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網上找了幾個,但都有cup暴漲的情況發生,于是利用CABasicAnimation 簡單的實現一個跑馬燈,實現簡單,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"]; // 動畫選項的設定 animation.duration = 2; // 持續時間 animation.repeatCount = MAXFLOAT; // 重復次數 animation.removedOnCompletion = NO; animation.autoreverses = NO; // 起始幀和終了幀的設定 animation.fromValue = [NSValue valueWithCGPoint:CGPointMake(AD.layer.position.x, 30*WPSCREEN_HIGTH_RATIO)]; // 起始幀 animation.toValue = [NSValue valueWithCGPoint:CGPointMake(AD.layer.position.x, AD.layer.position.y-20*WPSCREEN_HIGTH_RATIO)]; // 終了幀 // 添加動畫 [AD.layer addAnimation:animation forKey:@"AnimationMoveY"]; // [headImage.layer addAnimation:animation forKey:@"AnimationMoveY"]; } -(void)headimage{ animationhead = [CABasicAnimation animationWithKeyPath:@"position"]; // 動畫選項的設定 animationhead.duration = 2; // 持續時間 animationhead.repeatCount = MAXFLOAT; // 重復次數 animationhead.removedOnCompletion = NO; animationhead.autoreverses = NO; // 起始幀和終了幀的設定 animationhead.fromValue = [NSValue valueWithCGPoint:CGPointMake(headImage.layer.position.x, 30*WPSCREEN_HIGTH_RATIO)]; // 起始幀 animationhead.toValue = [NSValue valueWithCGPoint:CGPointMake(headImage.layer.position.x, headImage.layer.position.y-20*WPSCREEN_HIGTH_RATIO)]; // 終了幀 // 添加動畫 [headImage.layer addAnimation:animationhead forKey:@"AnimationMoveY"]; }
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持億速云。
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