ios - CABasicAnimation 中的内存泄漏

Question

以下代码指向内存分配泄漏(使用分析器中的分配工具)-有人可以指出为什么 -我正在使用 CABAsicAnimation 来旋转 UIImageView

-(void)SetGaugeToValueInAngles: (int)newValue
{

    static int oldValue = 0;

    int delta = newValue - oldValue;

    CABasicAnimation *rotate = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
    [rotate setDelegate:self];
    rotate.fromValue = [NSNumber numberWithFloat:oldValue/57.2958];
    rotate.removedOnCompletion = NO;
    rotate.fillMode = kCAFillModeForwards;

    rotate.toValue = [NSNumber numberWithFloat:  newValue/57.2958];

    rotate.duration = 10.0; // seconds

    [self.UIImageViewPressureMark.layer addAnimation:rotate forKey:nil]; // "key" is optional

    NSLog(@"Old Value %d New Value %d", oldValue, newValue);

    oldValue = newValue;
}

Answer 1

如果将 removeOnCompletion 设置为 NO，图层将保留动画，直到您将其移除。

您应该将 removedOnCompletion 设置为 YES，或者检查图层是否已经有动画并在添加下一个新值时将其移除