Error reloading fragment

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Error reloading fragment

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#2 by (-1 votes)

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Good afternoon I am presenting the following problem, when trying to reload a fragment the application is hung and then the cell phone restarts.

The fragment AdminComment shows a listView that when you press one of these objects in the listView opens a dialog (DialogAdminRecomendation) and it gives two options Accept changes and cancel. At the end of the createSimpleDialog method I am adding the following line of code so that the Fragment AdminComment that is the container of the ListView is reloaded:

getFragmentManager().beginTransaction().detach(this).attach(this).commit();

Thank you very much if you help me by indicating if I am making a mistake or if you give me an idea of how to solve it.

Thank you in advance.

Attachment CreateSimpleDialog method

public AlertDialog createSimpleDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

    builder.setTitle("Aceptar Cambios")
            .setMessage("Esta seguro de aceptar los cambios")
            .setPositiveButton("SI",
                    new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            listener.onPossitiveButtonClickInsert(idMachinePointAux,titleAux,bodyCommentAux,usuarioFinalAux);
                            //envio correo avisando
                        }
                    })
            .setNegativeButton("Eliminar Recomendación",
                    new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            listener.onNegativeButtonClickDelete(idMachinePointAux,titleAux,bodyCommentAux,usuarioFinalAux);
                            //envio correo avisando
                        }
                    });
    getFragmentManager().beginTransaction().detach(this).attach(this).commit();
    return builder.create();
}

Cordial Greetings

android android-studio android-fragment fragment

asked by Esteban Sasso 24.02.2018 в 23:24

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2 answers

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score 0 · Answer 1

You are performing two contrary operations when trying to perform the transaction which is incorrect

getFragmentManager().beginTransaction().detach(this).attach(this).commit();

attach () associates the Fragment with the Activity.

detach () disassociates the   Fragment with the Activity.

Additionally, this must be a Snippet.

You can add a Fragment in this way (I suggest using getSupportFragmentManager instead of getFragmentManager )

 Fragment fragment = getSupportFragmentManager().findFragmentByTag("NombreFragment");

or also using the id of the Fragment:

  Fragment fragment =  getSupportFragmentManager().findFragmentById(R.id.my_fragment);

and proceed to make the transaction:

FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); 
ft.attach(frg);
ft.commit();

I suggest you review the documentation so that you understand how to achieve it

score -1 · Answer 2

One way to reload a fragment would be like this:

FragmentAdminComment frag = new FragmentAdminComment();  
FragmentManager fm = getFragmentManager();
fm.beginTransaction().replace(R.id.frame, frag).addToBackStack(null).commit();