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> @interfaceLoopView:UIView @property(nonatomic,strong)NSString*Iformation; @property(nonatomic,strong)NSString*Image; @end
#import"LoopView.h"
#import"UIImageView+WebCache.h"
@interfaceLoopView(){
UILabel*AD;
UIImageView*headImage;
CABasicAnimation*animation;
CABasicAnimation*animationhead;
}
@end
@implementationLoopView
-(instancetype)initWithFrame:(CGRect)frame{
self=[superinitWithFrame:frame];
if(self){
AD=[[UILabelalloc]initWithFrame:CGRectMake(28*WPSCREEN_WIDTH_RATIO,0,self.frame.size.width,self.frame.size.height)];
[selfaddSubview:AD];
AD.textColor=TJXColor(146,152,169);
AD.font=[UIFontfontWithName:@"Gotham-Book"size:12*WPSCREEN_WIDTH_RATIO];
AD.textAlignment=NSTextAlignmentLeft;
headImage=[[UIImageViewalloc]initWithFrame:CGRectMake(0,0,20*WPSCREEN_WIDTH_RATIO,20*WPSCREEN_WIDTH_RATIO)];
[selfaddSubview:headImage];
headImage.layer.cornerRadius=10;
headImage.layer.masksToBounds=YES;
[selfsssss];
[selfheadimage];
}
returnself;
}
-(void)setIformation:(NSString*)Iformation{
AD.text=Iformation;
}
-(void)setImage:(NSString*)Image{
[headImagesd_setImageWithURL:[NSURLURLWithString:Image]];
}
-(void)sssss{
animation=[CABasicAnimationanimationWithKeyPath:@"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=[NSValuevalueWithCGPoint:CGPointMake(AD.layer.position.x,30*WPSCREEN_HIGTH_RATIO)];//起始帧
animation.toValue=[NSValuevalueWithCGPoint:CGPointMake(AD.layer.position.x,AD.layer.position.y-20*WPSCREEN_HIGTH_RATIO)];//终了帧
//添加动画
[AD.layeraddAnimation:animationforKey:@"AnimationMoveY"];
//[headImage.layeraddAnimation:animationforKey:@"AnimationMoveY"];
}
-(void)headimage{
animationhead=[CABasicAnimationanimationWithKeyPath:@"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=[NSValuevalueWithCGPoint:CGPointMake(headImage.layer.position.x,30*WPSCREEN_HIGTH_RATIO)];//起始帧
animationhead.toValue=[NSValuevalueWithCGPoint:CGPointMake(headImage.layer.position.x,headImage.layer.position.y-20*WPSCREEN_HIGTH_RATIO)];//终了帧
//添加动画
[headImage.layeraddAnimation:animationheadforKey:@"AnimationMoveY"];
}
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