UIImage GetTintedImage(UIImage img)
{
//// Make sure tintColor is available (>= iOS 7.0 runtime)
//if( [self respondsToSelector:@selector(tintColor)] && img.renderingMode == UIImageRenderingModeAlwaysTemplate )
//{
UIGraphics.BeginImageContextWithOptions(img.Size, false, UIScreen.MainScreen.Scale);
var context = UIGraphics.GetCurrentContext();
context.TranslateCTM(0, img.Size.Height);
context.ScaleCTM((nfloat)1.0, (nfloat)(-1.0));
var rect = new CGRect(0, 0, img.Size.Width, img.Size.Height);
// draw alpha-mask
context.SetBlendMode(CGBlendMode.Normal);
context.DrawImage(rect, img.CGImage);
// draw tint color, preserving alpha values of original image
context.SetBlendMode(CGBlendMode.SourceIn);
TintColor.SetFill();
context.FillRect(rect);
var tintedImage = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
//}
return(tintedImage);
}
public override void Draw(CGRect rect)
{
//get graphics context
using (CGContext g = UIGraphics.GetCurrentContext())
{
//set up drawing attributes
g.SetLineWidth(1);
if (TintColor != null)
{
TintColor.SetFill();
TintColor.SetStroke();
}
else
{
UIColor.Black.SetFill();
UIColor.Black.SetStroke();
}
//create geometry
var path = new CGPath();
path.AddLines(new CGPoint[] {
new CGPoint(1, 30),
new CGPoint(5, 30),
new CGPoint(5, 26)
});
path.CloseSubpath();
//add geometry to graphics context and draw it
g.AddPath(path);
g.DrawPath(CGPathDrawingMode.FillStroke);
}
base.Draw(rect);
}