IOS

IOS Singleton destruction   1. For the implementation of Singleton, see a previous article titled iOS Singleton quick implementation.     static InstanceClass *instance;

Ios nsflood scans strings to obtain the desired strings For example, extract a number from a string. -(Int) findNumFromStr{NSString * originalString = @ a1b2c3d4e5f6g7h8i9j;// IntermediateNSMutableString * numberString = [[NSMutableString alloc]

Memory partition, c memory Partition Memory has five areas From high address to low address: Stack, stack, BBS segment, data segment, and code segment Tip: Stack and heap are allocated at runtime, while BBS segments, data segments, and code

Record the methods for identifying regular jailbreak and regular jailbreak Apple attaches great importance to product security, so it designs a complex security mechanism for users. This makes freedom-loving and open-minded programmers extremely

Static and extern, staticextern Static and extern modifier local variables Static modifier local variables: Purpose: 1) the scope of static variables will be extended. 2) statements defining static variables are executed only once. Extern cannot

IOS_GET _ network request Synchronous get request # Pragma mark-synchronous get request-(IBAction) GETSynButtonDidClicked :( UIButton *) sender {// 1. The URL must contain http: // NSString * urlString = @

Basic knowledge of IOS development-fragment 19, basic knowledge of ios-Fragment   1: keyboard Event Sequence UIKeyboardWillShowNotification // UIKeyboardDidShowNotification before the keyboard is displayed // UIKeyboardWillHideNotification after the

The single-choice control style in swift UITableViewCell and uitableviewcell I found the materials for one night on the internet yesterday, but most of them use the OC syntax. There are too few swift documents, which makes it hard for me to get

Simulating volume vibration bar in iOS AnimationVolume vibration bar: If yes? Create three layers and play the y-axis scaling animation in sequence.Using CAReplicatorLayer 1. What is CAReplicatorLayer? A layer that can copy its own child layer. The

Design and Implementation of IPad for iOS development //// main.m// 6-ipad//#import #import Ipad.hint main(int argc, const char * argv[]){ Ipad * ipad = [Ipad new]; ipad->_color = IpadColorBlack; ipad->_size = 7.9;

The source code project of the IOS app purchased by the cloud with a high imitation dollar, and the ios app with a high imitation High imitation one-dollar cloud purchase IOS app (high imitation from one-dollar cloud purchase Android client) This

IOS string truncation removes the content included in parentheses in the string   // Remove the position enclosed in parentheses-(NSString *) handleStringWithString :( NSString *) str {NSMutableString * muStr = [NSMutableString stringWithString:

IOS Development --- drawingDrawing operations In iOS development, the system has provided us with powerful controls, but many of them cannot meet our needs. At this time, we need to customize some beautiful controls. The knowledge used is the

Detailed description of MVC and MVVM modes in iOS developmentIn iOS, Model-View-Controller divides software systems into three parts: Model, View, and Controller.Model: What is your application essentially (but not how it is displayed) Controller:

Ios development and design cinema Film. h   # Import Enum selectWatchFilmTime {selectWatchFilmTimeMonday, // used to record the viewing time Monday watch selectWatchFilmTimeThesday, // used to record the viewing time on Tuesday watch hour, //

IOS design mode: Workshop ModeIOS design mode: Workshop Mode1 What is the factory model: Define an interface for creating objects in the base class, and let the subclass decide the class to be actually listed. The factory method delays the real

Custom color returned buttons for the navigation bar title generated by default in ios development 1. Modify the navigation bar color The page where the code of the navigation bar is stored Self. navigationController. navigationBar. tintColor =

Ios: Modify the background color of NavigationController     During ios development, we often need to modify the background color of NavigationController. When using [self. navigationController. when navigationBar setBackgroundColor: [UIColor

IOS-entire process of event processing (Supplement)Complete process of event processing 1> first pass the event object from top to bottom (the parent control is passed to the Child control) and find the most appropriate control to process the event.

IOS KVC (Key-Value Coding)Common usage: Getting valuesValueForKey: valueForKeyPath based on the property name:[Person valueForKeyPath: @ "car. price"]) ValueForUndefinedKey throws an exception by default. You can rewrite this function for error