//获取目录(两种方法)
NSString *directory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask , YES) lastObject];
NSLog(@"%@",directory);
//第二种方法
// NSString *homeDir = NSHomeDirectory();
// NSString *dir2 = [homeDir stringByAppendingPathComponent:@"Document"];
NSArray *arry = @[@"xxx",@123];
NSDictionary *dictionary = @{@"keyOne":@"string",@"keyTwo":@111111 };
NSString *filePath1 = [directory stringByAppendingPathComponent:@"arrar.plist"];
NSString *filePath2 = [directory stringByAppendingPathComponent:@"directionary.plist"];
NSFileManager *fileManager = [[NSFileManager alloc]init];
//移除
//[fileManager removeItemAtPath:filePath1 error:nil];
NSLog(@"%d", [fileManager fileExistsAtPath:filePath1]);
//如果如果文件夹存在就写入(这里没有判断直接写进去的)
[arry writeToFile:filePath1 atomically:YES];
[dictionary writeToFile:filePath2 atomically:YES];
//读取数据
NSArray *readArray = [NSArray arrayWithContentsOfFile:filePath1];
NSDictionary *readDictionary = [NSDictionary dictionaryWithContentsOfFile:filePath2];
NSLog(@"%@",readArray);
NSLog(@"%@",readDictionary);
//写入偏好设置
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
//存储数据
[defaults setObject:@"hzt" forKey:@"string"];
[defaults setBool:YES forKey:@"bool"];
[defaults setInteger:12 forKey:@"int"];
//立即同步
[defaults synchronize];
NSString *readString = [defaults objectForKey:@"string"];
BOOL readBool = [defaults objectForKey:@"bool"];
NSInteger readInterger = [defaults integerForKey:@"int"];
NSLog(@"%@,\n%d,\n%lu",readString,readBool,readInterger);
//归档-------------------------------------------------------------------------------------------------------------------------
NSString *directory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask , YES) lastObject];
NSLog(@"%@",directory);
Person *person = [[Person alloc]init];
person.name = @"hzt";
person.age = 21;
NSString *path = [directory stringByAppendingPathComponent:@"person.plist"];
//将对象归档
[NSKeyedArchiver archiveRootObject:person toFile:path];
//解档
Person *personTwo = [NSKeyedUnarchiver unarchiveObjectWithFile:path];
NSLog(@"%@,%d",personTwo.name,personTwo.age);
//将对象保存到default中
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:person];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:data forKey:@"person"];
[defaults synchronize];//立即同步
//取出
NSData *readData = [defaults objectForKey:@"person"];
Person *personThree = [NSKeyedUnarchiver unarchiveObjectWithData:readData];
NSLog(@"%@,%d",personThree.name,personThree.age);
----------------------------------------归档对象(Model)需遵守协议(NSCoding)-------------------------------------------------
#import <Foundation/Foundation.h>
@interface Person : NSObject <NSCoding>
@property(nonatomic,copy) NSString *name;
@property(nonatomic,assign) int age;
- (void)encodeWithCoder:(NSCoder *)aCoder;
- (instancetype)initWithCoder:(NSCoder *)aDecoder;
@end
#import "Person.h"
@implementation Person
- (void)encodeWithCoder:(NSCoder *)aCoder{
[aCoder encodeObject:self.name forKey:@"name"];
[aCoder encodeInt:self.age forKey:@"age"];
}
- (instancetype)initWithCoder:(NSCoder *)aDecoder{
if (self == [super init]) {
self.name = [aDecoder decodeObjectForKey:@"name"];
self.age = [aDecoder decodeIntForKey:@"age"];
}
return self;
}
