我正在使用NSKeyedUnarchiver来取消归档对象并希望使用委托(NSKeyedUnarchiverDelegate),但我的代理不会被调用.归档和取消归档工作正常,但代理(unarchiver& unarchiverDidFinish)未被调用.有人可以帮忙吗？
我有以下实现：
class BlobHandler: NSObject,NSKeyedUnarchiverDelegate{
func load() -> MYOBJECTCLASS{
let data:NSData? = getBlob();
var mykeyedunarchiver:NSKeyedUnarchiver=NSKeyedUnarchiver(forReadingWithData: data!);
mykeyedunarchiver.delegate = self;
let temp=mykeyedunarchiver.decodeObjectForKey("rootobject")
// No delegates are called
if temp==nil {
blobsexists=false;
}else{
objectreturn = temp! as! MYOBJECTCLASS;
return objectreturn;
}
}
func save1(myobject:MYOBJECTCLASS){
let data = NSMutableData()
var keyedarchiver:NSKeyedArchiver=NSKeyedArchiver(forWritingWithMutableData: data);
keyedarchiver.encodeObject(maptheme,forKey: "rootobject");
let bytes = data.bytes;
let len=data.length;
saveblob(bytes);
}
从未调用以下代理,这些代理也在我的Blobhandler中实现：
func unarchiver(unarchiver: NSKeyedUnarchiver,cannotDecodeObjectOfClassName name: String,originalClasses classNames: [String]) -> AnyClass? {
print("I am in unarchiver !");
return nil;
}
func unarchiverDidFinish(_ unarchiver: NSKeyedUnarchiver){
print("I am in unarchiverDidFinish ! ");
}
我不知道它是什么,但它在清理和重建项目后工作. 我注意到不同的情况,有时构建不同步.有时代码在XCode中,但不执行.听起来令人难以置信,但我想这是真的. XCode 7.2
原文链接：https://www.f2er.com/swift/319297.html