2014/10/15 下午 10:15:12

iphone Programming Glossary: uiacceleration

How to determine the direction of a iPhone shake

http://stackoverflow.com/questions/1018770/how-to-determine-the-direction-of-a-iphone-shake

direction of the shake by the sign of the total acceleration. void accelerometer UIAccelerometer acel didAccelerate UIAcceleration aceler if fabsf aceler.x 1.5 shake YES NSTimeInterval myInterval .75 NSTimer scheduledTimerWithTimeInterval myInterval target..

How to stop responding to a shake before a button is pressed?

http://stackoverflow.com/questions/11865161/how-to-stop-responding-to-a-shake-before-a-button-is-pressed

i am currently making a iPhone app and a animation reacts to a small shake this is my code static BOOL SJHShaking UIAcceleration last UIAcceleration current double threshold double deltaX fabs last.x current.x deltaY fabs last.y current.y deltaZ fabs.. making a iPhone app and a animation reacts to a small shake this is my code static BOOL SJHShaking UIAcceleration last UIAcceleration current double threshold double deltaX fabs last.x current.x deltaY fabs last.y current.y deltaZ fabs last.z current.z return.. UIAccelerometer sharedAccelerometer .delegate self void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration if self.lastAction if hasBeenShaken SJHShaking self.lastAction acceleration 0.7 hasBeenShaken YES animation.animationImages..

How do you implement a Highpass filter for the IPhone accelerometer?

http://stackoverflow.com/questions/142944/how-do-you-implement-a-highpass-filter-for-the-iphone-accelerometer

Thanks iphone share improve this question From the idevkit.com forums #define kFilteringFactor 0.1 static UIAccelerationValue rollingX 0 rollingY 0 rollingZ 0 void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration.. UIAccelerationValue rollingX 0 rollingY 0 rollingZ 0 void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration Subtract the low pass value from the current value to get a simplified high pass filter rollingX acceleration.x..

How to program smooth movement with the accelerometer like a labyrinth game on iPhone OS?

http://stackoverflow.com/questions/2272969/how-to-program-smooth-movement-with-the-accelerometer-like-a-labyrinth-game-on-i

and does lots of jittery movements around everywhere. void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration deviceTilt.x 0.01 deviceTilt.x 1.0 0.01 acceleration.x deviceTilt.y 0.01 deviceTilt.y 1.0 0.01 acceleration.y..

Cocos2d iPhone: Rotate Sprite using Accelerometer

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

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.. 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 myViewName.. 60.0f also add the following function to your .m file void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration accelerationX acceleration.x kFilteringFactor accelerationX 1.0 kFilteringFactor accelerationY acceleration.y..

Tap pressure strength detection using accelerometer

http://stackoverflow.com/questions/5179426/tap-pressure-strength-detection-using-accelerometer

self #pragma #pragma UIAccelerometerDelegate methods void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration int sz sizeof pressureValues sizeof pressureValues 0 set current pressure value pressureValues currentPressureValueIndex..

Accelerometer Low Pass Filtering

http://stackoverflow.com/questions/6942626/accelerometer-low-pass-filtering

a low pass filter to it by changing the original code void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration HypnosisView hv HypnosisView self view hv setXShift 10.0 acceleration x hv setYShift 10.0 acceleration y hv.. 10.0 acceleration y hv setNeedsDisplay to this void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration HypnosisView hv HypnosisView self view float xShift hv xShift 0.8 accel x 2.0 float yShift hv yShift 0.8 accel.. the following code #define kFilteringFactor 0.1 void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration Use a basic low pass filter to keep only the gravity component of each axis. accelX acceleration.x kFilteringFactor..

Lock Unlock events iphone

http://stackoverflow.com/questions/706344/lock-unlock-events-iphone

nil repeats NO 2 seconds for wiggle Deprecated in iOS5 void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration NSLog @ STATUS Update from accelerometer _notActiveTimer invalidate _notActiveTimer NSTimer scheduledTimerWithTimeInterval..

Tap pressure strength detection using CPBPressureTouchGestureRecognizer

http://stackoverflow.com/questions/8079580/tap-pressure-strength-detection-using-cpbpressuretouchgesturerecognizer

object nil #pragma #pragma UIAccelerometerDelegate methods void accelerateNotification NSNotification notification UIAcceleration acceleration CPBAcceleromterDelegate sharedCPBAcceleromterDelegate acceleration int sz sizeof pressureValues sizeof pressureValues.. @ accellerationEvent @interface CPBAcceleromterDelegate NSObject UIAccelerometerDelegate @property nonatomic retain UIAcceleration acceleration CPBAcceleromterDelegate sharedCPBAcceleromterDelegate void accelerometer UIAccelerometer accelerometer didAccelerate.. CPBAcceleromterDelegate sharedCPBAcceleromterDelegate void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration @end CPBAcceleromterDelegate.m iPan Created by Anthony Picciano on 1 25 12. Copyright c 2012 Crispin Porter..

How can I rotate an image in response to the iPhone's accelerometer?

http://stackoverflow.com/questions/954711/how-can-i-rotate-an-image-in-response-to-the-iphones-accelerometer

angle how can i do it the code anyone can help me... void accelerometer UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration rollingX acceleration.x 0.1 rollingX 1.0 0.1 rollingY acceleration.y 0.1 rollingY 1.0 0.1 float xx rollingX..

Detect iPhone screen orientation

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

I get readings varying wildly a few times a second. void checkOrientation UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration int accelerationX acceleration.x kfilteringFactor accelerationX 1.0 kfilteringFactor int accelerationY acceleration.y..