IOS

Obtain the current hard disk space. Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSFileManager * fm = [NSFileManager defaultManager]; NSDictionary * fattributes = [fm failed: NSHomeDirectory ()

IOS multithreading/GCDMultithreading-Shan Li + (SingleHandel *) Modeling Model { Static dispatch_once_t onceQueue; Dispatch_once (& onceQueue, ^ { ShareSingle = [[SingleHandel alloc] init]; }); Return shareSingle; }/* // The first thread enabling

Combine multiple images in the album into one image and one image in the album.   Code:   -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSArray * imgArray = [[NSArray alloc] runtime: [UIImage imageNamed:

If you upload an ID card number, you can return the birthday string and ID card number string.   Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSString * birthDay = [self

UIActionSheet dynamic Add button, uiactionsheet dynamic : Code: // Click anywhere to bring up UIActionSheet-(void) touchesBegan :( NSSet *) touches withEvent :( UIEvent *) event {UIActionSheet * sheet = [[UIActionSheet alloc] initWithTitle: @

[Basic iOS control and basic ios ControlA. requirement 1. based on the LOL hero list, add the real-time modification feature to it. 2. use UIAlertView3. global reloadData4. partial refresh 1 // 2 // Hero. h 3 // LOLHero 4 // 5 // Created by

Ios8 beta5 usage Evaluation Here are some articles about ios8 beta5 evaluation ~ If you want to know how ios8 beta5 is evaluated, refer to the following ~ The fifth iOS8 test version has a lot of minor changes. Let's take a look at it with the

[Basic iOS control and basic ios ControlA. requirement 1. use TableView with only one section to display the LOL hero List 2. the content includes the title, subtitle, and icon. use plain style 4. use MVC mode 1 // 2 // Hero. h 3 // LOLHero 4 // 5 //

Image rotation, image rotation at any angle   Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. UIImage * image = [UIImage imageNamed: @ "1.jpg"]; NSData * tempData; if (UIImagePNGRepresentation

Portrait (NTChartViewDemo), ntchartviewdemo : Engineering Drawing: This code needs to be added to the third-party library NTChartView. Code: # Import "RootViewController. h "// Add the header file # import" NTChartView. h "-(void)

XMPP-iosxmpp framework import for XMPP-IOS instant messaging Only the import steps of the XMPP-related frameworks are retained for future viewing.I. Framework address 1. Other languages are available XMPPFramework Framework address Http://xmpp.org/

Rotating fan (RoundDisk), rotating fan rounddisk : Engineering Drawing: This code needs to be added to the third-party library RoundDisk. Code:   # Import "AppDelegate. h "// Add the header file # import" RoundDiskViewController. h "-(BOOL)

QuizChartViewDemo, piechartview : Engineering Drawing: File to be imported: QuizChartView. h, QuizChartView. m. Code: RootViewController. h   # Import @ class QuizChartView; @ interface RootViewController: UIViewController {QuizChartView

Obtain the ViewController in the Activity status of the iOS app. // Obtain the view controller (UIViewController *) activityViewController {UIViewController * activityViewController = nil; UIWindow * window = [[UIApplication sharedApplication]

XMPP and xmpp protocols Mysql ERROR 1045 (28000): Access denied for user 'root' @ 'localhost' (using password: YSE). This ERROR is very depressing. After careful analysis, knowing that this error is related to the password may be caused by an

KVC & KVO: kvckvo # Import @ interface human: NSObject @ property (nonatomic, assign) NSString * name; @ property (nonatomic, assign) NSInteger age;-(id) initHuman :( NSString *) initname hisage :( NSInteger) Initage; @ end #import

After xcode archive, the system prompts that the icon, xcodeicon, cannot be found. Archive found that some icon Suffixes in the package were changed from png to tiff, so the system prompts that the icon cannot be found. The following are the

[Basic iOS control and basic ios ControlA. disadvantages of using dictionaries to load data 1. the User specifies the key by himself, which is prone to errors. 2. key is required for both storage and retrieval, which is easy to confuse B. model

IOS Crash Analysis (Article 1)-startIOS Crash Analysis (Article 1)-start 1. Glossary 1. UUID A string. Each executable file or library file on iOS contains at least one UUID. The purpose is to uniquely identify this file.2. dwarfdump The command

IOS Touch ID UsageAfter the iPhone 5 S is released, iOS devices basically have integrated Touch IDs, which is also a great extension for their apps. The usage of Touch IDS is roughly as follows,Swift:Introduce LocalAuthentication. framework Import