ListView, BasicAdapter ile dolu Fragment nasıl yenilir?

Question

Bir İletişim Kutusu kapalı olduğunda, bir Parçada Liste Görünümü Yenile. Şimdiye kadar yenileme sadece uygulamayı yeniden başlattığımda ve nedenini bilmiyorum. i Dialog kapatıldığında, yenilemek istediğiniz,

Bunun üzerinde ListView ile Fragment geçerli:

İşte sınıflardır.

public class RegisterListFragment extends Fragment { 


    public static final String TAG = "RegisterListFragment"; 

    RegisterListAdapter adapter; 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     setRetainInstance(true); 
     // TODO Auto-generated method stub 

     View view = inflater.inflate(R.layout.act_select_list_fragment, container, false); 


     ListView list = (ListView) view.findViewById(R.id.register_list); 
     list.setOnItemClickListener(new OnItemClickListener() { 

      @Override 
      public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, 
            long arg3) { 
       Intent i = new Intent(getActivity(), com.example.smartkasse.Act_Register.MainActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
       TextView selectedRegisterTextView = (TextView) arg1.findViewById(R.id.title); 
       String selectedRegisterName = (String) selectedRegisterTextView.getText(); 
       i.putExtra("selectedRegisterName", selectedRegisterName); 
       startActivity(i); 
       getActivity().finish(); 
      } 
     }); 
     adapter = new RegisterListAdapter(getActivity()); 
     list.setAdapter(adapter); 

     return view; 
    } 


    public void refreshData() { 
     adapter.notifyDataSetChanged(); 
    } 
} 

Ve bu birlikte Listesini doldurmak Adaptör geçerli:

public class RegisterListAdapter extends BaseAdapter { 
    View view = null; 

    Database db = new Database(mContext); 
    data=db.getAlltitles(); 
    if(convertView==null) 

    { 

     view = (View) inflater.inflate(R.layout.act__select_listview, null); 

     TextView title = (TextView) view.findViewById(R.id.title); 
     TextView artist = (TextView) view.findViewById(R.id.artist); 
     TextView duration = (TextView) view.findViewById(R.id.duration); 
     ImageView thumb_image = (ImageView) view.findViewById(R.id.list_image); 

     title.setText(data.get(position)); 
     //artist.setText(data.get(position)); 
     //duration.setText(data.get(position)); 
     //thumb_image.setImageResource(R.drawable.ic_launcher); 

     return view; 
    } 

    else 

    { 

     TextView title = (TextView) convertView.findViewById(R.id.title); 
     TextView artist = (TextView) convertView.findViewById(R.id.artist); 
     TextView duration = (TextView) convertView.findViewById(R.id.duration); 
     ImageView thumb_image = (ImageView) convertView.findViewById(R.id.list_image); 

     title.setText(data.get(position)); 
     // artist.setText(data.get(position)); 
     // duration.setText(data.get(position)); 
     //thumb_image.setImageResource(R.drawable.ic_launcher); 

     return convertView; 
    } 
} 

Ve bu her şeyi birlikte tutan Ana geçerli:

Dialog positv Düğme, daha sonra basıldığında Yeni Veri, Listede görmek için

public class MainActivity extends SherlockFragmentActivity implements OnRegisterCreatedListener { 
    RegisterListFragment registerListFragment; 
    HelpFragment helpFragment; 

    boolean helpVisible = false; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 

     // Grund-Layout für die Activity festlegen 
     setContentView(R.layout.act_select_main); 

     addFragments(); 

     supportInvalidateOptionsMenu(); 
     setLargeInLandscape(); 

    } 

// Was passiert wenn der Menüknopf gedrückt wird 

    // Inflate the menu; this adds items to the action bar if it is present. 
    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Zeigt nur die die nicht in Actionbar sind, kann aber eingestellt 
     // werden im XML-File 

     if (helpVisible) { 
      getSupportMenuInflater().inflate(
        R.menu.act_select_menu_help_visible, menu); 

     } else { 
      getSupportMenuInflater().inflate(
        R.menu.act_select_menu_registerlist_visible, menu); 
     } 

     return true; 
    } 

    // Was passiert wenn ein Menüpunkt ausgewählt wird 
    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle item selection 
     switch (item.getItemId()) { 
      // Das wenn der Knopf das Plus war 
      case R.id.menu_help: 
       changeFragment(); 
       // this.supportInvalidateOptionsMenu(); 
       break; 
      case android.R.id.home: 
       changeFragment(); 
       // this.supportInvalidateOptionsMenu(); 
       break; 
      case R.id.menu_add_register: 
       FragmentManager fm = getSupportFragmentManager(); 

