Recent Posts
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Android – logcat says, “the resource has unresolved topic attributes.”
Moreover, according to the official Android documentation: http://developer.android.com/reference/android/content/res/…… -
Android WebView supports full parsing of uploaded files
By default, WebView using Android cannot support uploading files. This was learned after our front-end engineer inform…… -
Android parsing JSON object and example description
JSON is a lightweight object with small data volume, convenient transmission and easy parsing! First, create a new too…… -
Method analysis of drawing circular avatar in Android Application
To draw this round shaded head, the individual is divided into three layers 1. Draw the gradient at the edge of the av…… -
Method for Android to realize horizontal and vertical scroll bars of activity
This article gives an example of how Android implements the horizontal and vertical scroll bars of activity. Share wit…… -
Implementation method of telephone dialer and SMS transmitter developed by Android
This paper describes the implementation method of telephone dialer and SMS transmitter developed by Android. Share wit…… -
Android applications realize vertical and horizontal center layout with LinearLayout
Firstly, the centering under the LinearLayout layout is generally as follows: (Note: in the Android: layout_width = "f…… -
Detailed introduction based on Android service life cycle
Service concept and purpose: The service in Android is different from activity. It can't interact with users and start…… -
Button custom click effect example code in Android
Method 1: 1. Select. XML file under drawable 2. Layout file main.xml -
Android viewpager enables tab switching
This paper introduces how viewpager realizes tab switching through an example, and the effect diagram is as follows: S…… -
Explain in detail the integration of kotlin and anko for Android Development
Kotlin is a programming language based on JVM. Recently, kotlin and anko have been studied. Combined with the current …… -
Java / Android example code for obtaining the real URL of the network redirection file
preface: Today, I got a redirected URL when I used the URL provided by a third party to download files. Unfortunately,…… -
Simple implementation of Android student management system (with source code)
This example describes the implementation of Android student management system, which is shared for your reference. Th…… -
Android student management system
The user can enter three fields: name, gender and age. By clicking the add student button, the student information is …… -
Simple examples of chain call writing commonly used in Java and Android
This article describes the common chain call writing method in Java and Android. Share with you for your reference, as…… -
Android method of storing data without using database
This article gives an example of how Android stores data without using a database. Share with you for your reference. …… -
Use of Android bdflow database artifact
Today, while watching other people's source code, I accidentally found a very useful database artifact. I'll share it …… -
Android implements the countdown function based on countdowntimer
This paper describes the method of countdown function based on countdowntimer in Android programming. Share with you f…… -
Java Unisex bathroom
I have to use Java semaphores to solve this problem, but I don't know how. I can't find any relevant Java data What's …… -
Java – must be called ReleaseStringUTFChars after GetStringUTFChars (when char * is passed to C function)?
I'm a little confused about the objects passed from Java to C? Should they be deleted in native JNI methods or garbage…… -
Java – how to link bifunctions?
I want to link bifunctions, just like in the chainwanted method in the following code example Bifunction takes functio…… -
Java Logging – Wrapper？
I started with a new project and made some considerations about logging I always use patterns, where each class that c…… -
Java – why dir Mkdir() in file No exception handling is required in the case of createnewfile()?
This is a snippet of code File dir = new File("dir"); dir.mkdir(); File file = new File(dir,"file.txt…… -
Package info. Cannot be modified using java 8 Java comments
I'm facing a problem. I have to modify the package information package-info. java @javax.xml.bind.annotation.XmlSchema…… -
How to use opencv featuredetector on small images
I use opencv 3 in Java, and I try to find small images (such as 25) on other images × 25 pixels) However, the feature …… -
Why does go’s compiler “GC” use a different calling convention from C?
C uses cdecl, and I've looked at it and called it with an assembly It feels good. Why break compatibility? Why is anot…… -
Log4j in Java – logils: how to log in to a file?
I'm in Grails config This log4j configuration is available in groovy log4j = { error 'org.codehaus.groovy.grails.…… -
Java – date change listener
My task is to trigger a method to refresh or reset my application every 12 o'clock I tried to search the Internet for …… -
Java – Design Pattern: avoid switching to decide which service to call
For the project, we have a controller / service / Dao architecture We have implemented calls to different provider API…… -
Java – get the current system time and add 30 minutes after that
I want to get the current time in my application I am starting and stopping time from my network service For example: …… -
Migrating from Jack to native Java 8
I'm trying to use lambda expressions and streams in my android project I use the streamsupport library as a stream and…… -
Java – IntelliJ displays the “always true” prompt, but not “always false”
Therefore, I use IntelliJ idea to program in Java. I'm trying to use the keyword instanceof. My code looks like this i……