Android錯誤：關閉（）從未在數據庫上明確調用

不知道有什麼問題，我試圖添加更多的表時，我已經在一個表上工作的數據庫，並且表示已經設置了新表。Android錯誤：關閉（）從未在數據庫上明確調用

活動發送一個枚舉告訴它要尋找什麼類型的位置處，即以解決什麼表

這是類手柄的SQL

package com.android.TestApp; 

import android.app.Activity; 
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; 


public class Location extends Activity{ 

public static final String KEY_SHOPROWID = "_id"; 
public static final String KEY_SHOPNAME = "shop_name"; 
public static final String KEY_SHOPADDRESS = "shop_address"; 
public static final String KEY_SHOPDESCRIPTION = "shop_description"; 
public static final String KEY_SHOPPOST = "shop_post"; 
public static final String KEY_SHOPRATE = "shop_rate"; 
public boolean ISNOT = false; 

private static final String DATABASE_NAME = "NewLocationDataBase"; 
private static final String DATABASE_SHOPTABLE = "shop_table"; 
private static final String DATABASE_CAFETABLE = "cafe_table"; 
private static final String DATABASE_RESTURANTTABLE ="resturant_table"; 
private static final String DATABASE_HOTELTABLE = "hotel_table"; 

private static final int DATABASE_VERSION = 1; 

private DbHelper theHelper; 
private final Context theContext; 
private SQLiteDatabase theDataBase; 

public class DbHelper extends SQLiteOpenHelper{ 

    public DbHelper(Context context) { 
     super(context, DATABASE_NAME, null, DATABASE_VERSION); 
     // TODO Auto-generated constructor stub 
    } 

    @Override 
    public void onCreate(SQLiteDatabase db) { 
     // TODO Auto-generated method stub 
     db.execSQL("CREATE TABLE " + DATABASE_SHOPTABLE + " ("+ 
      KEY_SHOPROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + 
      KEY_SHOPNAME + " TEXT NOT NULL, " + 
      KEY_SHOPADDRESS + " TEXT NOT NULL, " + 
      KEY_SHOPDESCRIPTION + " TEXT NOT NULL, " + 
      KEY_SHOPPOST + " TEXT NOT NULL, " + 
      KEY_SHOPRATE + " INTEGER);" 
      ); 

     db.execSQL("CREATE TABLE " + DATABASE_CAFETABLE + " (" + 
       KEY_SHOPROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + 
       KEY_SHOPNAME + " TEXT NOT NULL, " + 
       KEY_SHOPADDRESS + " TEXT NOT NULL, " + 
       KEY_SHOPDESCRIPTION + " TEXT NOT NULL, " + 
       KEY_SHOPPOST + " TEXT NOT NULL, " + 
       KEY_SHOPRATE + " INTEGER);" 
       ); 

     db.execSQL("CREATE TABLE " + DATABASE_RESTURANTTABLE + " (" + 
       KEY_SHOPROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + 
       KEY_SHOPNAME + " TEXT NOT NULL, " + 
       KEY_SHOPADDRESS + " TEXT NOT NULL, " + 
       KEY_SHOPDESCRIPTION + " TEXT NOT NULL, " + 
       KEY_SHOPPOST + " TEXT NOT NULL, " + 
       KEY_SHOPRATE + " INTEGER);" 
       ); 

     db.execSQL("CREATE TABLE " + DATABASE_HOTELTABLE + " (" + 
       KEY_SHOPROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + 
       KEY_SHOPNAME + " TEXT NOT NULL, " + 
       KEY_SHOPADDRESS + " TEXT NOT NULL, " + 
       KEY_SHOPDESCRIPTION + " TEXT NOT NULL, " + 
       KEY_SHOPPOST + " TEXT NOT NULL, " + 
       KEY_SHOPRATE + " INTEGER);" 
       ); 

    } 

    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
     // TODO Auto-generated method stub 
     db.execSQL("DROP TABLE IF EXISTS " + DATABASE_SHOPTABLE); 
     db.execSQL("DROP TABLE IF EXISTS " + DATABASE_CAFETABLE); 
     db.execSQL("DROP TABLE IF EXISTS " + DATABASE_RESTURANTTABLE); 
     db.execSQL("DROP TABLE IF EXISTS " + DATABASE_HOTELTABLE); 
     onCreate(db); 
    } 

} 

public Location(Context c){ 
    theContext = c; 
} 

public void createEntry(LocationType type, String name, String address, String description, 
     String post, int rate) { 
    // TODO Auto-generated method stub 

