android java tutorial

instantiateitem (view container, int position) initializes itemview. To make it easy for everyone to grasp, I wrote a simple example to implement the horizontal sliding function of the album. First, I customized the itemview ---- viewpageritemview of viewpager. Here I made the definition of the initialized view, and reclaim memory for reloading. The data source is jsonobject. the second is to implement the pageradapter adapter viewpageradater. The data source here is jsonarray. then viewpager

need to get the width of the control of the method?Method One: More than the other two methods more than one calculation, that is, multiple calls to the Onmeasure () method, although the method looks simple, but if the target control calculation time is relatively large (such as ListView, etc.), is not recommended to use.Method Two, its callback method will be called many times, and sliding textview when the time is called, so it is not recommended.Method three, more appropriate.Of course, the

innovative GUI interface, this is arguably the best Java development tool you have. I've seen several blogs about how to use IntelliJ idea to build an Android integrated development environment, but I don't feel detailed, so I want to organize a detailed tutorial, hoping to help the novice (including myself) . "Development Environment" Physical machine Version:

Android tutorial video summary: (1) Part 1: quickly learn about Android videos in 8 days. (2) The second tutorial on Android Development (3) sundy's (4) course series of "android development starts from scratch" (5) Li Xinghua te

Hello everyone, our tutorial is to customize the View in the Android tutorial. For Beginners, they are used to the traditional page layout method of Android, as shown in the following code: View plaincopy to clipboardprint?Android: orientation = "vertical"

Single-Column mode commonly used in JAVA and android, single-column mode in JAVA and android In many development projects, in order to save resources, the constructor of a class is privatized, so that multiple instances cannot be created in the entire project. This method is called the singleton mode. The following Cod

I started with as 0.5, and as the Apkbus, the first Android Studio Perview 2 that was released in the launch was 50K, and more than 1800 replies were downloaded.In my [Android Studio series Tutorial], I'll share with you the installation of the 1.1 stable as and the 1.3 version as NDK integration and use, so stay tuned Other platforms please transf

In making references we can introduce Android animations to make the user feel more interactive, let's take a look at an example of how to use the Android animation to achieve the window's jitter effect.1. Introduce the animation file:2. layout file:3.java file, we introduce animations to make the Relativelayout layout wobble:Package Com.example.windowjitter;impo

Android practice simple tutorial-52nd guns (Communication Between Fragment and Activity), androidfragment The use of Fragment makes our applications more flexible to adapt to various Android devices, but many friends should be unfamiliar with the communication between Fragment and Activity, next we will use an instance to see how to implement it.1. Activity-> Fra

Java JDK Download Java JDK (Java SE Development Kit) Official Download http://www.oracle.com/technetwork/cn/java/javase/downloads/index.html Download installation by Platform Mac Gets the Java installation location $ echo $ (/usr/libexec/java_home) #输出当前JDK路径 Installed JDK8:

Android Java custom exception, Android Java custom 1. custom exception package com;public class ZeroException extends Exception { private static final long serialVersionUID = 1L; public ZeroException(){ super() ; } public ZeroException ( String string ) { super( string ) ; }} 2. Except

Previous Article First, let's take a look at the layout. There is only one button and one image. [Html] Android: layout_width = "match_parent"Android: layout_height = "match_parent"Android: orientation = "vertical">Android: id = "@ + id/button1"Android: layout_width = "mat

Build the android development environment once and for all (download all the reference sample api tutorial on the android official website) and androidtutorial 【Abstract】 This article briefly introduces the establishment of the android development environment, focuses on SDK manager and AVD upgrade issues, and provides