Viewpager pages with different layouts but same fragment class

问题

Using a ViewPager, I'm working on a guide that tells the user how to use my app.

This is how i currently add/setup the pages:

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

    @Override
    public Fragment getItem(int position) {
        switch (position) {
        case 0:
            return new Guide_fragment();
        case 1:
            return new Guide_fragment_2();

        case 2,3,4 etc.

        default:
            return null;
        }
    }
            ...

But this way I have to have a fragment class for each page, and since the pages are only images and text, I figured that it might not be necessary.

Is there a way I can just use the same fragment class for all pages and then just assign a different layouts to it?

Thanks

回答1:

Is there a way I can just use the same fragment class for all pages and then just assign a different layouts to it?

Sure. Pass data into the fragment indicating what to display, typically via the factory pattern:

• Create a static newInstance() method that takes the data you might ordinarily pass to the fragment constructor

• newInstance() takes those parameters, puts them in a Bundle, and attaches the Bundle to a newly-constructed instance of your fragment via setArguments()

• Your fragment, when it needs this data, calls getArguments() to retrieve the Bundle

This ensures that your data will survive configuration changes.

来源：https://stackoverflow.com/questions/15744333/viewpager-pages-with-different-layouts-but-same-fragment-class