本文实例为大家分享了iOS全局跑马灯制作方法，供大家参考，具体内容如下
思路：
1.创建一个单例
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+ (instancetype)shareManager { static CCPaomaView *pModel = nil; static dispatch_once_t once; dispatch_once(&once, ^{ pModel = [[CCPaomaView alloc]initWithFrame:CGRectMake(0, 0, KScreenWidth, 0.0468 *KScreenHeight)]; }); return pModel;} |
2.把接收的数据存在本地的 plist，不适用于大量数据，每次读取第一个数据，读取完成删除整个 plist，再把剩下的重新存进 plist
3.根据动画代理，监听动画执行结束，将动画实例置为 nil
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- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag{ NSLog(@"%@",[self.paomaLabel.layer animationForKey:@"paoMaDeng"]); if ([self.paomaLabel.layer animationForKey:@"paoMaDeng"] == anim) { //移除第一组数据 [_array removeObjectAtIndex:0]; //移除整个 plist [CCPaomaModel removePaomaPlist]; //重新写入 [_array writeToFile:[CCPaomaModel filename] atomically:YES]; //动画停止之后，将实例置为 nil _pmAniamtion = nil; //数组为空之后移除跑马灯 if (_array.count > 0) { [self showPaomaView:self.superview]; }else{ self.hidden = YES; [self removeFromSuperview]; } NSLog(@"%@",self.array); }} |
4.判断动画实例是否为空，使得切换界面，跑马灯继续，而不是重新开始
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- (void)paomaAniamtion:(CGFloat)count{ //判断动画实例存不存在，存在继续，不存在即创建 if (_pmAniamtion == nil) { _pmAniamtion = [CABasicAnimation animation]; _pmAniamtion.keyPath = @"transform.translation.x"; CGFloat W = CGRectGetWidth(_paomaLabel.bounds); _pmAniamtion.fromValue = @(W); _pmAniamtion.toValue = @(-W); _pmAniamtion.duration = _aniTime; _pmAniamtion.repeatCount = count; _pmAniamtion.removedOnCompletion = NO; //动画结束不移除 _pmAniamtion.fillMode = kCAFillModeForwards; //动画结束会保持结束的状态 _pmAniamtion.delegate = self; //设置代理 [_paomaLabel.layer addAnimation:_pmAniamtion forKey:@"paoMaDeng"]; }else{ _pmAniamtion.repeatCount = count; }} |
5.切换界面，暂停、恢复动画
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#pragma mark -- 界面出现、消失，创建、恢复、暂停动画- (void)viewWillAppear:(BOOL)animated { [_paomaView showPaomaView:self.view]; [_paomaView resumeAnimation];}- (void)viewWillDisappear:(BOOL)animated { [_paomaView pauseAniamtion];} |
话不多说，github 见代码
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
