Обновление ListView в фрагменте с SlidingTab

Question

У меня эта проблема, я делаю приложение с 3 вкладками, используя SlidingTab, во второй этой вкладке у меня есть 2 ListView, а на первой вкладке я использую ACTION_CAPTURE. Когда я вернусь из приложения-камеры в главную активность, и я перейду во вторую вкладку, исчезло список. Почему?

Answer 1

import arrivi.operativi.operativi220.InventarioAdapter.customButtonListener; 
import arrivi.operativi.operativi220.invepiazzadapter.customButtonListener2; 

public class InventarioFragment extends Fragment implements customButtonListener, customButtonListener2 { 
public static final String ARG_PAGE = "ARG_PAGE"; 
private int mPage; 
int entrata=0; 
private WritableCellFormat timesBoldUnderline; 
private WritableCellFormat times; 
Button btNew ; 
globalVar g; 
inv_list lista = inv_list.getInstance(); 
inv_list_piaz lista_piaz = inv_list_piaz.getInstance(); 
ArrayList<inventario> ls = new ArrayList<>(); 
ArrayList<inventariopiazzale> lsp = new ArrayList<>(); 
inventario tmpINV; 
inventariopiazzale tmpINVP; 
ListView lv; 
ListView lvp; 
invepiazzadapter adapter_piazz; 
InventarioAdapter adapter; 

public static InventarioFragment newInstance(int page) { 
    Bundle args = new Bundle(); 
    args.putInt(ARG_PAGE, page); 
    InventarioFragment fragment = new InventarioFragment(); 
    fragment.setArguments(args); 
    return fragment; 
} 

//@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    mPage = getArguments().getInt(ARG_PAGE); 
    setHasOptionsMenu(true); 
    //setMenuBar(); 
    if (entrata == 0) { 
     popola_array(); 
     entrata = 1; 
    } 

    //ls=lista.getInventarioArrayList(); 

    Context context = getActivity().getApplicationContext(); 
    adapter = new InventarioAdapter(context, R.layout.layout_inventario, lista.getInventarioArrayList()); 

    adapter.setCustomButtonListner(new customButtonListener() { 
     @Override 
     public void onButtonClickListner(int position, inventario value, RadioGroup rR, int numAR) { 
      if (numAR == 1) { 
       Toast.makeText(getActivity(), "Scelta Rimossa! " + position, 
         Toast.LENGTH_SHORT).show(); 
       inventario p; 
       p = value; 
       rR.clearCheck(); 
       inv_list locale = inv_list.getInstance(); 
       ArrayList<inventario> tmp = locale.getInventarioArrayList(); 
       p.setPorta(String.valueOf(p.getPosizione() + 1)); 
       p.setsR(0); 
       p.setcM(0); 
       p.setrM(0); 
       p.setTarga(""); 
       tmp.set(p.getPosizione(), p); 
       locale.setInventarioArrayList(tmp); 
      } 

     } 
    }); 



    adapter_piazz = new invepiazzadapter(context,R.layout.layout_inventario,lista_piaz.getInventarioArrayList()); 
    adapter_piazz.setCustomButtonListner2(new customButtonListener2() { 
     @Override 
     public void onButtonClickListner2(int position, inventariopiazzale iv, RadioGroup rR, int numAR) { 
      if (numAR == 2) { 

       inventariopiazzale Pi; 
       Pi = iv; 
       rR.clearCheck(); 
       inv_list_piaz locale = inv_list_piaz.getInstance(); 
       ArrayList<inventariopiazzale> tmp2 = locale.getInventarioArrayList(); 
       Pi.setPorta(String.valueOf(Pi.getPosizione() + 1)); 
       //btRM.setChecked(false); 
       // btCM.setChecked(false); 
       // btSR.setChecked(false); 
       Pi.setsR(0); 
       Pi.setcM(0); 
       Pi.setrM(0); 
       Pi.setTarga(""); 
       tmp2.set(Pi.getPosizione(), Pi); 
       locale.setInventarioArrayList(tmp2); 
       Toast.makeText(getActivity(), "Scelta Rimossa! " + Pi.getPorta(), 
         Toast.LENGTH_SHORT).show(); 
      } 

