UIViewControllerのコーナーケース

iPhone SDK

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iPhone SDK

• touch •MyWebClip
•LDR touch •
• • on the WEB
•LCD Clock •i-Radio
•Subway Map •

iPhone SDK

http://github.com/kishikawakatsumi

•hatena-touch •DescriptionBuilder
•ldr-touch •TiledLayerView
•tv-listings •UICCalendarPicker
•MapKit-Route-Directions
•FlipCardNavigationView
•PhotoFlipCardView

iPhone SDK

UIViewController

iPhone SDK

•iOS View Controller
•Cocoa

iPhone SDK

Interface Builder

iPhone SDK
#import <UIKit/UIKit.h>
#import "MyLabel.h"
#import "MyButton.h"

@interface SecondViewController : UIViewController {
MyLabel *label;
MyButton *button;
}

@property (nonatomic, retain) IBOutlet MyLabel *label;
@property (nonatomic, retain) IBOutlet MyButto *button;

- (IBAction)buttonPushed:(id)sender;

@end

iPhone SDK
@synthesize label;
@synthesize button;

- (void)dealloc {
self.label = nil;
self.button = nil;
[super dealloc];
}

iPhone SDK
#import "MyLabel.h"

IBOutlet MyLabel *label;
IBOutlet MyButton *button;
}

- (IBAction)buttonPushed:(id)sender;

@end

iPhone SDK
- (void)dealloc {
[label release];
[button release];
[super dealloc];
}

iPhone SDK

•
setter
setter
•setter
retain

iPhone SDK
#import "MyLabel.h"

MyLabel *label;
MyButton *button;
}

- (void)buttonPushed:(id)sender;

@end

iPhone SDK
- (void)dealloc {
[super dealloc];
}

iPhone SDK
#import "MyLabel.h"

MyLabel *label;
MyButton *button;
}

@property (nonatomic, retain) MyLabel *label;
@property (nonatomic, retain) MyButton *button;

- (void)buttonPushed:(id)sender;

@end

iPhone SDK
- (void)dealloc {
self.label = nil;
self.button = nil;
[super dealloc];
}

iPhone SDK

self.propertyName = nil;
OK

iPhone SDK
- (void)dealloc {
[label release]; label = nil;
[button release]; button = nil;
[super dealloc];
}

iPhone SDK
@interface SecondViewController() {
MyLabel *label;
MyButton *button;
}

@property (nonatomic, retain) MyLabel *label;
@property (nonatomic, retain) MyButto *button;
@end

@implementation SecondViewController
...

iPhone SDK

nib nib
(Mac OS X iPhone )

Objective-C

@property (attributes) IBOutlet UserInterfaceElementClass *anOutlet;

Cocoa

iPhone SDK
( Mac OS X (44
) iPhone (45 ) )
■

Mac OS X
@property (assign) IBOutlet UserInterfaceElementClass *anOutlet;
■

iPhone OS X
@property (nonatomic, retain) Outlet UIUserInterfaceElementClass *anOutlet;

(iPhone OS )dealloc

Cocoa

iPhone SDK
nib 1
UIKit setValue:forKey:
setter
setter
( (43 )
)

loadNibNamed:owner:options:

Cocoa

iPhone SDK
View Controller (didReceiveMemoryWarning)

1 View Controller
(didReceiveMemoryWarning UIViewController
[self setView:nil] )
nib ( (43
) )

didReceiveMemoryWarning

Cocoa

iPhone SDK
View Controller
setView:
- (void)setView:(UIView *)aView {
if (!aView) { // nil
// nil
self.anOutlet = nil;
}
//
[super setView:aView];
}
UIViewController (
)setView: dealloc
dealloc self.anOutlet = nil
View Controller dealloc

Cocoa

iPhone SDK
- (void)viewDidUnload {

self.anOutlet = nil;

[super viewDidUnload];

}

Cocoa

+ (void)initialize {
sectionIndexTitles =

iPhone SDK
[[NSArray arrayWithObjects:@"1-10", @"11-100", @"101-400", nil] retain];
}

- (id)init {
if (self = [super init]) {
self.pageURL = @"http://www.yahoo.co.jp";

operationQueue = [[NSOperationQueue alloc] init];
[operationQueue setMaxConcurrentOperationCount:1];

[NSFetchedResultsController deleteCacheWithName:nil];
}
return self;
}

- (void)dealloc {
[[NSNotificationCenter defaultCenter] removeObserver:self];
self.pageURL = nil;
[operationQueue release];
[super dealloc];
}

- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}

- (void)viewDidUnload {
[super viewDidUnload];
[[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)loadView {
UIView *contentView =
[[UIView alloc] initWithFrame:
iPhone SDK
CGRectMake(0.0f, 0.0f, 320.0f, 367.0f)];
contentView.backgroundColor = [UIColor blackColor];
self.view = contentView;
[contentView release];

UIImageView *background =
[[UIImageView alloc] initWithImage:[UIImage
imageNamed:@"search_bg.png"]];
[contentView addSubview:background];
[background release];

searchBar = [[UISearchBar alloc] initWithFrame:
CGRectMake(0.0f, 0.0f, 320.0f, 44.0f)];
searchBar.delegate = self;
searchBar.showsScopeBar = YES;
[[searchBar.subviews objectAtIndex:0]
performSelector:@selector(setBackgroundImage:)
withObject:[UIImage imageNamed:@"searchbar_bg.png"]];
[contentView addSubview:searchBar];
[searchBar release];
}

