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【ObjC】心跳动画

作者:昶福 / 发布于2014/11/7/ 835


	// 心跳动画
	+ (void)heartbeatView:(UIView *)view duration:(CGFloat)fDuration
	{
	 [[self class] heartbeatView:view duration:fDuration maxSize:1.4f durationPerBeat:0.5f];
	}
	+ (void)heartbeatView:(UIView *)view duration:(CGFloat)fDuration maxSize:(CGFloat)fMaxSize durationPerBeat:(CGFloat)fDurationPerBeat
	{
	 if (view && (fDurationPerBeat > 0.1f))
	 {
	 CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];
	
	 CATransform3D scale1 = CATransform3DMakeScale(0.8, 0.8, 1);
	 CATransform3D scale2 = CATransform3DMakeScale(fMaxSize, fMaxSize, 1);
	 CATransform3D scale3 = CATransform3DMakeScale(fMaxSize - 0.3f, fMaxSize - 0.3f, 1);
	 CATransform3D scale4 = CATransform3DMakeScale(1.0, 1.0, 1);
	
	 NSArray *frameValues = [NSArray arrayWithObjects:
	 [NSValue valueWithCATransform3D:scale1],
	 [NSValue valueWithCATransform3D:scale2],
	 [NSValue valueWithCATransform3D:scale3],
	 [NSValue valueWithCATransform3D:scale4],
	 nil];
	
	 [animation setValues:frameValues];
	
	 NSArray *frameTimes = [NSArray arrayWithObjects:
	 [NSNumber numberWithFloat:0.05],
	 [NSNumber numberWithFloat:0.2],
	 [NSNumber numberWithFloat:0.6],
	 [NSNumber numberWithFloat:1.0],
	 nil];
	 [animation setKeyTimes:frameTimes];
	
	 animation.fillMode = kCAFillModeForwards;
	 animation.duration = fDurationPerBeat;
	 animation.repeatCount = fDuration/fDurationPerBeat;
	
	 [view.layer addAnimation:animation forKey:@"heartbeatView"];
	 }else{}
	}

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　心跳动画　

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