Hi Mark!

hello, Carlos!

how can I help you today?

I feel embarrassed asking this question, but oohhh well...

has to do with notifications and removal of listview items

I'm setting reminders through AlarmManager for items in a ListView.

I'm passing around the bundle/intent through my activities, including my Schedule service that creates the notification.

IN that intent I'm also including the position of the item in the list view /adapter

what is "the bundle/intent"?

by bundle/intent I mean when passing data between activities/fragments I add the selected item data as an intent

OK

Then for creating the notification, the schedule service uses that intent data that includes all the info for the specific item in the listview

The problem that I'm having is that, because I include the item's list position in the intent, if another item gets deleted from the listview, the list position sent to alarmmanager (and received by the notification) is no longer valid

um

let's roll back a bit

Something very basic and obvious I'm missing in my implementation so that the data sent to the notification is not tied to the list position.

I have serious reservations about: "I'm setting reminders through AlarmManager for items in a ListView"

ok

aren't you setting reminders through AlarmManager for items in a database?

Basically I'm doing a todo type of app

User selects a specific item, sets the reminder, etc

Through my app code I sent to AlarmManager all the data model for the specific item/task

This includes the position of the item in the list

ignore the ListView

where are you *really* storing your items? a database? a file? on the Internet? something else?

I have them both in my Application object and in the sqlite db

great

so, in your database, you have a primary key for your todo list items, right?

Yes, an id of type long

*that's* your todo identifier, then, throughout your app

positions in a ListView are meaningless; primary keys are not

At some point I was brainstorming on that, but my next question is...

Once I retrieved the data for the specific item/task from the database (through the primary key) how to I connect that to my arrayadapter in case the user wants to do edits to the item? How do I use the primary key to retrieve where in the list is the item?

your ArrayAdapter is presumably an ArrayAdapter<ToDoItem>, or something along those lines

ToDoItem should know its primary key

I check the arrayadapter methods and was unable to find one that would let me send a custom object

I have no idea what you mean by "send a custom object"

Yes Mark that's is correct

your Application object, in theory, could hold a HashMap<Long, ToDoItem> as your in-memory cache

Are you saying that I should modify my getView() method to use the primary key?

that allows you to get the ToDoItem for a given primary key

from there, getPosition() on ArrayAdapter will give you the position in the list, should you need it

In my data models for the ToDo I also store the primary key, so in that case I wouldn't need the hash. I can do todo.getId()

or, in the reverse, when the user clicks on an item in the list, you know the ToDoItem via its position, and from there you know its primary key

the HashMap is to find the cached model object given the key

perhaps you won't need that

but I suspect that you will

so the way I would use get position is something like this: int position = getPosition(ToDOItem) ????

correct

Hmmm. /facepalm

Don't know how I missed that method

I don't have to implement that method myself with @Override, right?

no

it just calls indexOf() on the underlying ArrayList

lines 347-349

Just so that. Awesome. Thanks for your help Mark! That was my only question for today!

I'm happy to be useful!

Have a good evening! Bye!