    ContentValues cv = new ContentValues(); 
    cv.put(KEY_SHOPNAME, name); 
    cv.put(KEY_SHOPADDRESS, address); 
    cv.put(KEY_SHOPDESCRIPTION, description); 
    cv.put(KEY_SHOPPOST, post); 
    cv.put(KEY_SHOPRATE, rate); 
    switch(type){ 
    case shop: 
     theDataBase.insert(DATABASE_SHOPTABLE, null, cv); 
    } 
} 

public Location writeOpen() throws SQLException{ 
    theHelper = new DbHelper(theContext); 
    theDataBase = theHelper.getWritableDatabase(); 
    return this; 
} 

public Location readOpen(){ 
    theHelper = new DbHelper(theContext); 
    theDataBase = theHelper.getReadableDatabase(); 
    return this; 
} 

public void writeClose(){ 
    if(theHelper!=null){ 
     theHelper.close(); 
    } 
} 
public void readClose(){ 
    if(theHelper!=null){ 
     theHelper.close(); 
    } 
} 


public boolean isEmpty(LocationType type){ 
    String [] data = {KEY_SHOPNAME}; 
    Cursor c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
    int size = 0; 
    switch(type){ 
    case shop: 
     c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
    case cafe: 
     c = theDataBase.query(DATABASE_CAFETABLE, data, null, null, null, null, null); 
    case resturant: 
     c = theDataBase.query(DATABASE_RESTURANTTABLE, data, null, null, null, null, null); 
    } 
    size = 0; 
    for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
     size = size+1; 
    } 
    if(size ==0){ 
     return true; 
    }else{ 
     return false; 
    } 
} 

public String [] getNames(LocationType type){ 
    String [] data = {KEY_SHOPNAME}; 
    int size = 0; 
    Cursor c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
    switch(type){ 
    case shop: 
     c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case cafe: 
     c = theDataBase.query(DATABASE_CAFETABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case resturant: 
     c = theDataBase.query(DATABASE_RESTURANTTABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    } 

    String [] Names = new String [size]; 
    String name = ""; 
    int nameIndex = c.getColumnIndex(KEY_SHOPNAME); 
    int index = 0; 
    for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
     name = c.getString(nameIndex); 
     Names[index] = name; 
     index = index+1; 
    } 
    return Names; 
} 

public String [] getDescription(LocationType type){ 
    String [] data = {KEY_SHOPDESCRIPTION}; 
    Cursor c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
    int size = 0; 
    switch(type){ 
    case shop: 
     c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
     size = size+1; 
     } 
    case cafe: 
     c = theDataBase.query(DATABASE_CAFETABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case resturant: 
     c = theDataBase.query(DATABASE_RESTURANTTABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    } 

    String [] Descriptions = new String [size]; 
    String desc = ""; 
    int descIndex = c.getColumnIndex(KEY_SHOPDESCRIPTION); 
    int index = 0; 
    for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
     desc = c.getString(descIndex); 
     Descriptions[index] = desc; 
     index = index+1; 
    } 
    return Descriptions; 
} 

public String [] getAddress(LocationType type){ 
    String [] data = {KEY_SHOPADDRESS}; 
    Cursor c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
    int size = 0; 
    switch(type){ 
    case shop: 
     c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case cafe: 
     c = theDataBase.query(DATABASE_CAFETABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case resturant: 
     c = theDataBase.query(DATABASE_RESTURANTTABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    } 

    String [] Address = new String [size]; 
    String address = ""; 
    int addressIndex = c.getColumnIndex(KEY_SHOPADDRESS); 
    int index = 0; 
    for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
     address = c.getString(addressIndex); 
     Address[index] = address; 
     index = index+1; 
    } 
    return Address; 
} 

public String [] getPost(LocationType type){ 

    String [] data = {KEY_SHOPPOST}; 
    Cursor c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
    int size = 0; 
    switch(type){ 
    case shop: 
     c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case cafe: 
     c = theDataBase.query(DATABASE_CAFETABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case resturant: 
     c = theDataBase.query(DATABASE_RESTURANTTABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    } 

    String [] Post = new String [size]; 
    String post = ""; 
    int addressIndex = c.getColumnIndex(KEY_SHOPPOST); 
    int index = 0; 
    for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
     post = c.getString(addressIndex); 
     Post[index] = post; 
     index = index+1; 
    } 
    return Post; 
} 


public String [] getRow(LocationType type){ 

    String [] data = {KEY_SHOPROWID}; 
    Cursor c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
    int size = 0; 
    switch(type){ 
    case shop: 
     c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case cafe: 
     c = theDataBase.query(DATABASE_CAFETABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case resturant: 
     c = theDataBase.query(DATABASE_RESTURANTTABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    } 

