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kotlin entrustment On the introduction of delegation, I will explain the most commonly used ways to implement delegation with several examples of my own implementation. The description will be very clear and easy to understand. In particular, the Lazy initialization method of the inherited Lazy class in the ViewModel extension library in andr ...

1, Overview In the twinkling of an eye, it is 2022. Looking back, the first time I wrote on csdn was 2017, five years have passed. In the past five years, some people around them got married, some had children, some bought a house, some upgraded to management and no longer wrote code. And I have nothing to do with these. I'm still a dish. I ju ...

Functional programming The function does not depend on the existence of any class (from the source code level, from the bytecode level, it still depends on the existence of the class). Typical examples are top-level functions. lambda expression lambda expressions are the same as java, which consists of two parts separated by the "arrow& ...

Android network framework -- OkHttp source code analysis This article is based on Kotlin language Previous article: Analysis of OkHttp source code of Android network framework (1) -- request process After explaining the request process of OkHttp, this article enters the second part - OkHttp interceptor analysis. Interceptor analysis of ...

Kotlin collaboration series article navigation: Kotlin process I - Coroutine Kotlin collaboration process 2 - Channel Kotlin collaboration process III - data Flow Kotlin collaboration process IV -- Application of Flow and Channel Kotlin collaboration 5 - using kotlin collaboration in Android 1, Basic use of Flow Using the hang function in the ...

Welcome to jetpack DataStore, an improved new data storage solution designed to replace the original SharedPreferences. Jetpack DataStore is developed based on Kotlin collaboration and Flow, and provides two different implementations: proto DataStore and preferences DataStore. Proto DataStore can store objects with types (implemented with proto ...

Function definition and call Make function calls better Named parameters Using object-oriented functions such as Java, we must often encounter function calls, such as: joinToString(list, "; ", "[", "]") When we call this function for the first time, we are confused. We don't know the meaning of each parameter, which causes unnecessary tro ...

Introduction to Dart language simplification 1. Introduction Dart should be designed with reference to both Java and JavaScript and kotlin object-oriented JIT & AOT: JIT (Just in Time) advantages: instant compilation, faster compilation during development and faster overloading; Disadvantages: compiling the code into machine code at ru ...

Author: Yi Dong preface There is no perfect architecture, only the most appropriate architecture. Android application architecture changes: MVC, MVP, MVVM, MVI. There are numerous high-quality articles in the technology community on the concept, logic, implementation methods, advantages and disadvantages of these four architectures, ...

Flow asynchronous flowknowcharacteristicBuilder and contextstart-upCancel and cancel detectionbufferOperatorTransition operatorEnd operatorcombinationFlattenabnormalexception handlingcompleteHow to represent multiple values?The suspend function can return a single value asynchronously, but how to return multiple calculated values asynchronously ...