Formacion en movilidad: Conceptos de desarrollo en iOS (IV)

Televisió de Catalunya
Formación en movilidad
Conceptos de desarrollo en iOS
4ª sesión mayo 2013
1

Qué veremos hoy
Alert
Search Bar
Action Sheet
Activity
Customizing
Testing
2

Alert
UIAlertView
“Use the UIAlertView class to display an alert
message to the user”
3

Alert
UIAlertView
// MasterViewController.m
- (void)insertNewObject:(NSDictionary *)values
{
// ...
if (![context save:&error])
{
// ...
}
else
{
UIAlertView *notice = [[UIAlertView alloc]
initWithTitle:@"Nuevo vídeo"
message:@"Se a creado un nuevo vídeo correctamente"
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil, nil];
[notice show];
}
4

Alert
UIAlertView
{
// ...
{
// ...
}
else
{
delegate:nil
otherButtonTitles:nil, nil];
[notice show];
}
5

Alert
UIAlertView
{
// ...
{
// ...
}
else
{
delegate:nil
otherButtonTitles:@"Deshacer", nil];
[notice show];
}
6

Alert
UIAlertView
{
// ...
{
// ...
}
else
{
delegate:nil
otherButtonTitles:@"Deshacer", nil];
[notice show];
}
7

“The UISearchBar object does not actually
perform any searches.You use the
UISearchBarDelegate protocol to implement
the actions when text is entered and buttons
are clicked”
Search Bar
8

Search Bar
UISearchBar
Placeholder ‘Buscar por título o autor’
Marcar ‘Shows Cancel Button’
Seleccionar ‘Correction: No’
Conectar ‘Search Bar’ delegate con ‘MasterView Controller’
10

Search Bar
UISearchBarDelegate
@interface MasterViewController ()
- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath;
- (void)performSearch:(NSString *)searchText;
@end
11

Search Bar
UISearchBarDelegate
@end
Declarar método privado performSearch:
12

Search Bar
UISearchBarDelegate
@end
- (NSFetchedResultsController *)fetchedResultsController {
// ...
NSFetchedResultsController *aFetchedResultsController =
[[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest
managedObjectContext:self.managedObjectContext
sectionNameKeyPath:nil
cacheName:nil];
// ...
}
13

Search Bar
UISearchBarDelegate
@end
- (NSFetchedResultsController *)fetchedResultsController {
// ...
NSFetchedResultsController *aFetchedResultsController =
[[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest
managedObjectContext:self.managedObjectContext
sectionNameKeyPath:nil
cacheName:nil];
// ...
}
Anular uso de caché en initWithFetchRequest:
14

Search Bar
UISearchBarDelegate
#pragma mark - UISearchBarDelegate
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
}
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText {
}
Acciones para
botones ‘Search’ y ‘Cancel’ e introducción de texto
15

Search Bar
UISearchBarDelegate
[self performSearch:searchBar.text];
[searchBar resignFirstResponder];
[self.tableView reloadData];
}
}
}
searchBarSearchButtonClicked:
16

Search Bar
UISearchBarDelegate
}
}
}
searchBarCancelButtonClicked:
17

Search Bar
UISearchBarDelegate
}
}
[self performSearch:searchText];
}
searchBar:textDidChange:
18

Search Bar
UISearchBarDelegate + Core Data
#pragma mark - Private
- (void)performSearch:(NSString *)searchText {
NSPredicate *predicate;
NSError *error = nil;
if(searchText && searchText.length > 0) {
predicate = [NSPredicate predicateWithFormat:
@"title contains[cd] %@ or author contains[cd] %@", searchText, searchText];
[self.fetchedResultsController.fetchRequest setPredicate:predicate];
} else {
[self.fetchedResultsController.fetchRequest setPredicate:nil];
}
if(![self.fetchedResultsController performFetch:&error]) {
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
}
Implementar método privado performSearch:
19

Search Bar
} else {
}
abort();
}
}
contains[cd] is case and diacritic insensitive
20

Search Bar
} else {
}
abort();
}
}
Anular criterios = Buscar todos
21

Search Bar
UISearchBarDelegate
22

“Use the UIActionSheet class to present the
user with a set of alternatives for how to
proceed with a given task”
Action Sheet
23

