Lập trình ứng dụng cho giao thức UDP

... 7 Lập trình ứng dụng cho giao thức UDP 1. Tổng quan về giao thức UDP TCP/IP là một họ các giao thức được gọi là họ giao thức IP, bao gồm bốn tầng. Cần nhớ rằng TCP/IP không phải là một giao thức ... một-nhiều bằng cách sử dụng các datagram multicast và unicast. Giao thức IP là giao thức cơ bản của Internet. TCP và UDP đều là hai giao thức tầng giao thức vận trên cơ sở của giao thức IP. Hình dưới ... và họ giao thức TCP/IP. Các tầng OSI Họ giao thức TCP TCP/IP Stack 7 Tầng ứng dụng Tầng ứng dụng HTTP FTP SMTP RIP DNS 6 Tầng trình diễn 5 Tầng phiên 4 Tầng giao vận Tầng giao vận TCP UDP 3 Tầng...

Lập trình ứng dụng cho iPhone part 15

... also do some slightly more complex things, either during setup or at runtime. At setup you can choose to create a navigational hierarchy and push a user into it before he or she takes any actions. ... ViewController within your program. 15.3 Using the flipside controller To create a flipside controller, choose the Utility Application template when you start a new project. It will create a small hierarchy ... dismissModalViewControllerAnimated:YES]; You could design your own modal view controllers for when you want to have users make a choice before returning them to their regular program. More commonly, you’ll use picker controllers...

Lập trình ứng dụng cho iPhone part 18

... You’re placing buttons on the toolbar that call three methods: choosePic: , takePic: (when a camera’s available), and savePic: . choosePic: C and takePic: D are similar methods. Each calls up ... integrated into the rest of your application, it’s a pretty good choice—it often works well for video, but it’s a somewhat more questionable choice for audio. The Media Player framework includes two ... [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(choosePic:)]; UIBarButtonItem *camButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCamera...

Lập trình ứng dụng cho iPhone part 19

... within a graphical context. You only “paint” a path when it’s complete, at which point you can choose to either fill it or stroke it. Many of the functions required to define and draw paths are ... a drawing. When you’ve got that in hand, you have to do something with it. There are three main choices: stroke the path, fill the path, or turn it into a clipping path. These functions are all ... path at the end. You can select colors from a variety of color spaces, which are different ways to choose colors. They include RGB (red-green-blue), RGBA (red-green-blue-alpha), CMYK (cyan-magenta-yellow-black),...

Lập trình ứng dụng cho iPhone part 20

... building iPhone web apps using HTML , CSS , JavaScript, and the dynamic programming language of your choice. As we said at the time, web development is one of two major ways that you can program ... initWithURL: requestWithURL:cachePolicy:timeoutInterval: Creates a request with specific caching choices; equivalent to initWithURL: cachePolicy:timeoutInterval: 401Using UIWebView The catch with ... whenever the user touches the web view, but we wanted to show the UIWebView delegate methods, so we chose this slightly more circuitous route. And that’s it—a simple web thumbnail program, as shown...

Lập trình ứng dụng cho iPhone part 21

... mechanism special- ized for searches UISegmentedControl UIControl A control for making one of sev- eral choices UISlider UIControl A control for setting discrete values Table A.1 A listing of the most ... , download a certificate, and download a provisioning profile. From that point, the member can choose to compile onto a device rather than to the iPhone Simulator by changing the pop-up window...

Tài liệu Lập trình ứng dụng cho iPhone part 1 docx

... ModeFigure 1.1 The iPhone supports two dramatically different views, landscape and portrait. Choosing between them is not just a question of which is easier to read, but also requires thinking ... we’ll look at more of the differences between web develop-ment and the SDK so that you can better choose which of them to use for any individ-ual development project....

Tài liệu Lập trình ứng dụng cho iPhone part 2 doc

... have to look great. You can develop them quickly using the web and then your administrators can choose whether to input data from their iPhones or from their desktops. Conversely, you want to ... end-all of iPhone software. We feel there are genuinely places where web development is a bet-ter choice. We’ll argue the reasons that you might select web development over SDK right here, in...

Tài liệu Lập trình ứng dụng cho iPhone part 3 pdf

... what it looks like. You’ll be able to choose whether to have status-like bars or bottom bars depending on the needs of your program. Once you’ve made a choice, you can just pick the right class ... for-ward users from one set of pages to the other depending on their device, or give them the choice to move to the parallel website no matter which device a user is working from. We suggest ... Facebook example site. We recommend this approach because we remain committed to letting users choose their web experience whenever possible, but also because we’ve already seen iPhone web apps...

Tài liệu Lập trình ứng dụng cho iPhone part 4 pdf

... />This code doesn’t change the web app when it’s run through the browser. It’s only when a user chooses to save your app to his or her iPhone home page and then calls it back up that things will ... become an increasingly good option as time goes on, further adjusting the balance of development choices that we discussed in chapter 2. The fact that we couldn’t fully document some of its features ... just like iPhone-native apps.56 CHAPTER 4 Advanced WebKit and textual web apps First, you might choose to build a textual web app, which is an application that is largely built on the fundamentals...

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