屬性列表

NSUserDefault
plist文件是將某些特定的類，通過(guò)XML文件的方式保存在目錄中

對(duì)象歸檔

@interface Person : NSObject <NSCoding> 
@property (nonatomic, strong) NSString *name;
@end

// 歸檔
- (void)encodeWithCoder:(NSCoder *)aCoder{
    [super encodeWithCoder:aCoder];
    [aCoder encodeObject:self.name forKey:@"name"];
}

// 解檔
- (id)initWithCoder:(NSCoder *)aDecoder{
    if (self =[super initWithCoder:aDecoder]) {
        self.name = [aDecoder decodeObjectForKey:@"name"];
    }
    return self;
}

SQLlite

Core Data

結(jié)構(gòu):

“應(yīng)用程序包”
Documents //iTunes同步
Library {
Caches
Preferences //iTunes同步
}
tmp

Document

存放重要數(shù)據(jù)

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

Library

NSArray libraryArr = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
NSString *library = libraryArr[0];

Caches

NSArray *cachesArr = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
NSString *caches = cachesArr[0];