How to close the current fragment by using Button like the back button?

Question

I have try to close the current fragment by using Imagebutton.

I am in Fragment-A and it will turn to the Fragment-B when I click the button.

And when I click the button at Fragment-B , it will turn to the Fragment-C and close the Fragment-B.

If I click the back button at Fragment-C , it will back to the Fragment-A.

The code I have try is like the following

camera_album = (ImageButton) view.findViewById(R.id.camera_album);

camera_album.setOnClickListener(new Button.OnClickListener() {
    @Override
    public void onClick(View v) {

                    closefragment();
        Fragment fragment = FileBrowserFragment.newInstance(null, null, null) ;
        MainActivity.addFragment(LocalFileBrowserFragment.this, fragment) ;


    }
});

private void closefragment() {
    getActivity().getFragmentManager().beginTransaction().remove(this).commit();
}

When I click the back button at fragment-B , it turn to the Fragment-C.

But when I click the back button on Fragment-C , it doesn't back to the Fragment-A. It back to the empty background. If I want to back to Fragment-A , I have to click the back button once again.

SO , it seem doesn't close the current fragment complete.

How to finish the current fragment like the back button of Android ?

Ulrick

What is this MainActivity.addFragment(LocalFileBrowserFragment.this, fragment)??. you need to add the fragment to backstak and pop the same accordingly – Englebert

There has add the fragment in function addFragment. – Ulrick

add fragment to what and an activity method?? – Englebert

getActivity().onBackPressed(); can do this – Ratline

Answer 1

From Fragment A, to go to B, replace A with B and use addToBackstack() before commit().

Now From Fragment B, to go to C, first use popBackStackImmediate(), this will bring back A. Now replace A with C, just like the first transaction.

Tidbit

for usinf popStackImmediate() :-> getView().setOnKeyListener(new View.OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { getActivity().getSupportFragmentManager().popBackStackImmediate() ; return true; } return false; } }); – Dilute

Answer 2

I changed the code from

getActivity().getFragmentManager().beginTransaction().remove(this).commit();

to

getActivity().getFragmentManager().popBackStack();

And it pops out the top fragment

Ulrick

This worked for me context.supportFragmentManager.beginTransaction().remove(this@MyFragment).commit() – Territoriality

With fragment of type androidx.fragment.app.Fragment, this seems to leave the fragment header. Therefore I have my main app, with the popped fragment header still showing. The getActivity().onBackPressed() seem to work better for me. – Barbee

Don't forget to use "getSupportFragmentManager()" in case "getFragmentManager()" isn't working for you – Diondione

Unfortunately this is outdated. Use: OnBackPressedCallback from now on. – Cropland

Answer 3

For those who need to figure out simple way

Try getActivity().onBackPressed();

Ratline

getActivity() can be null lot of times. – Pyrene

@ArpitJ. it's only null before onAttach() is called, a fragment can't live without an activity. – Sclerometer

@TamimAttafi True, but I was referring to cases like rotation or activity is finished and due to some reason fragment instance is still there then it will return null. – Pyrene

popBackStack() and popBackStackImmediate() are more direct ways of popping the topmost fragment without simulating a button press. Using onBackPressed() triggers OnBackPressedCallbacks; if in the future you want to handle Back button presses specifically, you'll have to switch to popBackStack()/popBackStackImmediate() to avoid triggering the callbacks programmatically. – Chamkis

You put this code inside the Fragment's buttons's onclick method. – Moil

Terrible solution. Altho it gives the results initially, it can cause many problems once you start overriding OnBackPress or if let's say the keyboard is open or something, the back press you initiate will only close the keyboard not the fragment. And these are only a few of the many possible problems you can encounter with this solution. User popBackStack() or popBackStackImmediate(). – Decoct

'onBackPressed()' is deprecated – Veneering

Answer 4

Try this:

public void removeFragment(Fragment fragment){
    android.support.v4.app.FragmentManager fragmentManager = getSupportFragmentManager();
    android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

    fragmentTransaction.remove(fragment);
    fragmentTransaction.commit();
}

Collayer

Answer 5

This is a Kotlin way of doing this, I have created button in fragment layout and then set onClickListner in onViewCreated.