     } 

    }); 



} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    View view = inflater.inflate(R.layout.activity_inventario, container, false); 
    setMenuBar(); 
    btNew = (Button) view.findViewById(R.id.buttonNew); 
    lv = (ListView) view.findViewById(R.id.LVRibalte); 
    lvp = (ListView) view.findViewById(R.id.lvPiazzale); 
    lv.setAdapter(adapter); 
    lvp.setAdapter(adapter_piazz); 
    //setMenuBar(); 
    setLayout(view); 
    return view; 

} 

// Config Layout 
public void setLayout(View v) 
{ 
    // Inizializzo Titolo List 
    TextView LabTop = (TextView) v.findViewById(R.id.Inv_Rib_Label); 
    Typeface carLabTop = Typeface.createFromAsset(getActivity().getAssets(), "fonts/Sportscenter.ttf"); 
    LabTop.setTextColor(Color.BLACK); 
    LabTop.setTextSize(18); 
    LabTop.setTypeface(carLabTop); 
    TextView LabButtom = (TextView) v.findViewById(R.id.textView4); 
    Typeface carLabButom = Typeface.createFromAsset(getActivity().getAssets(), "fonts/Sportscenter.ttf"); 
    LabButtom.setTextColor(Color.BLACK); 
    LabButtom.setTextSize(18); 
    LabButtom.setTypeface(carLabButom); 
    // Inizializzo le listview 


    /** TextView EdTarga = (EditText) v.findViewById(R.id.num_Porta); 
    Typeface carTarga= Typeface.createFromAsset(getActivity().getAssets(), "fonts/Sportscenter.ttf"); 
    EdTarga.setTextColor(Color.BLACK); 
    EdTarga.setTextSize(18); 
    EdTarga.setTypeface(carTarga);**/ 

} 
// INIZIO TEST ZONE 
public void crea_file_excel(){ 

    final String fileName = "inventario.xls"; 
    File directory = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)+"/OA"); 
    if(!directory.isDirectory()){ 
     directory.mkdirs(); 
    } 
    File file = new File(directory, fileName); 
    WorkbookSettings wbSettings = new WorkbookSettings(); 
    wbSettings.setLocale(new Locale("it", "IT")); 
    WritableWorkbook workbook; 

    try { 
     workbook = Workbook.createWorkbook(file, wbSettings); 
     WritableSheet sheet = workbook.createSheet("Invantario Piazzale", 0); 
     try { 
      sheet.addCell(new Label(0,0,"Porta")); 
      //sheet.addCell(new WritableCellFormat().setBorder(Border.BOTTOM, BorderLineStyle.DASHED)); 
      sheet.addCell(new Label(1,0,"Tipo Pezzo")); 
      sheet.addCell(new Label(2,0,"Targa")); 

      int conta = 1; 
      for (int i = 0; i < ls.size(); i++) { 
       tmpINV = ls.get(i); 
       sheet.addCell(new Label(0, conta, tmpINV.getPorta())); 

