ACM_Someone like you

#import <UIKit/UIKit.h>

@interface HFMusicModel : NSObject<NSCoding> //遵守 NSCoding 協(xié)議

@property (nonatomic, strong) NSString * img_url;
@property (nonatomic, strong) NSString * amount;
@property (nonatomic, strong) NSString * time;
@property (nonatomic, strong) NSString * title;
@property (nonatomic, strong) NSString * url;
@property (nonatomic, strong) NSString * method_id;


@end
#import "HFMusicModel.h"

@implementation HFMusicModel

/**
 *  必須要實現的兩個方法 解碼 和 編碼
 */

//將屬性進行編碼 "保存 歸檔"

- (void)encodeWithCoder:(NSCoder *)aCoder {
    [aCoder encodeObject:self.img_url forKey:@"img_url"];
    [aCoder encodeObject:self.amount forKey:@"amount"];
    [aCoder encodeObject:self.time forKey:@"time"];
    [aCoder encodeObject:self.title forKey:@"title"];
    [aCoder encodeObject:self.url forKey:@"url"];
    [aCoder encodeObject:self.method_id forKey:@"method_id"];
}

//將屬性進行解碼 "加載 讀取 解檔"

- (id)initWithCoder:(NSCoder *)aDecoder //該方法也是一種 初始化
{
    self = [super init];
    if (self) {//注意不產生死循環(huán)
        self.url = [aDecoder decodeObjectForKey:@"img_url"];
        self.amount = [aDecoder decodeObjectForKey:@"amount"];
        self.time = [aDecoder decodeObjectForKey:@"time"];
        self.title = [aDecoder decodeObjectForKey:@"title"];
        self.url = [aDecoder decodeObjectForKey:@"url"];
        self.method_id = [aDecoder decodeObjectForKey:@"method_id"];
    }
    return self;
}

    HFMusicModel *musicModel = [[HFMusicModel alloc]init];
    musicModel.img_url = @"http://h.hiphotos.baidu.com/baike/pic/item/a686c9177f3e67092e15a66d3bc79f3df8dc550f.jpg";
    musicModel.amount = @"1024";
    musicModel.time = @"60";
    musicModel.title = @"我是歌曲名稱";
    musicModel.method_id = @"0";
    
    
    //數據寫入文件
    NSString *bundlePath = [[NSBundle mainBundle] bundlePath];
    NSString *path = [[NSString alloc] initWithFormat:@"%@%@",bundlePath,@"/musiclist.plist"];
    
    BOOL isSaved = [NSKeyedArchiver archiveRootObject:musicModel toFile:path];
    NSLog(@"%@",[NSNumber numberWithBool:isSaved]);
    
    //讀文件數據
    HFMusicModel *tempMusicModel;
    tempMusicModel = [NSKeyedUnarchiver unarchiveObjectWithFile:path];
    
    NSLog(@"%@\n%@\n%@\n%@",tempMusicModel.title,tempMusicModel.amount,tempMusicModel.img_url,tempMusicModel.time);

[[NSUserDefaults standardUserDefaults] setObject:[NSKeyedArchiver archivedDataWithRootObject:tempMusicModel] forKey:@"musicList"];
    tempMusicModel = nil;
    tempMusicModel =  [NSKeyedUnarchiver unarchiveObjectWithData:[[NSUserDefaults standardUserDefaults]objectForKey:@"musicList"]];
    NSLog(@"%@\n%@\n%@\n%@",tempMusicModel.title,tempMusicModel.amount,tempMusicModel.img_url,tempMusicModel.time);