quartz-core

I would like to know how it is possible to add a glass effect on a UIView I would like something like this effects on the gray translucent view you can see here : Thanks There's nothing like glass effect in UIView .All you can do is set the opacity of the view between 0 and 1.Also the view shown above has fine set of images which makes it seem like your "Glass Effect". Well If you what your UIView to be "shiny and elegant" , you can do it in two ways :- 1>You can simply have effects in images created with photoshop as it will decrease the overhead of doing the same with programming. 2>you can

In one of my application, I am trying to draw a gradient arc with rounded edges. Like the following image. This is what I have done so far using the following code. -(void)startArc { UIBezierPath *roundedArc = [self arcWithRoundedCornerAt:centerPoint startAngle:DEGREES_TO_RADIANS(-90) endAngle:DEGREES_TO_RADIANS(90) innerRadius:width-20 outerRadius:width cornerRadius:0]; CAShapeLayer *mask = [CAShapeLayer new]; [mask setPath:roundedArc.CGPath]; [mask setFrame:_outerView.bounds]; [mask setShouldRasterize:YES]; [mask setRasterizationScale:[UIScreen mainScreen].scale]; CAGradientLayer *gradient =

For an animation timing algorithm I need to supply a path as the curve. Probably a bezier curve with control points on both ends. The problem is that it seems not possible to calculate points on a CGPath because CGPathRef is opaque. Also Apple provides no mechanism to compute points on a path. Is there a library or utility class which can compute points on a bezier curve or path, for a given location like 0.5 for the middle along the path? Or let me rephrase it: If CGPath / CGPathRef makes this impossible because it is opaque, and if you only care about bezier curves, is there a way to compute

This question already has an answer here: Why masksToBounds = YES prevents CALayer shadow? 6 answers I have created a shadow using QuartzCore for my UITextView with this following code. myTextView.layer.masksToBounds = NO; myTextView.layer.shadowColor = [UIColor blackColor].CGColor; myTextView.layer.shadowOpacity = 0.7f; myTextView.layer.shadowOffset = CGSizeMake(2.0f, 2.0f); myTextView.layer.shadowRadius = 8.0f; myTextView.layer.shouldRasterize = YES; It creates a shadow and looks good too. Here it is my output for the above code. But When I try to add a text to the myTextView , my textView

i want to draw in my iPad app as in the following image in my app i have placed a image and while moving the finger(touch movement) i am repeating the images, but my image seems to be as follows. Following is my code to draw the image CGBlendMode blendMode = kCGBlendModeColorDodge; UIGraphicsBeginImageContext(drawImage.frame.size); [drawImage.image drawInRect:CGRectMake(0, 0, drawImage.frame.size.width, drawImage.frame.size.height)]; CGContextSetLineCap(UIGraphicsGetCurrentContext(), kCGLineCapRound); //// NSString *imagePath = [[NSBundle mainBundle] pathForResource:@"Watercolor-edge-45x45.png