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我已经在 iOS 6.0 和第 4 代 iPhone 和 iPod touch 上成功使用了 CMMotionManager。新 iPhone 5 的更新间隔似乎是指定的两倍。如果 kTIME_INTERVAL 为 0.0125，我看到的实际间隔约为 0.021。

当我将间隔设置为 0.0125 / 2.0 时，实际的计时器间隔接近 0.013，这正是我想要的。

有人在 iPhone 5 上看到与 CMMotionManager 类似的行为吗？

CMMotionManager *motion;

motion.deviceMotionUpdateInterval = kTIME_INTERVAL; // iPhone 4 and 4th gen devices

if (isDevice5thGeneration) {
    // iPhone 5 iOS 6 seems to run motion at twice the update interval (half as fast), so need to set interval at half to get desired interval
    motion.deviceMotionUpdateInterval = motion.deviceMotionUpdateInterval / 2.0; // iPhone 5 KLUDGE 
}
NSLog(@"Start motion recording deviceMotionUpdateInterval: %f", motion.deviceMotionUpdateInterval);

NSOperationQueue *queue = [[NSOperationQueue currentQueue] retain];

CMDeviceMotionHandler motionHandler = ^(CMDeviceMotion *deviceMotion, NSError *error) {
    //NSLog(@"motion handler");
    if (isRecordingMotion) {
        [self processMotion:deviceMotion];
    }
};
[motion startDeviceMotionUpdatesToQueue:queue withHandler:motionHandler];

提前致谢！

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