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Added a sample for animating custom layer properties
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| /* | ||
| The MIT License | ||
| Copyright (c) 2010 Free Time Studios and Nathan Eror | ||
| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
| The above copyright notice and this permission notice shall be included in | ||
| all copies or substantial portions of the Software. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| THE SOFTWARE. | ||
| */ | ||
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| #import <UIKit/UIKit.h> | ||
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| @class CustomLayer; | ||
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| @interface CustomPropertyAnimation : UIViewController { | ||
| CustomLayer *customLayer_; | ||
| } | ||
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| @end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| /* | ||
| The MIT License | ||
| Copyright (c) 2010 Free Time Studios and Nathan Eror | ||
| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
| The above copyright notice and this permission notice shall be included in | ||
| all copies or substantial portions of the Software. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| THE SOFTWARE. | ||
| */ | ||
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| #import "CustomPropertyAnimation.h" | ||
| #import <QuartzCore/QuartzCore.h> | ||
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| @interface CustomLayer : CALayer { | ||
| } | ||
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| @property (assign) CGFloat margin; | ||
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| @end | ||
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| @implementation CustomLayer | ||
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| @synthesize margin; | ||
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| + (BOOL)needsDisplayForKey:(NSString *)key { | ||
| if([key isEqualToString:@"margin"]) { | ||
| return YES; | ||
| } | ||
| return [super needsDisplayForKey:key]; | ||
| } | ||
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| - (void)drawInContext:(CGContextRef)ctx { | ||
| CGContextSaveGState(ctx); | ||
| CGContextAddRect(ctx, CGRectInset(self.bounds, self.margin, self.margin)); | ||
| CGContextSetStrokeColorWithColor(ctx, [[UIColor yellowColor] CGColor]); | ||
| CGContextSetLineWidth(ctx, 4.f); | ||
| CGContextDrawPath(ctx, kCGPathStroke); | ||
| CGContextRestoreGState(ctx); | ||
| } | ||
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| @end | ||
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| @implementation CustomPropertyAnimation | ||
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| + (NSString *)friendlyName { | ||
| return @"Custom Properties"; | ||
| } | ||
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| #pragma mark init and dealloc | ||
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| - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { | ||
| if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { | ||
| self.title = [[self class] friendlyName]; | ||
| } | ||
| return self; | ||
| } | ||
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| - (void)dealloc { | ||
| [super dealloc]; | ||
| } | ||
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| #pragma mark Load and unload the view | ||
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| - (void)loadView { | ||
| UIView *myView = [[[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease]; | ||
| myView.backgroundColor = [UIColor whiteColor]; | ||
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| customLayer_ = [[CustomLayer alloc] init]; | ||
| [myView.layer addSublayer:customLayer_]; | ||
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| self.view = myView; | ||
| } | ||
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| #pragma mark View drawing | ||
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| - (void)viewWillAppear:(BOOL)animated { | ||
| customLayer_.backgroundColor = [[UIColor blueColor] CGColor]; | ||
| customLayer_.frame = CGRectInset(self.view.bounds, 50.f, 100.f); | ||
| customLayer_.position = self.view.center; | ||
| customLayer_.margin = 0.f; | ||
| } | ||
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| - (void)viewDidAppear:(BOOL)animated { | ||
| CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"margin"]; | ||
| anim.duration = 1.f; | ||
| anim.fromValue = [NSNumber numberWithFloat:5.f]; | ||
| anim.toValue = [NSNumber numberWithFloat:25.f]; | ||
| anim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; | ||
| anim.repeatCount = CGFLOAT_MAX; | ||
| anim.autoreverses = YES; | ||
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| [customLayer_ addAnimation:anim forKey:@"margin"]; | ||
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| CABasicAnimation *anim2 = [CABasicAnimation animationWithKeyPath:@"cornerRadius"]; | ||
| anim2.duration = 1.f; | ||
| anim2.fromValue = [NSNumber numberWithFloat:0.f]; | ||
| anim2.toValue = [NSNumber numberWithFloat:20.f]; | ||
| anim2.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; | ||
| anim2.repeatCount = CGFLOAT_MAX; | ||
| anim2.autoreverses = YES; | ||
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| [customLayer_ addAnimation:anim2 forKey:@"cornerRadius"]; | ||
| } | ||
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| @end |
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