IOS

IOS: converting Chinese characters to PinYinCFStringTransform (_ bridgeCFMutableStringRef) str, 0, kCFStringTransformStripDiacritics, NO); strEnumeration: kCFStringTransformMandarinLatin pinyin with tones KCFStringTransformStripDiacritics pure

When iOS POST requests contain Chinese Characters Hey, some problems with the recent post request. When there is a Chinese character, the request fails. The following are two examples: 1: Usually post requests: (failure in Chinese) // 1: Set the

A brief analysis of the use of Block syntax in ios developmentIn fact, the development of any application leaves multithreading. Block and GCD are the core of multithreading in Apple OC. 1. the internal structure of a block is in oc. The block

[Basic iOS control and basic ios ControlA. requirement 1. head Advertisement 2. custom cell: contains pictures, names, quantity, and price. use xib to design custom cells. Custom cells inherit from uitableviewcell4. "load more buttons" at the end ",

IOS: How To Get A View Controller instanceTo obtain a View Controller instance, you can use the value of its public member variable instead of re-opening a piece of memory, and the original Instance does not just need a block of memory areaInstance

APNS for message pushing and apns for message pushing Push messages using APNS Principle APNS is the abbreviation of Apple Push Notification Service (Apple Push server). It is an Apple server. APNS push can be divided into three phases: Phase 1: The

IOS screenshot function, ios screenshot Code: - (void)viewDidLoad{ [super viewDidLoad]; // Do any additional setup after loading the view. UIImage *image = [self screenshot:UIDeviceOrientationPortrait

Zooming the image, and capturing the middle position. zooming the image Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. UIImage * imagePicture = [UIImage imageNamed: @ "1.jpg"]; UIImageView *

Select whether to remember the password as a whole button and remember the password as a whole button : Engineering Drawing: This code needs to be added to the third-party library BECheckBox. Code: # Import "RootViewController. h "// Add the

[Xcode use] custom code block reference, xcode customXcode itself has a commonly used code block for use. For example, the "if" code block defines the call method 1. you can drag and drop the editing area. 2. when you use the shortcut key and type

Ios-use UINib to load xib files to implement UITableViewCell and uinibxib   The essence of the xib file is xml, which describes interface objects. Each object has a very important attribute. The class attribute in the identity inspector panel, when

Frequently-used macro definition in ios development-improving device screen adaptation and development efficiency // log#define APP_Log(...) NSLog(__VA_ARGS__)// assert#ifdef ENABLE_ASSERT_STOP#define APP_ASSERT_STOP

Use of the Spinner control in Android Development In Android mobile app development, the following five common methods are used for the Spinner object. Usage 1: displays the Spinner option statically as a resource Usage 2: dynamically display the

Summary of Introspection in Objective-C, introspection Introspection is a powerful feature of the object-oriented language and environment. Objective-C and Cocoa are particularly rich in this aspect. Introspection is the ability of an object to

Two methods are used to verify the validity of the mailbox (latest ). Code:   -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. self. title = @ "verify the legitimacy of the mailbox"; // the most

[IOS Study Notes] UINavigationController Demo, ioscontroller //AppDelegate.m- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application

IOS UIPageView and UIScrollView In iOS development, we will certainly use something similar to the welcome interface. You need to flip the page and the following tips. In iOS, the page turning effect is UIScrollView, while UIPageView only adds the

Ios development entry (4): simple usage of UIWebView combined with UISearchBarUIWebView is a commonly used control in ios development. We can use it to browse Web pages and open documents. Today, I will briefly introduce how to combine UIWebView and

Ios-how does the View Controller manage views ?, Ios View The screen of mobile devices is limited. Everything needs to be displayed on a single interface consisting of a single window, in ios, views are switched (the views are already described in

Ios development entry (4): simple usage of UIWebView combined with UISearchBar, UIWebView is a commonly used control in ios development. We can use it to browse Web pages and open documents. Today, I will briefly introduce how to combine UIWebView