IOS

IOS macro compilation methods: the first method is suitable for modifying the original debugging code # ifdef DEBUG # define NSLog (...) NSLog (_ VA_ARGS _) # define debugMethod () NSLog (@ "% s", _ func _) # else # define NSLog (...) # Define

In-depth understanding of iPhone screen dual-buffering technology (iphone development-basics) Author: Sun Dongfeng (source)   In the development of recent projects, I need to use the "dual-screen buffer" technology. "dual-screen buffer" is the most

Since iOS5 xcode4.2 introduces ARC (AutomicReferenceCounting), there are some minor changes when xcode4.2 is used to create a project. The NSAID utoreleasepool is replaced by the @ {Autoreleasepool // Code for autoreleasepool} block. The _ strong

    After Xcode4 is started, a welcome window is displayed. Click "Create a new Xcode project" to Create a project. You can also create a new project by using the menu or shortcut. Select a new project template Xcode4 provides several project

The previous article introduced how to define UIViewController without using the XIB file. In this case, UIButton is automatically created instead of XIB files. Through this section, we can learn how to use the addTarget method of UIControl and

  In the previous section, we talked about some knowledge about the sprite table and used Zwoptex to integrate images and generate plist files. In this section, we apply the tool in the previous section to regenerate a pair of genie tables and

  By default, all iOS devices will automatically lock the screen after the preset sleep time. If your app does not want the iOS device to automatically lock the screen, you can use the following methods to keep the screen on.     Ios code

The game has not been completed, not only has not been completed, but also has a lot of things!Since we have not carefully considered the extendibility of the level file, many unexpected game elements cannot be added to the game through the level

The use of tableView mainly processes code 1. Create a UIViewController page and double-click the xib file to open the Layout View.2. Drag the Table View in the Libery view to the View window.3. Click Tableview, control + F2 in view to associate

-(Void) recordVideo: (id) sender { UIImagePickerController * ipc = [[UIImagePickerController alloc] init]; Ipc. sourceType = UIImagePickerControllerSourceTypeCamera; Ipc. delegate = self; Ipc. allowsEditing = YES;Www.2cto.comIpc. videoQuality =

// Add a keyboard listening event [[Nsnotifcencenterdefacenter] addObserver: selfselector: @ selector (keyboardWasShown :) name: UIKeyboardDidShowNotificationobject: nil];   # Pragma mark scroll scrollview so that the hidden textfield is displayed

-(Void) setRefreshWindow {CGRect frame = CGRectMake (0.0, 0.0, 320.0, 20.0 );StatusbarWindow = [[UIWindow alloc] initWithFrame: frame];[StatusbarWindow setBackgroundColor: [UIColor clearColor];[StatusbarWindow setWindowLevel: UIWindowLevelStatusBar +

There are four main steps to compile a social network client program.   Next we will introduce the process as follows: 1. Introduce the Accounts and Social frameworks The Accounts and Social frameworks need to be introduced in the process. The

Library: the default setting of the storage program or other status information;   -(void)dirHome{ NSString *dirHome=NSHomeDirectory(); NSLog(@"app_home: %@",dirHome);}Directory path:     // Obtain the Documents directory-(NSString

I wrote a widget similar to the Warcraft GEO map function. For example, you have a scrollView that can be zoomed in and out. It will zoom in and out, click the button in it, and perform other operations. This small map control. It will be

NavigationBar_HEIGHT 44 SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width) SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height) SAFE_RELEASE(x) [x release];x=nil IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]

IOS is currently the most secure and reliable mobile platform, but since it is software, it will not be invincible. Researchers at Georgia Tech Information Security Center recently claimed they have recently discovered major iOS vulnerabilities.

Understanding IOS configuration file 1. Introduction: network devices (routers and switches) can work normally only with two types of software: the operating system IOS and configuration file configuration files contain IOS software commands, these

CISCO 6509 upgrade IOS Master/Slave Control Board1: configure the TFTP server to find the updated IOS path. 6509 # copy tftp sup-bootflash: (migrate to IOS to sup-bootflash of the main engine) Address or name of remote host []? 10.1.1.2Source

(1) Physical layer -- PhysicalThis is the lowest layer of the OSI reference model. Its task is to provide physical connections to the network. Therefore, the physical layer is built on physical media (rather than logical protocols and sessions) and