2014/10/15 下午 10:03:29

iphone Programming Glossary: accelerationx

Cocos2d iPhone: Rotate Sprite using Accelerometer

http://stackoverflow.com/questions/3826304/cocos2d-iphone-rotate-sprite-using-accelerometer

share improve this question Firs off in your h file you need to make the following variables UIAccelerationValue accelerationX UIAccelerationValue accelerationY float currentRawReading float calibrationOffset Also ensure that your h file has @interface.. function to your .m file void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration accelerationX acceleration.x kFilteringFactor accelerationX 1.0 kFilteringFactor accelerationY acceleration.y kFilteringFactor accelerationY.. UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration accelerationX acceleration.x kFilteringFactor accelerationX 1.0 kFilteringFactor accelerationY acceleration.y kFilteringFactor accelerationY 1.0 kFilteringFactor keep the raw reading..

Detect iPhone screen orientation

http://stackoverflow.com/questions/999686/detect-iphone-screen-orientation

few times a second. void checkOrientation UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration int accelerationX acceleration.x kfilteringFactor accelerationX 1.0 kfilteringFactor int accelerationY acceleration.y kfilteringFactor accelerationY.. accelerometer didAccelerate UIAcceleration acceleration int accelerationX acceleration.x kfilteringFactor accelerationX 1.0 kfilteringFactor int accelerationY acceleration.y kfilteringFactor accelerationY 1.0 kfilteringFactor float currentRawReading.. acceleration.y kfilteringFactor accelerationY 1.0 kfilteringFactor float currentRawReading atan2 accelerationY accelerationX 180 M_PI NSLog @ Angle f currentRawReading Sample from log while phone is flat 2009 06 16 17 29 07.987 373 207 Angle 0.162292..