2014/10/15 下午 10:13:59

iphone Programming Glossary: setnextpressurevalue

Tap pressure strength detection using accelerometer

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

float maximumPressureRequired @private float pressureValues 30 uint currentPressureValueIndex uint setNextPressureValue @property readonly assign float pressure @property readwrite assign float minimumPressureRequired @property readwrite assign.. sizeof pressureValues 0 set current pressure value pressureValues currentPressureValueIndex sz acceleration.z if setNextPressureValue 0 calculate average pressure float total 0.0f for int loop 0 loop sz loop total pressureValues loop float average total.. loop 0 loop sz loop total pressureValues loop float average total sz start with most recent past pressure sample if setNextPressureValue KNumberOfPressureSamples float mostRecent pressureValues currentPressureValueIndex 1 sz pressure fabsf average mostRecent..

Tap pressure strength detection using CPBPressureTouchGestureRecognizer

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

float maximumPressureRequired @private float pressureValues 50 uint currentPressureValueIndex uint setNextPressureValue @property readonly assign float pressure @property readwrite assign float minimumPressureRequired @property readwrite assign.. sizeof pressureValues 0 set current pressure value pressureValues currentPressureValueIndex sz acceleration.z if setNextPressureValue 0 calculate average pressure float total 0.0f for int loop 0 loop sz loop total pressureValues loop float average total.. loop 0 loop sz loop total pressureValues loop float average total sz start with most recent past pressure sample if setNextPressureValue KNumberOfPressureSamples float mostRecent pressureValues currentPressureValueIndex 1 sz pressure fabsf average mostRecent..