- (void)viewDidLoad {

iPhone SDK
[super viewDidLoad];
self.title = NSLocalizedString(@"AppName", nil);

UIBarButtonItem *backBarButtonItem =
[[UIBarButtonItem alloc] initWithImage:
[UIImage imageNamed:@"arrow_left_small.png"]
style:UIBarButtonItemStyleBordered
target:nil
action:nil];
[self.navigationItem setBackBarButtonItem:backBarButtonItem];
[backBarButtonItem release];

if (&UIApplicationDidEnterBackgroundNotification) {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:
@selector(applicationDidEnterBackground:)
name:
UIApplicationDidEnterBackgroundNotification object:nil];
}
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector
(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector
(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
}

iPhone SDK
init

loadView
viewWillAppear:
animated:
viewDidLoad
viewDidAppear:
animated:

viewWillDisappe
ar:animated:
didReceiveMem
oryWarning viewDidDisappe
ar:animated:
viewDidUnload

dealloc

iPhone SDK
initWithNibName:

viewDidLoad
viewWillAppear:
animated:

viewDidAppear:
animated:

viewWillDisappe
ar:animated:
didReceiveMem
oryWarning viewDidDisappe
ar:animated:
viewDidUnload

dealloc

iPhone SDK

self.managedObjectContext =
[[[UIApplication sharedApplication] delegate]
managedObjectContext];
self.store =
[[[UIApplication sharedApplication] delegate] store];

self.searchController =
[[[UISearchDisplayController alloc] initWithSearchBar:searchBar
contentsController:self]
autorelease];
searchController.delegate = self;
searchController.searchResultsDelegate = self;
searchController.searchResultsDataSource = self;
searchController.searchResultsTableView.hidden = YES;
}

iPhone SDK
[initWithNibName:bundle:];
[viewDidLoad];

[viewWillAppear:];
[viewDidAppear:];
[viewWillDisappear:];
[viewDidDisappear:];

[viewWillAppear:];
[viewDidAppear:];

[dealloc];

iPhone SDK

[init];
[loadView];
[viewDidLoad];

[viewWillAppear:];
[viewDidAppear:];

[didReceiveMemoryWarning];

[init];
iPhone SDK
[loadView];
[viewDidLoad];

[viewWillAppear:];
[viewDidAppear:];

[viewDidUnload];

[loadView];
[viewDidLoad];

[viewWillAppear:];
[viewDidAppear:];

iPhone SDK
[init];
[loadView];
[viewDidLoad];

[viewWillAppear:];
[viewDidAppear:];

[viewDidUnload];

[loadView];
[viewDidLoad];

[viewWillAppear:];
[viewDidAppear:];

iPhone SDK
[init];
[loadView];
[viewDidLoad];

[viewWillAppear:];
[viewDidAppear:];

[viewDidUnload];

[dealloc];

iPhone SDK

[init];
[loadView];
[viewDidLoad];

[viewWillAppear:];
[viewDidAppear:];

[viewDidUnload];

[dealloc];

iPhone SDK

CornerCase:
viewXXXAppear:

iPhone SDK

[init];
[loadView];
[viewDidLoad];

[dealloc];

iPhone SDK
[view addSubview:viewController.view];

[init];
[loadView];
[viewDidLoad];

[dealloc];

iPhone SDK

UINavigationConroller
[pushViewController:animated:];
[popViewControllerAnimated:];
[popToViewController:animated:];

UITabBarController
[setSelectedIndex:];

UIViewConroller
[presentModalViewController:animated:];
dismissModalViewControllerAnimated:];

UIPopoverConroller

iPhone SDK
- (void)pushViewController:(UIViewController *)viewController
animated:(BOOL)animated {
UIView *contentView = viewController.view;

if (animated) {
[UIView beginAnimations:nil context:NULL];
...
}

[viewController viewWillAppear:animated];

[self.view addSubview:contentView];

[viewController viewDidAppear:animated];

...
}

iPhone SDK

CornerCase:
popViewControllerAnimated:

iPhone SDK

CornerCase:
UIWebView

iPhone SDK

UITextView
UIControl
UITextField, UISwitch

iPhone SDK

CornerCase:
iPhone 4 iPhone 3GS

iPhone SDK
- (void)diaryUploader:(DiaryUploader *)uploader uploadFailed:(NSError *)
error {
if (error) {
alert = [[UIAlertView alloc]
initWithTitle:NSLocalizedString(@"AppName", nil)
message:
[NSString stringWithFormat:@"%@",
[error localizedDescription]]
delegate:self
cancelButtonTitle:nil
otherButtonTitles:NSLocalizedString(@"OK", nil), nil];
[alert show];
[alert release];
}
}

iPhone SDK

if (&UIApplicationDidEnterBackgroundNotification) {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:
@selector(applicationDidEnterBackground:)
name:
UIApplicationDidEnterBackgroundNotification object:nil];
}
}

- (void)alertView:(UIAlertView *)alertView
iPhone SDK
didDismissWithButtonIndex:(NSInteger)buttonIndex {
alert = nil;
}

- (void)applicationDidEnterBackground:
(NSNotification *)note {
[alert dismissWithClickedButtonIndex:0
animated:NO];
alert = nil;

if (self.modalViewController) {
[self.modalViewController
dismissModalViewControllerAnimated:NO];
}
}

UIViewControllerのコーナーケース

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