    String [] Post = new String [size]; 
    String post = ""; 
    int addressIndex = c.getColumnIndex(KEY_SHOPROWID); 
    int index = 0; 
    for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
     post = c.getString(addressIndex); 
     Post[index] = post; 
     index = index+1; 
    } 
    return Post; 
} 

public int [] getRate(LocationType type){ 
    String [] data = {KEY_SHOPRATE}; 
    Cursor c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
    int size = 0; 
    switch(type){ 
    case shop: 
     c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case cafe: 
     c = theDataBase.query(DATABASE_CAFETABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    case resturant: 
     c = theDataBase.query(DATABASE_RESTURANTTABLE, data, null, null, null, null, null); 
     size = 0; 
     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
      size = size+1; 
     } 
    } 
    int [] rate = new int [size]; 
    int Rate = 0; 
    int addressIndex = c.getColumnIndex(KEY_SHOPRATE); 
    int index = 0; 
    for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
     Rate = c.getInt(addressIndex); 
     rate[index] = Rate; 
     index = index+1; 
    } 
    return rate; 
} 

public void updateEntry(String index, LocationType type, String nameNew, 
     String addressNew, String descriptionNew, String postNew) { 
    // TODO Auto-generated method stub 
    ContentValues cvUpdate = new ContentValues(); 
    cvUpdate.put(KEY_SHOPNAME, nameNew); 
    cvUpdate.put(KEY_SHOPADDRESS, addressNew); 
    cvUpdate.put(KEY_SHOPDESCRIPTION, descriptionNew); 
    cvUpdate.put(KEY_SHOPPOST, postNew); 
    switch(type){ 
    case shop: 
     theDataBase.update(DATABASE_SHOPTABLE, cvUpdate, KEY_SHOPROWID + "=" + index, null); 
    case cafe: 
     theDataBase.update(DATABASE_CAFETABLE, cvUpdate, KEY_SHOPROWID + "=" + index, null); 
    case resturant: 
     theDataBase.update(DATABASE_RESTURANTTABLE, cvUpdate, KEY_SHOPROWID + "=" + index, null); 
    } 


} 

public int getSize(LocationType type) { 
    // TODO Auto-generated method stub 
    String [] data = {KEY_SHOPPOST}; 
    int size = 0; 
    Cursor c = theDataBase.query(DATABASE_CAFETABLE, data, null, null, null, null, null); 
    switch(type){ 
    case shop: 
     c = theDataBase.query(DATABASE_SHOPTABLE, data, null, null, null, null, null); 
    case cafe: 
     c = theDataBase.query(DATABASE_CAFETABLE, data, null, null, null, null, null); 
    case resturant: 
     c = theDataBase.query(DATABASE_RESTURANTTABLE, data, null, null, null, null, null); 
    } 
    size = 0; 
    for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){ 
     size = size+1; 
    } 

    return size; 
} 

public void removeEntry(String rowId, LocationType type) { 
    // TODO Auto-generated method stub 
    switch(type){ 
    case shop: 
     theDataBase.delete(DATABASE_SHOPTABLE, KEY_SHOPROWID + "=" + rowId, null); 

    } 

} 

public void setRating(String row, LocationType type, int newRating) { 
    // TODO Auto-generated method stub 
    ContentValues cvnewRate = new ContentValues(); 
    cvnewRate.put(KEY_SHOPRATE,newRating); 
    switch(type){ 
    case shop: 
     theDataBase.update(DATABASE_SHOPTABLE, cvnewRate, KEY_SHOPROWID + "=" + row, null); 
    } 


}

這是活動

package com.android.TestApp; 

import android.app.Dialog; 
import android.app.ListActivity; 
import android.content.Intent; 
import android.database.Cursor; 
import android.os.Bundle; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.AdapterView; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.ListView; 
import android.widget.TextView; 
import android.widget.AdapterView.OnItemClickListener; 

public class ShowActivity extends ListActivity { 

protected LocationType Type = LocationType.shop; 

