CODEWITHSUNDEEP
androidandroid-listview
Babak Fakhriloo
Babak Fakhriloo

Reputation: 2126

make ListView uniquely identifiable in android

As I read from android sample, if I use SimpleCursorAdapter, it automatically set the id of list view to primary key of the table, so if I call the following event :

protected void onListItemClick(ListView l, View v, int position, long id) 
{
 ......
}

I can easily determine which item (row) of database has been selected, by reading the id parameter.

But I am populating my list view by implementing my own custom ArrayAdapter. As I explained in my former question. So I don't know how to get the selected ID of list view item.

My table just has two column, the _Id of long type and is primary key, and name of nvarchar type.

Thanks.

Upvotes: 0

Views: 115

Answers (2)

m1ntf4n
m1ntf4n

Reputation: 493

As your List<T> consists of custom data container objects, you just have to add a method such as getPrimaryKey() to that data container class. Now, in the method onListItemClicked, you can easily read that key by doing

DataContainer dataContainer = myDataList.get(position);
int primaryKey = dataContainer.getPrimaryKey();

or simply

int primaryKey = myDataList.get(position).getPrimaryKey();

Upvotes: 1

Joel Skrepnek
Joel Skrepnek

Reputation: 1661

Extend CursorAdapter instead of ArrayAdapter. Then override bindView and newView to implement custom logic and behaviour.

Upvotes: 0

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