according to @Viswanath-Lekshmanan comment

override fun onViewCreated(view: View?, savedInstanceState: Bundle?) 
{
     super.onViewCreated(view, savedInstanceState)

     btn_FragSP_back.setOnClickListener {
        activity?.onBackPressed()
    }
}

Derna

this closes the activity, not the fragment – Verduzco

How can we do this if we have to double backpress to close the activity? – Piquant

Answer 6

You can try this logic because it is worked for me.

frag_profile profile_fragment = new frag_profile();

boolean flag = false;
@SuppressLint("ResourceType")
public void profile_Frag(){
    if (flag == false) {
        FragmentManager manager = getFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        manager.getBackStackEntryCount();
        transaction.setCustomAnimations(R.anim.transition_anim0, R.anim.transition_anim1);
        transaction.replace(R.id.parentPanel, profile_fragment, "FirstFragment");
        transaction.commit();
        flag = true;
    }

}

@Override
public void onBackPressed() {
    if (flag == true) {
        FragmentManager manager = getFragmentManager();
        FragmentTransaction transaction = manager.beginTransaction();
        manager.getBackStackEntryCount();
        transaction.remove(profile_fragment);
        transaction.commit();
        flag = false;
    }
    else super.onBackPressed();
}

Astomatous

Answer 7

Try this:

ft.addToBackStack(null);   // ft is FragmentTransaction

So, when you press back-key, the current activity (which holds multiple fragments) will load previous fragment rather than finishing itself.

Drucilla

Answer 8

Button ok= view.findViewById(R.id.btSettingOK);
Fragment me=this;
ok.setOnClickListener( new View.OnClickListener(){
    public void onClick(View v){
     getActivity().getFragmentManager().beginTransaction().remove(me).commit();
    }
});

James

While this code may answer the question, providing additional context regarding why and/or how this code answers the question improves its long-term value. – Kero

This simple code actually removes the current fragment view by a OK or Close button on it. I use it for quitting a light setting panel displayed as a Fragment and go back to the Activity. Sorry for this trick but under Android 8, I think it is not so practical to manage multiple Fragment. – James

Answer 9

If you need to handle the action more specifically with the back button you can use the following method:

view.setFocusableInTouchMode(true);
view.requestFocus();
view.setOnKeyListener(new View.OnKeyListener() {
    @Override
    public boolean onKey(View v, int keyCode, KeyEvent event) {
        if( keyCode == KeyEvent.KEYCODE_BACK )
        {
            onCloseFragment();
            return true;
        } else {
            return false;
        }
    }
});

Stuffed

Answer 10

In your Fragments onCreateView(...) you can remove a view by calling container.removeView(view);. So if you want to remove the fragment, then view should be the return value of onCreateView,

for example

    public View onCreateView(...){
        final View view = inflater.inflate(R.layout.your_fragments_layout,container,false);
        //Do something
        finishButton.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v){
                container.removeView(view);
            }
        });
        return view;
    }

Anticoagulant

Answer 11

For remove current fragment B and navigate to stack back (other fragment A):

private fun navigateToBackStack() {
    requireActivity().supportFragmentManager
        .beginTransaction()
        .remove(this)
        .commit()
    requireActivity().supportFragmentManager.popBackStack()
}

GL

Pigfish

Answer 12

If you use JetPack Navigation, write:

findNavController().popBackStack()

Monarch

Answer 13

For those using DialogFragment, just call .dismiss().

Ampliate

Answer 14

Try this one

getActivity().finish();

Pentarchy

Try explaining your answer more , so that its easy for OP and other people to understand the answer who come back to this question in future – Unnamed

this closes the whole activity, not the fragment – Mantic

It helped me. Those who want more information may google it. No need to copypaste here official documentation. – Fakir

If you are using BottomNavigationView which usually has one activity, this command will close the app instead of getting back to the previous fragment. – Aronow