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



    try{ 


     Location test = new Location(this); 
     if(test.isEmpty(Type)){ 
      switch(Type){ 
      case shop: 
       String [] Names = getResources().getStringArray(R.array.shopName); 
       String [] Description = getResources().getStringArray(R.array.shop_descrt); 
       String [] Address = getResources().getStringArray(R.array.shop_address); 
       String [] Post = getResources().getStringArray(R.array.shop_post); 
       int [] Rate = getResources().getIntArray(R.array.shop_rate); 

       for(int i = 0; Names.length >i; i++){ 
       Location starting = new Location(this); 
       starting.writeOpen(); 
       starting.createEntry(Type, Names[i], Address[i], Description[i], Post[i], Rate[i]); 
       starting.writeClose(); 
       } 

      case cafe: 
       String [] cafeNames = getResources().getStringArray(R.array.cafeName); 
       String [] cafeDescription = getResources().getStringArray(R.array.cafe_descrt); 
       String [] cafeAddress = getResources().getStringArray(R.array.cafe_address); 
       String [] cafePost = getResources().getStringArray(R.array.cafe_post); 
       int [] cafeRate = getResources().getIntArray(R.array.cafe_rate); 

       for(int i = 0; cafeNames.length >i; i++){ 
       Location starting = new Location(this); 
       starting.writeOpen(); 
       starting.createEntry(Type, cafeNames[i], cafeAddress[i], cafeDescription[i], cafePost[i], cafeRate[i]); 
       starting.writeClose(); 
       } 
      case resturant: 
       String [] resturantNames = getResources().getStringArray(R.array.resturantName); 
       String [] resturantDescription = getResources().getStringArray(R.array.resturant_desct); 
       String [] resturantAddress = getResources().getStringArray(R.array.resturant_address); 
       String [] resturantPost = getResources().getStringArray(R.array.resturant_post); 
       int [] resturantRate = getResources().getIntArray(R.array.resturant_rate); 

       for(int i = 0; resturantNames.length >i; i++){ 
       Location starting = new Location(this); 
       starting.writeOpen(); 
       starting.createEntry(Type, resturantNames[i], resturantAddress[i], resturantDescription[i], resturantPost[i], resturantRate[i]); 
       starting.writeClose(); 
       } 

      case hotel: 
       String [] hotelNames = getResources().getStringArray(R.array.shopName); 
       String [] hotelDescription = getResources().getStringArray(R.array.shop_descrt); 
       String [] hotelAddress = getResources().getStringArray(R.array.shop_address); 
       String [] hotelPost = getResources().getStringArray(R.array.shop_post); 
       int [] hotelRate = {2,3,3,5,1}; 

       for(int i = 0; hotelNames.length >i; i++){ 
       Location starting = new Location(this); 
       starting.writeOpen(); 
       starting.createEntry(Type, hotelNames[i], hotelAddress[i], hotelDescription[i], hotelPost[i], hotelRate[i]); 
       starting.writeClose(); 
       } 
      } 

     } 
    }catch(Exception e){ 
     Dialog d = new Dialog(this); 
     String error = e.toString(); 
     d.setTitle("the Database is not set up sorry set up"); 
     TextView tv = new TextView(this); 
     tv.setText(error); 
     d.setContentView(tv); 
     d.show(); 
    } 


    try{ 

      Location Table = new Location(this); 
      Table.readOpen(); 
      String [] name= Table.getNames(Type); 
      Table.readClose(); 

     ListView ln = getListView(); 
     setListAdapter(new ArrayAdapter<String>(this, R.layout.listitem, name)); 

     ln.setTextFilterEnabled(true); 

     ln.setOnItemClickListener((new OnItemClickListener() { 
      public void onItemClick(AdapterView<?> parent, View view, 
        int position, long id) { 

        int index = (int) (id); 

        Intent intent = new Intent(view.getContext(), Layout.class); 
        intent.putExtra("index", index); 
        intent.putExtra("type", Type); 
        startActivityForResult(intent,0); 
        } 

     })); 

    }catch(Exception e){ 
     Dialog d = new Dialog(this); 
     String error = e.toString(); 
     d.setTitle("could not display info"); 
     TextView tv = new TextView(this); 
     tv.setText(error); 
     d.setContentView(tv); 
     d.show(); 
    } 
}

}

EDIT 1：意識到我在開始時並沒有在測試時調用writeClose（），並且我無法使用listActivity調用onDestroy，所以我創建了一個緩衝區活動，檢查test.isEmpty（），現在再次適用於商店，

