当“< null">发生崩溃时因为在SWIFT中收到了来自api的响应

问题描述

从api获取图像URL null作为响应，有什么方法可以修复它.api的响应是:

Getting the image url null as response from api, is there any way for fix it. Response from api is:

"image_path" = "<null>";

试图这样处理:

if !(arrList.objectAtIndex(indexPath.row).valueForKey("media")?.objectAtIndex(0).valueForKey("image_path") is NSNull) {
            // optional is NOT NULL, neither NIL nor NSNull
        }

它仍然崩溃，请指导.更新:

It is still crashing please guide.Update:

发现了问题，null实际上不是问题.在下面发布回复，以使事情变得清楚.

Found the problem, null was not the issue actually. Posting the response below to make things clear.

media =             (
                            {
                id = "97eb48a0-429a-11e6-873c-ad7b848648f1";
                "image_path" = "https://s3-eu-west-1.mazws.com/facebook_profile_images/15105131.png";
                "room_post_id" = "97c572e0-429a-11e6-b72b-fd489f63a1fc";
                "user_id" = "66fe22a0-4296-11e6-a1d9-69dc307add4b";
                "video_path" = "<null>";
            },
                            {
                id = "981a6880-429a-11e6-b039-736a0bf954dc";
                "image_path" = "<null>";
                "room_post_id" = "97c572e0-429a-11e6-b72b-fd489f63a1fc";
                "user_id" = "66fe22a0-4296-11e6-a1d9-69dc307add4b";
                "video_path" = "https://s3-eu-west-1.naws.com/facebook_profile_images/1255803.mp4";
            }
        );

这是正常的响应，现在是麻烦所在的响应:

This is the normal response, now the response where trouble is:

media =             (
        );

该如何处理?请指导.

推荐答案

像这样尝试..它不会崩溃

Try like this .. it'll not crash

if let imgPath = arrList.objectAtIndex(indexPath.row).valueForKey("media")?.objectAtIndex(0).valu‌​eForKey("image_path") as? String {

//... your value is string 

}

这篇关于当“< null">发生崩溃时因为在SWIFT中收到了来自api的响应的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！