这是一个简单的例子
@interface Secure:NSObject<NSSecureCoding> {
NSString* name;
}
@property NSString* name;
@end
@implementation Secure
@synthesize name;
// Confirms to NSSecureCoding
+ (BOOL)supportsSecureCoding {
return true;
}
- (void)encodeWithCoder:(nonnull NSCoder *)coder {
[coder encodeObject:self.name forKey: @"name"];
}
- (nullable instancetype)initWithCoder:(nonnull NSCoder *)coder {
self = [self init];
if (self){
self.name = [coder decodeObjectOfClass:[NSString class] forKey:@"name"];
}
return self;
}
@end
用法
Secure *archive = [[Secure alloc] init];
archive.name = @"ARC";
NSArray* array = @[archive];
NSData *data = [NSKeyedArchiver archivedDataWithRootObject:array requiringSecureCoding:YES error:nil];
NSArray<Secure *> *unarchive = [NSKeyedUnarchiver unarchivedObjectOfClass:[NSObject class] fromData:data error:nil];
NSLog(@"%@", unarchive.firstObject.name);