Class: CAGradientLayer

Inherits:
CALayer show all

Overview

The CAGradientLayer class draws a color gradient over its background color, filling the shape of the layer (including rounded corners)

Instance Attribute Summary (collapse)

Attributes inherited from CALayer

#actions, #anchorPoint, #anchorPointZ, #backgroundColor, #backgroundFilters, #borderColor, #borderWidth, #bounds, #compositingFilter, #contents, #contentsCenter, #contentsGravity, #contentsRect, #contentsScale, #cornerRadius, #delegate, #doubleSided, #drawsAsynchronously, #edgeAntialiasingMask, #filters, #frame, #geometryFlipped, #hidden, #magnificationFilter, #mask, #masksToBounds, #minificationFilter, #minificationFilterBias, #name, #needsDisplayOnBoundsChange, #opacity, #opaque, #position, #rasterizationScale, #shadowColor, #shadowOffset, #shadowOpacity, #shadowPath, #shadowRadius, #shouldRasterize, #style, #sublayerTransform, #sublayers, #superlayer, #transform, #visibleRect, #zPosition

Method Summary

Methods inherited from CALayer

#actionForKey:, #addAnimation:forKey:, #addSublayer:, #affineTransform, #animationForKey:, #animationKeys, #containsPoint:, #contentsAreFlipped, #convertPoint:fromLayer:, #convertPoint:toLayer:, #convertRect:fromLayer:, #convertRect:toLayer:, #convertTime:fromLayer:, #convertTime:toLayer:, defaultActionForKey:, defaultValueForKey:, #display, #displayIfNeeded, #drawInContext:, #hitTest:, #init, #initWithLayer:, #insertSublayer:above:, #insertSublayer:atIndex:, #insertSublayer:below:, layer, #layoutIfNeeded, #layoutSublayers, #modelLayer, #needsDisplay, needsDisplayForKey:, #needsLayout, #preferredFrameSize, #presentationLayer, #removeAllAnimations, #removeAnimationForKey:, #removeFromSuperlayer, #renderInContext:, #replaceSublayer:with:, #scrollPoint:, #scrollRectToVisible:, #setAffineTransform:, #setNeedsDisplay, #setNeedsDisplayInRect:, #setNeedsLayout, #shouldArchiveValueForKey:

Methods inherited from NSObject

#!, #!=, #!~, #, #==, #===, #=~, #Rational, #__callee__, #__method__, #__send__, #__type__, `, alloc, allocWithZone:, #autoContentAccessingProxy, autoload, autoload?, autorelease_pool, #awakeAfterUsingCoder:, binding, block_given?, caller, cancelPreviousPerformRequestsWithTarget:, cancelPreviousPerformRequestsWithTarget:selector:object:, catch, class, classFallbacksForKeyedArchiver, #classForCoder, #classForKeyedArchiver, classForKeyedUnarchiver, #clone, conformsToProtocol:, #copy, copyWithZone:, #dealloc, #define_singleton_method, description, display, #doesNotRecognizeSelector:, #dup, #enum_for, #eql?, #equal?, #extend, fail, #finalize, format, #forwardInvocation:, #forwardingTargetForSelector:, framework, #freeze, #frozen?, getpass, gets, global_variables, #init, initialize, #initialize_clone, #initialize_copy, #initialize_dup, #inspect, instanceMethodForSelector:, instanceMethodSignatureForSelector:, #instance_eval, #instance_exec, #instance_of?, #instance_variable_defined?, #instance_variable_get, #instance_variable_set, #instance_variables, instancesRespondToSelector:, isSubclassOfClass:, #is_a?, iterator?, #kind_of?, lambda, load, load_bridge_support_file, load_plist, local_variables, loop, #method, #methodForSelector:, #methodSignatureForSelector:, #methods, #mutableCopy, mutableCopyWithZone:, new, #nil?, open, p, #performSelector:onThread:withObject:waitUntilDone:, #performSelector:onThread:withObject:waitUntilDone:modes:, #performSelector:withObject:afterDelay:, #performSelector:withObject:afterDelay:inModes:, #performSelectorInBackground:withObject:, #performSelectorOnMainThread:withObject:waitUntilDone:, #performSelectorOnMainThread:withObject:waitUntilDone:modes:, print, printf, #private_methods, proc, #protected_methods, #public_method, #public_methods, #public_send, putc, puts, raise, rand, readline, readlines, #replacementObjectForCoder:, #replacementObjectForKeyedArchiver:, require, resolveClassMethod:, resolveInstanceMethod:, #respond_to?, #respond_to_missing?, select, #send, setVersion:, #singleton_methods, sprintf, srand, superclass, #taint, #tainted?, #tap, test, throw, #to_plist, #to_s, trace_var, trap, #trust, #untaint, untrace_var, #untrust, #untrusted?, version

Constructor Details

This class inherits a constructor from NSObject

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class NSObject

Instance Attribute Details

- (Array) colors

An array of CGColorRef objects defining the color of each gradient stop. Animatable. Defaults to nil.

Returns:

- (CGPoint) endPoint

The end point of the gradient when drawn in the layer’s coordinate space. Animatable. The end point corresponds to the last stop of the gradient. The point is defined in the unit coordinate space and is then mapped to the layer’s bounds rectangle when drawn.Default value is (0.5,1.0).

Returns:

  • (CGPoint)

- (Array) locations

An optional array of NSNumber objects defining the location of each gradient stop. Animatable. The gradient stops are specified as values between 0 and 1. The values must be monotonically increasing. If nil, the stops are spread uniformly across the range. Defaults to nil.When rendered, the colors are mapped to the output color space before being interpolated.

Returns:

- (CGPoint) startPoint

The start point of the gradient when drawn in the layer’s coordinate space. Animatable. The start point corresponds to the first stop of the gradient. The point is defined in the unit coordinate space and is then mapped to the layer’s bounds rectangle when drawn.Default value is (0.5,0.0).

Returns:

  • (CGPoint)

- (String) type

Style of gradient drawn by the layer. Defaults to kCAGradientLayerAxial.

Returns: