iOS使用 CABasicAnimation 实现简单的跑马灯（无cpu暴涨）

网上找了几个，但都有cup暴涨的情况发生，于是利用CABasicAnimation 简单的实现一个跑马灯,实现简单，可自己定制

#import <UIKit/UIKit.h>@interface LoopView : UIView@property（nonatomic,strong）NSString *Iformation;@property（nonatomic,strong）NSString *Image;@end

#import "LoopView.h"#import "UIImageView+WebCache.h"@interface LoopView（）{UILabel *AD;UIImageView *headImage;CABasicAnimation *animation; CABasicAnimation *animationhead;}@end@implementation LoopView-（instancetype）initWithFrame:（CGRect）frame{self = [super initWithFrame:frame];if （self） {AD = [[UILabel alloc]initWithFrame:CGRectMake（28*WPSCREEN_WIDTH_RATIO, 0, self.frame.size.width, self.frame.size.height）];[self addSubview:AD];AD.textColor = TJXColor（146, 152, 169）;AD.font = [UIFont fontWithName:@"Gotham-Book" size:12*WPSCREEN_WIDTH_RATIO];AD.textAlignment = NSTextAlignmentLeft;headImage = [[UIImageView alloc]initWithFrame:CGRectMake（0, 0, 20*WPSCREEN_WIDTH_RATIO, 20*WPSCREEN_WIDTH_RATIO）];[self addSubview:headImage];headImage.layer.cornerRadius = 10;headImage.layer.masksToBounds = YES;[self sssss];[self headimage];}return self;}-（void）setIformation:（NSString *）Iformation{AD.text =Iformation;}-（void）setImage:（NSString *）Image{ [headImage sd_setImageWithURL:[NSURL URLWithString:Image]];}-（void）sssss{animation = [CABasicAnimation animationWithKeyPath:@"position"];// 动画选项的设定animation.duration = 2; // 持续时间animation.repeatCount = MAXFLOAT; // 重复次数animation.removedOnCompletion = NO;animation.autoreverses = NO;// 起始帧和终了帧的设定animation.fromValue = [NSValue valueWithCGPoint:CGPointMake（AD.layer.position.x, 30*WPSCREEN_HIGTH_RATIO）]; // 起始帧animation.toValue = [NSValue valueWithCGPoint:CGPointMake（AD.layer.position.x, AD.layer.position.y-20*WPSCREEN_HIGTH_RATIO）]; // 终了帧// 添加动画[AD.layer addAnimation:animation forKey:@"AnimationMoveY"];//[headImage.layer addAnimation:animation forKey:@"AnimationMoveY"];}-（void）headimage{animationhead = [CABasicAnimation animationWithKeyPath:@"position"];// 动画选项的设定animationhead.duration = 2; // 持续时间animationhead.repeatCount = MAXFLOAT; // 重复次数animationhead.removedOnCompletion = NO;animationhead.autoreverses = NO;// 起始帧和终了帧的设定animationhead.fromValue = [NSValue valueWithCGPoint:CGPointMake（headImage.layer.position.x, 30*WPSCREEN_HIGTH_RATIO）]; // 起始帧animationhead.toValue = [NSValue valueWithCGPoint:CGPointMake（headImage.layer.position.x, headImage.layer.position.y-20*WPSCREEN_HIGTH_RATIO）]; // 终了帧// 添加动画[headImage.layer addAnimation:animationhead forKey:@"AnimationMoveY"];}

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