       NewRegisterFragment dialog = new NewRegisterFragment(); 
       dialog.setRetainInstance(true); 
       dialog.show(fm, "fragment_name"); 
       break; 
      // Listenelement hinzufügen und dem Adapter sagen es hat sich was 
      // geändert, mach neu 

     } 
     return true; 
    } 

    @Override 
    public boolean onKeyDown(int keyCode, KeyEvent event) { 
     // TODO Auto-generated method stub 
     switch (keyCode) { 
      case KeyEvent.KEYCODE_BACK: 
       if (helpVisible = true) { 
        // changeFragment(); 
        helpVisible = false; 
        getSupportActionBar().setDisplayHomeAsUpEnabled(false); 
        supportInvalidateOptionsMenu(); 

       } 
       break; 

     } 

     return super.onKeyDown(keyCode, event); 
    } 

    private void addFragments() { 

     // Zuerst versuchen Fragmente aus dem Layout zu laden 
     registerListFragment = (RegisterListFragment) getSupportFragmentManager() 
       .findFragmentById(R.id.registerListFragment); 
     helpFragment = (HelpFragment) getSupportFragmentManager() 
       .findFragmentById(R.id.HelpFragment); 

     // Wenn die Fragmente nicht im Layout sind, füge sie dynamisch hinzu 
     if (registerListFragment == null && helpFragment == null) { 

      FragmentTransaction ft = getSupportFragmentManager() 
        .beginTransaction(); 

      registerListFragment = new RegisterListFragment(); 

      helpFragment = new HelpFragment(); 

      ft.setCustomAnimations(android.R.anim.fade_in, 
        android.R.anim.fade_out, android.R.anim.fade_in, 
        android.R.anim.fade_out); 

      ft.add(R.id.Fragmentframe, registerListFragment); 
      ft.add(R.id.Fragmentframe, helpFragment); 
      ft.show(registerListFragment); 
      ft.hide(helpFragment); 
      ft.commit(); 

      // OnclickListener für Fragmentwechseln 

     } 

    } 

    private void changeFragment() { 

     // Fragmente austauschen 
     FragmentManager fm = getSupportFragmentManager(); 
     FragmentTransaction ft = fm.beginTransaction(); 
     if (registerListFragment.isVisible()) { 
      ft.hide(registerListFragment); 
      ft.show(helpFragment); 

      helpVisible = true; 
      supportInvalidateOptionsMenu(); 

      getSupportActionBar().setDisplayHomeAsUpEnabled(true); 

      if (getSupportFragmentManager().findFragmentByTag(
        "RegisterListFragment") == null) { 
       ft.addToBackStack("RegisterListFragment"); 
      } 
     } else { 
      ft.hide(helpFragment); 

      helpVisible = false; 
      supportInvalidateOptionsMenu(); 
      getSupportActionBar().setDisplayHomeAsUpEnabled(false); 

      fm.popBackStack(); 
     } 

     ft.commit(); 
    } 

    private void setLargeInLandscape() { 
     if ((getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_LARGE) { 
      setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); 
      findViewById(R.id.menu_help).setVisibility(View.GONE); 
     } 
     if ((getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE) { 
      setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); 
      findViewById(R.id.menu_help).setVisibility(View.GONE); 
     } 

    } 

    @Override 
    public void OnRegisterCreated() { 
     // TODO Auto-generated method stub 
     registerListFragment.refreshData(); 

    } 

istediğiniz Veritabanına eklenir diyalog Çok denedim ama gerçekten anlamadım. Umarım bana yardım edebilirsin.

Teşekkür :)

Answer 1

ListView yenilemek veya farklı bir adaptör ile hafızada verileri tutmak için bu

public void refresh(){ 
    adapter = new RegisterListAdapter(getActivity()); 
    list.setAdapter(adapter); 
} 

yapabilirsiniz.

DÜZENLEME: Üzgünüm Sorunuzun ilk seferinde okumadım, sen adaptörü bu yazabilirsiniz:

public void addNewRow(String row){ 
    this.data.add(row); 
    this.notifyDataSetChanged(); 
} 

Answer 2

deneyin ListView.invalidateViews() yenileme içeriği