Question

我是swift的新手，我实现了一个演示，其中我有多个对象的字典，其中有一些uiimage对象。

我如何区分uiimage对象？我正在使用isKindClass，但它对我不起作用，并且给出错误，例如＆＃34;＆＃39; AnyObject＆＃39;剂量不具有成员名称isKindOfClass＆＃34;

代码就像这样

func initURLConnectionWithRequest(requestUrl:NSURL,apiTag:NSInteger,paramDic:NSDictionary,obj:NSObject) ->IMDRequest
    {
        var newRequest = IMDRequest()
        request1 = newRequest;
        self.tag=apiTag

        var request = NSMutableURLRequest(URL: requestUrl)
        var timeInterval = NSTimeInterval(60)
        request.timeoutInterval = timeInterval
        request.HTTPMethod = "POST"


        var strBoundry = "---------------------------14737809831466499882746641449"

        var contentType = "multipart/form-data; boundary=\(strBoundry)"

        request.addValue(contentType, forHTTPHeaderField:"Content-Type")

        var bodyData = NSMutableData()

        var arrParamKey = paramDic.allKeys


        for var i = 0; i<arrParamKey.count; i++
        {
            if (paramDic.objectForKey(arrParamKey[i]).isKindOfClass(UIImage))
            {

            }
        }

        urlConnection = NSURLConnection(request: request, delegate: self, startImmediately: false)!
        self.senderObj = obj;
        urlConnection.start()
        self.isResponseReceived = false
        return request1;
    }

Answer 1

如果你想检查天气是你想要与否的类型变量，或者它是否符合某些协议，那么你可以使用如下。请参考

var abc = ...

if abc is <UIImage> {
    //the variable is of type <UIImage>
} else {
    //variable is not of type <UIImage>
}

这与Objective-C中的isKindOfClass相同。

希望这会对你有所帮助。

找到对象是否是UIImage

1 个答案: