Passing data back to previous fragment from current fragment

Question

I am Using Navigation Drawer in my app. I have one MainActivity and rest of are Fragments. So the issue is Suppose i have three fragments like A,B,C.

Now in A i have

Answer 1

You may call setTargetFragment() when you start the Fragment C from B. Example:

FragmentC fragmentC = FragmentC.newInstance();
fragmentC.setTargetFragment(FragmentB.this, REQUEST_CODE);
getFragmentManager().beginTransaction().replace(R.id.container, fragmentC).commit();

and then when you want to pass data back to fragment B from C, you can call the following code:

getTargetFragment().onActivityResult(
                getTargetRequestCode(),
                Activity.RESULT_OK,
                new Intent().putExtra("datafrom C", "datafrom C")
);

and get it from the onActivityResult() method in your fragment B:

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode==REQUEST_CODE && resultCode==Activity.RESULT_OK) {
        String datafromC = data.getStringExtra("datafrom C");   
    }
}