Action Sheet
Seleccionar ‘Identiﬁer:Action’
25

Action Sheet
Seleccionar ‘Identiﬁer:Action’
Conectar ‘Bar Button Item - Action’ con DetailView Controller
Connection:Action
Name: shareByEmail
Type: id
26

Action Sheet
TARGETS : MyVideos : Build Phases : Link With Binary Libraries
MessageUI.framework
27

Action Sheet
UIActionSheet
// DetailViewController.h
#import <UIKit/UIKit.h>
#import <MessageUI/MessageUI.h>
#import <MessageUI/MFMailComposeViewController.h>
@interface DetailViewController : UIViewController <
UISplitViewControllerDelegate, UIWebViewDelegate,
UIActionSheetDelegate, MFMailComposeViewControllerDelegate>
// ...
@end
Importar MessageUI.h y MFMailComposeViewController.h
28

Action Sheet
UIActionSheet
// ...
@end
UIActionSheetDelegate
29

// ...
@end
Action Sheet
UIActionSheet
MFMailComposeViewControllerDelegate
30

Action Sheet
UIActionSheet
// DetailViewController.m
- (IBAction)shareByEmail:(id)sender {
UIActionSheet *actionSheet = [[UIActionSheet alloc]
initWithTitle:@"Compartir"
delegate:self
cancelButtonTitle:@"Cancelar"
destructiveButtonTitle:nil
otherButtonTitles:@"Email", nil];
[actionSheet showInView:self.view];
}
initWithTitle:
31

Action Sheet
UIActionSheet
showInView:
UIActionSheet *actionSheet = [[UIActionSheet alloc]
initWithTitle:@"Compartir"
delegate:self
cancelButtonTitle:@"Cancelar"
destructiveButtonTitle:nil
otherButtonTitles:@"Email", nil];
[actionSheet showInView:self.view];
}
32

Action Sheet
#pragma mark - UIActionSheetDelegate
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
}
@end
Implementar actionSheet:clickedButtonAtIndex:
33

Action Sheet
if(buttonIndex == 0 && [MFMailComposeViewController canSendMail]) {
NSString *subject = @"Mira este vídeo!";
NSArray *recipients = @[ @"sergi.hernando@mobivery.com" ];
NSString *url = self.webView.request.URL.absoluteString;
NSString *body = [NSString stringWithFormat:@"Échale un ojo: %@", url];
}
}
@end
Parámetros del email
34

Action Sheet
MFMailComposeViewController *mailComposer = [[MFMailComposeViewController alloc] init];
}
}
@end
Instanciar mail compose view controller
35

Action Sheet
[mailComposer setSubject:subject];
[mailComposer setToRecipients:recipients];
[mailComposer setMessageBody:body isHTML:YES];
[mailComposer setMailComposeDelegate:self];
}
}
@end
Asignar parámetros a mail compose view controller
36

Action Sheet
[mailComposer setSubject:subject];
[mailComposer setToRecipients:recipients];
[mailComposer setMessageBody:body isHTML:YES];
[mailComposer setMailComposeDelegate:self];
[self presentViewController:mailComposer animated:YES completion:nil];
}
}
@end
Mostrar mail compose view controller
37

Action Sheet
Implementar mailComposeController:didFinishWithResult:error:
#pragma mark - MFMailComposeViewControllerDelegate
- (void)mailComposeController:(MFMailComposeViewController *)controller
didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
}
38

Action Sheet
Cerrar mail compose view controller
* [mailComposer setMailComposeDelegate:self];
#pragma mark - MFMailComposeViewControllerDelegate
- (void)mailComposeController:(MFMailComposeViewController *)controller
didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
! [self dismissViewControllerAnimated:YES completion:nil];
}
39

Activity
UIActivityViewController
}
40

Activity
NSString *body = [NSString stringWithFormat:@"Échale un ojo a este vídeo: %@", url];
}
41

Activity
UIActivityViewController *activity;
activity = [[UIActivityViewController alloc]
initWithActivityItems:@[body] applicationActivities:nil];
}
42

Activity
activity.excludedActivityTypes =
@[UIActivityTypeMessage, UIActivityTypeMail, UIActivityTypePostToWeibo];
}
43

Activity
activity.excludedActivityTypes =
@[UIActivityTypeMessage, UIActivityTypeMail, UIActivityTypePostToWeibo];
[self presentViewController:activity animated:YES completion:nil];
}
44

Customizing
UIAppearance
// AppDelegate.m
- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// ...
return YES;
}
application:didFinishLaunchingWithOptions:
46