認爲在當前位置的代碼中的問題在OnCreate或與此

 Location test = new Location(this); 
    try{ 

     test.writeOpen(); 
     if(test.isEmpty(Type)){ 
      switch(Type){ 
      case 1: 
       String [] Names = getResources().getStringArray(R.array.shopName); 
       String [] Description = getResources().getStringArray(R.array.shop_descrt); 
       String [] Address = getResources().getStringArray(R.array.shop_address); 
       String [] Post = getResources().getStringArray(R.array.shop_post); 
       int [] Rate = getResources().getIntArray(R.array.shop_rate); 

       for(int i = 0; Names.length >i; i++){ 
       Location starting = new Location(this); 
       starting.writeOpen(); 
       starting.createEntry(Type, Names[i], Address[i], Description[i], Post[i], Rate[i]); 
       starting.writeClose(); 
       } 

     // case 2: 
      // String [] cafeNames =   getResources().getStringArray(R.array.cafeName); 
    //    String [] cafeDescription = getResources().getStringArray(R.array.cafe_descrt); 
    //    String [] cafeAddress = getResources().getStringArray(R.array.cafe_address); 
    //    String [] cafePost = getResources().getStringArray(R.array.cafe_post); 
    //    int [] cafeRate = getResources().getIntArray(R.array.cafe_rate); 
    //     
    //    for(int i = 0; cafeNames.length >i; i++){ 
    //     Location starting = new Location(this); 
    //     starting.writeOpen(); 
    //     starting.createEntry(Type, cafeNames[i], cafeAddress[i], cafeDescription[i], cafePost[i], cafeRate[i]); 
    //     starting.writeClose(); 
    //    } 
    //   case 3: 
    //    String [] resturantNames = getResources().getStringArray(R.array.resturantName); 
    //    String [] resturantDescription = getResources().getStringArray(R.array.resturant_desct); 
    //    String [] resturantAddress = getResources().getStringArray(R.array.resturant_address); 
    //    String [] resturantPost = getResources().getStringArray(R.array.resturant_post); 
    //    int [] resturantRate = getResources().getIntArray(R.array.resturant_rate); 
    //     
    //    for(int i = 0; resturantNames.length >i; i++){ 
    //     Location starting = new Location(this); 
    //     starting.writeOpen(); 
    //     starting.createEntry(Type, resturantNames[i], resturantAddress[i], resturantDescription[i], resturantPost[i], resturantRate[i]); 
    //     starting.writeClose(); 
    //    } 

     // case hotel: 
      // String [] hotelNames = getResources().getStringArray(R.array.shopName); 
      // String [] hotelDescription = getResources().getStringArray(R.array.shop_descrt); 
      // String [] hotelAddress = getResources().getStringArray(R.array.shop_address); 
      // String [] hotelPost = getResources().getStringArray(R.array.shop_post); 
      // int [] hotelRate = {2,3,3,5,1}; 

      // for(int i = 0; hotelNames.length >i; i++){ 
      // Location starting = new Location(this); 
      // starting.writeOpen(); 
      // starting.createEntry(Type, hotelNames[i], hotelAddress[i], hotelDescription[i], hotelPost[i], hotelRate[i]); 
      // starting.writeClose(); 
      // } 
      } 

     } 
     test.writeClose(); 
    }catch(Exception e){ 
     Dialog d = new Dialog(this); 
     String error = e.toString(); 
     d.setTitle("the Database is not set up sorry set up"); 
     TextView tv = new TextView(this); 
     tv.setText(error); 
     d.setContentView(tv); 
     d.show(); 
    } 
    test.writeClose();

來源

2011-12-07 user1086501

你需要顯式調用close方法就可以使用你的數據庫適配器實例後。

theHelper.close();

這應該有所幫助。

來源

2011-12-07 21:19:06 Suchi

這樣，我調用close（）的位置對象，這就要求無論是閱讀關閉或writeclose取決於我稱之爲這是在位置（SQL文件）宣佈此調用close上theHelper – user1086501

你需要調用它裏面你readClose和writeClose函數，因爲它不是一個靜態變量。 – Suchi

你的權利發現，伴隨着我做出的其他錯誤，包括不把我的代碼切換部分的休息，歡呼聲，明天會發布修復程序，以防萬一我做了什麼 – user1086501

在你的類處理SQL datbase創建這樣一個公共方法..

public void close(){ 
theDatabse.close(); 
}

而在你的代碼中使用DATABSE確保您撥打

theHelper.close();

當你完成訪問數據庫或者你在你的onDestroy（）;

來源

2011-12-07 21:30:20

我是否在位置對象上調用close（），這會調用read close或writeclose，具體取決於我調用的哪個位置（SQl文件）中聲明的位置，這稱爲關閉幫助器 – user1086501

Android錯誤：關閉（）從未在數據庫上明確調用

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