I am writing an app which has a Navigation Drawer and is using nested fragments.
The navigation drawer is created pretty much as per Android docs - it works.
I want the navigation drawer to be visible always, that's why I have one activity with it, and I just swap fragments. One of the fragments is a ViewPager, which in turn has its own fragments as pages.
The navigation is hierarchical like this:
- Home
- Fragment 1
-- Subfragment 1.1
-- Subfragment 1.2
-- Subfragment 1.3
- Fragment 2
-- Subfragment 2.1
-- Subfragment 2.2
-- Subfragment 2.3
where Fragment is a ViewPager, and Subfragments are its pages. All works correctly when I just go to Fragment from the drawer, but I don't know how to switch directly to a ViewPager's given page (nested fragment).
MainActivity with handling nav drawer clicks:
@Override
protected void onNavItemSelected(int id) {
switch ((int)id) {
case 1:
getSupportFragmentManager().beginTransaction()
.replace(R.id.content_frame, new MainFragment())
.addToBackStack(null).commit();
break;
case 100:
getSupportFragmentManager().beginTransaction()
.replace(R.id.content_frame, new Fragment1())
.addToBackStack(null).commit();
break;
case 200:
getSupportFragmentManager().beginTransaction()
.replace(R.id.content_frame, new Fragment2())
.addToBackStack(null).commit();
break;
.
.
.
}
}
I suppose this should be something with getChildFragmentManager() and ViewPager's setCurrentItem(), but I can't get the first in my Main Activity (or don't know how) and I can't use the second because the pager is not created yet if I do something like this:
SubFragment11 a = new SubFragment11();
getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, a).addToBackStack(null).commit();
a.setCurrentPagerItem(2);
