Jump to the next fragment on any fragment in FragmentStatePagerAdapter

Question

I am using a FragmentStatePagerAdapter in my app. this is my adapter:

private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
    List<FeedItem> posts = FeedListFragment.getPosts();

    public ScreenSlidePagerAdapter(FragmentManager fragmentManager) {
        super(fragmentManager);
    }

    @Override
    public Fragment getItem(int position) {
        FeedItem post = posts.get(position);
        String url = post.getUrl();
        String title = post.getTitle();
        String imagUrl = null;
        if (post.getType() == FeedItem.ARTICLE_VIEW_TYPE) {
            imagUrl = posts.get(position).getArticle().getImageUrl();
        }
        ScreenSlidePageFragment fragment = new ScreenSlidePageFragment(url, title, imagUrl);
        fragment.setPostsFragmentOnItemClickListener(PostActivity.this);
        return fragment;
    }

    @Override
    public int getCount() {
        return posts.size();
    }
}

What I need is to jump to a specific position in this adapter and also the ability to jump to the next and prev view. How can I do that? Thanks!

score 5 · Accepted Answer · edited Jul 23 '13 at 10:47

5

you can use viewPagerInstance.setCurrentItem(int position). Remember the position it is 0 based (you can use values between 0 and adapter.getCount() - 1 ).

For the next and previuos item use :

int currentItem = pager.getCurrentItem();

and add +/- 1 to currentItem. Of course you have to check if currentItem+1 is not beyond adapter.getCount() and if currentItem-1 is greather than or equal to 0

Edit: I used mPager.arrowScroll(View.FOCUS_LEFT); It works great.

edited Jul 23 '13 at 10:47

roiberg

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answered Jul 23 '13 at 10:30

Blackbelt

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Great!! and how can I go to next and prev? – roiberg Jul 23 '13 at 10:39
2

I used mPager.arrowScroll(View.FOCUS_LEFT); for next. but Thanks! – roiberg Jul 23 '13 at 10:45

Jump to the next fragment on any fragment in FragmentStatePagerAdapter

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