Objective c 如何使用不带精灵套件的CoreMotion向左和向右倾斜图像

如何使用不带精灵套件的CoreMotion向左和向右倾斜图像

大家好

我目前正在研究如何在没有精灵套件的情况下使用核心运动框架。在web上找不到任何。当iPhone向右倾斜时，有人能演示如何将图像向右移动吗。当它不使用雪碧套件而向左倾斜时

 this is what i have so far. does this look correct?

CMMotionManager *motionManager = [[CMMotionManager alloc] init];
motionManager.deviceMotionUpdateInterval = 1.0/10.0;

if (!motionManager.isDeviceMotionAvailable) {

    CGPointMake(Bird.center.x-1, Bird.center.y-upmovement);

---

您已关闭运动管理器的构造，但忘记开始获取更新

下面是一个基于您提供的内容的工作示例

CMMotionManager* motionManager = [[CMMotionManager alloc] init];
motionManager.deviceMotionUpdateInterval = 1/27; // 27 frames per second

// Start the motion manager with our queue
[motionManager startDeviceMotionUpdatesToQueue: [[NSOperationQueue alloc] init]
                                   withHandler: ^(CMDeviceMotion *motion, NSError *error) {
    CGFloat multiplier;
    CGPoint newPosition;
    if ( !motionManager || !Bird ) //make sure it is safe to invoke the motion manager, and the view.
        return;

    // The Movement Multiplier
    multiplier = 200;

    // The center point of which the view will reside
    newPosition = Bird.superview.center;

    // Calculate our new position
    newPosition.x += motion.attitude.roll * multiplier;
    newPosition.y += motion.attitude.pitch * multiplier;

    // Move the view in the main thread so it can be rendered correctly.
    dispatch_async( dispatch_get_main_queue(), ^{
        Bird.center = newPosition;
    });

}];

它应该在x轴和y轴上移动鸟瞰图