android programming basics

[. Net Object-Oriented Programming Basics] (17) arrays and sets,. net Object-Oriented Programming [. Net Object-Oriented Programming Basics] (17) arrays and sets After learning the three main features of C # And the interfaces, abstract classes and other abstract things, I f

Parent,intposition) {Toast.maketext ( This, "clicked" + (position + 1) + "item", Toast.length_short). Show (); } @Override Public BooleanOnlongclick (View Parent,intposition) {Toast.maketext ( This, "Long pressed the first" + (position + 1) + "item", Toast.length_short). Show (); return true; }}The rest of the layout file code does not change, rerun the program, and then you can test the click event and the long-voltage event, the effect is as follows:This is a simple way to listen to the 2 Tex

Java basics-network programming (UDP programming) and basic udp UDP Programming TCP index operations must establish reliable connections, which will definitely waste a lot of system performance. To reduce this overhead, another transmission protocol-UDP, unreliable connection, is provided in the network. This protocol

.* ;ImportJava.io.* ; Public classhelloclient{ Public Static voidMain (String args[])throwsException {//all exceptions ThrownSocket client =NULL;//represents the clientClient =NewSocket ("localhost", 8080) ; BufferedReader buf=NULL;//One-time reception completeBUF =NewBufferedReader (NewInputStreamReader (Client.getinputstream ())); String Str=Buf.readline (); System.out.println ("Server-side output content:" +str); Buf.close (); Client.close (); }};After you have finished writing the

Original: Android 0 Basics section 62nd: Search box Component SearchviewI. Overview of SearchviewSearchview is a search box component that allows the user to enter text within a text box and allows the listener to monitor user input, and to perform an actual search through the listener when the user enters the search by submitting it.Searchview default is to show a search icon, click on the icon to expand t

Original: Android 0 Basics 60th: Calendar view CalendarView and timer chronometerThe previous issue studied the AnalogClock, DigitalClock, and Textclock clock components, and this issue continues to learn the Calendar view CalendarView and timer chronometer.First, CalendarViewThe Calendar view (CalendarView) can be used to display and select dates, and users can select either a date or touch to scroll throu

[Programming Basics]-method overloading, rewriting, refactoring, and basic programming refactoring Method overload: Method overloading refers to defining multiple methods with the same name in a class, but each method must have different parameter types or number of parameters. By using method overloading, you can meet more situations. For example: If Cat is no

selection, string[] selectionargs) is used to delete data from the ContentProvider of the specified Uri. The public int update (URI uri, contentvalues values, String selection, string[] selectionargs) is used to update the data in ContentProvider of the specified Uri. Public Cursor query (URI uri, string[] projection, string selection, string[] Selectionargs, string sortOrder) for querying the CO of the specified Uri Ntentprovider. 3.UriThe URI specifies the ContentProvider

WinSock programming basics, winsock programming I. Socket mode 1. Blocking Mode When a socket is created, the default blocking mode is used. Calling the recv function will make the program wait and the program will be returned only when the data is received. 2. Non-blocking mode: You can call the ioctlsocket function to explicitly enable the socket to work in

Yesterday met a person, said know thinktphp, but a few years ago.I told him first, xyhcms backstage functions, various sections, as well as the database are introduced a bit.Told him a functional site implementation, said the implementation method.And then on the machine operation, found that his form submission, method transfer value, page pass value, the value of the transfer is not done, do not know to ask.Even the input tag is not known.Such a basis for sure interview difficult to pass.If yo

please contact the author authorized, hereby declare!Past period Summary share:Android 0 Basics Introduction 1th: Android's past lifeAndroid 0 Basics Section 2nd: Android system Architecture and application components those thingsAndroid 0 Basics Section 3rd: Bring you up to talk about

(Shareexpert)--Xin 鱻 all, if necessary reprint please contact the author authorized, hereby declare!Past period Summary share:Android 0 Basics Introduction 1th: Android's past lifeAndroid 0 Basics Section 2nd: Android system Architecture and application components those thingsAndroid 0 Basics Section 3rd: Bring you up

Android DEX basics and androiddex Basics1. What is dex? To put it simply, optimize android .exe. Each apk installation package is available.Compared with the Java Virtual Machine on the PC, it can run. class; The Davlik Virtual Machine on android can run. dex.Why study dex format? Because dex contains all the app code,

Linux shell programming 1 ---- shell script programming basics 1 What is shell script 1 shell is not only a command interpreter but also a programming language, a program written in shell is similar to a batch processing program in DOS. 2. A user can store a series of commands in the file. Generally, a program written

strongly typed definition language is a type-safe language. (2) weak type definition language: The data type can be ignored language, but the rigorous nature of the strong type definition language can effectively avoid many errors. In addition,"This language is not dynamic language" and "the language is type safe" is completely no connection between!For example: Python is a dynamic language, a strongly typed definition language (type-safe language),VBScript is a dynamic language, is a weak type

discuss together, also welcome to join the Android 0 Basic introductory Technical discussion group, grow together!This article copyright for the public Share talent show (Shareexpert)--Xin 鱻 all, if necessary reprint please contact the author authorized, hereby declare!Past period Summary share:Android 0 Basics Introduction 1th: Android's past lifeAndroid 0 Basics