when I was implementing open helper based on docum...

# anko

[damianpetla]

when I was implementing open helper based on documentation I also changed synchronizing instance creation

fun getInstance(ctx: Context): MyDatabaseOpenHelper {
            synchronized(this) {
                if (instance == null) {
                    instance = MyDatabaseOpenHelper(ctx.applicationContext)
                }
            }
            return instance!!
        }