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要使用NSKeyedArchiver實(shí)現(xiàn)自定義對(duì)象的序列化,首先需要確保你的自定義對(duì)象遵循NSCoding協(xié)議。NSCoding協(xié)議包括兩個(gè)必須實(shí)現(xiàn)的方法:encodeWithCoder:和initWithCoder:。
@interface CustomObject : NSObject <NSCoding>
@property (nonatomic, strong) NSString *name;
@property (nonatomic, assign) NSInteger age;
@end
@implementation CustomObject
- (void)encodeWithCoder:(NSCoder *)encoder {
[encoder encodeObject:self.name forKey:@"name"];
[encoder encodeInteger:self.age forKey:@"age"];
}
- (instancetype)initWithCoder:(NSCoder *)decoder {
self = [super init];
if (self) {
self.name = [decoder decodeObjectForKey:@"name"];
self.age = [decoder decodeIntegerForKey:@"age"];
}
return self;
}
@end
CustomObject *customObject = [[CustomObject alloc] init];
customObject.name = @"John";
customObject.age = 30;
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:customObject];
CustomObject *unarchivedObject = [NSKeyedUnarchiver unarchiveObjectWithData:data];
現(xiàn)在你已經(jīng)成功地使用NSKeyedArchiver實(shí)現(xiàn)了自定義對(duì)象的序列化和反序列化。
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