如何使用 RecyclerView 打开 ViewPager 中的特定页面？

Question

I have a list of items in RecyclerView, I want that when clicking on each item it goes to specific pages in a ViewPager in another activity.

Answer 1

I'll assume you already have a listener for the item click on a recyclerview. When you send an intent for opening the other activity, you can add extra information , for example:

        Intent intent = new Intent(this, ActivityWithPager.class);
        int pageIndex =  2; // some page index you want to go to
        intent.putExtra("page_number", pageIndex );
        startActivity(intent);

Then, on your second activity, where you can access the ViewPager , you can go to the page using:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // ..... do your other stuff

    // Get the Intent that started this activity and extract the page index
    Intent intent = getIntent();
    int pageIndex= intent.getIntExtra("page_number", 0); // Zero as default page

    // Tell the view pager to set the page index as current item
    viewPager.setCurrentItem(pageIndex);
}