IOS

Select a city, and then go to the page where tabbar is located (like a new house in ankeju). Select the city tabbar   Homepage display: When you click a cell: File directory:   ChooseCityViewController. h #import @interface

Click the fake search to go to another page (similar to the new house of anjuke) and jump to the new house   : Click "Search: RootViewController. h #import @interface RootViewController : UIViewController@end   RootViewController. m   -(Void)

Pie Chart and bar chart     Start: After you click the pie chart, the pie chart is displayed, and the text is displayed in the lower left corner ,: Project architecture diagram. Note that this project imports a third-party library pieChat, which

IOS array quick sorting Welcome to my new blog: developers say Sorting array elements is a problem that can be encountered in any programming language. Most of them have provided some convenient sorting methods for us to use, in iOS development,

Delegate between two views in ios (delegate) Currently, two views (ViewController and ViewController1) are redirected from ViewController to ViewController1 with parameters. After selecting the data in ViewController1, valid data is taken back to

IOS 8.0 frosted glass effect UIVisualEffect With the release of iOS8.0 and OS X 10.0, a large number of glass wool effects can be seen everywhere. Previously, we implemented the frosted glass effect through CGImage. Now, XCode6 has its own API to

[IOS] What does _ block in Obnjective-C mean? The _ block Mark tells the compiler that special processing is required for this variable in the block. Generally, the variable value used in the block is copied, so the modification to the variable

IOS determines whether a network exists Every iPhone developer that has integrated a network connection based application has had to follow the Apple HID (Human Interface Design) rules. this means, that in order to get the Apple reviewers to

IOS prints the name of all the sub-views in the view. Recursion: - (void)listSubviewsOfView:(UIView *)view { // Get the subviews of the view NSArray *subviews = [view subviews]; // Return if there are no subviews if ([subviews count] ==

Ios judges qq, bank card, mobile phone number, and other public methods. # Import Typedef enum { IdentifierTypeKnown = 0, IdentifierTypeZipCode, // 1 IdentifierTypeEmail, // 2 IdentifierTypePhone, // 3 IdentifierTypeUnicomPhone,

IOS... NS_REQUIRES_NIL_TERMINATION The official example is good. Please note it here.   #import @interface NSMutableArray (variadicMethodExample)- (void) appendObjects:(id) firstObject, ...; // This method takes a nil-terminated list of objects.

An error occurred while locating iOS8. Time: 2014-10-10 Today, during development, I found an iOS8 locating problem. After the operation is executed, the delegate method after positioning will not be called, then I checked the app positioning

Set the background color of the status bar for ios Method 1: [UIApplication sharedApplication]. statusBarStyle = UIStatusBarStyleBlackOpaque; Self. navigationController. navigationBar. tintColor = [UIColor blackColor]; If (is_ios_7_Later ){

IOS Address Book Basics After iOS 6, the app needs to be authorized to access the address book once, even if it is uninstalled and then installed, no further authorization is required; Two frameworks are required for the development of Address Book

IOS development-UILabel automatic line feed and highly adaptive This is mainly because someone on the Forum asked this question today. After solving the problem, Mark it by the way. It is very simple, and the code is clearly written. Directly add

Ios inHouse release application I. clarify several concepts 1. Enterprise Edition IDP: iOS Development Enterprise Program. Note that $299/Year is not $99/Year. 2. In House: Refers to publishing within an enterprise, which is only available to

Web Service network communication between clients and servers in iOS (2) In the actual application development process, the user experience of synchronous requests is not very good. We all know that Apple attaches great importance to user

FMDB for iOS developmentAs a lightweight database, sqlite is widely used in many embedded devices because it occupies a small amount of memory. IOS SDK has started to support SQLite for a long time. We only need to add libsqlite3.dylib and introduce

NSTImer repeat the task and nstimer repeat the task ProblemThe application needs to schedule the code for execution at a specific time. In addition, you want to repeat the task.SolutionRun the NSTimer scheduling code at a specific time. To use nst,

Use plist to display cities and plist to display cities   When no index is clicked:     Click the index:       Code:   RootViewController. h #import @interface RootViewController : UIViewController{ UITableView * city; NSDictionary *