小编Giu*_*zzi的帖子

我不明白为什么我无法将我的db文件(abic_)复制到应用程序目录("/ data/data /"+ context.getPackageName()+"/ databases")

这是我的DataBaseHelper类:

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.IOException;import java.io.OutputStream;

import android.content.Context;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;


public class DataBaseHelper extends SQLiteOpenHelper{

    //The Android's default system path of your application database.
    private String DB_PATH;

    private static String DB_NAME = "abic_";
    private static final Integer DB_VERSION = 1;

    private SQLiteDatabase mydb; 

    private final Context myContext;

    /**
     * Constructor
     * Takes and keeps a reference of the passed context in order to access to …