本文整理汇总了C#中CGBitmapContext.SetFillPattern方法的典型用法代码示例。如果您正苦于以下问题：C# CGBitmapContext.SetFillPattern方法的具体用法？C# CGBitmapContext.SetFillPattern怎么用？C# CGBitmapContext.SetFillPattern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CGBitmapContext的用法示例。
在下文中一共展示了CGBitmapContext.SetFillPattern方法的1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: ViewDidLoad
public override void ViewDidLoad ()
{
base.ViewDidLoad ();
// set the background color of the view to white
View.BackgroundColor = UIColor.White;
// instantiate a new image view that takes up the whole screen and add it to
// the view hierarchy
RectangleF imageViewFrame = new RectangleF (0, -NavigationController.NavigationBar.Frame.Height, View.Frame.Width, View.Frame.Height);
imageView = new UIImageView (imageViewFrame);
View.AddSubview (imageView);
// create our offscreen bitmap context
// size
SizeF bitmapSize = new SizeF (View.Frame.Size);
using (CGBitmapContext context = new CGBitmapContext (IntPtr.Zero,
(int)bitmapSize.Width, (int)bitmapSize.Height, 8,
(int)(4 * bitmapSize.Width), CGColorSpace.CreateDeviceRGB (),
CGImageAlphaInfo.PremultipliedFirst)) {
// declare vars
RectangleF patternRect = new RectangleF (0, 0, 16, 16);
// set the color space of our fill to be the patter colorspace
context.SetFillColorSpace (CGColorSpace.CreatePattern (null));
// create a new pattern
CGPattern pattern = new CGPattern (patternRect,
CGAffineTransform.MakeRotation (.3f), 16, 16, CGPatternTiling.NoDistortion,
true, DrawPolkaDotPattern);
// set our fill as our pattern, color doesn't matter because the pattern handles it
context.SetFillPattern (pattern, new float[] { 1 });
// fill the entire view with that pattern
context.FillRect (imageView.Frame);
// output the drawing to the view
imageView.Image = UIImage.FromImage (context.ToImage ());
}
}