       if((tmpINV.getrM() == 0) & (tmpINV.getsR() == 0) & (tmpINV.getcM() == 0)) 
       { 
        sheet.addCell(new Label(1, conta, "Porta Vuota")); 
        sheet.addCell(new Label(2, conta, "")); 
       } 
       if(tmpINV.getsR() == 1) 
       { 
        sheet.addCell(new Label(1, conta, "Semi Rimorchio")); 
        sheet.addCell(new Label(2, conta, tmpINV.getTarga())); 
       } 
       if(tmpINV.getcM() == 1) 
       { 
        sheet.addCell(new Label(1, conta, "CASSA")); 
        sheet.addCell(new Label(2, conta, tmpINV.getTarga())); 
       } 
       if(tmpINV.getrM() == 1) 
       { 
        sheet.addCell(new Label(1, conta, "Rimorchio")); 
        sheet.addCell(new Label(2, conta, tmpINV.getTarga())); 
       } 
       conta = conta + 1; 
      } 
      for (int i = 0; i < lsp.size(); i++) { 
       tmpINVP = lsp.get(i); 
       sheet.addCell(new Label(0, conta, tmpINVP.getPorta())); 
       sheet.addCell(new Label(2, conta, tmpINVP.getTarga())); 
       if((tmpINVP.getrM() == 0) & (tmpINVP.getsR() == 0) & (tmpINVP.getcM() == 0)) 
       { 
       } 
       if(tmpINVP.getsR() == 1) 
       { 
        sheet.addCell(new Label(1, conta, "Semi Rimorchio")); 
        sheet.addCell(new Label(2, conta, tmpINVP.getTarga())); 
        conta = conta + 1; 
       } 
       if(tmpINVP.getcM() == 1) 
       { 
        sheet.addCell(new Label(1, conta, "CASSA")); 
        sheet.addCell(new Label(2, conta, tmpINVP.getTarga())); 
        conta = conta + 1; 
       } 
       if(tmpINVP.getrM() == 1) 
       { 
        sheet.addCell(new Label(1, conta, "Rimorchio")); 
        sheet.addCell(new Label(2, conta, tmpINVP.getTarga())); 
        conta = conta + 1; 
       } 

      } 
     }catch (RowsExceededException e) { 
      e.printStackTrace(); 
     } catch (WriteException e) { 
      e.printStackTrace(); 
     } 
     workbook.write(); 
     try { 
      workbook.close(); 
     } catch (WriteException e) { 
      e.printStackTrace(); 
     } 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } 
} 

public void onResume() 
{ 
super.onResume(); 
} 
public void onStart() 
{ 
    super.onStart(); 
    //Fragment.onActivityCreated(Bundle); 
    this.onCreate(null); 
} 
// FINE TEST ZONE 

public void popola_array() 
{ 
    RadioGroup RG=(RadioGroup) getActivity().findViewById(R.id.radioGroup); 

    globalVar ff = globalVar.getInstance(); 
    int i =0; 
    int pP=ff.getPP(); 
    int pR=ff.getPR(); 

    for (i=0;i<pR;i++) 
    { 
     // View v = new View (R.layout.layout_inventario); 

     // RG.check(R.id.semiRimorchio); 
     ls.add(new inventario(String.valueOf(i+1),R.id.semiRimorchio,0,0,0,i,"")); 
    } 
    inv_list tmp = inv_list.getInstance(); 
    tmp.setInventarioArrayList(ls); 

    for (i=0;i<pP;i++) 
    { 
     lsp.add(new inventariopiazzale("P"+String.valueOf(i+1),R.id.semiRimorchio,0,0,0,i,"")); 
    } 
    inv_list_piaz tmpp = inv_list_piaz.getInstance(); 
    tmpp.setInventarioArrayList(lsp); 
    entrata =1; 
} 

public void conta_pezzi() 
{ 

    int tmpSR=0; 
    int tmpCM=0; 
    int tmpRM=0; 
    for (int i =0; i<ls.size();i++) 
    { 
     tmpINV = ls.get(i); 
     if(tmpINV.getcM()==1) 
      tmpCM =tmpCM+1; 
     if(tmpINV.getsR()==1) 
      tmpSR= tmpSR+1; 
     if(tmpINV.getrM()==1) 
      tmpRM=tmpRM+1; 

