Close SearchAction in a Fragment by pressing Back

Question

I have a SearchActivity that works, but I want to be able to close it by pressing back. If I do that right now, first the keyboard is gone (which is as I want), but if I press it again I destroy the fragment. Instead, I want to close the search. Because I am in a fragment I can't manage to make a onBackPressed().

Current code:

@Override
    public void onBackPressed() {
        // Only close if the Fragment reference is null.
        if(Ships == null)
        {
            super.onBackPressed();
        }
        else
        {
            Ships.onBackPressed();
        }
    }

Newtron Labs · Answer 1 · 2017-04-22T20:49:34.303

1

If you really need to, you may keep a reference of the Fragment and notify the fragment that onBackPressed() occurred. Although this will give you the result that you want, it is not optimal.

In the Activity

@Override
public void onBackPressed()
{
    // Only close if the Fragment reference is null.
    if(mFragment == null)
    {
        super.onBackPressed();
    }
    else
    {
        mFragment.onBackPressed();
    }
}

In the Fragment

MyFragment extends Fragment
{
     public void onBackPressed()
     {
         // Execute here.
     }
}

edited Apr 22 '17 at 20:49

answered Apr 22 '17 at 20:44

Newtron Labs

809
1
5
17

That works except for mFragment == null. (expression expected) – newToEverything Apr 22 '17 at 20:59
@newToEverything Could you double check, it seems you forgot an `=` sign. It should be `==`. Please let me know if the issue is still present. – Newtron Labs Apr 22 '17 at 21:02

score 0 · Answer 2 · edited May 23 '17 at 11:47

Override onBackPressed():

If keyboard is open - let system handle back press event
If SearchView has currently focus - then clear focus

Otherwise let system handle back press event.

 @Override
 public void onBackPressed() {
     final boolean isKeyboardOpen = ...;
     if (isKeyboardOpen) {
         super.onBackPressed();
     } else if (searchView.hasFocus()) {
         searchView.clearFocus();
     } else super.onBackPressed();
 }

Close SearchAction in a Fragment by pressing Back

2 Answers2