Objective, objectivec

Objective, objectivec Objective-C Memory Management Part 1 Memory management is part of a more general problem in programming called resource management. Memory Management is part of resource management. Every computer system has finite resources

IOS memory management and ios Memory Management

IOS memory management and ios Memory Management The memory resources of the device are allocated and used when the software is running. Therefore, memory management is required during software development to ensure efficient and fast memory

Ios graph lock HQ application project source code and ioshq project source code

Ios graph lock HQ application project source code and ioshq project source code "Graph lock HQ" is a super safe for image customization!-Ensure the security of image 100%!-Use lossless compression algorithms to compress images and save space.-Use a

KVC vs KVO (the content is reposted and summarized by everyone), kvckvo

KVC vs KVO (the content is reposted and summarized by everyone), kvckvo KVC is the abbreviation of key-value coding, KVO is the abbreviation of key-value observing. If you need to master the Key-Value Observing mechanism, you need to read this

Singleton, Singleton Mode

Singleton, Singleton Mode # Import @ interface Student: NSObject @ property (retain, nonatomic) NSString * name; @ property (assign, nonatomic) int age; // design the standalone mode // + (class name *) shareXXX // defaultXXX // xxx + (Student *)

Manual adaptation of iOS code-only

Manual adaptation of iOS code-only First, let's talk about how to make your program support iPhone6 and 6 +. First, use the launch screen officially provided. xib, which can be viewed in the official documentation. The second method is similar to

Color gradient for ios 2D plotting

Color gradient for ios 2D plottingColor gradient for ios 2D plottingColor Space cmyk Printing Industry RGB gradient color: linear gradient, ring gradient linear gradient: the gradient area is the current context, perpendicular to startPoint

Message forwarding in iOS

Message forwarding in iOS   Well, running is a good thing. In Objective-C, this feature can help us do a lot of things. First, this feature changes code decisions from compilation and linking to running, so that we can use this feature to do

IOS gesture sliding between left and right

IOS gesture sliding between left and right 1. Add two gesture properties in "ViewController. h.  ? 1 2 @property (nonatomic, strong) UISwipeGestureRecognizer *leftSwipeGestureRecognizer; @property (nonatomic, strong)

Shortcuts for Xcode IOS development environment

Shortcuts for Xcode IOS development environment Shortcut Key Edit File CMD + N: New file; CMD + SHIFT + N: new project; CMD + O: open; CMD + S: Save; CMD + SHIFT + S: Save; CMD + W: Close the window; CMD + SHIFT + W: Close the file Edit CMD +

Text Box in UITableView blocked by iOS Soft Keyboard

Text Box in UITableView blocked by iOS Soft Keyboard 1. RegistrationUIKeyboardDidShowNotification/UIKeyboardDidHideNotification notification. -(Id) initWithNibName :( NSString *) nibNameOrNil bundle: nibBundleOrNil {if (self = [super initWithNibName:

Coordinate issues in iOS Game templates

Coordinate issues in iOS Game templates IOS Game usually has a horizontal screen, so what will happen when the screen is vertical. The cup has occurred, and the coordinates have encountered problems. When the horizontal screen is displayed, the

How to Learn about IOS

How to Learn about IOS A colleague asked me how I learned about IOS. I don't necessarily have code for products ~ Sorry, yes, we don't need to. But if we do, we can better communicate with programmers. At least we can understand the same language. I

IOS Game template collision detection details

IOS Game template collision detection details We will set the physical body for collision detection (we call this physical body xx below) Xx. physicsBody = SKPhysicsBody (rectangleOfSize: CGSize (x: 100, y: 100 )) Then set an identifier for the

IOS animation-ViewAnimations

IOS animation-ViewAnimations The animation API in UIKit includes: UIView. UIView. animateWithDuration UIView. transitionWithView UIView. animateKeyframesWithDuration UIView. addKeyframeWithRelativeStartTime Today's story will focus on these APIs and

IOS animation-what? Can AutoLayout still perform animation?

IOS animation-what? Can AutoLayout still perform animation? Yes. It is clear that AutoLayout can indeed be used as an animation. AutoLayout is used to make various constraints and adapt to different screens. When we change some of these constraints

IOS development: How to take screenshots and how to merge multiple images...

How to integrate and multiple images in iOS development... 1. UIView -(UIImage *) captureView :( UIView *) theView { CGRect rect = theView. frame; If ([theView isKindOfClass: [UIScrollView class]) { Rect. size = (UIScrollView *) theView).

Objective, objectivec

Objective, objectivec   Objective-c Chapter 1 Hello world 1.1 1.2.On the Welcome screen, click "Create a new Xcode project" (see Figure 2-1), or just chooseFile-> New Project.   1. 3. Write the following code in main   #import int main(int argc,

Add a shortcut menu gesture and view gesture to the view.

Add a shortcut menu gesture and view gesture to the view. After iOS7, the shortcut menu will be slide from the bottom of the screen. I feel that this effect is good and I want to make a similar effect. This item is not highly technical, writing

UIView-layer method, uiview-Layer

UIView-layer method, uiview-Layer //// ViewController. m // UIView-layer concept /// Created by wangtouwang on 15/5/5. // Copyright (c) 2015 wangtouwang. all rights reserved. // # import "ViewController. h "@ interface ViewController () @ property

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