iOS uses CABasicAnimation to achieve a simple ticker (no cpu surge)
- 2021-10-25 08:03:56
- OfStack
I found a few on the Internet, but all of them have the soaring situation of cup, so I use CABasicAnimation to simply realize a horse race lamp, which is simple to realize and can be customized by myself
#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"];
// Setting of animation options
animation.duration = 2; // Duration
animation.repeatCount = MAXFLOAT; // Number of repetitions
animation.removedOnCompletion = NO;
animation.autoreverses = NO;
// Setting of starting frame and ending frame
animation.fromValue = [NSValue valueWithCGPoint:CGPointMake(AD.layer.position.x, 30*WPSCREEN_HIGTH_RATIO)]; // Start frame
animation.toValue = [NSValue valueWithCGPoint:CGPointMake(AD.layer.position.x, AD.layer.position.y-20*WPSCREEN_HIGTH_RATIO)]; // End frame
// Add Animation
[AD.layer addAnimation:animation forKey:@"AnimationMoveY"];
// [headImage.layer addAnimation:animation forKey:@"AnimationMoveY"];
}
-(void)headimage{
animationhead = [CABasicAnimation animationWithKeyPath:@"position"];
// Setting of animation options
animationhead.duration = 2; // Duration
animationhead.repeatCount = MAXFLOAT; // Number of repetitions
animationhead.removedOnCompletion = NO;
animationhead.autoreverses = NO;
// Setting of starting frame and ending frame
animationhead.fromValue = [NSValue valueWithCGPoint:CGPointMake(headImage.layer.position.x, 30*WPSCREEN_HIGTH_RATIO)]; // Start frame
animationhead.toValue = [NSValue valueWithCGPoint:CGPointMake(headImage.layer.position.x, headImage.layer.position.y-20*WPSCREEN_HIGTH_RATIO)]; // End frame
// Add Animation
[headImage.layer addAnimation:animationhead forKey:@"AnimationMoveY"];
}