本文整理汇总了C#中UIColor.GetRGBA方法的典型用法代码示例。如果您正苦于以下问题：C# UIColor.GetRGBA方法的具体用法？C# UIColor.GetRGBA怎么用？C# UIColor.GetRGBA使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类UIColor的用法示例。
在下文中一共展示了UIColor.GetRGBA方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: AdjustImage
public static UIImage AdjustImage(UIImage template, CGBlendMode mode,UIColor color)
{
float red = new float();
float green = new float();
float blue = new float();
float alpha = new float();
if (color == null)
color = UIColor.FromRGB(100,0,0);
color.GetRGBA(out red,out green, out blue, out alpha);
return AdjustImage(new RectangleF(PointF.Empty,template.Size),template,mode,red,green,blue,alpha);
}示例2: EquivalentColor
public static bool EquivalentColor(this UIColor c, UIColor d)
{
float ca = 0;
float cr = 0;
float cg = 0;
float cb = 0;
float da = 0;
float dr = 0;
float dg = 0;
float db = 0;
c.GetRGBA(out cr, out cg, out cb, out ca);
d.GetRGBA(out dr, out dg, out db, out da);
if (cr == dr && cg == dg && cb == db && ca == da)
return true;
return false;
}示例3: ApplyTintEffect
public static UIImage ApplyTintEffect (this UIImage self, UIColor tintColor)
{
const float EffectColorAlpha = 0.6f;
var effectColor = tintColor;
float alpha;
var componentCount = tintColor.CGColor.NumberOfComponents;
if (componentCount == 2) {
float white;
if (tintColor.GetWhite (out white, out alpha))
effectColor = UIColor.FromWhiteAlpha (white, EffectColorAlpha);
} else {
try {
float r, g, b;
tintColor.GetRGBA (out r, out g, out b, out alpha);
effectColor = UIColor.FromRGBA (r, g, b, EffectColorAlpha);
} catch {
}
}
return ApplyBlur (self, blurRadius: 10, tintColor: effectColor, saturationDeltaFactor: -1, maskImage: null);
}示例4: WithTint
public static UIImage WithTint(this UIImage image, UIColor color, float alpha = 1f)
{
UIGraphics.BeginImageContext(image.Size);
RectangleF contextRect = new RectangleF (Point.Empty, image.Size);
// Retrieve source image and begin image context
SizeF itemImageSize = image.Size;
PointF itemImagePosition = new PointF();
itemImagePosition.X = (float)Math.Ceiling((contextRect.Size.Width - itemImageSize.Width) / 2);
itemImagePosition.Y = (float)Math.Ceiling((contextRect.Size.Height - itemImageSize.Height) );
UIGraphics.BeginImageContext(contextRect.Size);
var c = UIGraphics.GetCurrentContext ();
// Setup shadow
// Setup transparency layer and clip to mask
c.BeginTransparencyLayer();
c.ScaleCTM (1, -1);
c.ClipToMask (new RectangleF(itemImagePosition.X, -itemImagePosition.Y, itemImageSize.Width, -itemImageSize.Height), image.CGImage);
// Fill and end the transparency layer
float red = 0;
float green = 0;
float blue = 0;
float a = 0;
color.GetRGBA (out red, out green, out blue, out a);
c.SetRGBFillColor (red, green, blue, a);
contextRect.Size = new SizeF (contextRect.Size.Width, (-1 * contextRect.Size.Height) - 15);
c.FillRect(contextRect);
c.EndTransparencyLayer();
UIImage img = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
return img;
}