software development from scratch

0. [WP Developer experience Andriod Development] install and configure Android Studio from scratch and write the first Android App, andriodandroid0. required installation files I have been working on WP for a few years. Recently I am a little interested in Android. I will try Android development. I will go to the topic and install the

provides some performance improvements.Finally we get a very safe and well-structured code:;(function ($,window,document,undefined) {Our code:blah blah blah ...}) (jquery,window,document);And as for this undefined, it is very interesting, in order to get unmodified undefined, we did not pass this parameter, but received it when received, because the actual is not transmitted, so ' undefined ' that position received is the real ' Undefined ' out. It is a technology and a way of thinking that des

java.util.random;import Android.app.activity;import Android.os.bundle;import Android.view.menu;import Android.view.View;import Android.widget.gridlayout;import Android.widget.imageview;public class Mainactivity extends Activity {GridLayout GridLayout = null;//The position used to hold the space listActivity_main.xmlItem.xmlThe code is so much. Overall is relatively simple, of course, I am now only consider the implementation. No question of efficiency is taken into account.The following is the

A project is created:Creating a project is the first step in development.Run Untiy after the first run will pop upWe are here to create a project at random.Two untiy Panel Introduction:Three-code Editor switching:Here I have installed the vs2012.The development of the environment here is basically even good, you can't wait to do the development of the pit. Just a moment, let me introduce some basic knowledg

[Development Diary of Android in a row from scratch] (13th) -- Analysis of Android controls, and introduction to android Android controls are derived from android. view. view class, in android. the widget package defines a large number of system controls for developers to use. developers can also derive custom controls from the View class and its subclass. I. Android Control Structure Android has an import

[Development Diary of Android in a row from scratch] (6) -- Broadcast aggreger and androidaggreger of four Android ComponentsBroadcast receivers exist as system listeners. They can listen to events in the system or other applications in the system to respond. For example, when the device is started, the application must check the data changes. In this case, the message can be broadcast to notify the user. W

function, printing charactersFor example, the following:Screen Refresh color:Glclearcolor its parameters corresponding to the Freeglut Glut_rgba setting mode, the value range 0~1.0f corresponding 1~100% color intensity.The following is an intuitive mix of Rgba:Examples: glClearColor(1.0f, 0.0f, 0.0f, 0.0f);For red glClearColor(0.0f,1.0f, 0.0f, 0.0f);For Green glClearColor(0.0f, 0.0f,1.0f, 0.0f);For Blue glClearColor(1.0f, 0.0f,1.0f, 0.0f);For purple glClearColor(0.0f, 0.0f,0.5f, 0.0

Unity3d nearly two years to get up quickly. I have been very interested in the game, so I would like to find the opportunity to game development. One goal is to make money, and the second is to accomplish your own little dream.Unity3d talent is still scarce, the recruitment site on the company really dare to take the money to hit. Let. NET program dog sentiment why, so, for money, ready to turn game developed.Needless to say, after the learning of the

[Development Diary of Android in a row from scratch] (2) -- debugging and android beginnersProgrammers spend half of their time testing bugs, and being a programmer encountering bugs is inevitable. Therefore, mastering the BUG debugging technology is crucial. Next, let's talk about several key points of debugging. 1. Select a debugging machine (simulator) Ii. Auxiliary Log File Log Android provides a static

[Development Diary of Android in a row from scratch] (14) -- Button control + Custom Button control, androidbutton I haven't seen you for a long time. It's the beginning of a new semester. Why do I feel so sad! Many things happened this week, and three days off on Holidays (not so leisurely For A Long Time ), the intern company was forced by the team lead to solve a background login problem. The result was

Yesterday wrote an Android Demo, the logic is probably from TextView get the value, and then processed and then put back into the TextView. The entire process is triggered by the onclick of a button.But in the process of debugging, a click button on the Force Close dialog box, looked at the long time only to find the problem, the original data type conversion of the exceptionThe original code:String number = (string) text_number.gettext ();The changed code:String number = Text_number.gettext ().

" otherbuttontitles:nil];[ Alert show]; [Alert release];}} Code Description:The progress property of the Uiprogressview control is the 0.0~1.0 annoying range. 0.0 time at the beginning of the position, 1.0 is the progress to 100%. Shimen the main contribution, respect the work of the author, please do not reprint. If the article is helpful to you, you are welcome to donate to the author, support the Shimen, donate the amount at random, ^_^ I want to donate: Click Donate Cocos2d-x so

[Development Diary of Android in a row from scratch] (12)-data transmission between Android Components We have components, so we lack a channel to transmit information between components. Using Intent as a carrier is a king of practices. In addition, the file system can be used for data sharing. You can also use the Application to set global data and use components to control data. I. Intent data transfer I

Toss it out for a while and finally settle it,Probably because of a network problem.XML has never been accessibleMaven skeleton build project slow and outrageous, all in the generating project in Batch mode Wait, the idea status display bar is not runing, and no card dead. View debug information found, is maven get archetype-catalog.xml caused. (It takes a long time to get to the http://repo1.maven.org/maven2/archetype-catalog.xml with the viewer.) ）XML can't download soThe first step I download

center to the nearest corner from the center of the circleb) Closest-side the center of the circle to the nearest edge from the centerc) Farthest-corner Center to the farthest angle from the centerd) Farthest-side the center to the farthest edge from the centerNote: Repeating a radial gradientEg:background:-webkit-repeating-radial-gradient (Red 0%,yellow 5%,green 10%);Extended:1. Add MasksSyntax:-webkit-mask-image:url (Mask picture path) | Use gradients as masks;-webkit-mask-repeat:no-repeat|re

horizontally vertically on the screen windowElementWidth:value;Height:value;position:fixed;left:50%;top:50%;margin-left:-width/2+ "px";margin-top:-height/2+ "px";}2. The variable width and height elements are centered horizontally vertically on the screen windowElementposition:fixed;left:0;right:0;top:0;bottom:0;Margin:auto;}Xi. the indefinite width and height of the child elements are centered horizontally vertically in the parent element1. Programme IParent element {position:relative;}Child e

In the previous essay Ruby on Rails development from scratch (Windows) (ii)-Create project and first Hello World, we described how to use instantrails to create a project and write a simple HelloWorld page, Today on the basis of the last, write a simple page jump. 1. Change the contents of the Say_controller.rb file in the Appcontrollers directory to the following: Class Saycontroller We see that compa

and use the virtual hard disk directly on the new PC.Click "Edit Virtual machine settings" To select the "CD/DVD" option. Then select "Use iOS. "Choose the 10.9 we downloaded."Click "Turn on this virtual machine" on the main screen to enter the installation operating system process. WhirringYou look good.We cannot see the hard disk at this time because there is no partition format. Click "Utilities" on the menu bar above. Eject select "Disk Utility"Click "Partition"If you do not have AppleID cl

1, activity is one of the four major Android components (application component), simply speaking activity is the usual user interface, in general, an activity occupied by the window is full screen, But it can also be a small floating window on top of other activity. An Android project has at least one activity,activity that can have multiple instances of view, such as text boxes, progress bars, checkboxes, buttons, and so on. Multiple activity through intent to achieve jumps.Note: Each new activ

The difference between setbackgrounddrawable and SetbackgroundresourceMany users do not know the view class provides setbackgrounddrawable and Setbackgroundresource difference is what, while the Android view class many subclasses such as TextView, ImageView have these methods , and there are some differences between these methods, such as Setimagedrawable, Setimagebitmap, and Setimageresource ().First, the use of setbackgroundxxx, set this view background.The setbackgrounddrawable parameter is t