加速度计是否适用于iPhone/iPad模拟器?

据我所知,当我在xcode中使用ipad模拟器时,我的应用程序应该触发加速度计事件,但事实并非如此。

我搜索了一下,似乎加速度计没有在模拟器中实现,这是正确的吗?如果是这样,他们究竟为什么会有“硬件-晃动手势”菜单选项?

我的代码如下:

.h文件:

@interface MyViewController : UIViewController <UIPickerViewDataSource, UIPickerViewDelegate, UIAccelerometerDelegate>{
    UIAccelerometer *accelerometer;
    //...other stuff
}
@property (nonatomic, retain) UIAccelerometer *accelerometer;
@end

然后.m文件:

@implementation MyViewController
@synthesize accelerometer;
- (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration {
    NSLog(@"%@", [NSString stringWithFormat:@"%@%f", @"X: ", acceleration.x]);
    NSLog(@"%@", [NSString stringWithFormat:@"%@%f", @"Y: ", acceleration.y]);
    NSLog(@"%@", [NSString stringWithFormat:@"%@%f", @"Z: ", acceleration.z]);
}

- (void)viewDidLoad {
    [super viewDidLoad];
    self.accelerometer = [UIAccelerometer sharedAccelerometer];
    self.accelerometer.updateInterval = .1;
    self.accelerometer.delegate = self;
}
@end

这个看起来对吗?