Here you can find the source of transformEvent(MotionEvent e, Matrix m)
public static MotionEvent transformEvent(MotionEvent e, Matrix m)
//package com.java2s; import android.graphics.Matrix; import android.view.MotionEvent; public class Main { public static MotionEvent transformEvent(MotionEvent e, Matrix m) { // We try to use the new transform method if possible because it uses // less memory. return transformEventNew(e, m); }/*from ww w. j a v a2 s . c o m*/ private static MotionEvent transformEventNew(MotionEvent e, Matrix m) { MotionEvent newEvent = MotionEvent.obtain(e); newEvent.transform(m); return newEvent; } }