Customizing
UIAppearance
// AppDelegate.m
// ...
[[UINavigationBar appearance] setTintColor:[UIColor blackColor]];
return YES;
}
UINavigationBar
47

Customizing
UIAppearance
// AppDelegate.m
// ...
[[UIBarButtonItem appearance] setTintColor:[UIColor blackColor]];
return YES;
}
UIBarButtonItem
48

Customizing
UIAppearance
// AppDelegate.m
// ...
[[UIBarButtonItem appearance] setTintColor:[UIColor blackColor]];
[[UISearchBar appearance] setTintColor:[UIColor blackColor]];
return YES;
}
UISearchBar
49

Customizing
→
+
Bar Button Item
+
Round Rect Button
50

Customizing
+
Type: Custom
Title: vacío
Image: comun-back-button.png
51

Customizing
// VideoCell.h
@interface VideoCell : UITableViewCell
@property (nonatomic, strong) IBOutlet UILabel *titleLabel;
@property (nonatomic, strong) IBOutlet UILabel *authorLabel;
@end
55

Customizing
TableView Cell - Style: Custom
Custom Class - Class:VideoCell
56

Customizing
Conectar labels con titleLabel y authorLabel
58

Customizing
#import "VideoCell.h"
// ...
- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath
{
NSManagedObject *object = [self.fetchedResultsController objectAtIndexPath:indexPath];
cell.textLabel.text = [object valueForKey:@"title"];
}
59

Customizing
#import "VideoCell.h"
// ...
- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath
{
NSManagedObject *object = [self.fetchedResultsController objectAtIndexPath:indexPath];
if([cell isKindOfClass:[VideoCell class]]) {
VideoCell *videoCell = (VideoCell *)cell;
videoCell.titleLabel.text = [object valueForKey:@"title"];
videoCell.authorLabel.text = [object valueForKey:@"author"];
} else {
cell.textLabel.text = [object valueForKey:@"title"];
}
}
60

Testing
OCUnit
validate:
“Devuelve ‘cierto’ si título, autor y URL están
informados
y URL tiene el formato correcto.
Devuelve ‘falso’ en caso contrario.”
62

Testing
OCUnit
// MyVideosTests.m
- (void)testValidateMandatoryFields {
}
63

Testing
OCUnit
// MyVideosTests.m
MasterViewController *viewController = [MasterViewController new];
NSDictionary *values = @{
@"title": @"Murmuration",
@"author": @"Islands & Rivers",
@"url": @"http://vimeo.com/m/31158841"
};
}
64

Testing
OCUnit
// MyVideosTests.m
};
BOOL result = [viewController validate:values];
}
65

Testing
OCUnit
// MyVideosTests.m
};
!
STAssertTrue(result, @"validate: returned false");
}
66

Testing
OCUnit
// MyVideosTests.m
};
!
}
“result” should be true. validate: returned false
67

Testing
OCUnit
// MyVideosTests.m
};
!
}
- (BOOL)validate:(NSDictionary *)values {
! return NO;
}
“result” should be true. validate: returned false
68

Testing
OCUnit
// MyVideosTests.m
};
!
}
return([values objectForKey:@"title"]
&& [values objectForKey:@"author"]
&& [values objectForKey:@"url"]);
}
69

Testing
OCUnit
// MyVideosTests.m
};
!
}
&& [values objectForKey:@"url"]);
}
Test Case ‘-[MyVideosTests testValidateMandatoryFields]’ passed
70

Testing
OCUnit
// MyVideosTests.m
- (void)testValidatetMalformedURL {
@"url": @"not an url"
};
!
STAssertFalse(result, @"validate: returned true");
}
71

Testing
OCUnit
// MyVideosTests.m
};
!
}
“result” should be false. validate: returned true
72

Testing
OCUnit
// MyVideosTests.m
};
!
}
&& [values objectForKey:@"url"]
&& [NSURL URLWithString:[values objectForKey:@"url"]]);
}
73

Testing
OCUnit
// MyVideosTests.m
};
!
}
&& [values objectForKey:@"url"]
&& [NSURL URLWithString:[values objectForKey:@"url"]]);
}
Test Case ‘-[MyVideosTests testValidateMalformedURL]’ passed
74

Formacion en movilidad: Conceptos de desarrollo en iOS (IV)

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