Programmer Group

The essence of optimization The purpose of source code optimization of marriage and love system is to ensure the robustness of the program. Sometimes it is not necessary to spend too much time when the program can run normally. Cyclic optimization Take an example, please pay attention to this code, the source code of marriage and marriage sy ...

void park(): blocks the current thread. If the unpark method is called or the current thread is interrupted, it can be returned from the park() method void park(Object blocker): the function is the same as method 1. An Object object is added to the input parameter to record the blocking objects that cause thread blocking, so as to facilitate ...

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Here, we can learn: 1. Compose is a declarative UI, not a traditional command UI. Instead of holding View to setXXX(), it uses functions to describe a UI state. 2. Compose adopts the idea of attribute refinement and behavior isolation. For example, in the demo, text is the direct attribute of text, and background is an attribute of modifier. ...

Recommended by Haowen: Author: Ricardo mjiang preface At the end of July this year, Google officially released the 1.0 stable version of Jetpack Compose, which shows that Google believes that Compose can be used in the production environment. I believe that the wide application of Compose is in the near future. Now should be a better time t ...

Local and global references in JNI In the previous article, I introduced creating object arrays in JNI. This article is the eleventh in the JNI series. It introduces how to call Java methods and static methods in Native code in JNI. The outline of the series is as follows: Introduction to JNIJNI basic typeJNI StringJNI arrayJNI instance vari ...

Series articles Tip: go to the Android learning column and watch more! Click me directly – > Android learning column preface Create a new project named LBSTest. Baidu map (5) let Baidu map display (picture and text + code) Realization effect activity_main.xml (modified) The content in the layout file is very simple, ...

Why can Kotlin write Android programs? Because the code written in Java language needs to be compiled into a. class file to execute, and the code written in Kotlin will also be compiled into a. class file. For the Android operating system, it does not need to care or care about the language in which the program is developed, as long as the fina ...

preface So far, the Gradle foundation and Kotlin foundation have been explained. Therefore, in this article, we will explain in detail the construction optimization of Gradle and how to migrate from Groovy to KTS! Don't say much, just start! 1. Gradle build optimization Optimization is all about configuration. Just go through it quickly! Fo ...

The Content Provider is used to share data between different applications. The application uses a ContentResolver object to manipulate the specified data. 1 Content Provider overview The Content Provider implements a set of general methods to provide data addition, deletion, modification and query functions. The application obtains the Cont ...