The Android Kotlin compiler produces Java 8 bytecode by default (which runs in any later JVM), but lets the programmer choose to target Java 9 up to 18, for optimization, or allows for more features has bidirectional record class interoperability support for JVM, introduced in Java 16, considered stable as of Kotlin 1.5. Since the release of Android Studio 3.0 in October 2017, Kotlin has been included as an alternative to the standard Java compiler.
On, Google announced that the Kotlin programming language is now its preferred language for Android app developers. Language development costs are borne by JetBrains, while the Kotlin Foundation protects the Kotlin trademark. Kotlin mainly targets the JVM, but also compiles to JavaScript (e.g., for frontend web applications using React ) or native code via LLVM (e.g., for native iOS apps sharing business logic with Android apps). Kotlin is designed to interoperate fully with Java, and the JVM version of Kotlin's standard library depends on the Java Class Library, īut type inference allows its syntax to be more concise. To call the method: NetworkTask().Kotlin ( / ˈ k ɒ t l ɪ n/) is a cross-platform, statically typed, general-purpose high-level programming language with type inference. You can't perform network requests on a background thread. The auto-import tool caused me many conflicts.: import android.os.AsyncTask You should manually declare imports here. If using Android Studio, you'll need to add this declaration in your AndroidManifest.xml: This works using the current version of Kotlin as of Dec 2018: Kotlin 1.3.10 Without adding additional dependencies, this works.
Println("My name is " + objData.get("name").textValue() + ", and I'm a " + objData.get("job").textValue() + ".") Val objData = mapperAll.readTree(responseBody) Println("Response Body: " + responseBody) Val responseBody = response.body!!.string() Val response = client.newCall(request).execute() Val body = jacksonString.toRequestBody(mediaType) Val mediaType = "application/json charset=utf-8".toMediaType() Val jacksonString = jacksonObj.toString() Val jacksonObj = mapperAll.createObjectNode() POST with Parameters: fun sendPostRequest(userName:String, password:String) " Send HTTP POST/GET request with parameters using HttpURLConnection :
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