Recent Posts
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Batch display function of Android listview data
Batch display of Android listview data Layout file activity_ call_ safe2.xml CasllSafeActivity.java The above is the b…… -
Detailed explanation of reading Excel files in Android
Detailed explanation of reading Excel files in Android Recently, there was a need to build data in the app. The new pr…… -
Example code of button using verification code countdown in react native
During the development process, there is a scenario of obtaining mobile phone verification code. At this time, there a…… -
Implementation method of Android optimized adapter through viewholder (must see)
Definition of adapter class: The adapter object is the bridge between the AdapterView and the underlying data. The ada…… -
Filter and listener listener details
Filter and listener listener details Filter filter Introduction to filter Filtering the access to resources is equival…… -
Quickly handle the case where the listview is empty
List display is often used in mobile development. For list display, we often use listview control. There are usually t…… -
Detailed explanation of the use of timer in Java multithreading
We see a lot of timing functions on mobile phones, such as regular garbage cleaning, alarm clock, etc. the timer objec…… -
Android implementation of illustrated button example code
The renderings are as follows: code: The above is the example code of buttons in Android introduced by Xiaobian. I hop…… -
EditText limits the setting method of entering numbers to 1 digit after the decimal point
Set in the layout file of EditText: In the code: The above EditText restricts the input of numbers to 1 decimal place.…… -
Detailed explanation of Android dialog animation examples
Detailed explanation of Android dialog animation examples Animation description: the animation appears and disappears …… -
Android property animation principle and databinding
Android property animation principle and databinding When you see this title, you may wonder what is the relationship …… -
Customize the shape of toast. Multiple clicks will not always pop up the implementation method of toast
The effect is as follows: I encapsulated a class: The following two textviews make the toast wider and higher respecti…… -
Return value of ontouch method in Android ontouchevent event (Introduction)
1. If return false, the ontouch event is not successfully executed. After executing the code in ontouch, the ontouch e…… -
Detailed explanation of image zooming implemented by Android custom ImageView
Detailed explanation of image zooming implemented by Android custom ImageView I think this custom ImageView is very ea…… -
android:layout_ Gravity and Android: the difference between gravity and Android
1. Let's first look at Android: layout_ Gravity and Android: the difference between gravity and Android. android:gravi…… -
Use example code of spring boot timing task
Configuring scheduled tasks in spring boot is extremely simple... Let's look at the example code below: The above is t…… -
Summary of data update methods for Android media library
Summary of data update methods for Android media library In the project, we often create our own directory to store so…… -
Using viewholder to optimize the writing method of custom adapter in Android (required)
I've written a lot about adapter recently, and I'm getting familiar with it slowly. Using viewholder is mainly to opti…… -
Implementation method of Android Scrollview sliding to the top or specified position
In Android development, we often encounter the phenomenon that one screen can not display all the contents. We also kn…… -
How Android changes the default location of toast
The default location of toast in Android is near the bottom of the screen, which is sometimes inappropriate. For examp…… -
On the difference between spring singleton bean and singleton pattern
The difference between spring singleton bean and singleton pattern is that their associated environment is different. …… -
How to encapsulate request parameters in struts 2
As we all know, the action class of struts 2 can obtain all relevant values through attributes, such as request parame…… -
Basic instance analysis of java thread
There are two ways to establish threads in Java: inheriting the thread class and implementing the runnable interface. …… -
Generator configuration method of Hibernate mapping file ID
The optional < generator > child element is the name of a Java class, which is used to generate a unique identif…… -
Analysis of Java programming problems
1、 Introduction Joseph problem (sometimes called Josephus permutation, it is a problem that appears in computer scien…… -
Java learning simple chat example code using TCP
TCP TCP protocol is a connection oriented transport layer protocol that ensures high reliability (no data loss, no dat…… -
On the role of thread communication, wait and notify
The purpose of thread communication is to enable threads to send signals to each other. In addition, thread communicat…… -
Java implementation of output loop number (spiral matrix) method example
This paper describes the method of outputting loop number (spiral matrix) in Java. Share with you for your reference, …… -
Spring integrates the implementation of quartz job and spring task
There are two main types of timed tasks commonly used in spring 1. Spring integrates quartz job 2. Tasks built in afte…… -
How to use hashcode and equals in Java
preface As we all know, Java Lang. object has a hashcode () and an equals () method, which play an important role in s…… -
[spring boot] a method to quickly build a spring boot micro framework
Spring boot is a framework for quickly building an environment. Its design concept is to reduce XML configuration as m…… -
Java dynamic proxy (design pattern) code explanation
Foundation: need to have the idea of object-oriented design, polymorphism and reflection; With the emergence of Java d……