SIGABRT消息仅适用于iOS5

Question

我正面临着我的应用程序发生的奇怪崩溃，只发生在iOS5上。问题似乎与我的核心动画方法相反，因为当我没有为aAnimation.repeatCount设置值或0时它正在工作，但是当它旋转时我使用带有错误的get SIGABRT消息： - [NSConcreteValue doubleValue]：无法识别的选择器发送到当我触摸设备/模拟器屏幕时，实例为0x9628100。

任何帮助将不胜感激

我的观点定义

- (void)loadView {
    CGRect screenRect = [[UIScreen mainScreen] applicationFrame];

    UIView  *contentView = [[UIView alloc] initWithFrame:screenRect];
    contentView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

    self.view = contentView;
    [contentView release];
}

设置子视图

- (void)setUpPlacardView:(NSInteger)picture {
    // Create the placard view -- its init method calculates its frame based on its image
    PlacardView *aPlacardView = [[PlacardView alloc] init:picture asColor:asColor];
    aPlacardView.desaturation = kotucHue;
    self.placardView = aPlacardView;
    [aPlacardView release];
    [self.view addSubview:placardView];
}

SubView定义

@interface PlacardView : UIView {


    UIImage                 *placardImage;
    float                   saturation;
    UIColor                 *barva;
    BOOL                    switchMode;



}

@property (nonatomic, retain) UIImage *placardImage;
@property (nonatomic)       float     desaturation;
@property (readwrite) BOOL              switchMode;


// Initializer for this object
- (id)init:(NSInteger)picture asColor:(BOOL)farba;


@end

并进行轮换

- (void)makeKspinning
{
    // Create a transform to rotate in the z-axis
    float radians = 3.120;   
    CATransform3D transform;
    if (rotation) {
        transform = CATransform3DMakeRotation(radians, 0.0, 0.0, 0.0);
    }
    else
        transform = CATransform3DMakeRotation(radians, 0.0, 0.0, 1.0);


    CABasicAnimation *aAnimation;
    aAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];

        CALayer *pLayer = placardView.layer;

        aAnimation.toValue = [NSValue valueWithCATransform3D:transform];
        aAnimation.duration = spinSpeed;
        aAnimation.cumulative = YES;
        aAnimation.repeatCount = HUGE_VALF; 

        [pLayer addAnimation:aAnimation forKey:@"animatePlacardViewToSpin"];

        pLayer.opacity = spinOpacity;
}

Answer 1

我认为问题是您将toValue设置为NSValue，但关键路径为transform.rotation，而不是NSValue。您应该使用transform作为keyPath，或者使用transform.rotation.z（或任何轴）作为keyPath，使用简单的NSNumber作为您的值。