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androidscrollscrollview

Scroll up a ScrollView slowly

The question is "How do i scroll up a ScrollView to top very smoothly and slowly".

In my special case i need to scroll to top in about 1-2 seconds. Ive tried interpolating manually using a Handler (calling scrollTo(0, y)) but that didnt work at all.

I've seen this effect on some bookreader-apps yet, so there must be a way, im sure :D. (Text is very slowly scrolling up to go on reading without touching the screen, doing input).

Solution

  • In 2 seconds move the scroll view to the possition of 2000

    new CountDownTimer(2000, 20) {          

 public void onTick(long millisUntilFinished) {     
   scrollView.scrollTo(0, (int) (2000 - millisUntilFinished)); // from zero to 2000    
 }          

 public void onFinish() {  
 }      

}.start();