I have a app with a main activity and fragments. My fragments work but when I switch between them, they refresh and create a new fragment when I switch back. I want the data to save when I switch back and forth, but I can't figure out how to use a bundle to save the values.
This is the code that controls switching between fragments: `private NavigationBarView.OnItemSelectedListener navListener = new BottomNavigationView.OnItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
Fragment selectedFragment = null;//used to default to home
if(item.getItemId() == R.id.nav_home){
selectedFragment = new HomeFragment();
}else if(item.getItemId() == R.id.nav_input){
//selectedFragment = new InputFragment();
if((InputFragment) getSupportFragmentManager().findFragmentByTag("input_tag") != null){
selectedFragment = (InputFragment) getSupportFragmentManager().findFragmentByTag("input_tag");
}else{
selectedFragment = new InputFragment();
}
}else if(item.getItemId() == R.id.nav_balance){
selectedFragment = new BalanceFragment();
}else if(item.getItemId() == R.id.nav_calendar) {
selectedFragment = new CalendarFragment();
}
if(selectedFragment == null) selectedFragment = new HomeFragment();
getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
selectedFragment, "input_tag").commit();
return true;
}
};
}`
I tried reformatting it, and looked through Android Studio forums, but I can't seem to find anything helpful to resolving this problem. I unsuccessfully tried to use tags to save a fragment, but it didn't retain the data. I also tried to use savedInstanceState but it did not work. Any help or directions to start in would be greatly appreciated.
