https://www.runoob.com/kotlin/kotlin-tutorial.html https://www.kotlincn.net/docs/reference/null-safety.html https://cloud.tencent.com/developer/article/1591238 https://www.kotlincn.net/docs/reference/lambdas.html https://www.jianshu.com/p/cd3a7c189e02...
This reference can be either the name of the class or a constructor of the base class. The difference depends on whether the derived class has a primary constructor or not. If the derived class has no primary constructor, it needs to call a constructor of the base class in its secondary ...
reference Kotlin与C#和Gosu类似,提供了扩展一个新功能的类,而不必继承类或使用任何类型的设计模式,如Decorator(装饰者模式)。这是通过称为扩展的特殊声明完成的。Kotlin支持扩展功能和扩展属性。 扩展功能 要声明一个扩展函数,我们需要一个接收器类型(即被扩展的类型)作为其名称的前缀。以下是为MutableList...
* See [Kotlin language documentation](http://kotlinlang.org/docs/reference/basic-types.html#arrays) * for more information on arrays. */ public class Array<T> { /** * Creates a new array with the specified [size], where each element is calculated by calling the specified * [init] ...
name.toUpperCase() // error, this reference may be null 我们将在下一节学习如何处理这个问题。Kotlin 中的每种非空类型都有其对应的可空类型:Int对应Int?,String对应String?等等。相同的规则也适用于 Android 框架中的所有类(View对应View?),第三方库(OkHttpClient对应OkHttpClient?),以及开发人员定义的所有...
Kotlin Reference (一) Basic Syntax 什么是Kotlin Kotlin翻译成中文叫"靠他灵",它是由JetBrains公司发明的一种基于JVM的编程语言,目前Google宣布kotlin为Android开发的官方语言。 Kotlin的优势 全面支持Lambda表达式 数据类 (Data classes) 函数字面量和内联函数(Function literals & inline functions)...
@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER") 然后在使用 Inline 修饰符的地方添加以下注解,即可愉快的使用。 @kotlin.internal.InlineOnly 注解@kotlin.internal.InlineOnly的作用: 消除编译器的警告 修改内联函数的可见性,在编译时修改成 private ...
First, we call themodifyValue()function, passing the variablenum.Then, we assert that the value ofnumremains unchanged, whereas themodifiedNumvariable should have a value of 15 as resolved from the function call. 3. Pass-By-Reference
Style Reference Enhanced SDK Overview SDK Authentication Location Display Automatic Zooming Route 3D Terrain 3D Free Camera 3D Marker Icon Camera Animation Point Annotation Bubble Map Layer Customization Tile Service Customizing a Map Layer Temperature Map Layer Precipitation Map La...
Style Reference Enhanced SDK Overview SDK Authentication Location Display Automatic Zooming Route 3D Terrain 3D Free Camera 3D Marker Icon Camera Animation Point Annotation Bubble Map Layer Customization Tile Service Customizing a Map Layer Temperature Map Layer Precipitation Map La...