Programmer Group

Source Code Analysis of Android Event Distribution Mechanism Speaking of Android's event mechanism, I believe many people are familiar with it. Detailed understanding of the rules of event transmission in Android enables us to better understand the logic of event handling and deal with complex issues such as sliding conflicts. This paper main ...

Source: http://blog.csdn.net/songzitea/article/details/13614977 Background introduction The main content of this section comes from the introduction of Trajkovic operator by Miroslav Trajkovic and Mark Hedley[1] in 1998. FastCorner Detection . Trajkovic Operator (4-Neighbours) [3] (Note: The pictures in this section are mainly fro ...

1. I wanted to start at the bottom and see how Android events came about and how they went from the bottom to Windows, but Summary of a netizen: After Linux Kernel writes rawinputevent to the device node, InputReader reads the original event through EventHub and translates it into an Android input event, which is then handed over to InputDispa ...

This article mainly reviews the original workflow of view in Android. The workflow of view includes three main processes: measure, layout and draw. Before entering the theme, we should understand several concepts in order to better understand the three workflows of view. Understanding ViewRoot and DecorView ViewRoot corresponds to the ViewRo ...

ScrollView in the layout file, EditView in the ScrollView, a control at the bottom of the layout (see the layout code below). As soon as the program starts, EditView gets the focus and pops up the soft keyboard. It doesn't feel good to top the control at the bottom, so I want to listen to the soft keyboard pop up, hide the bottom control at th ...

A few days ago, I encountered a problem that the low probability reproducing lock screen interface does not display, only displays the status bar. I followed the process of starting the display of the lock screen interface. In this sharing, it is also convenient for me to view it later. Here's a brief introduction Zygote Startup Process After t ...

1.Nagios Profile Introduction Let's start with "private" and "public" services, applications and protocols, where "private" refers to the CPU of the host. load,Memory usage,Disk usage,Logged in users, Running processes and other services, "public" services refer to services that can be obtained thr ...

Ultra-Pull-To-Refresh has always been my favorite in drop-down refresh, where you customize a HeaderView style. It's slightly different from the normal style. Look at the effect first. At first glance, it looks no different from the normal drop-down refresh style, but when you look carefully, you will find that the head is covered in the con ...

Preface In the previous section, we explained authentication and its basic information in detail. In this section, we implemented authentication in two different ways, and analyzed how to make rational use of these two ways. The basic knowledge involved in this article, please refer to the previous article, and stop talking nonsense. Preface Fo ...

The Purest Android Live Broadcasting Technology Combats the Compilation and Operation of 01-FFmpeg The latest practical course, Android Automation Brush Quantity, Cheating and Cheating Prevention, Case: Brush Alliance Statistics, Batch Registration of Apple Accounts This series of articles will study the most pure implementation of Andro ...