objective-C学习 归档 archiver

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

    @autoreleasepool {

    //-------------------第一种归档方式------------------------------------

        //归档

//        NSString *homeDirectory = NSHomeDirectory();

//        NSArray *array =@[@"111",@"222",@"abc",@"999"];

//        NSString *path = [homeDirectory stringByAppendingPathComponent:@"array.archiver"];

//        if ([NSKeyedArchiver archiveRootObject:array toFile:path]) {

//            NSLog(@"archiver success");

//        }

//        

//        //解归档

//        NSArray *unarray = [NSKeyedUnarchiver unarchiveObjectWithFile:path];

//        NSLog(@"new array = %@",unarray);

        

    //-------------------第二种归档方式------------------------------------

        

        NSString *homepath = NSHomeDirectory();

        NSString *filepath = [homepath stringByAppendingPathComponent:@"text.txt"];

        NSMutableData *data = [NSMutableData data];

        NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc]initForWritingWithMutableData:data];

        [archiver encodeFloat:50.0 forKey:@"weight"];

        [archiver encodeObject:@"jack" forKey:@"name"];

        [archiver encodeInt:30 forKey:@"age"];

        [archiver finishEncoding];

        BOOL success = [data writeToFile:filepath atomically:YES];

        if (success) {

            NSLog(@"archiver success");

        }

        

        NSData *undata = [NSData dataWithContentsOfFile:filepath];

        NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc]initForReadingWithData:undata];

        float weight = [unarchiver decodeFloatForKey:@"weight"];

        NSString *name = [unarchiver decodeObjectForKey:@"name"];

        int age = [unarchiver decodeIntForKey:@"age"];

        NSLog(@"weiht = %f",weight);

        NSLog(@"name = %@",name);

        NSLog(@"age = %d",age);

        

    }

    return 0;

}