Recent Posts
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Java – how to debug spring AOP
I have a problem with spring AOP, which does not involve all methods (in my opinion) (see this problem for more about …… -
Compiling java files programmatically
I know this has been asked a lot, but I still don't have a good solution. I still don't understand some parts So I nee…… -
Java – how to get the selected row index in JSF datatable?
I'm at index There is a database on XHTML <h:dataTable style="border: solid 2px black;" value="#{IndexBean.book…… -
Java – how to merge wars into one?
In our company, we have several different modules built as separate wars Can I automate this process? For example, it …… -
Java – why not create a JDBC connection pool?
I'm developing a simple Java EE application with ear files containing jar and war files In the ear project under earco…… -
Java – in Null pointer exception on setonclicklistener
I have a problem clicking the login mode submit button of the listener This is a mistake Caused by: java.lang.NullPoin…… -
Java – how do I create daemon threads?
Can Java programmers manually create daemon threads? how? Solution java. lang.Thread. setDaemon(boolean) Note that if …… -
java – Object. What is this farm by farm copy done by clone()?
In effective Java, the author points out that: What I want to know is his meaning of copying scene by scene Does this …… -
Java – birt jdbcexception “unable to load jdbc driver class: com.mysql.jdbc.driver” upgraded from 2.6 to 3.7
I'm trying to upgrade my version of birt viewer on my Tomcat server, but it seems that I made an error while loading t…… -
Java – r.loess and org apache. commons. The difference between math and loessinterpolator
I'm trying to use Apache commons. Math library to calculate and convert r script into Java script You can use org apac…… -
Design using composition and interfaces in Java
I designed the following for a question: class Animal { // ... } class Guppy extends Animal { ... } class Pigeon exte…… -
Java – r.loess and org apache. commons. The difference between math and loessinterpolator
I'm trying to use Apache commons. Math library to calculate and convert r script into Java script You can use org apac…… -
Android uses recyclerview to implement voting system
This example shares the specific code of Android voting system for your reference. The specific contents are as follow…… -
Android custom view implementation likes control
This example shares the specific code of Android like control for your reference. The specific contents are as follows…… -
Android custom view to achieve subway display effect
This example shares the specific code of Android subway display board for your reference. The specific contents are as…… -
Android custom view implements voting progress bar
This example shares the specific code of Android voting progress bar for your reference. The specific contents are as …… -
Android imitation wechat video suspended window effect
In the project, Tencent cloud audio and video that needs to be accessed can be displayed in the floating window, which…… -
Android uses surfaceview + mediaplayer to play videos
There are two main ways to play video in Android: Surfaceview has been available since Android 1.0, which is very easy…… -
Detailed analysis of cold start optimization of Android performance
1. Preface App cold start is relatively slow, users need to wait a long time to click the desktop image, and the exper…… -
The most scientific writing usage of the four dialog boxes of alertdialog in Android (example code)
First, let's look at the figure above: The XML code is as follows, which is used to write buttons: <?xml version="1…… -
Android 10 developer FAQs (summary)
Q 1: specify system_ UI_ FLAG_ LAYOUT_ HIDE_ Navigation doesn't seem to hide the navigation bar and status bar? A: You…… -
Android implements the function of cleaning cache
Android clean cache implementation, for your reference, the specific contents are as follows 1、 To clean up the cache…… -
Android development face recognition login function
Recently, many company apps have realized the function of face recognition login. Today, yinpeng took you to do this f…… -
Implementation of detection of external keyboard in Android
Today came a problem: the soft keyboard can't pop up. After analysis, because the system judges that there is an exter…… -
Recyclerview realizes the function of single and multiple selection of streaming tags
Introduction to recyclerview Recyclerview is a more powerful control for Android. It can not only achieve the same eff…… -
Android custom components implement meter counting panel
A few days ago, when developing the company's project, there was a place to make a score dashboard and score according…… -
Listen for sliding events in the flitter
At the mobile end, the original pointer event model of each platform or UI system is basically the same, that is, a co…… -
Android custom view to achieve bullet screen effect
There are bullet screen functions in many live videos, but there are no simple and easy-to-use bullet screen controls …… -
Using fluent to implement a walking lantern layout example code
The riding light is a common effect. This article talks about how to use pageview to realize a riding light in fluent.…… -
Specific use of object expressions and object declarations in kotlin
The main difference between kotlin's object expression and anonymous inner class in Java: anonymous inner class can on…… -
Android simple implementation of barrage effect
This example shares the specific code for Android to realize the barrage effect for your reference. The specific conte…… -
Android realizes video barrage function
This example shares the specific code of Android video barrage for your reference. The specific contents are as follow……