Graphics Programs Reference
In-Depth Information
Finally, click on the cell in the outline view and select the identity inspector. Change the
Exposing the properties of HomepwnerItemCell
This cell looks nice, and it is almost ready to use in
Homepwner
, but there is one problem.
When an instance of
HomepwnerItemCell
is created in
tableView:cellForRowAtIndexPath:
, you will need to set the
text
of each of
these labels and the
image
of the
UIImageView
. (A cell that you can't configure
would be pretty useless.) Thus,
HomepwnerItemCell
needs properties to access each
of the subviews that makes up its interface.
The next step, then, is to create and connect outlets on
HomepwnerItemCell
for each
of its subviews. You will use the same technique you have been using the last few
chapters of Control-dragging into the source file to create the outlets. However, there will
be a small difference for
HomepwnerItemCell
's outlets: they will be properties in-
stead of simply instance variables.
In
DetailViewController
, none of the outlets to the
UITextField
s were ex-
posed as properties because no other object was supposed to have access to them. In this
case, the table view's data source must configure each subview. By exposing the subviews
as properties, the data source (
ItemsViewController
) will have the access it needs
to do this.
Option-click on
HomepwnerItemCell.h
while
HomepwnerItemCell.xib
is
open. Control-drag from each subview to the method declaration area in
Homepwner-
ItemCell.h
. (If there is an instance variable area defined in your file, you want to drag
to the area after the closing bracket.) Name each outlet and configure the other attributes
of the connection, as shown in
Figure 15.7
.
(Pay attention to the
Connection
,
Storage
, and
Object
fields.)
Figure 15.7 HomepwnerItemCell connections
