Load all fragments on app opening

Question

I have an app that uses fragments to create a page adapter. I use this to create a swipe tab which loads a different fragment. Each fragment loads webview which displays a s

Answer 1

call setOffscreenPageLimit with a number higher than half your fragments. This will force the viewpager to create and keep all of the fragments created as you have in your adapter.

@Override
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        viewPager = (ViewPager) findViewById(R.id.pager);
        // use a number higher than half your fragments.
        viewPager.setOffscreenPageLimit(4);
        FragmentManager fragmentManager=getSupportFragmentManager();
        viewPager.setAdapter(new MyAdapter(fragmentManager));     
}

Answer 2

in kotlin:

viewPager.offscreenPageLimit = size / 2

by default offscreenPageLimit = 1, meaning it load 1 fragment on both side of current fragment. total 3 frag