Question

I have a conundrum, I do know how to call method from other activity.. crating object etc..

But I have dbHelper.java that deal with creating sql little tables etc and start like:

public class dbHelper extends SQLiteOpenHelper {
.
.
.
}

it works fine but i have method there that check when the DB version change and recreate DB tables etc..

like:

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // pri zmene verzie DB dropne tabulku
        Log.w("DATA", "Upgrading database from version " + oldVersion + " to " + newVersion); 
        db.execSQL("DROP TABLE IF EXISTS plan");
        db.execSQL("DROP TABLE IF EXISTS contacts");

        this.onCreate(db);
}

but I need to store also shared preference that I use to tell application that its new start… however its kind of strange i try :

    SharedPreferences sharedPreferences = getSharedPreferences(PREFERENCE_FILENAME,MODE_PRIVATE);
    SharedPreferences.Editor editor = sharedPreferences.edit();
    editor.putString("FS", "1");
    editor.commit();

But MODE_PRIVATE get underlined as error, even when I try call method from other activity creating object like this for example: dataManager db = new dataManager(this); where is method to store shared preference I get still underlined it as error…

Any idea what might be the issue ? I’m learning java but still no idea :-/

Vlad

Answer 1

MODE_PRIVATE is a constant which is declared in Context class. Just change MODE_PRIVATE to Context.MODE_PRIVATE

This works fine inside the Activity’s method, cause’ Activity is a subclass of Context