IOS

The first day of IOS learning, and the first day of IOS Learning Originally engaged in. NET developers have been reluctant to switch to IOS. After complicated inner struggles, they finally have the courage to resign and study IOS. Now they have

IOS image stretching and ios stretching skillsIOS image stretching skills Throughout the mobile market, a mobile app, if you want to establish a foothold in the mobile market for a long time, must at least include the following elements: practical

These are some details of Apple's new Mac operating system. Apple announced the new OS x operating system OS X El Capitan at last week's global Developers Conference (WWDC). The new system has improved the functional details of some built-in

Beginner's Guide to Swift EventKit-request Permissions EventKit provides a series of classes for getting and Operating User calendar events and reminders. in the following tutorial, my goal is to lead you out of the first step of using EventKit to

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

FatSecret Platform API, fatsecretplatform At this stage, the catering APP is developing very fast, especially on campus. Students only need a cell phone to buy the food they want. However, if we want to complete an app independently, we need to have

IOS development-project knowledge sharing and experience accumulation (1), ios development Recently, when I was working on a project, I used Storyboard to adapt to the screen quickly. After adding constraints, I found a problem (this problem will be

Image processing code snippets to process code snippets1. image Scaling: code-(UIImage *) resizeImage :( UIImage *) image toWidth :( NSInteger) width height :( NSInteger) height {// Create a graphics context with the target size // On iOS 4 and

Strong vs copy, strongvs I. Preface here, I will introduce the differences between strong and copy (the address of the object printed by % p) through an instance ViewController. h #import @interface ViewController :

OC, Zhongshan oc   @ Interface Car: NSObject { @ Public Int _ wheels; Int _ speed; }   -(Void) run;   @ End   @ Implementation Car   -(Void) run { NSLog (@ "% d wheels, the car with the speed of % d is running", _ wheels, _ speed ); }   @ End   Void

IOS stage study 23rd days notes (XML data format Introduction), ios 23rd days Knowledge points of IOS Learning (oc language) 1. Introduction to XML data formats 1) concept: xml is an Extended markup language for extended extensible markup language.

IOS development and ios development tutorialCore Data Core Data is a framework that emerged after iOS5. It provides the object-relational ORM ing (ORM) function, that is, it can convert OC objects into Data and store them in SQLite database files,

[Learning notes] [OC language] Object-oriented Thinking, learning notes oc I. object-oriented and process-oriented ideasOC is object-oriented and C is process-oriented. Object-oriented and process-oriented are only two different ideas for solving

Differences between Create groups and Create folder references when Xcode introduces external files, xcodereferences 1. Using Create groups, we can manually add a Group in the project (right-click and choose New Group), but the manually added

Basic Network request, network request 1. Synchronize GET // 1. initialize the URL into an OC String object NSString *urlStr = [NSString stringWithFormat:@"%@?wewe=%@", @"111", @"222"]; // 2. If the URL contains Chinese characters, perform URLEncode

UIImageView comes with animations + N images to achieve dazzling animations, GitHub saw a Very dazzling Animation: https://github.com/MartinRGB/GiftCard-iOS looked at his code, found the core animation (is to wrap the button into a gift box) is

[Study Notes] [C Language] structure, Study Notes C Language 1. Three Methods for defining struct Variables1> first define the type, then define the variable (separate definition)Struct Student{Int age;};Struct Student stu; 2> define both types and

Daily notes (pointer) for IOS learning, daily ios Learning Knowledge Point sorting for IOS Learning (C language) I. pointer 1) concept: a variable that stores the address of a variable. 2) Data Storage Type Analysis 1. text (code segment): stores

Oc memory management mechanism and oc Memory Management I have always been familiar with the oc memory management mechanism. Today I read the official documentation to record it. I am relatively lazy. I am posting official documents here. //*********

Usage of the predicate (NSPredicate) in iOS: (1) basic usage   In iOS development, the system provides the NSPredicate class for us to perform some matching and filtering operations, which is very convenient. When this class is not used, we need to