-[__NSCFNumber length]: unrecognized selector sent to instance 0x12465980 崩溃分析及解决方法
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本人在做一个JSOn解析是,碰到了这个问题,弄了一晚上,终于搞定了,这里特地跟大家分享一下;
2014-12-26 20:05:56.601 [40686:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber length]: unrecognized selector sent to instance 0x12465980'
上面是崩溃提示;下面是我的原始代码:
-(void)creatView:(NSDictionary *)dic
{
[self.imgv1setImageWithURL:[NSURLURLWithString:dic[@"iconUrl"]]placeholderImage:[UIImageimageNamed:@"appproduct_appdefault"]];
self.imgv1.layer.cornerRadius=1.0f;
self.imgv1.clipsToBounds=YES;
//星星
WJCViewCoustom *view=[[WJCViewCoustomalloc] initWithFrame:self.frame];
[view creatStar:[dic[@"starOverall"]floatValue]];
[self.imgv2 addSubview:view];
self.imgv3.image=[UIImageimageNamed:@"topic_Comment"];
self.imgv4.image=[UIImageimageNamed:@"topic_Download"];
self.mainlab.text=dic[@"name"];
self.pinlab.text=dic[@"comment"] ;
self.loadlab.text=dic[@"downloads"];
这个错误就是红色的部分。只要将其改为:self.pinlab.text=[dic[@"comment"] stringValue];就可以了。
原因就是解析是没看清楚,dic[@"comment"] 是一个Number 类型的数据,而我没有转换就赋值给了一个字符串。所以上面的报错原因就是类型不对的问题。
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