自定义的对象的解档和归档
如果想对自己自定义的类进行解档和归档的话 必须遵循一个协议：NSCoding
Student.h 文件
#import <Foundation/Foundation.h> @interface Student : NSObject<NSCoding>
@property(nonatomic,strong)NSString *name;
@property(nonatomic,assign)int age; -(instancetype)initWithName:(NSString *)name AndAge:(int)age; @end
Student.m 文件
#import "Student.h" @implementation Student - (instancetype)initWithName:(NSString *)name AndAge:(int)age
{
self = [super init];
if (self) {
_age=age;
_name=name;
}
return self;
}
//解答时候调用 是一个初始化的方法
-(instancetype)initWithCoder:(NSCoder *)aDecoder{ self=[super init];
if (self) {
_name=[aDecoder decodeObjectForKey:@"name"];
_age=(int)[aDecoder decodeIntegerForKey:@"age"];
}
return self;
} //归档调用该方法
-(void)encodeWithCoder:(NSCoder *)aCoder{ NSLog(@"encodeWithCoder");
[aCoder encodeObject:_name forKey:@"name"];
[aCoder encodeInteger:_age forKey:@"age"]; } -(NSString *)description{
return [NSString stringWithFormat:@"name=%@,age=%d",_name,_age];
} @end
客户端代码
#import "ViewController.h"
#import "Student.h"
#define PATH [NSHomeDirectory() stringByAppendingPathComponent:@"Student.qll"]
@interface ViewController () @end @implementation ViewController - (void)viewDidLoad {
[super viewDidLoad]; NSLog(@"%@",PATH); Student *stu=[[Student alloc]init];
stu.name=@"张F";
stu.age=; NSLog(@"%@",stu);
//归档
BOOL bol=[NSKeyedArchiver archiveRootObject:stu toFile:PATH]; if (bol==) {
NSLog(@"归档成功");
} //解档 Student *stu1=[NSKeyedUnarchiver unarchiveObjectWithFile:PATH];
NSLog(@"%@",stu1); } - (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} @end
运行结果：