44 lines
1.7 KiB
Objective-C
Executable File
44 lines
1.7 KiB
Objective-C
Executable File
//
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// DGActivityIndicatorLineScalePartyAnimation.m
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// DGActivityIndicatorExample
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//
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// Created by Nguyen Vinh on 7/20/15.
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// Copyright (c) 2015 Danil Gontovnik. All rights reserved.
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//
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#import "DGActivityIndicatorLineScalePartyAnimation.h"
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@implementation DGActivityIndicatorLineScalePartyAnimation
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- (void)setupAnimationInLayer:(CALayer *)layer withSize:(CGSize)size tintColor:(UIColor *)tintColor {
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NSArray *durations = @[@1.26f, @0.43f, @1.01f, @0.73f];
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NSArray *beginTimes = @[@0.77f, @0.29f, @0.28f, @0.74f];
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CAMediaTimingFunction *timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault];
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CGFloat lineSize = size.width / 7;
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CGFloat x = (layer.bounds.size.width - size.width) / 2;
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CGFloat y = (layer.bounds.size.height - size.height) / 2;
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// Animation
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CAKeyframeAnimation *animation = [self createKeyframeAnimationWithKeyPath:@"transform.scale"];
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animation.keyTimes = @[@0.0f, @0.5f, @1.0f];
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animation.values = @[@1.0f, @0.5f, @1.0f];
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animation.timingFunctions = @[timingFunction, timingFunction];
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animation.repeatCount = HUGE_VALF;
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for (int i = 0; i < 4; i++) {
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CAShapeLayer *line = [CAShapeLayer layer];
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UIBezierPath *linePath = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, lineSize, size.height) cornerRadius:lineSize / 2];
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animation.duration = [durations[i] floatValue];
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animation.beginTime = [beginTimes[i] floatValue];
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line.fillColor = tintColor.CGColor;
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line.path = linePath.CGPath;
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[line addAnimation:animation forKey:@"animation"];
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line.frame = CGRectMake(x + lineSize * 2 * i, y, lineSize, size.height);
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[layer addSublayer:line];
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}
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}
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@end
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