(paint);
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(Android.Graphics.Canvas canvas)
{
var gradients = new Android.Graphics.LinearGradient(0, 0, 0, Height, this.StarColor.ToAndroid(), this.EndColor.ToAndroid(), Android.Graphics.Shader.TileMode.Mirror);
var paint = new Android.Graphics.Paint()
{
Dither = true
};
paint.SetShader(gradients);
canvas.DrawPaint(paint);
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
var gradient = new Android.Graphics.LinearGradient(0, 0, this.Width, 0, StartColor.ToAndroid(), EndColor.ToAndroid(), Android.Graphics.Shader.TileMode.Repeat);
var paint = new Android.Graphics.Paint()
{
Dither = true
};
paint.SetShader(gradient);
canvas.DrawPaint(paint);
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
var gradient = new Android.Graphics.LinearGradient(0, 0, 0, Width,
//var gradient = new Android.Graphics.LinearGradient(0, 0, 0, Height,
this.StartColor.ToAndroid(),
this.EndColor.ToAndroid(),
Android.Graphics.Shader.TileMode.Clamp);//mirror
var paint = new Android.Graphics.Paint()
{
Dither = true,
};
paint.SetShader(gradient);
canvas.DrawPaint(paint);
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
#region for Vertical Gradient
var gradient = new Android.Graphics.LinearGradient(0, 0, 0, Height,
this.StartColor.ToAndroid(),
this.EndColor.ToAndroid(),
Android.Graphics.Shader.TileMode.Mirror);
var paint = new Android.Graphics.Paint()
{
Dither = true,
};
paint.SetShader(gradient);
canvas.DrawPaint(paint);
base.DispatchDraw(canvas);
#endregion
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
try
{
var gradient = new Android.Graphics.LinearGradient(0, 0, 0, Height, this.StartColor.ToAndroid(), this.EndColor.ToAndroid(), Android.Graphics.Shader.TileMode.Mirror);
var paint = new Android.Graphics.Paint()
{
Dither = true,
};
paint.SetShader(gradient);
canvas.DrawPaint(paint);
}
catch (Exception ex)
{
var msg = ex.Message;
}
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
Android.Graphics.LinearGradient LinearGradient = null;
if (Direction == ItemsLayoutOrientation.Vertical)
{
if (HasCenterColor)
{
int[] colors = { this.StartColor.ToAndroid().ToArgb(), this.CenterColor.ToAndroid().ToArgb(), this.EndColor.ToAndroid().ToArgb() };
float[] positions = { 0.5F, YCenter, 1 };
LinearGradient = new Android.Graphics.LinearGradient(0, 0, 0, Height, colors, positions, Android.Graphics.Shader.TileMode.Mirror);
}
else
{
int[] colors = { this.StartColor.ToAndroid().ToArgb(), this.EndColor.ToAndroid().ToArgb() };
float[] positions = { YCenter, 1 };
LinearGradient = new Android.Graphics.LinearGradient(0, 0, 0, Height, colors, positions, Android.Graphics.Shader.TileMode.Mirror);
}
}
if (Direction == ItemsLayoutOrientation.Horizontal)
{
if (HasCenterColor)
{
int[] colors = { this.StartColor.ToAndroid().ToArgb(), this.CenterColor.ToAndroid().ToArgb(), this.EndColor.ToAndroid().ToArgb() };
float[] positions = { 0.5F, YCenter, 1 };
LinearGradient = new Android.Graphics.LinearGradient(0, 0, 0, Width, colors, positions, Android.Graphics.Shader.TileMode.Mirror);
}
else
{
int[] colors = { this.StartColor.ToAndroid().ToArgb(), this.EndColor.ToAndroid().ToArgb() };
float[] positions = { YCenter, 1 };
LinearGradient = new Android.Graphics.LinearGradient(0, 0, 0, Width, colors, positions, Android.Graphics.Shader.TileMode.Mirror);
}
}
Android.Graphics.Paint paint = new Android.Graphics.Paint()
{
Dither = true,
};
paint.SetShader(LinearGradient);
canvas.DrawPaint(paint);
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
var gradientView = Element as GradientBackgroundView;
var gradient = new Android.Graphics.LinearGradient(0, 0, 0, Height,
gradientView.StartColor.ToAndroid(),
gradientView.EndColor.ToAndroid(),
Android.Graphics.Shader.TileMode.Mirror);
var paint = new Android.Graphics.Paint()
{
Dither = true,
};
paint.SetShader(gradient);
canvas.DrawPaint(paint);
