title: How to detect touch event that doesn't move but holding a finger on the screen
body: <p>I want to make some rhythm games with android and want to implement slide notes.
  I want to detect touch event that finger stays on the screen but it doesn't move.
  However, MotionEvent detects only Action_down, Action_move and Action_up.
  How can I solve this problem? I tried to use thread but it's cost is too big for multi-touch event.</p>
  <p>Thank you for all you guys to read this questions.</p>