iphone Archiving 을 이용한 저장로딩

//

//  SampleDay6_1ViewController.m

//  SampleDay6-1

//

//  Created by bit on 11. 5. 23..

//  Copyright 2011 __MyCompanyName__. All rights reserved.

//

#import "SampleDay6_1ViewController.h"

#import "FourLines.h"

@implementation SampleDay6_1ViewController

/*

// The designated initializer. Override to perform setup that is required before the view is loaded.

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {

    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

    if (self) {

        // Custom initialization

    }

    return self;

}

*/

/*

// Implement loadView to create a view hierarchy programmatically, without using a nib.

- (void)loadView {

}

*/

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.

- (void)viewDidLoad {

    [super viewDidLoad];

NSString *filePath = [self dataFilePath];

if( [[NSFileManager defaultManager] fileExistsAtPath:filePath]){

// NSArray *array = [[NSArray alloc] initWithContentsOfFile:filePath];

// field1.text = [array objectAtIndex:0];

// field2.text = [array objectAtIndex:1];

// field3.text = [array objectAtIndex:2];

// field4.text = [array objectAtIndex:3];

//

// [array release];

FourLines *fourLines = [NSKeyedUnarchiver unarchiveObjectWithFile:[self dataFilePath]];

field1.text = fourLines.field1;

field2.text = fourLines.field2;

field3.text = fourLines.field3;

field4.text = fourLines.field4;

}

UIApplication *app = [UIApplication sharedApplication];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationWillResignActive:) name:UIApplicationWillResignActiveNotification object:app];

}

/*

// Override to allow orientations other than the default portrait orientation.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    // Return YES for supported orientations

    return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

*/

- (void)didReceiveMemoryWarning {

// Releases the view if it doesn't have a superview.

    [super didReceiveMemoryWarning];

// Release any cached data, images, etc that aren't in use.

}

- (void)viewDidUnload {

// Release any retained subviews of the main view.

// e.g. self.myOutlet = nil;

[field1 release];

field1 = nil;

[field2 release];

field2 = nil;

[field3 release];

field3 = nil;

[field4 release];

field4 = nil;

}

- (void)dealloc {

    [super dealloc];

}

-(NSString *)dataFilePath {

NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentsDirectory = [ paths objectAtIndex:0];

return [documentsDirectory stringByAppendingPathComponent:@"file.arc"];

}

-(void)applicationWillResignActive:(NSNotification *)notification

{

// NSMutableArray *array = [[NSMutableArray alloc] init];

//

// [array addObject:field1.text];

// [array addObject:field2.text];

// [array addObject:field3.text];

// [array addObject:field4.text];

// [array writeToFile:[self dataFilePath] atomically:YES];

// [array release];

FourLines *fourLines = [[FourLines alloc] init];

fourLines.field1 = field1.text;

fourLines.field2 = field2.text;

fourLines.field3 = field3.text;

fourLines.field4 = field4.text;

[NSKeyedArchiver archiveRootObject:fourLines toFile:[self dataFilePath]];

}

@end

//

//  FourLines.h

//  SampleDay6-1

//

//  Created by bit on 11. 5. 23..

//  Copyright 2011 __MyCompanyName__. All rights reserved.

//

#import

#define kField1Key @"key1"

#define kField2Key @"key2"

#define kField3Key @"key3"

#define kField4Key @"key4"

@interface FourLines : NSObject {

NSString *field1;

NSString *field2;

NSString *field3;

NSString *field4;

}

@property (nonatomic, retain) NSString *field1;

@property (nonatomic, retain) NSString *field2;

@property (nonatomic, retain) NSString *field3;

@property (nonatomic, retain) NSString *field4;

-(void)encodeWithCoder:(NSCoder *)encoder;

-(id)initWithCoder:(NSCoder *)decoder;

@end

//

//  FourLines.m

//  SampleDay6-1

//

//  Created by bit on 11. 5. 23..

//  Copyright 2011 __MyCompanyName__. All rights reserved.

//

#import "FourLines.h"

@implementation FourLines

@synthesize field1;

@synthesize field2;

@synthesize field3;

@synthesize field4;

- (void) dealloc

{

self.field1 = nil;

self.field2 = nil;

self.field3 = nil;

self.field4 = nil;

[super dealloc];

}

-(void)encodeWithCoder:(NSCoder *)encoder {

[encoder encodeObject:field1 forKey:kField1Key];

[encoder encodeObject:field2 forKey:kField2Key];

[encoder encodeObject:field3 forKey:kField3Key];

[encoder encodeObject:field4 forKey:kField4Key];

}

-(id)initWithCoder:(NSCoder *)decoder {

if( self = [super init] ) {

field1 = [[decoder decodeObjectForKey:kField1Key] retain];

field2 = [[decoder decodeObjectForKey:kField2Key] retain];

field3 = [[decoder decodeObjectForKey:kField3Key] retain];

field4 = [[decoder decodeObjectForKey:kField4Key] retain];

}

return self;

}

@end