（Android / Java）如果类没有活动，如何给上下文提供参数？

Question

I have a JSONParser class where I have this:

Database db = new Database(/* Need context here! */);

In the Database class I have this:

public Database(Context context) {
    super(context, DATABASE_NAME, null, 1);
    SQLiteDatabase db = this.getWritableDatabase();
}

How am I supposed to give a context in the Database constructor?

Thanks for any help...

Answer 1

Have your JSONParser class constructor take a Context parameter. In the activity/fragment where you instantiate the JSONParser, pass the context. Pass this context to the Database class. This is the clean way of doing it. You could also use the application context like @Ivan commented.