5/7/2023 0 Comments Swift to objective c converterThe idea is that there are two (or even more) incapsulated systems separated from each other. But there are some other cases: for instance, passing the data to a third party library or transferring it to an external device via bluetooth. The most popular applications for serialization are local storing and sending the data over the internet. Until you take a look into the file you wrote on disc you have no idea the object was serialised into XML. Using this API you don’t control the process and you cannot adjust it. But more importantly, serialization here inextricably coupled with persisting the data.ĭo you see serialization in the code snippet above? Me neither, but it’s implicitly inside. But there are some obvious limitations and downsides of this approach: you cannot use it for your custom classes, it doesn’t look nice in Swift with the type cast (even if you properly handle the errors). Here you serialise an object and store it to a file with just one line of code. Let hosts : = try ? ( hosts as NSArray ). For a long time we would naturally use this code to store NSArray or NSDictionary to file: Quite often serialization is only considered as a part of archiving data on disc. Serialization is the process of translating data structures or object state into a format that can be stored or transmitted and reconstructed later (possibly in a different computer environment). I will also compare ObjC approach to the problem (NSCoding) with the one we got in Swift 4 (Codable) and will take a look at some specific use cases like interop between them and the ability to work with complex object graphs. In this post I’ll try to systemise the knowledge about major formats and types of data serialization in iOS development.
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