IOS

IOS development-common Xcode shortcuts Among all the shortcuts in Xcode 6, the following should be learned first. After you learn how to use them, you may not need them anymore. Xcode navigation shortcut 1. Project Navigator: Command + 1 Allows you

IOS development-log printing (common) Q: How do I print the current function and row number? A: Some pre-compiled macros can be used as printing parameters to print the current function and row number. For example: NSLog(@"%s:%d obj=%@", __func__, __

Magical record (based on coredata) for ios data persistence) After seeing magical record, I tried it and found it useful, Magic Record is an open-source class library written by Saul Mora to make Core Data easier to use. The development of this

IOS development-click UITextField to bring up the UIDatePicker Protocol Implementation Method UITextField is a control used to accept user input. Its advantage is that it is flexible and users can enter it at will, but sometimes this is also its

[IOS UI advanced, iosui advancedA. Some details about Quiartz2D1. The UIKit tool has encapsulated context references, so you do not need to manually obtain and render them. 1 - (void)drawRect:(CGRect)rect {2 [[UIColor redColor] set];3

IOS development-image search (source code + resolution) The image search function is quite practical. When I implemented this function, I had some notes. Today I will integrate them into blog posts and share them with you.   The main functions of

[IOS] UIApplicationMain After a new swift project is created, it is found that the project structure is very simple and there is no. pch file or. main file, Naturally, you won't find the main function entry, and you have no clue about the app

IOS-how do I parse the IP address (sockaddr * Resolution) from Boujour )?, Boujoursockaddr1. PrefaceSome netizens left me a message saying: How do I parse the IP address from the array parsed by Boujour? Because the addresses after the Boujour

IOS block usage Recently, I encountered a problem in the course of learning. The whole project uses UINavigationController as the root controller. A table tries to use the custom UITableViewCell controller, which has several custom buttons, when you

Stupid debugging 1. Stupid debugging Just yesterday, an iOS app used by the company was released through the Enterprise id because no problems were found during debugging on the real machine. Directly replaces the online files. However, after

[Basic iOS control and basic ios ControlA. Create A controllerCommon methods for creating controllers are as follows:Create on storyboardCreate directly 1 ViewController *vc = [[ViewController alloc] init];After the class is set for xib, when the

IOS work notes (1), ios work notes Note: I recorded some trivial things of learning IOS, some of which seem very naive now, but I can leave it alone! 1. The xib development ipad uses a landscape screen. You can set orientation to landscape in the

IOS commandid-°» Öç° Ó Ð ×öò» Ö ö¶ ¨ λ µä~~ä~£;{à Ë {{{{^^^' {{µäço ¡£ ********************************************************************* ~ À mañañáñá ° ~~%********%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% please refer to the following

UIAlertController of iOS8 developed by iOS8 Before iOS8, use UIActionSheet and UIAlertView to provide button selection and prompt information. For example, you can write UIActionSheet as follows: UIActionSheet * actionSheet = [[UIActionSheet alloc]

IOS file path File Path-related methods are mainly used in NSPathUtilities. Obtain a path NSString * documents = [NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex: 0]; // obtain the Document path//---~~~

[Basic iOS control and basic ios ControlA. Concept1. the UIApplication object is a symbol of an application. Each application has 2. singleton 3. [UIApplication sharedApplication] Get 4. the first object created at iOS startup 5. use UIApplication

C language for iOS sqlite I took a look at sqlite knowledge on Saturday and recorded it here. A video of Chuanzhi podcast The data operation is basically adding, deleting, modifying, and querying: Static sqlite3 * db; // declare a Database @

Comparison of loading network images for IOS // 1. NSData dataWithContentsOfURL // [self. icon setImage: [UIImage imageWithData: [NSData dataWithContentsOfURL: tempUrl]; // 2. add to asynchronous processing in the form of dispath // [self

IOS tips-set the background color for buttons in different StatesWe know that setting the button's background color in Storyboard cannot be changed according to different States. The problem arises, what if we want the button to display a different

Use of ScrollView, and scrollview 1. UIScrollView has two sub-classes: uitextview and uitableview. These two controls are frequently used. Therefore, it is necessary to master their usage. They provide horizontal or vertical scroll bars when the