Basic knowledge of IOS development-fragment 16, basic knowledge of ios-Fragment

Basic knowledge of IOS development-fragment 16, basic knowledge of ios-Fragment   1: dynamic type of Objective-C syntax (isKindOfClass, isMemberOfClass, id)   The ability of an object to obtain its type at runtime is called introspection. There are

[Study Notes] [C Language] break and continue, breakcontinue

[Study Notes] [C Language] break and continue, breakcontinue 1. Use Break:1. application scenarios1> switch statement: exit the entire switch statement2> loop structure: exit the entire loop statement* While* Do while*2. NotesValid only for the

[Study Notes] [C Language] function, Study Notes C Language

[Study Notes] [C Language] function, Study Notes C Language1. What is a function? Any C language program is composed of one or more program segments (applets), each of which has its own functions. We generally call these segments "functions ".

Design and Manufacturing Process Analysis of iPhone 4 to iPhone 6, iPhone 4iphone6

Design and Manufacturing Process Analysis of iPhone 4 to iPhone 6, iPhone 4iphone6 Here I will explain some of my views on the design and manufacturing processes of these mobile phones. These five models have three appearances: Sandwich Design for

Objective-C Variable Parameter Function implementation, objective-c variable

Objective-C Variable Parameter Function implementation, objective-c variable1. Preface I believe that those who have been familiar with OC are familiar with NSLog. By carefully checking the original definition of NSLog, we will find that its

IOS Key-Value Observing (KVO), key-valuekvo

IOS Key-Value Observing (KVO), key-valuekvo Kvo, similar to the observer mode, detects object changes by setting an observer for the specified object. After the attribute of the specified object is modified, the object used as the observer will

[Study Notes] [C Language] cyclic structure-for, learning note structure-

[Study Notes] [C Language] cyclic structure-for, learning note structure-1. Use: For (Statement 1; condition; Statement 2){Loop body}Statement 1: initialization statementStatement 2: Incremental statement (statement executed after the loop body is

[OcUI diary] UIImage and UIImageview, ocuiuiimage

[OcUI diary] UIImage and UIImageview, ocuiuiimage UIImage   1 // create a uiimage using the class method (the suffix can be omitted in png format) 2 UIImage * image1 = [UIImage imageNamed: @ "001"]; 3 // use the path to obtain the image 4 NSString *

Network Programming, windows Network Programming

Network Programming, windows Network Programming   So in order not to impede the running of the main thread, is it better to use the GCD thread for network download processing? The answer is no. Asynchronous APIs are strongly recommended for

IOS pragma mark usage

IOS pragma mark usage     Simply put, it is used to facilitate searching and navigation code. The following example shows how to quickly locate the code that I have already identified. # Pragma mark Life Cycle-(void) viewDidLoad {[super

Some open-source libraries and third-party components used in the iOS project.

Some open-source libraries and third-party components used in the iOS project.Some iOS open-source libraries and third-party components used in the iOS Project I would like to share some of the iOS open-source libraries and third-party components

IOS UITableView Section Footer Add button

IOS UITableView Section Footer Add button     When processing the UITableView table, we want to add a button at the bottom of the View. When you drag a UITableView, the button can be moved. Implement the following interface:     -(CGFloat)

Key-Value Coding (KVC) in IOS

Key-Value Coding (KVC) in IOS Kvc is an informal protocol that provides a mechanism to indirectly access the attributes of an object. Direct access to objects is implemented by calling the accessors method. kvc can directly access the properties of

Settings of iOS Tabbar

Settings of iOS Tabbar In fact, the customization of iOS Tabbar is very high, and we do not need to duplicate the wheel. Below are some common settings of tabbar collected by the author, I hope to help you. Set the selected color of tabbar The iOS7

IOS development-four types of UITableViewCell

IOS development-four types of UITableViewCell   - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ UITableViewCell *cell; switch (indexPath.row) { case 0: { cell

IOS time type conversion and various data types Conversion

IOS time type conversion and various data types Conversion In this article, we will share some data types and time-type conversion methods, with detailed comments. If you don't talk about them, go directly to the code.   /*** Time conversion part * /

String NSString in iOS

String NSString in iOSCreate a String object:NSstring * str1 = @ "hello world ";NSString * str = [[NSString alloc] initWithString: @ "hello world! "];NSString * str_1 = [[NSString alloc] initwithuf8string: "hello world"]; // converts a C string to

IOS domain name resolution

IOS domain name resolution How to resolve domain names in iOS   // Obtain the IP address (NSString *) getIPWithHostName :( const NSString *) hostName {const char * hostN = [hostName UTF8String]; struct hostent * phot; @ try {phot = gethostbyname (

Bag-like travel personal center drop-down top background to enlarge Gaussian blur effect, drop-down Gaussian

Bag-like travel personal center drop-down top background to enlarge Gaussian blur effect, drop-down Gaussian HeaderView. h //// HeaderView. h // breadlike travel personal center /// Created by wb145230@163.com on 15/5/14. // Copyright (c) 2015 wb1452

Basic knowledge of IOS development-navigation and basic knowledge of ios

Basic knowledge of IOS development-navigation and basic knowledge of ios   1: Basic knowledge of IOS development-fragment 1 A: interchange between NSString and NSInteger B: basic types cannot be stored in Objective-c integration. For example, int

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