Programming VIP

introductionThe official version of JetPack Compose has been released for several months. During this period, in addition to business-related requirements, I also started the landing experiment of Compose in the actual project, because once I want to access the current project, the problems encountered are actually far greater than those requir ...

Audio and video development route: android audio and video development getting started guide_ Jhuster's column technology blog_ 51CTO blog_ Introduction to android audio and video development demo address: RTMPDemo I RTMP usage process The api calling sequence of rtmp protocol is as follows: II Initialize RTMP and connect to the serve ...

[crawler series] 2. Open the App reverse "Pandora's box"1, ForewordIn recent years, most products either have limited Web-side functions or have no Web-side directly. It is becoming more and more difficult to grasp data directly from the Web-sideGrasp the basic operation of HTTP requests through the proxy software (whistle | fiddler|C ...

When the activity returns, it will carry data. We can get it directly from onActivityForResult What do we need to do with navigation? In fact, there are many methods to return data! First: Use the LiveData mode provided by the system; The method is to get the LiveData of the last returned entry: usage method: BFragment setting data to A Nav ...

preface: According to the custom MyButton button button, we set the listening event for this button, and understand the event distribution through the output log. 1, MyButton class public class MyButton extends AppCompatButton { public MyButton(Context context) { super(context); } public MyButton(Context context, Attribu ...

I. hardware environment In Ubuntu 18 The following conditions are required to download and compile the Android 10 (q) source code in the system 1. At least 4G memory, less than 4G memory. Waiting during compiling the source code will be very painful 2. At least 200G hard disk, the larger the better I used a virtual machine in the compilati ...

Original address: Flutter learning (9) -- implementation of flutter plug-in (flutter calls Android native) | small nest of stars one Recently, we need to add apk integrity detection to a Flutter project. We need to get the md5 value of the currently installed apk. Because it cannot be implemented in Flutter, we need to call the native Android ...

preface A powerful framework requires a variety of packages. When we dive into it, it is easy to be confused by all kinds of jumps, design patterns, packaging, etc. in the source code; In this case, we can only understand the general process, but it is easy to forget. Why? Because we haven't really understood it! We don't turn it into our k ...

Material style 01 slide menu 1 DrawerLayout   drawerLayout is a layout container There are two child controls inside, the first is the main screen control, and the second is the sliding menu The second control must specify layout_gravity activity_main.xml <?xml version="1.0" encoding="utf-8"?> <androidx.drawerlayout.widget.Dr ...

What is SparseArray?What data structure does its internal implementation adopt?What are the advantages and disadvantages of SparseArray compared with HashMap?What is SparseArray?SparseArray stores key value pairs, with int as the key and Object as the value. Sparse means sparse and missing. SparseArray application scenarios are relatively scarc ...