I have a Activity that contains 5 Fragment with a ViewPager type form, what I want is to recover the information of each EditText of the Fragment as it happens with the swipe from one fragment to another, I do not know how to implement it, in principle I know it is with Bundle but I do not know how to activate it when changing fragment.
This is the code of my Activity that handles the ViewPage :
public class Agregar_Expediente extends AppCompatActivity implements EstacionFragment.OnFragmentInteractionListener, UCentralFragment.OnFragmentInteractionListener,
MonitorFragment.OnFragmentInteractionListener, TecladoFragment.OnFragmentInteractionListener, BocinasFragment.OnFragmentInteractionListener,
MouseFragment.OnFragmentInteractionListener, UpsFragment.OnFragmentInteractionListener, ImpresoraFragment.OnFragmentInteractionListener,
ScannerFragment.OnFragmentInteractionListener
{
private SectionsPagerAdapter mSectionsPagerAdapter;
private ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_agregar__expediente);
//Toolbar toolbar = (Toolbar) findViewById(R.id.toolbarAgregar);
// setSupportActionBar(toolbar);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mSectionsPagerAdapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_agregar__expediente, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onFragmentInteraction(Uri uri) {
}
public static class PlaceholderFragment extends Fragment {
private static final String ARG_SECTION_NUMBER = "section_number";
public PlaceholderFragment() {
}
/**
* Define cual pantalla va a mostrar
*/
public static Fragment newInstance(int sectionNumber) {
/*PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);*/
Fragment fragment = null;
switch (sectionNumber){
case 1: fragment = new EstacionFragment();
break;
case 2: fragment = new UCentralFragment();
break;
case 3: fragment = new MonitorFragment();
break;
case 4: fragment = new BocinasFragment();
break;
case 5: fragment = new TecladoFragment();
break;
case 6: fragment = new MouseFragment();
break;
case 7: fragment = new UpsFragment();
break;
case 8: fragment = new ImpresoraFragment();
break;
case 9: fragment = new ScannerFragment();
}
return fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_agregar__expediente, container, false);
TextView textView = (TextView) rootView.findViewById(R.id.section_label);
textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));
return rootView;
}
}
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
return PlaceholderFragment.newInstance(position + 1);
}
@Override
public int getCount() {
// Show 3 total pages.
return 9;
}
}
}
and this is one of my Fragments :
public class UCentralFragment extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
ScrollView scrollUCentral;
TextInputEditText txt_numInvUCentral, txt_marcaUCentral,
txt_modeloUCentral,txt_tipoUCentral, txt_detallesUCentral, txt_selloUCentral;
TextInputLayout imp_numInvUCentral, imp_marcaUCentral,
imp_modeloUCentral,imp_tipoUCentral, imp_detallesUCentral, imp_selloUCentral;
private OnFragmentInteractionListener mListener;
public UCentralFragment() {
// Required empty public constructor
}
@Override
public void startActivityForResult(Intent intent, int requestCode, @Nullable Bundle options) {
super.startActivityForResult(intent, requestCode, options);
}
public static UCentralFragment newInstance(String param1, String param2) {
UCentralFragment fragment = new UCentralFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_ucentral, container, false);
iniciarVariables(view);
return view;
}
private void iniciarVariables(View view){
txt_numInvUCentral = (TextInputEditText) view.findViewById(R.id.txt_numInvUCentral);
txt_marcaUCentral = (TextInputEditText) view.findViewById(R.id.txt_marcaUCentral);
txt_modeloUCentral = (TextInputEditText) view.findViewById(R.id.txt_modeloUCentral);
txt_tipoUCentral = (TextInputEditText) view.findViewById(R.id.txt_tipoUCentral);
txt_detallesUCentral = (TextInputEditText) view.findViewById(R.id.txt_detallesUCentral);
txt_selloUCentral = (TextInputEditText) view.findViewById(R.id.txt_selloUCentral);
imp_numInvUCentral = (TextInputLayout) view.findViewById(R.id.imp_numInvUCentral);
imp_marcaUCentral = (TextInputLayout) view.findViewById(R.id.imp_marcaUCentral);
imp_modeloUCentral = (TextInputLayout) view.findViewById(R.id.imp_modeloUCentral);
imp_tipoUCentral = (TextInputLayout) view.findViewById(R.id.imp_tipoUCentral);
imp_detallesUCentral = (TextInputLayout) view.findViewById(R.id.imp_detallesUCentral);
imp_selloUCentral = (TextInputLayout) view.findViewById(R.id.imp_selloUCentral);
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
@Override
public void onDestroy() {
super.onDestroy();
Bundle bundle = new Bundle();
bundle.putStringArrayList("vUCentral", valoresInput());
}
private ArrayList<String> valoresInput(){
ArrayList<String> arrayInput = new ArrayList<>();
arrayInput.add(0, txt_numInvUCentral.getText().toString());
arrayInput.add(1, txt_marcaUCentral.getText().toString());
arrayInput.add(2, txt_modeloUCentral.getText().toString());
arrayInput.add(3, txt_tipoUCentral.getText().toString());
arrayInput.add(4, txt_detallesUCentral.getText().toString());
return arrayInput;
}
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}
What I want is to send an automatic Bundle when changing fragment, I do not know if I make myself understand