小编use*_*193的帖子

我一直在尝试从资产文件夹复制一个sqlite数据库文件，以便创建一个sqlite数据库并在我的程序中使用它，这是代码：-

首先 SqliteOpenHelperClass

public class DBHandler extends SQLiteOpenHelper {
protected static final String DATABASE_NAME_PRODUCTION = "productionComments.db";

public DBHandler(Context context, String name, SQLiteDatabase.CursorFactory factory,
                     int version) {
        super(context, name, factory, DATABASE_VERSION);
    }

       //copy database from assets folder (.sqlite) file to an empty database
        public void copyDataBase() throws IOException{

        //Open your local db as the input stream
        InputStream myInput = context.getAssets().open("prod.db");

        // Path to the just created empty db
        String outFileName = "/data/data/com.qarun.qpcbeta/databases/"+DATABASE_NAME_PRODUCTION;

        //Open the empty db as the output stream
        OutputStream …