- pointerIndex
- Raw index of pointer to retrieve. Value may be from 0 (the first pointer that is down) to MotionEvent.PointerCount-1.
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Returns a scaled value of the approximate size for the given pointer index (use MotionEvent.GetPointerId(int) to find the pointer identifier for this index). This represents some approximation of the area of the screen being pressed; the actual value in pixels corresponding to the touch is normalized with the device specific range of values and scaled to a value between 0 and 1. The value of size can be used to determine fat touch events.