Programmer Group

1, Introduction to Android Jetpack 1.1 what is jetpack The official definition is as follows: Jetpack is a suite composed of multiple libraries, which can help developers follow best practices, reduce template code, and write code that can run consistently in various Android versions and devices, so that developers can focus on writing im ...

        In the previous section The Android 10 system process Zygote starts The Zygote process is started. It is said that the Zygote process will create the SystemServer process and execute the main () function. The SystemServer process hosts the core services of the entire Android framework layer. Let's take a look at the ...

1. Download Android Studio Official website: http://www.android-studio.org 2. Right click to run the downloaded installer as an administrator, select the installation path, and go all the way to Next. 3. Error message when opening for the first time: unable to access Android SDK add on list Reason: after the Android SDK is started, it will det ...

How to implement interface calls within Retrofit We all know Retrofit is by defining an interface, taking an instance of the interface, and calling the corresponding method. We start with the process to see how the source code works. 1. First get a customized service instance by retrofit.create method, source code above: Here you can see ...

App Startup transformation process of JetPack What are the difficulties encountered in the process of componentization?What do you think of this difficulty?App StartupApp Startup pros and consTransformation ideasOptimize experienceopen source reference material We hope to divide the business into modules (Libraries), so as to better assem ...

preface Java is actually an interpretative language. Java source code is compiled to generate class files that can be executed by the JVMThe files generated by the Kotlin compiler can be recognized and executed by the JVM, so KT can still be executed in the same environment even if its syntax is very different from JavaKotlin is a simplifi ...

python + uiautomator2 Chinese usage rules 1, Installation 1. Install uiautomator2 #Since uiautomator2 is still under development, you must add '– pre' to install the development version. pip install --pre uiautomator2 #You can also install from source git clone https://github.com/openatx/uiautomator2 pip install -e uiautomator2 ...

1, Initializing the interface in Java code Initialize the ViewPager interface in MainActivity private void initPager() { //Create a Fragment object and add it to the ViewPager data source for (int i=0;i<cityList.size();i++){ //Use the for loop to add the contents of the city collection to the fragment collection ...

The relevant design of OpenMax is very excellent. This paper mainly analyzes and summarizes the IL layer of OpenMax from the design point of view. For the basic concepts of OpenMax and the basic introduction of IL layer, please refer to another personal summary about encoding and decoding abstraction layer OpenMax: https://blog.csdn.net/run ...

In Android, there are some button components, including normal buttons, picture buttons, radio buttons, check buttons, and so on. A normal button <Button android:id="@+id/ID" android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="Display Text" /> There are two ways to add a button click event lis ...