如何通过单击按钮更改 viewpager2 默认页面？

Question

I Create a viewpager2. There has 5 page and fast page has default. I create a button in another activity and i want when i click the button then it go to viewpage2 and show as default second page. How can i do it?

Answer 1

If you need to change the active tab of ViewPager2 programmatically then use:

viewPager2.setCurrentItem(1 /* your tab index */)