IOS中plus.ios.implements实现OC方法后，在OC中回调传值后JS端无法正确获取

代码很简单，

NJS端：
var MasSso = plus.ios.importClass("MasSso");
var masSso = new MasSso();

var hevent = plus.ios.implements("NjsHelloEvent", {
"onEventInvoked:": function(name) {
$.alert("Invoked JSMUI Object’s name: " + name);
});

masSso.setEventObserver(hevent);
masSso.tokenInfo();

OC端：

// 实现类MasSso
@implementation MasSso
@synthesize name=_name;
@synthesize delegate=_delegate;

-(void)updateName:(NSString*)newname{
_name = [newname copy];
}

-(void)setEventObserver:(id<NjsHelloEvent >)delegate{
_delegate = delegate;
}
-(void)tokenInfo{

[TYRZUILogin getTokenImpWithComplete:^(id sender) {  

    [[self delegate] onEventInvoked: @"test"];  

}];  

}

在NJS端 $.alert("Invoked JSMUI Object’s name: " + name); 死活打印出来的name值就不是"test",而是一个无法解析的未知类型的object,转成字符串也不是"test". 请问是不是哪里出了问题？