IIC简介 I 2 C I^2C I2C通讯协议是由Phiilps公司开发的,由于它引脚少,硬件实现简单,可扩展性强没不需要USART、CAN等通讯协议的外部收法设备,现在被广泛地使用在系统内多个集成电路(IC)间的通讯。
IIC物理…
VelocityTracker是一个什么东西呢,查看VelocityTracker源代码发现有如下注释: [html] view plain copy print ? /** * Helper for tracking the velocity of touch events, for implementing * flinging and other such gestures. *…
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| void | addMovement(MotionEvent event)
Add a user’s movement to the tracker.
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| void | clear()
Reset the velocity tracker back to its initial state.
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| void | computeCurrentVelocity(int units, float maxVelocity)
Compu…