Auto scroll in Scrollview

Question

How to auto scroll bottom-to-top at a particular position in ScrollView to make it look like as Drag-to-scroll-up in ScrollView?

Basically, I want to create a wheel that spins from bottom to top with smoothly.

http://developer.android.com/reference/android/widget/AbsListView.html#smoothScrollToPositionFromTop%28int,%20int%29 — Jaimin Modi, Oct 28 '15 at 04:50

score 2 · Answer 1 · answered Oct 28 '15 at 04:53

You can make scrollview to scroll and add some sleep for smooth scrolling :

private void sendScroll(ScrollView scrollView){
        final Handler handler = new Handler();
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {Thread.sleep(100);} catch (InterruptedException e) {}
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        scrollView.fullScroll(View.FOCUS_UP);
                    }
                });
            }
        }).start();
    }

This works, but this approach is simpler using scroll.post instead. https://stackoverflow.com/a/4524131/5163090 — John A Qualls, May 02 '19 at 22:42

score -1 · Answer 2 · edited Oct 28 '15 at 05:15

-1

Add the below lines :

scroll.scrollTo(0, scroll.getBottom());

in your XML add:

android:focusable="true"
android:focusableInTouchMode="true"

edited Oct 28 '15 at 05:15

Aditya Vyas-Lakhan

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answered Oct 28 '15 at 04:56

Murali Kumar

27
1

Auto scroll in Scrollview

2 Answers2