Deep and light copy in objective-c, and objective-c copy

Deep and light copy in objective-c, and objective-c copy Shallow copy: only copies the pointer to the object, instead of copying the reference object itself. Counter + 1, like retain Deep replication: Copies the referenced object itself. The counter

IOS shake function, ios Function

IOS shake function, ios Function The effect is as follows: Related Materials   The related code is as follows: # Import "ShakeViewController. h "# import # import # define kScreenWidth [UIScreen mainScreen]. bounds. size. width # define

[Code Note] image gesture, upload photo, and gesture upload photo

[Code Note] image gesture, upload photo, and gesture upload photo Code: RootViewController. h #import @interface RootViewController : UIViewController{ UIImageView *imageView;}@end   RootViewController. m # Import "RootViewController. h "@

My first blog: [ToDoList] applet development, the first todolist

My first blog: [ToDoList] applet development, the first todolist I am a senior dog. This is my first blog. In May January this year, during the winter vacation, the school started to learn about IOS. During the holiday, the school started to work

UIScrollView: 1. uiscrollview:

UIScrollView: 1. uiscrollview: Now, basically every commercial APP has a circular scroll view, where some carousel advertisements and the like are placed on UIScrollView. If I want to implement N images carousel, I have used several blog posts to

IOS learning keyboard type: UIKeyboardType and iosuikeyboardtype

IOS learning keyboard type: UIKeyboardType and iosuikeyboardtype The UITextField Keyboard can be customized, which is used in a code. There is a keyboardType attribute in UITextField. Its type is an enumerated value. below is the enumerated value

Send Response links for iOS events and send responses for ios events

Send Response links for iOS events and send responses for ios events When loading in iOS, the main function is executed first. int main(int argc, char * argv[]) { @autoreleasepool { return UIApplicationMain(argc, argv, nil,

IOS learning and ios development

IOS learning and ios development // Draw the dotted line-(void) set {UIImageView * imageView = [[UIImageView alloc] initWithFrame: CGRectMake (10,100,320, 20)]; [self. view addSubview: imageView]; // create a bitmap-based context, which is the size

Differences between OC and Swift 3 (Condition Statement): ocswift Condition Statement

Differences between OC and Swift 3 (Condition Statement): ocswift Condition Statement 11. switch structure in swift Difference 1: The switch condition in oc can only be an integer. The switch condition in swift can be set to almost any data

[Code Note] generates a solid color image by color,

[Code Note] generates a solid color image by color, I ,. Ii. Code. RootViewController. m -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. UIImageView * imageView = [[UIImageView alloc] initWithFrame:

Detailed explanation of iOS development photo framework and ios photo framework

Detailed explanation of iOS development photo framework and ios photo frameworkI. Summary Photos and videos are a very important part of iOS devices. Recently, I just made a custom iOS image selector. By the way, I sorted out how to use the photo

IOS encapsulation button, ios encapsulation button

IOS encapsulation button, ios encapsulation button Add button # Pragma mark Add button-(void) addButtonWithImage :( NSString *) image highImage :( NSString *) highImage disableImage :( NSString *) disableImage frame :( CGRect) frame tag :(

NSAttributedString (Rich Text) and nsattributedstring for iOS Learning

NSAttributedString (Rich Text) and nsattributedstring for iOS Learning NSAttributedString is a string with attributes. It can easily show different fonts, font sizes, and font sizes in a string, you can also format paragraphs. Generally, you can

IOS tips (Continuous updates) and ios tips

IOS tips (Continuous updates) and ios tips   1. How to set the font size of the Button title through code Set Button. titleLabel. font = [UIFont systemFontOfSize: ];   2. Get the current time NSDate *timeDate=[NSDate date];

Introduction to iOS event processing-UIResponder, iosuiresponder

Introduction to iOS event processing-UIResponder, iosuiresponder When a user uses an app, various events are generated. Events in iOS can be divided into three types: Touch events, accelerator events, and remote control events. In iOS, not all

The TabBar function at the bottom of the main program is displayed on the logon page.

The TabBar function at the bottom of the main program is displayed on the logon page. 1: implement the TabBar function at the bottom of the main program :   The main code is as follows: -(UITabBarController *) setRootVC :( BOOL) bShowCart {// create

Recursively searches for repeated text in NSString and recursively searches nsstring

Recursively searches for repeated text in NSString and recursively searches nsstring Recursive search for repeated text in NSString   Effect   Source code StringRange project in https://github.com/YouXianMing/iOS-Project-Examples /// NSString +

IOS-NSAttributedString, nsattributedstring

IOS-NSAttributedString, nsattributedstring 1. Introduction to NSAttributeString NSAttributedString is a string with attributes. It can easily show different fonts, font sizes, and font sizes in a string, you can also format a paragraph. Ii.

Xcode custom code block, xcode custom

Xcode custom code block, xcode custom Only now can I find that Xcode has such a magical function as a custom code block, which can simplify a lot of boring work on repetitive code. How can I know !!! For specific setup procedures see:

Socket for iOS learning, iossocket

Socket for iOS learning, iossocket Socket definition in Baidu encyclopedia Two programs on the network exchange data through a two-way communication connection. one end of the connection is called a socket. Description The original meaning of Socket

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