title: button should fire the action until I keep the button down
body: <p>I have UIscrollview in which I have placed images.I use the buttons(touch down) to move the position of the images by 5pixels  inside the scroll view…..Button fires the action only if I repeatedly touches the buttons ( it moves the images to 5pixels if I touches the button again and again) I want my button to fire the action until I keep the button down (it should moves the images  until I release the button)…</p>
  
  <p>Is there any possibility to scroll the UIscrollview by means of button click? </p>