use Viewpager to increment variable

Question

well what I wanted was for my Viewpager to increment a variable within the Activity in which it was executed. Is that possible? just find documentation for different layouts

my application has 1 page that I simulate others, not to load too much and for needing 60 pages, I created a single layout, that when the user changes page I increment a global variable that changes all my textviews and button texts according to the information contained in the database. so I wanted to use this Viewpager to increment this variable and so "change the page"

Answer 1

Well, what I did very quickly here was totally based on example that I pointed out to you in the comment. So, to simplify, I suggest following the beginning of the example in which he mounts the ViewPager.

Done this, as you will have only one Fragment but with different data, in the class Screenslidepagefragment add a parameter and the constructor by passing the page number:

private int position;

public ScreenSlidePageFragment(int position) {
    this.position = position;
}

In this same class, in onCreateView you already have the page number and do what needs to be done using the database and etc.

Returning now on the Screenslidepagerarpter, you need to pass the page number on your new constructor, so now its Adapter:

private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
    public ScreenSlidePagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int position) {
        return new ScreenSlidePageFragment(position);
    }

    @Override
    public int getCount() {
        return NUM_PAGES;
    }
}

You can do the download of this project I did and test yourself (ignore the project name).