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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 ...

Learn Android reverse from 0 to 1 As the saying goes: "a good memory is better than a bad pen". This series of articles is mainly to record their process of learning Android reverse and the pits they encounter. Thank the books, blogs and the coquettish operations of various bosses referred to in the series of articles. pre ...

1. Project overview Implement a mobile App that can control home devices and obtain relevant temperature and humidity information. App calls HTTP service on ECs; HTTP service encapsulates MQTT subscription and push requests to update the MQTT server; The esp8266 module is connected to the MQTT server through networking, sends the data tr ...

Note: This article mainly solves the problem that the picture is stretched when the picture of android startup page is full screen Requirements: Recently, the app has been completely revised, and then the startup page has been replaced with a whole picture. The effect picture is as follows: 2. Question At the beginning, I cut a whole pi ...

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 ...

Finally, I finished the exam and was able to find some time to write a blog (although I was still worried about my computer performance). I really have nothing to say. The front is nonsense. Enter the text 1. Introduction to course design The Android course I did is a forum system, which has built a background server, so it realizes the f ...

Create type operator The creation operator is used to create an Observable object, Observable subject object and pop up data. RxJava has many creation operators, which are roughly as follows: (1) Create (): create an Observable topic object from scratch using the function. (2) defer(): Observable topic objects are created only when subscribe ...

Facebook announced the plan and roadmap for large-scale reconstruction of Rn in June 2018. The purpose of the whole reconstruction is to make RN lighter, more suitable for mixed development, close to or even achieve the original experience. The technical core of the new architecture is JSI, and Turbomodule is implemented based on it. In the ho ...

Copyright notice: This is the original article of CSDN blogger "Allah Shennong", which follows the CC 4.0 BY-SA copyright agreement Original link: https://blog.csdn.net/Innost/article/details/47204675 Chapter 3 in depth understanding of init 3.1 general Init is a process. Specifically, it is the first process in user spac ...

1. Preface stay Fluent framework analysis (IV) - RenderObject In this article, we briefly introduced the core rules of RenderObject layout in fluent. Constraint is down, Size is up, and the parent node sets the position of this node. In this article, we will analyze this rule in detail. 2. Analysis of layout principles The core rules of Rend ...