Send all the touch points available including the historical points when a motion event is received. As sendTouchEvent is called with a MotionEvent that also has access to the historical points then it should send these as touch events too in order to ensure that this information can be received by the application unless compression is explicitly desired.

As indicated in the documentation here:

https://developer.android.com/reference/android/view/MotionEvent.html#getHistorySize()

There is data that is not being passed on, so it would be good to pass this on to the application to decide what to do with it.