Android-如何从内置电话访问sqlite数据库？

Question

I've created an app using Eclipse + ADT that reads and write into a sqlite db, it works fine on Android terminal emulator, but, running from the phone itself, it does not populate the Spinners from db, which means it does not locate db in internal memory, I already checked with adb shell if the db is on the phone and it's there, so I guess I need to give root permissions to the app to allow it to use the db, how can I do this? my phone is a Motorola Defy and it's rooted, thanks in advanced, have a nice day.

EDIT: This is my class to create the table and adds the methods onCreate and onUpdate:

public class passwordSQLiteHelper extends SQLiteOpenHelper{

String SqlCreate = "CREATE TABLE password(id INTEGER, name TEXT, password TEXT)";

public passwordSQLiteHelper(Context context, String name,
        CursorFactory factory, int version) {
    super(context, name, factory, version);
    // TODO Auto-generated constructor stub
}

@Override
public void onCreate(SQLiteDatabase db) {
    // TODO Auto-generated method stub
    db.execSQL(SqlCreate);

}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    // TODO Auto-generated method stub
    db.execSQL("DROP TABLE IF EXISTS password");
    db.execSQL(SqlCreate);

}

}

And I'm calling it from the main class when the activity starts:

passwordSQLiteHelper passUserDb = new passwordSQLiteHelper(this, "/data/data/com.project.otto/databases/password", null, 1);

On the terminal works great, but not on the phone where seems like it can't find the db, I checked with adb and it's there, please help me out, thanks!

Answer 1

First, I wouldn't specify the full path to the database in the constructor. Just the filename should be fine (since Android will automatically create it in your applications private data area).

public PasswordDatabase(Context context {
    super(context, "password.db", null, 1);
}

And create it via:

PasswordDatabase db = new PasswordDatabase(this);

If you look at the docs for SQLiteOpenHelper , it states that the database will not be created until either getReadableDatabase() or getWriteableDatabase() are called. So, I'd try calling one of those methods and then check that the database was created.