如何讓我的動畫在viewWillAppear或viewDidAppear

Question

上運行viewWillAppear或viewDidAppear被調用時，如何讓我的動畫再次運行？

這是我的動畫：

bounceAnimation =[CABasicAnimation animationWithKeyPath:@"transform.scale"]; 
[bounceAnimation setToValue:[NSNumber numberWithFloat:1.4f]]; 
bounceAnimation.duration = 1; 
bounceAnimation.repeatCount = 100000; 
bounceAnimation.autoreverses = YES; 
bounceAnimation.fillMode =kCAMediaTimingFunctionEaseInEaseOut; 
bounceAnimation.removedOnCompletion = YES; 
[startBtn.layer addAnimation:bounceAnimation forKey:@"bounceAnimation"]; 

Answer 1

你是如何調用你的動畫？

就目前而言，我想你既可以

1）把上述代碼放到一個方法，並再次呼籲從viewDidAppear該方法。

2）或者，也許更好...通過

bounceAnimation.removedOnCompletion = NO; 

爲您的動畫沒有removedOnCompletion屬性，當你準備好再次運行，調用您之前添加相同（保留）動畫。