歸檔這種存儲(chǔ)方式,比較輕量和高效的. 之前不怎么使用,現(xiàn)在用起來(lái)了,幾個(gè)筆記也好! 以下是隨手寫(xiě)的一個(gè)示例Demo ,依賴(lài)于YYModel ,自己不想用第三方庫(kù),那就要一個(gè)個(gè)的寫(xiě)編碼解碼,或者使用runtime鍵值映射稍微簡(jiǎn)單點(diǎn)兒,我這里不重復(fù)造輪子了.

#import <Foundation/Foundation.h>
#import "YYModel.h"

@interface Person : NSObject<NSCoding, NSCopying>

@property (nonatomic,copy) NSString *name;

@property (nonatomic,copy) NSString *age;

@end



#import "Person.h"

@implementation Person

//重寫(xiě)以下幾個(gè)方法 
- (void)encodeWithCoder:(NSCoder*)aCoder {
    [self yy_modelEncodeWithCoder:aCoder];
}

- (id)initWithCoder:(NSCoder*)aDecoder
{
    self = [super init];
    return [self yy_modelInitWithCoder:aDecoder];
}

- (id)copyWithZone:(NSZone*)zone {
    return [self yy_modelCopy];
}

- (NSUInteger)hash {
    return [self yy_modelHash];
}

- (BOOL)isEqual:(id)object {
    return [self yy_modelIsEqual:object];
}

@end


#import <UIKit/UIKit.h>

@interface ViewController : UIViewController


@end



#import "ViewController.h"
#import "Person.h"

#define KDocumentPath [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES) lastObject]

#define kPersonInfoPath [KDocumentPath stringByAppendingPathComponent:@"personInfo.archiver"]


@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

//先存檔  然后屏蔽這段代碼  看看是否歸檔到了本地
//    NSMutableArray *dataArray =[NSMutableArray array];
//
//    for (NSInteger i = 10; i < 20 ; i++) {
//        Person * p =[Person new];
//        p.name = [NSString stringWithFormat:@"name==-%ld",i];
//        p.age = [NSString stringWithFormat:@"+++%ld歲",i];
//        [dataArray addObject:p];
//    }
//
//    BOOL ret =  [NSKeyedArchiver archiveRootObject:dataArray toFile:kPersonInfoPath];
//
//    if (ret) {
//        NSLog(@"歸檔成功");
//    }else{
//        NSLog(@"歸檔失敗");
//    }

    NSArray *arr =[NSKeyedUnarchiver unarchiveObjectWithFile:kPersonInfoPath];
    for (Person *p in arr) {
        NSLog(@"名字%@,年齡%@", p.name,p.age);
    }

}

@end