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
#region for Vertical Gradient
//var gradient = new Android.Graphics.LinearGradient(0, 0, 0, Height,
#endregion
#region for Horizontal Gradient
var gradient = new Android.Graphics.LinearGradient(0, 0, Width, 0,
#endregion
this.StartColor.ToAndroid(),
this.EndColor.ToAndroid(),
Android.Graphics.Shader.TileMode.Mirror);
var paint = new Android.Graphics.Paint()
{
Dither = true,
};
paint.SetShader(gradient);
canvas.DrawRoundRect(0.0f, -LeftBottomCornerRadius, (float)Width + LeftBottomCornerRadius, (float)Height, LeftBottomCornerRadius, LeftBottomCornerRadius, paint);
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
#region for Vertical Gradient
//var gradient = new Android.Graphics.LinearGradient(0, 0, 0, Height,
#endregion
#region for Horizontal Gradient
var gradient = new Android.Graphics.LinearGradient(0, 0, Width, 0, new int[] {
this.StartColor.ToAndroid(),
this.MidOneColor.ToAndroid(),
this.MidTwoColor.ToAndroid(),
this.EndColor.ToAndroid()
}, new float[] { 0.0f, 0.25f, 0.75f, 1.0f },
#endregion
Android.Graphics.Shader.TileMode.Mirror);
var paint = new Android.Graphics.Paint()
{
Dither = true,
};
paint.SetShader(gradient);
canvas.DrawPaint(paint);
base.DispatchDraw(canvas);
}
protected override void DispatchDraw(global::Android.Graphics.Canvas canvas)
{
GradientLayout layout = (GradientLayout)this.Element;
Color[] Colors = layout.Colors;
GradientColorStackMode Mode = layout.Mode;
int[] colors = new int[Colors.Length];
for (int i = 0, l = Colors.Length; i < l; i++)
{
colors[i] = Colors[i].ToAndroid().ToArgb();
}
// temporary workaround for Android 9 PIE
if (Android.OS.Build.VERSION.SdkInt > Android.OS.BuildVersionCodes.O)
{
GradientDrawable.Orientation orientation;
switch (Mode)
{
default:
case GradientColorStackMode.ToRight:
orientation = GradientDrawable.Orientation.LeftRight;
break;
case GradientColorStackMode.ToTop:
orientation = GradientDrawable.Orientation.BottomTop;
break;
case GradientColorStackMode.ToBottom:
orientation = GradientDrawable.Orientation.TopBottom;
break;
case GradientColorStackMode.ToTopLeft:
orientation = GradientDrawable.Orientation.BrTl;
break;
case GradientColorStackMode.ToTopRight:
orientation = GradientDrawable.Orientation.BlTr;
break;
case GradientColorStackMode.ToBottomLeft:
orientation = GradientDrawable.Orientation.TrBl;
break;
case GradientColorStackMode.ToBottomRight:
orientation = GradientDrawable.Orientation.TlBr;
break;
}
var gradient2 = new GradientDrawable(orientation, colors);
ViewCompat.SetBackground(this, gradient2);
base.DispatchDraw(canvas);
return;
}
Android.Graphics.LinearGradient gradient;
switch (Mode)
{
default:
case GradientColorStackMode.ToRight:
gradient = new Android.Graphics.LinearGradient(0, 0, Width, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToLeft:
gradient = new Android.Graphics.LinearGradient(Width, 0, 0, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToTop:
gradient = new Android.Graphics.LinearGradient(0, Height, 0, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToBottom:
gradient = new Android.Graphics.LinearGradient(0, 0, 0, Height, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToTopLeft:
gradient = new Android.Graphics.LinearGradient(Width, Height, 0, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToTopRight:
gradient = new Android.Graphics.LinearGradient(0, Height, Width, 0, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToBottomLeft:
gradient = new Android.Graphics.LinearGradient(Width, 0, 0, Height, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
case GradientColorStackMode.ToBottomRight:
gradient = new Android.Graphics.LinearGradient(0, 0, Width, Height, colors, null, Android.Graphics.Shader.TileMode.Mirror);
break;
}
var paint = new Android.Graphics.Paint()
{
Dither = true,
};
paint.SetShader(gradient);
canvas.DrawPaint(paint);
base.DispatchDraw(canvas);
}
