ios removeAllAnimations 不工作

Question

我有一个永远的动画，但我想在某个时候停止它我尝试了 removeAllAnimations 但它没有用。这是我的代码。

[self.backgroundImageView.layer removeAllAnimations];

-(void)animateToLeft{
    if(isInCenter){
        [UIView animateWithDuration:10.0f animations:^{
            backgroundImageView.frame = CGRectMake(kLeftX, 0, kBackgroundWidth, kBackgroundHeight);
        }completion:^(BOOL finished) {
            [self animateToRight];
        }];
         isInCenter = NO;
    }
    else{
        [UIView animateWithDuration:20.0f animations:^{
            backgroundImageView.frame = CGRectMake(kLeftX, 0, kBackgroundWidth, kBackgroundHeight);
        }completion:^(BOOL finished) {
            [self animateToRight];
        }];
    }

}

-(void)animateToRight{
    [UIView animateWithDuration:20.0f animations:^{
        backgroundImageView.frame = CGRectMake(kRightX, 0, kBackgroundWidth, kBackgroundHeight);
    }completion:^(BOOL finished) {
        [self animateToLeft];
    }];
}

Answer 1

This will not work in your situation.

因为 [self.backgroundImageView.layer removeAllAnimations]; 这将删除所有已经由 [self.backgroundImageView.layer addAnimation:/*CABasicAnimation 应该添加在这里*/];

您可以通过在完成时设置 bool 变量来停止此循环，然后检查 bool 变量。