Programmer Group

Preface Let's start by saying that my compiler version is as4.0 beta2. gradle:4.0.0-beta02, corresponding to gradle-6.2.2-all.zip. As for the role of viewing, I directly quote the words on the android Developer website: With view binding, you can write code that interacts with views more easily. When ...

0x00 about Android manifest.xml Android Manifest.xml is a required file in every Android program. It is located in the root directory of the whole project, and the Manifest file provides basic information about the application to Android System, which is required by the system to run any applicati ...

We know that the Java running environment for Android devices with lower version (4.X and below, SDK < 21) is Dalvik virtual machine. Compared with the higher version, the biggest problem is that the first cold start takes a long time after installing or upgrading the update. This often takes tens of seconds or even minutes. Users have to fa ...

Who can explain or suggest a tutorial for creating listView in Android? This is my request: I should be able to add new elements dynamically by pressing the button. It should be simple enough to understand (for example, there may not be any performance improvements or convertview) I know there are many questions about this topi ...

Article directory Preface Original layout of zone datanode chunk file Ozone Datanode Chunk Layout: File > per > chunk and file > per > block The actual storage comparison between the old and new layout s of Chunk Quote Preface In zone, the file object data of zone is organized in th ...

Android TextView drawText BaseLine understanding Solution: how to set the vertical center of drawn text in the box 1. getHeight/2 is set to drawText to draw coordinates, which cannot be centered Upper code XML: <com.denganzhi.cusomerwidget.View.MyView android:layout_width="100dp" ...

Catalog 1, What is WebView? What can WebView do? 2, Play WebView Commonly used API Basic use 1. Add network permission 2. Instantiate WebView 3. Set up WebClient 4. Set up WebChromeClient 5. How to interact with JS Web pages jump to other applications through Scheme 1. What is scheme? 2. If the w ...

Link to the general outline of this series of articles: surface flinger series of articles of Android GUI system Summary & description of key points in this chapter: The mind map of this chapter is as above. This paper mainly introduces the concept of FrameBuffer, mainly focuses on the basic ...

Link to the general outline of this series of articles: surface flinger series of articles of Android GUI system Summary & description of key points in this chapter: The mind map of this chapter is as above. It mainly describes the basis of the display system, understands the relationship be ...

Link to the general outline of this series of articles: surface flinger series of articles of Android GUI system Summary & description of key points in this chapter: The mind map of this chapter is as above. It mainly describes the process of acquiring Buffer, locking (the most critical) and ...