Saving Data on Android

Implemen/ng update
To implement the update function, open 
ToDoContentProvider.kt
 and copy the 
code below into the body of the 
update
 function:
var
 toDo = ToDo(values!!.getAsLong(KEY_TODO_ID),values!! 
                .getAsString(KEY_TODO_NAME), values!! 
                .getAsBoolean(KEY_TODO_IS_COMPLETED)) 
return
 db.update(toDo)
First, you create a ToDo item by extracting the values utilizing the key values defined 
in the contract. Then pass this toDo item to 
db
 to update the database.
Now open 
ToDoAdapter.kt
 and replace the 
TODO
 comment in the 
editToDo
 
function with the following:
// 1
 
var
 values = ContentValues() 
values.put(KEY_TODO_NAME,view.edtToDoName.text.toString()) 
values.put(KEY_TODO_ID, toDo.toDoId) 
values.put(KEY_TODO_IS_COMPLETED, toDo.isCompleted) 
// 2
 
context.contentResolver.update(Uri.parse(queryUri), values, 
selectionClause, 
    selectionArgs) 
// 3
 
notifyDataSetChanged()
1. Create and populate the content values object.
2. Run the update query to update the record.
3. Notify the adapter that the dataset has changed so the recyclerview will update.
Run the app and use the pencil icon to update an item that you added previously. 
The app can now display, insert and update items. But what about deleting them? 
You will add the ability to delete items in the next steps.