CODEWITHSUNDEEP
androidandroid-recyclerviewandroid-handlerandroid-scroll
Ali Elahi
Ali Elahi

Reputation: 151

Auto smooth scrolling in Recycler view

I use smooth recyclerView.smoothScrollBy(int dx , int dy) for scrolling. Put this method in handler and call the handler every 50 miliseconds. my speed range is 0 - 10. Runnable of handle scrolling is 

   private Runnable runnableMove = new Runnable() {
    @Override
    public void run() {
        recyclerView.smoothScrollBy(0,speed * 4);
        handler.postDelayed(this,50);   
   };

Suddenly scrolling starts to lagging. And i must stop scrolling and start it again.

This is important and I sync 2 device and more (maybe 4 , 5) with the same item in recycler view and I need the scroll position of any of them to sync them together.

Most of the time one or two of the devices is slower or faster in scrolling. I need all device scroll with the same speed. How can I solve this problem in android.

Upvotes: 1

Views: 1310

Answers (2)

Ali Elahi
Ali Elahi

Reputation: 151

I found this method and it works for me:

recyclerView.smoothScrollBy(dx, dy, new LinearInterpolator(), time);

Upvotes: 2

ChristianoBolla
ChristianoBolla

Reputation: 658

You could try to use an ObjectAnimator.

ObjectAnimator.ofInt(recyclerView, "scrollY", 1000).setDuration(12000).start()

Start this simultaneously on all devices and they should be in sync without any lag.

Upvotes: 1

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