    } 

    int tmpSRP=0; 
    int tmpCMP=0; 
    int tmpRMP=0; 
    for (int i =0; i<lsp.size();i++) 
    { 
     tmpINVP = lsp.get(i); 
     if(tmpINVP.getcM()==1) 
      tmpCMP =tmpCMP+1; 
     if(tmpINVP.getsR()==1) 
      tmpSRP= tmpSRP+1; 
     if(tmpINVP.getrM()==1) 
      tmpRMP=tmpRMP+1; 

    } 



    Toast.makeText(getActivity(), "In ribalta: " + tmpCM +"CM, "+tmpSR +"SR, "+tmpRM+"Rim., a Piazzale :"+ tmpCMP +"CM, "+tmpSRP +"SR, "+tmpRMP+"Rim." , Toast.LENGTH_LONG).show(); 
} 

@Override 
public void onButtonClickListner(int position, inventario value, RadioGroup rR, int numAR) { 
    if (numAR == 1) { 
     Toast.makeText(getActivity(), "Scelta Rimossa! " + position, 
       Toast.LENGTH_SHORT).show(); 
     inventario p; 
     p = value; 
     rR.clearCheck(); 
     inv_list locale = inv_list.getInstance(); 
     ArrayList<inventario> tmp = locale.getInventarioArrayList(); 
     p.setPorta(String.valueOf(p.getPosizione() + 1)); 
     p.setsR(0); 
     p.setcM(0); 
     p.setrM(0); 
     p.setTarga(""); 
     tmp.set(p.getPosizione(), p); 
     locale.setInventarioArrayList(tmp); 
    } 


} 


@Override 
public void onButtonClickListner2(int position, inventariopiazzale iv, RadioGroup rR, int numAR)       { 
    if (numAR == 2) 
    { 

     inventariopiazzale Pi ; 
     Pi = iv; 
     rR.clearCheck(); 
     inv_list_piaz locale = inv_list_piaz.getInstance(); 
     ArrayList<inventariopiazzale> tmp2 = locale.getInventarioArrayList(); 
     Pi.setPorta(String.valueOf(Pi.getPosizione() + 1)); 
     //btRM.setChecked(false); 
     // btCM.setChecked(false); 
     // btSR.setChecked(false); 
     Pi.setsR(0); 
     Pi.setcM(0); 
     Pi.setrM(0); 
     Pi.setTarga(""); 
     tmp2.set(Pi.getPosizione(), Pi); 
     locale.setInventarioArrayList(tmp2); 
     Toast.makeText(getActivity(), "Scelta Rimossa! " + Pi.getPorta(), 
       Toast.LENGTH_SHORT).show(); 
    } 

} 

public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { 
    inflater.inflate(R.menu.action_fragment, menu); 
    MenuItem add = menu.findItem(R.id.menu_add); 
    add.setVisible(false); 
    MenuItem setting = menu.findItem(R.id.menu_setting); 
    setting.setVisible(false); 
    MenuItem foto = menu.findItem(R.id.menu_foto); 
    foto.setVisible(false); 
    MenuItem send = menu.findItem(R.id.menu_inventario); 
    send.setShowAsAction(2); 
    setMenuBar(); 





} 

@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(); 
    if (id == R.id.menu_inventario) { 
     Toast.makeText(getActivity(), "Invia Inventario!!", 2500).show(); 

     return true; 
    } 

    return super.onOptionsItemSelected(item); 
} 

public void setMenuBar() 
{ 
    Typeface font2 = Typeface.createFromAsset(getActivity().getAssets(), "fonts/Sportscenter.ttf"); 
    SpannableStringBuilder SI = new SpannableStringBuilder("Inventario Pezzi"); 
    SI.setSpan(new CustomTypefaceSpan("", font2), 0, SI.length(), Spanned.SPAN_EXCLUSIVE_INCLUSIVE); 
    SI.setSpan(new ForegroundColorSpan(Color.WHITE),0, SI.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
    SI.setSpan(new RelativeSizeSpan(1.2f), 0,SI.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
    ((MainActivity) getActivity()).getActionBar().setTitle(SI); 

} 

}