IOS usage accumulation-nsprocessinfo class

+ (Nsprocessinfo *) processinfo // return the information of the current process-(nsarray *) Arguments // return the parameters of the current process in the form of an nsstring object array-(nsdictionary *) environment // return the dictionary of

HTTP for iOS online playback

Recently, I have been studying the application of online playback, The main idea is 1. Knowledge about cfnetwork. framework is required for HTTP data download. 2. Learn about audio file stream service and audio queue service in audiotoolbox.

Get installed programs on iOS devices

There are three situations: 1. For devices after jailbreak, you can obtain the complete list, which is convenient. The method is as

Powerful UI modification tool in iOS 5-uiappearance

Ios5 provides a powerful tool, uiappearance, to easily unify your interface. It provides the following two methods: + (ID) Appearance + (ID) appearancewhencontainedin :( class <>)Containerclass ,... The first method is to unify all the changes. For

AR for iOS-getting started

1. Private API Add the header file: Extern "C" cgimageref uigetscreenimage (); Add when using: Cgimageref screenref = uigetscreenimage (); 2. Camera callback 1. Generate a capture session instance Ii. Implement

For iOS and XMPP, add friends and friends for Request Processing

Xmppstream * xmppstream; xmppreconnect * xmppreconnect; xmpproster * xmpproster; // user object // object to be added // Add friend # pragma mark and friend-(void) secret :( nsstring *) name {// xmpphost is the server name, host name xmppjid * jid =

Opencv for iOS Study Notes (6)-mark detection 3

Original address: opencv for iOS Study Notes (6)-mark detection 3 Precise marking position // Adjust the posture of the tag Based on the camera rotation. // marker: the captured tag STD: Rotate (marker. points. begin (), marker. points. begin () +

Opencv for iOS Study Notes (10)-mark detection Summary

Original address: opencv for iOS Study Notes (10)-mark detection Summary If you keep following our tutorial, you can run the program as follows: Even if we do not use a three-dimensional rendering engine for visualization, we have obtained all

Introduction and use of new APIs in iOS 5

Original address: introduction and use of new APIs in iOS 5 1. uistepper UIStepper *stepper = [[UIStepper alloc] initWithFrame:CGRectMake(200, 100, 0, 0)]; [stepper sizeToFit]; stepper.value = 0; stepper.minimumValue = 0;

IOS 6 Social application development-Sina Weibo

Original address: iOS 6 Social application development-Sina Weibo 1. Add framework. 2. Import the header file. #import #import 3. Make sure that the account for the social networking application is configured in "Settings" (take Sina Weibo as

Opencv for iOS study notes (8)-rendering ar scenario 1 with OpenGL

Original address: opencv for iOS study notes (8)-rendering ar scenario 1 with OpenGL Create an OpenGL rendering layer To use OpenGL functions in your application, you must add a drawing board for your application to present the rendered scenario to

IOS 6 Apple map application (mapkit)-built-in Development

Original address: iOS 6 Apple map application (mapkit)-built-in Development This article is a comment on the Apple case regiondefiner. # Import "viewcontroller. H "# import" myannotation. H "@ implementation viewcontroller-(void) viewdidload

Opencv for iOS Study Notes (2)-AR

Original address: opencv for iOS Study Notes (2)-AR Three elements of AR applications: 1. Video Source) Video sources primarily provide frames collected from built-in cameras. 2. processing pipeline (MPS Queue) The processing pipeline

Opencv for iOS Study Notes (7)-gesture marking Simulation

Original address: opencv for iOS Study Notes (7)-gesture marking Simulation Previously, we have obtained a precise marking corner point. We can simulate the transformation between the mark in the camera and the 3D space. In this process, we will

Opencv for iOS Study Notes (5)-mark Detection 2

Original address: opencv for iOS Study Notes (5)-mark Detection 2 Relevance search Void markerdetector: const extends svector & contours, STD: vector & detectedmarkers) {pointsvector approxcurve; // STD: vector possiblemarkers; /// possible

Opencv for iOS Study Notes (9)-rendering ar scenario 2 with OpenGL

Original address: opencv for iOS Study Notes (9)-rendering ar scenario 2 with OpenGL The operation procedure of drawframe is: 1. Clear the scenario. 2. Start the normal projection to draw the background. 3. Draw the last image obtained from the

IOS 6 Apple map app (mapkit)-open external app

Original address: iOS 6 Apple map app (mapkit)-open external app In iOS 6, Apple changed Google map to its own map, which looks good. : Lower than iOS 6 (Google map web) IOS 6 Implementation Code Predefine Declaration for importing and

Opencv for iOS Study Notes (4)-mark Detection 1

Original address: opencv for iOS Study Notes (4)-mark Detection 1 A simple tag is often a regular image consisting of a white block and a black block. Because we know these factors in advance, we can easily detect tags. First, we need to find the

Opencv for iOS Study Notes (3)-camera

Original address: opencv for iOS Study Notes (3)-camera Video capturing and Ar visualization are indispensable for augmented reality applications. In the video capture phase, frames are received from the camera and then transmitted to the

Common IOS code sorting

1. Change the background of the cell. UIView *cellView = [[UIView alloc] init];cellView.frame = CGRectMake(0, 0, 320, 44);cellView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"xxx.png"]];cell.selectedBackgroundView =

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