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iOS Build a Blog Reader iPhone App Adapting Data for Display Downloading and Displaying an Image

Alex Chiang
Alex Chiang
2,222 Points
Posted by Alex Chiang
Alex Chiang
2,222 Points

We added a NSString *thumbnail to property. Why can't we just set it as NSURL *thumbnail?

If we set the property as NSURL *thumbnail. then we don't have to create an extra method to convert NSString to USURL. Why didn't the instructor do that in the video?

1 Answer

Oliver Duncan
Oliver Duncan
16,642 Points
Oliver Duncan
Oliver Duncan
16,642 Points

This is late, but I was wondering the same thing. I think it's because the property 'thumbnail' in the dictionary returned by parsing the JSON is an NSString, and I wouldn't imagine you can coerce a string into a URL object that easily - we have to let Objective-C do that for us behind the scenes. So, we instead initialize an instance of NSURL with it's convenience constructor method using the NSString that is returned by the JSON data.