응용 프로그램이 강제 종료됩니다. SQLite 관련 일 수 있습니다.

Question

SQLite 지원으로 응용 프로그램을 만들려고합니다. 그러나 내가 응용 프로그램을 시작하면 그냥 멈추고 강제로 종료해야합니다. Main.java 클래스 :

package se.maxallan.birdsound; 

import android.os.Bundle; 
import android.app.Activity; 
import android.database.Cursor; 
import android.widget.ListView; 
import android.widget.SimpleCursorAdapter; 

public class Main extends Activity { 
private SpeciesDbAdapter dbHelper; 
private SimpleCursorAdapter dataAdapter; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    dbHelper = new SpeciesDbAdapter(this); 
    dbHelper.open(); 

    dbHelper.insertSomeSpecies(); 
    displayListView(); 


} 
private void displayListView() { 
    Cursor cursor = dbHelper.fetchAllSpecies(); 

    String[] columns = new String[]{ 
     SpeciesDbAdapter.DB_SCF_NAME, 
     SpeciesDbAdapter.DB_T_TRANS 
    }; 
    int[] to = new int[]{ 
     R.id.scf, 
     R.id.trans 
    }; 
    dataAdapter = new SimpleCursorAdapter(this,R.layout.specierow,cursor,columns,to); 
    ListView listView = (ListView) findViewById(R.id.specieList); 
     // Assign adapter to ListView 
    listView.setAdapter(dataAdapter); 
} 

} 

나는 오류가 SpeciesDbAdapter.java라는 이름의이 클래스에 위치하고 있습니다 생각합니다.

package se.maxallan.birdsound; 

    import android.content.ContentValues; 
    import android.content.Context; 
    import android.database.Cursor; 
    import android.database.SQLException; 
    import android.database.sqlite.SQLiteDatabase; 
    import android.database.sqlite.SQLiteOpenHelper; 
    import android.util.Log; 

    public class SpeciesDbAdapter extends SQLiteOpenHelper{ 
public static final String DB_SPECIE_ID = "_id"; 
public static final String DB_SCF_NAME = "scf_name"; 

public static final String DB_T_LANG = "lang"; 
public static final String DB_T_TRANS = "translated"; 

private static SpeciesDbAdapter mDbHelp; 
private static SQLiteDatabase mDb; 

private static final String DB_NAME = "database.db"; 
private static final String DB_TBL_SPECIES = "species"; 
private static final String DB_TBL_TRANSLATIONS = "translations"; 
//private static final String DB_TBL_SOUNDS = "sounds"; 
private static final int DB_VERSION = 1; 

private final Context mCtx; 

private static String DB_CREATE = 
"CREATE TABLE if not exists species ("+DB_SPECIE_ID +" integer PRIMARY KEY autoincrement, "+DB_SCF_NAME+" , UNIQUE ("+DB_SPECIE_ID +"));" + 
"CREATE TABLE if not exists translations (tid integer PRIMARY KEY autoincrement, "+DB_SPECIE_ID +" integer, "+DB_T_TRANS+", "+DB_T_LANG+", UNIQUE (tid));"; 

public SpeciesDbAdapter(Context context) { 
    super(context, DB_NAME, null, DB_VERSION); 
    this.mCtx = context; 
} 
@Override 
public void onCreate(SQLiteDatabase db) { 
    Log.w("DATABAS", DB_CREATE); 
    db.execSQL(DB_CREATE); 
} 
@Override 
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
} 

//Open the database 
public SpeciesDbAdapter open() throws SQLException { 
    mDbHelp = new SpeciesDbAdapter(mCtx); 
    mDb = mDbHelp.getWritableDatabase(); 
    return this; 
} 
//Close the connection 
public void close() { 
    if (mDbHelp != null) { 
     mDbHelp.close(); 
    } 
} 

public void addSpecie(String scf, String translation, String lang){ 
    ContentValues specieValues = new ContentValues(); 
    ContentValues translationsValues = new ContentValues(); 
    specieValues.put(DB_SCF_NAME, scf); 
    int LastInsertedId = (int) mDb.insert(DB_TBL_SPECIES, null, specieValues); 
    translationsValues.put(DB_T_LANG, lang); 
    translationsValues.put(DB_T_TRANS, translation); 
    translationsValues.put(DB_SPECIE_ID, LastInsertedId); 
    mDb.insert(DB_TBL_TRANSLATIONS, null, translationsValues); 
} 
public Cursor fetchAllSpecies() { 
    Cursor mCursor = mDb.query(DB_TBL_SPECIES, new String[] {DB_SPECIE_ID, DB_SCF_NAME},null, null, null, null, null); 
    if (mCursor != null) { 
     mCursor.moveToFirst(); 
    } 
    return mCursor; 
} 
public void insertSomeSpecies() { 
    addSpecie("Cygnus olor", "Knölsvan", "sv"); 
    addSpecie("Cygnus cygnus", "Sångsvan", "sv"); 
} 

} 

나는 뭔가를 오해 한 것 같습니다. 그리고 CatLog 당신은 두 가지를 조회

String createSpecies = "CREATE TABLE if not exists species ("+DB_SPECIE_ID +" integer PRIMARY KEY autoincrement, "+DB_SCF_NAME+" , UNIQUE ("+DB_SPECIE_ID +"));" 
String createTranslations = "CREATE TABLE if not exists translations (tid integer PRIMARY KEY autoincrement, "+DB_SPECIE_ID +" integer, "+DB_T_TRANS+", "+DB_T_LANG+", UNIQUE (tid));"; 

@Override 
public void onCreate(SQLiteDatabase db) 
{ 
    Log.w("DATABAS", DB_CREATE); 
    db.execSQL(createSpecies); 
    db.execSQL(createTranslations); 
} 

Answer 1

문제는 당신이이 방법을 하나의 변수에서 SQL 문을 만들려고 실행된다는 것입니다 ... 전혀 로그를 제공하지 않습니다 테이블이지만 columns은 하나의 테이블에 있어야합니다.

Answer 2

String[] columns = new String[]{ 
    SpeciesDbAdapter.DB_SCF_NAME, 
    SpeciesDbAdapter.DB_T_TRANS } 

,