vb.net print barcode labels Figure 7.10 Creating a split view based application in Objective-C

Generation QR Code 2d barcode in Objective-C Figure 7.10 Creating a split view based application

Figure 7.10 Creating a split view based application
QR Code JIS X 0510 Maker In Objective-C
Using Barcode drawer for iPhone Control to generate, create Denso QR Bar Code image in iPhone applications.
www.OnBarcode.com
Barcode Generator In Objective-C
Using Barcode generator for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
Download from Wow! eBook <www.wowebook.com>
GS1-128 Creation In Objective-C
Using Barcode printer for iPhone Control to generate, create GTIN - 128 image in iPhone applications.
www.OnBarcode.com
Making Data Matrix 2d Barcode In Objective-C
Using Barcode maker for iPhone Control to generate, create ECC200 image in iPhone applications.
www.OnBarcode.com
Creating advanced view controllers
Making Code 128 Code Set A In Objective-C
Using Barcode printer for iPhone Control to generate, create Code 128 Code Set C image in iPhone applications.
www.OnBarcode.com
Creating UPC A In Objective-C
Using Barcode maker for iPhone Control to generate, create UPC Code image in iPhone applications.
www.OnBarcode.com
The bookmarks application employing a split view
Draw Code 39 Extended In Objective-C
Using Barcode generation for iPhone Control to generate, create USS Code 39 image in iPhone applications.
www.OnBarcode.com
GS1 - 8 Maker In Objective-C
Using Barcode maker for iPhone Control to generate, create UPC - 8 image in iPhone applications.
www.OnBarcode.com
Figure 7.12 shows the various view elements you see when you click the SplitViewController. As you can see, the SplitViewController is made up of two main views. The navigation bar in the left view should hint that its view is a navigation controller. The object viewer in the bottom corner confirms this. Notice that the view hierarchy is exactly the same as that for the navigation controller in section 7.2. The right view is loaded from another nib called DetailView. Double-clicking the blue text labeled DetailView opens it and allows you to modify it as you would any other view. You ll see that later in the section when you add a web view to the example application.
Quick Response Code Decoder In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Encoding QR Code JIS X 0510 In None
Using Barcode encoder for Font Control to generate, create QR Code JIS X 0510 image in Font applications.
www.OnBarcode.com
Building the split view controller
Decode USS-128 In Visual C#
Using Barcode reader for VS .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Barcode Drawer In VS .NET
Using Barcode encoder for ASP.NET Control to generate, create Barcode image in ASP.NET applications.
www.OnBarcode.com
Now that you ve seen how the views are organized, it s time to review the code necessary for them to function. As mentioned earlier, the project will contain a sample data set that you ll modify to fit the application. The first steps are exactly the same as in section 7.2, when you created the navigation controller. You need to create an array of data, display it in the table view, and respond to actions when a row has been selected.
UCC.EAN - 128 Creator In Visual Studio .NET
Using Barcode encoder for Reporting Service Control to generate, create GS1 128 image in Reporting Service applications.
www.OnBarcode.com
GS1 - 12 Encoder In Java
Using Barcode creation for BIRT Control to generate, create GS1 - 12 image in BIRT applications.
www.OnBarcode.com
Download from Wow! eBook <www.wowebook.com>
Generate EAN / UCC - 13 In VS .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create UCC - 12 image in .NET applications.
www.OnBarcode.com
Generate USS Code 128 In Java
Using Barcode creator for Java Control to generate, create Code 128C image in Java applications.
www.OnBarcode.com
The split view controller
Encoding Barcode In Java
Using Barcode creator for Eclipse BIRT Control to generate, create Barcode image in Eclipse BIRT applications.
www.OnBarcode.com
Make GS1 - 13 In None
Using Barcode encoder for Font Control to generate, create EAN 13 image in Font applications.
www.OnBarcode.com
SplitViewController view elements in Interface Builder
QR Code JIS X 0510 Scanner In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Code128 Scanner In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
DECLARING THE DATA ARRAY
Open RootViewController.h, and modify the code to look like listing 7.5.
Listing 7.5 Declaring the dataset array for the SplitViewController
@class DetailViewController; @interface RootViewController : UITableViewController { DetailViewController *detailViewController; NSArray *bookmarks; } @property (nonatomic, retain) IBOutlet DetailViewController *detailViewController; @property (nonatomic, retain) NSArray *bookmarks; @end
Declares array of bookmarks
Creates property for class
You add B and C to declare the array of bookmarks to be displayed in the table. For this example, the user can t modify the bookmarks, so the array is declared as an NSArray rather than an NSMutableArray.
Download from Wow! eBook <www.wowebook.com>
Creating advanced view controllers
Now that you have your declaration, let s synthesize the property and populate the array with various bookmarks of your choice. Open RootViewController.m, and add the code in listing 7.6.
Listing 7.6 Populating the dataset for the SplitViewController
@synthesize bookmarks; - (void)viewDidLoad { [super viewDidLoad]; self.clearsSelectionOnViewWillAppear = NO; self.contentSizeForViewInPopover = CGSizeMake(320.0, 600.0); NSArray *_bookmarks = [[NSArray alloc] initWithObjects:@"http://manning.com", @"http://brandontreb.com", @"http://twitter.com", @"http://google.com",nil]; self.bookmarks = _bookmarks; [_bookmarks release]; }
Initializes array with URLs
You ve seen the first line earlier in the book: it synthesizes the bookmarks property, allowing getter and setter methods to be automatically created for it. You initialize the bookmarks array with strings B, which are the URLs to be loaded when a given cell is selected. This declaration is similar to the first method implemented in listing 7.2. Now that your data has been initialized, you need to implement the delegate methods of the UITableViewController in the left pane of your SplitView.
TABLEVIEW DELEGATE METHODS
Because the left pane is a UITableViewController, you ll implement the same methods to interact with it that you did in listing 7.2. Listing 7.7 details the methods for displaying your array of bookmarks instead of the default data.
Listing 7.7
UITableViewDelegate methods for displaying bookmark data
- (NSInteger)numberOfSectionsInTableView:(UITableView *)aTableView { return 1; Sets number of }
table sections
- (NSInteger)tableView:(UITableView *)aTableView numberOfRowsInSection:(NSInteger)section { return [bookmarks count]; } (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"CellIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc]
Sets number of rows equal to number of bookmarks
Download from Wow! eBook <www.wowebook.com>
The split view controller
initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; cell.accessoryType = UITableViewCellAccessoryNone; } cell.textLabel.text = [self.bookmarks objectAtIndex:indexPath.row]; return cell; Sets text of cell }
to bookmark
You first set the number of sections for the UITableView to 1 because your dataset doesn t have any groupings B. Next, you return the number of bookmarks in the array C. As you ve seen before, this denotes the number of cells to be displayed in the UITableView. Finally, you set the text of the cell to the URL string of the bookmark D. At this point, the application has enough code to display the bookmarks; running it in the simulator looks like figure 7.13. When you select a row in the table, the label updates with text that says something like Row X , where X is the row number selected. Next, we ll show you how to modify this view to do something a little more interesting. You ll add a UIWebView to the DetailView and display the page of the selected URL inside it.
Copyright © OnBarcode.com . All rights reserved.