ONTOUCHLISTENER

agosto 17, 2018 doido 2.0 0 Comments

btn2.setOnTouchListener(new OnTouchListener() { PointF DownPT = new PointF(); PointF StartPT = new PointF(); @Override public boolean onTouch(View v, MotionEvent event) { int eid = event.getAction(); switch (eid) {

case MotionEvent.ACTION_MOVE : PointF mv=new PointF( event.getX() - DownPT.x, event.getY() - DownPT.y); img.setX((int)(StartPT.x+mv.x)); img.setY((int)(StartPT.y+mv.y)); StartPT= new PointF(img.getX(), img.getY()); break;

case MotionEvent.ACTION_DOWN : DownPT.x = event.getX(); DownPT.y = event.getY(); StartPT = new PointF(img.getX(), img.getY() ); break;

case MotionEvent.ACTION_UP : float distance = DownPT.x - event.getX(); if (distance == 0) { break; default : break;} return true;} });