51 lines
2.2 KiB
Objective-C
Executable File
51 lines
2.2 KiB
Objective-C
Executable File
//
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// DGActivityIndicatorDoubleBounceAnimation.m
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// DGActivityIndicatorExample
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//
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// Created by Danil Gontovnik on 5/23/15.
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// Copyright (c) 2015 Danil Gontovnik. All rights reserved.
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//
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#import "DGActivityIndicatorDoubleBounceAnimation.h"
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@implementation DGActivityIndicatorDoubleBounceAnimation
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#pragma mark -
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#pragma mark DGActivityIndicatorAnimation Protocol
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- (void)setupAnimationInLayer:(CALayer *)layer withSize:(CGSize)size tintColor:(UIColor *)tintColor {
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NSTimeInterval beginTime = CACurrentMediaTime();
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CGFloat oX = (layer.bounds.size.width - size.width) / 2.0f;
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CGFloat oY = (layer.bounds.size.height - size.height) / 2.0f;
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for (int i = 0; i < 2; i++) {
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CALayer *circle = [CALayer layer];
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circle.frame = CGRectMake(oX, oY, size.width, size.height);
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circle.anchorPoint = CGPointMake(0.5f, 0.5f);
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circle.opacity = 0.5f;
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circle.cornerRadius = size.height / 2.0f;
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circle.transform = CATransform3DMakeScale(0.0f, 0.0f, 0.0f);
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circle.backgroundColor = tintColor.CGColor;
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CAKeyframeAnimation *transformAnimation = [self createKeyframeAnimationWithKeyPath:@"transform"];
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transformAnimation.repeatCount = HUGE_VALF;
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transformAnimation.duration = 2.0f;
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transformAnimation.beginTime = beginTime - (1.0f * i);
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transformAnimation.keyTimes = @[@(0.0f), @(0.5f), @(1.0f)];
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transformAnimation.timingFunctions = @[[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut],
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[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut],
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[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
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transformAnimation.values = @[[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.0f, 0.0f, 0.0f)],
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[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.0f, 1.0f, 0.0f)],
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[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.0f, 0.0f, 0.0f)]];
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[layer addSublayer:circle];
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[circle addAnimation:transformAnimation forKey:@"animation"];
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}
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}
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@end
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