problem description running environment MacOS 10.14.3 Android Studio 3.3.1 create a project in AS. The directory of the project is as follows Picture description the dependencies of each module are as follows 1, baselibrary dependencies { ...
problem description the front end of the project uses angular and the background springboot. The problem is that no matter how the backend modifies the file format, the file format downloaded at the front end is txt I tested it with excle here, so I ...
start with java code: public class TUtil { public static <T> T getT(Object o, int i) { try { return ((Class<T>) ((ParameterizedType) (o.getClass() .getGenericSuperclass())).getActualTypeArguments...
what I want to implement is a web service, and requests come in with a lot of filters tagged. My idea now is to make these filters into Vertical, and then communicate all through EventBus. Request to enter the first filter and throw it to the next one af...
following the official description of Anko, I added the following code to my dependency: api "org.jetbrains.anko:anko-commons:$anko_version " then I want to use his startActivity < AAA > () method. Cannot use The project uses Kotlin develop...
using Kotlin to develop Spring Boot is to find the following problems. How to solve them? ] ...
import kotlin.reflect.KProperty import kotlinx.serialization.* import kotlinx.serialization.json.JSON.Companion.stringify class Delegate<T: Any>(val key: String, private val default: T) { operator fun getValue(thisRef: Any?, property: KProperty&l...
problem description at present, I have made an app, by using the combination of Kotlin and Weex. I want to get all the printers in the local area network and call the printer. Is there any way.. the environmental background of the problems and what ...
I have a method that must pass in a fixed object paint every time, because this function is called frequently, so I can t create an object in an inline function. (Canvas.apply(..,..)) bind(pointPaint) drawPoint(poin...
fun test() { Canvas().bindPaintDrawPoints(Paint())( arrayOf(PointF(1f, 2f), PointF(2f, 2f), PointF(3f, 2f), PointF(4f, 2f)) ) } fun Canvas.bindPaintDrawPoints(paint:...
because the subscribed content must be executed on a new thread, at first I thought I needed to wait to avoid memory leaks, but after that, the memory still leaked < H2 > fragment < H2 > class MemoryLeakFragment : Fragment() { lateinit var dispo...
because the number of code methods exceeds 65535 and cannot be packaged, I introduced MultiDex subpackages. when I finished packing, one of the kotlin functions that I ran into the class went wrong, causing the program to crash. has looked up a lo...
write the onclick method directly in xml java can directly create a new method in activity kotlin prompts the error org.jetbrains.kotlin.asJava.classes.KtLightClassImpl I don t know which friend has encountered this kind of problem and how to solve ...
I can get it by reflection when I write java. I wonder if there are other convenient ways for kotlin. ...
is there something wrong with idea s support for spring boot kotlin? use idea to develop spring boot applications. I used to use java,. Now I want to try kotlin (I learned kotlin a long time ago). the front end uses the thymeleaf template engine. ...
the following code will not report an error in Java, but an error will be reported in Kotlin. How to solve it? is that I don t want to care about the generic parameters of the parent class, just inherit it directly in Java. What do I do in Kotlin? J...
FinalTest class FinalTest { public static void main(String[] args) { try { Field field = TestHelper.class.getDeclaredField("ENTITY"); field.setAccessible(true); Entity entity = new Entity("...
want to implement a function similar to that in js require(["a", "b", "c"], function(a, b, c){ }) ask, how is it written as a parameter in a lambda? ...
Can you explain what this line of code means? Why can it be written like this? Why should it be written like this? fun log(tag: String) = fun(target: OutputStream) = fun(message: Any?) = target.write("[$tag] $messa...
I have a data like this { "_double": 2.333, "_float":3.14159, "_int":314, } I will convert _ double to double (not accepted with Double ), and so on. but the data given by the server sometimes looks like...
the requirements are as follows: mac s notebook vscode version is 1.22.2 goole many methods can not install this plug-in has it been successfully installed? Please let me know how to realize it. Thank you . ...
...
it s not issue, for egg. It s about separating the front and rear ends with SPA or using template engines for back-end rendering . Front-end projects are becoming more and more complex, and SPA is very good for development efficiency and suitable f...
loading () { const msg = this.$Message.loading({ content: Loading... , duration: 0 }); setTimeout(msg, 3000); }, iview:loadingloading3setTimeout3loadingsetTimeoutmessag...
how to quickly parse the json content of the data_content variable in the following html through php and convert it into an array <!DOCTYPE html><html><head><title>title< title>< head><body><script type=&quo...