I’m receiving a quite deep JSON object string from a service which I must parse to a JSON object and then map it to classes. How can I transform a JSON string to object in Kotlin? After that the mapping to the respective classes, I was using StdDeserializer from Jackson. The problem arises at the … Read more
This question already has answers here: Android app won’t build — The minCompileSdk (31) specified in a dependency’s androidx.work:work-runtime:2.7.0-beta01 (26 answers) Closed 8 months ago. The community reviewed whether to reopen this question last month and left it closed: Original close reason(s) were not resolved The error message: The minCompileSdk (31) specified in a dependency’s … Read more
Kotlin doesn’t have the same notion of static fields as used in Java. In Java, the generally accepted way of doing logging is: public class Foo { private static final Logger LOG = LoggerFactory.getLogger(Foo.class); } Question is what is the idiomatic way of performing logging in Kotlin? 17 Answers 17
So, due to lack of methods like Long.valueOf(String s) I am stuck. How to convert String to Long in Kotlin? 11 Answers 11
What does a single exclamation mark mean in Kotlin? I’ve seen it a few times especially when using Java APIs. But I couldn’t find it in the documentation nor on StackOverflow. 7 Answers 7
Hi I am a newbie in the Kotlin world. I like what I see so far and started to think to convert some of our libraries we use in our application from Java to Kotlin. These libraries are full of Pojos with setters, getters and Builder classes. Now I have googled to find what is … Read more
If I have a nullable type Xyz?, I want to reference it or convert it to a non-nullable type Xyz. What is the idiomatic way of doing so in Kotlin? For example, this code is in error: val something: Xyz? = createPossiblyNullXyz() something.foo() // Error: “Only safe (?.) or non-null asserted (!!.) calls are allowed … Read more
From Android 9 Pie now, requests without encryption will never work. And by default, the System will expect you to use TLS by default.You can read this feature here So if you only make requests via HTTPS you are safe. But what about apps that make requests through different sites, for instance, browser-like apps. How … Read more
I am trying to consume an API using Retrofit and Jackson to deserialize. I am getting the onFailure error No Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator. 29 Answers 29
In Kotlin is there an equivalent to the Swift code below? if let a = b.val { } else { } 16 Answers 16
