SQLite bekomme nur den letzten Datensatz anstelle aller Datensätze

Question

Ich habe 20 Datensätze in der SQlite-Datenbank.
Wenn ich GetOfflineRecords() -Methode aufrufen, erhalten Sie nur den letzten Datensatz 20 Mal.
Ich möchte alle Datensätze erhalten. Aber es wird zuletzt 20 Mal Rekord.

This link is use to get last row. I wish to get All rows

public void GetOfflineRecords() { 

     Log.d("Offline :", "Offline Data Retrive"); 

     String selectQueryFinal = "SELECT * FROM " + AppDatabase.TABLE_MARKER_LIST; 

     Log.d("SelectQuerry", selectQueryFinal); 
     final Cursor cursorFinal = db.rawQuery(selectQueryFinal, null); 
     Log.d("CurCount-Offline", cursorFinal.getCount() + " -crCountOffline"); 

     if (cursorFinal != null && cursorFinal.getCount() != 0) { 
      if (cursorFinal.moveToFirst()) { 
       do { 
        markerListResult = new Bean_Marker(); 
        markerListResult.setId(cursorFinal.getString(cursorFinal.getColumnIndex("id"))); 
        markerListResult.setPlace_name(cursorFinal.getString(cursorFinal.getColumnIndex("place_name"))); 
        markerListResult.setLatitude(cursorFinal.getString(cursorFinal.getColumnIndex("latitude"))); 
        markerListResult.setLongitude(cursorFinal.getString(cursorFinal.getColumnIndex("longitude"))); 
        markerListResult.setShort_description(cursorFinal.getString(cursorFinal.getColumnIndex("short_desctiption"))); 

        Log.e("ID : ", cursorFinal.getString(cursorFinal.getColumnIndex("id"))); 
        Log.e("Place Name : ", cursorFinal.getString(cursorFinal.getColumnIndex("place_name"))); 
        markerList.add(markerListResult); 
       } while (cursorFinal.moveToNext()); 

      } 

     } else { // No Records are there 
      Log.e("Cursor", "Cursor is empty"); 
      //dialogMessage.SingleButtonDialog(OfflineMap.this, "No Data Alert", "You have no offline data found"); 
     } 

     //listSurvey.setAdapter(new AdapterSurveyList(SurveyList.this, survey_listList, callClickListener, cameraClickListener)); 
    } 

Answer 1

Vor einmal überprüfen Länge Cursor implementieren, wenn das ok dann Debug-Cursor-Schleife und prüfen Sie jedes Mal (jeder Index) Sie richtigen Datensatz aus Anfrage gegeben werden.

Wenn alles ok dann gehen Sie mit unten Code-Snippet.

weil Problem möglicherweise Datensatz vom Cursor abrufen.

Einmal mit folgendem Code überprüfen:

public void GetOfflineRecords() { 

     String selectQueryFinal = "SELECT * FROM " + AppDatabase.TABLE_MARKER_LIST; 

     Log.d("SelectQuerry", selectQueryFinal); 
     final Cursor cursorFinal = db.rawQuery(selectQueryFinal, null); 
     Log.d("CurCount-Offline", cursorFinal.getCount() + " -crCountOffline");//Check length over here 

     ArrayList<Bean_Marker> markerList = new ArrayList<>(); 
     if (cursorFinal != null && cursorFinal.getCount() != 0) { 
      if (cursorFinal.moveToFirst()) { 
       do { 
        markerListResult = new Bean_Marker(); 
        markerListResult.setId(cursorFinal.getString(cursorFinal.getColumnIndex("id"))); 
        markerListResult.setPlace_name(cursorFinal.getString(cursorFinal.getColumnIndex("place_name"))); 
        markerListResult.setLatitude(cursorFinal.getString(cursorFinal.getColumnIndex("latitude"))); 
        markerListResult.setLongitude(cursorFinal.getString(cursorFinal.getColumnIndex("longitude"))); 
        markerListResult.setShort_description(cursorFinal.getString(cursorFinal.getColumnIndex("short_desctiption"))); 

        Log.e("ID : ", cursorFinal.getString(cursorFinal.getColumnIndex("id"))); 
        Log.e("Place Name : ", cursorFinal.getString(cursorFinal.getColumnIndex("place_name"))); 
        markerList.add(markerListResult); 
       } while (cursorFinal.moveToNext()); 

      } 

     } else { // No Records are there 
      Log.e("Cursor", "Cursor is empty"); 

     } 
     Log.e("Cursor", "markerList length"+markerList.size()); 
////Check length over here 

    } 

Wenn immer noch nicht dann die direkten Verwendung Spaltenindex

markerListResult.setId(cursorFinal.getString(0));