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【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
...收到广播包时，协议栈将向上层（也就是应用层，用户可编程）传递广播包。主动扫描，主动扫描除了完成被动扫描的动作外，还会向从机发送一个扫描请求，从机收到该请求时，会再次发送一个称作扫描回应的广播包。
所以...
Technically, why are processes in Erlang more efficient than OS threads?
... (ECMAScript, Java, C♯, VB.NET, PHP, Perl, Python, Ruby, Clojure, Scala, Kotlin, Groovy, Ceylon, F♯, OCaml, the "Objective" part of "Objective-C", the "++" part of "C++"). If it weren't for legacy C code, and legacy features of C++ and Objective-C, we wouldn't even need virtual memory anymore.
...
What is Gradle in Android Studio?
...va) from sources then you can write a complete plugin in Java or Groovy(or Kotlin, see here), and distribute it to rest of world.
Why did Google use it?
Google saw one of the most advanced build systems on the market and realized that you could write scripts of your own with little to no learning ...
How to Create a circular progressbar in Android which rotates on it?
... android:layout_width="200dp"
android:layout_height="200dp" />
kotlin
class MainActivity : AppCompatActivity() {
val TOTAL_TIME = 10 * 1000L
override fun onCreate(savedInstanceState: Bundle?) {
...
timeOutRemoveTimer.start()
}
private var timeOutRemove...
构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...实时性的场景，主要用于离线的分析。
基于MapRduce模型编程做数据的分析，开发上效率不高，位于hadoop之上Hive的出现使得数据的分析可以类似编写sql的方式进行，sql经过语法分析、生成执行计划后最终生成MapReduce任务进行执行...
Custom Adapter for List View
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@YoushaAleayoub exist ordinal for Enum.. in java & kotlin
– marlonpya
Dec 10 '17 at 4:50
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Assert an object is a specific type
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Solution for JUnit 5 for Kotlin!
Example for Hamcrest:
import org.hamcrest.CoreMatchers
import org.hamcrest.MatcherAssert
import org.junit.jupiter.api.Test
class HamcrestAssertionDemo {
@Test
fun assertWithHamcrestMatcher() {
val ...
Change the Right Margin of a View Programmatically?
... bottom = 8.px)
val bottomDp = myView1.marginBottom.dp
Old answer:
In Kotlin you can declare an extension function like:
fun View.setMargins(
leftMarginDp: Int? = null,
topMarginDp: Int? = null,
rightMarginDp: Int? = null,
bottomMarginDp: Int? = null
) {
if (layoutParams is...
Capture Image from Camera and Display in Activity
...y result API: https://developer.android.com/training/basics/intents/result#kotlin
There are many built-in ActivityResultContracts that allow you to do different things like pick contacts, request permissions, take pictures or take videos. You are probably interested in the ActivityResultContracts.T...
Android ImageView Zoom-in and Zoom-Out
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I am using your class in a kotlin project. All I had to do is to replace the ImageView with your ZoomableImageView in the layout xml and it did work out of the box! Thanks.
– Lensflare
Sep 14 '18 at 13:19
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