IOS

[Study Notes] [C Language] array, Study Notes Array1. What is an array? Array, literally, it means a group of data. Yes, arrays are used to store a group of data.2. array features Only one type of data can be stored, such as an array of the int type

Default height of various iOS controls, default height of various iOS controls1. Status BarThe status bar is generally 20 pixels in height. It will be enlarged to 40 pixels in height when you make a mobile phone call or display a message. Note that

Public attributes and extended attributes of IOS UILabel Preface During IOS development, UILabel is a commonly used control and a frequently used control. Generally, five or six sentences of code are required to create a UILabel. If we need to

Objective-C Variable Parameter Function implementation, objective-c variable1. Preface I believe that those who have been familiar with OC are familiar with NSLog. By carefully checking the original definition of NSLog, we will find that its

IOS push (Baidu push) I am using push recently, so I 'd like to share with you my problems and solutions !! 1. First generate the CertificateSigningRequest file. Click the access key string --> request a certificate from the Certificate Authority -->

[Oc learning diary] dictionary and oc learning diary dictionary 1 // create a dictionary 2 NSDictionary * d1 = [NSDictionary dictionary]; 3 // set the content of the created dictionary to the content of the specified file 4 NSString * path = @ ""; //

IOS checks whether the file in the specified path exists. This article will share with you how to check whether a specified file exists in IOS development. Four methods are provided for you, which are very practical. You can choose your preferred

Meanings of keywords such as assign, copy, and retain in iOS Assign: simple assignment without changing the index countCopy: Create an object with an index count of 1 and release the old object.Retain: Release the old object, assign the value of the

Edit UITableView table view and uitableviewUITableViewController (Table view Controller) is inherited from UIViewController and comes with a tableViewself. view instead of UIView, but UITableViewdatasource and delegate. By default, you only need to

IOS app loading process (from clicking the icon to display on the page) Today, when I helped my colleagues solve the problem, I found that the cause of the program BUG was that my colleagues were not familiar with the process of starting and trying

Convert a dictionary into a model object in IOS and a dictionary model in ios. As a beginner in IOS development, I learned how to convert plist data dictionary into an array of data objects. It is a bit like the process of parsing xml data in C. The

Automatic instance login for iPhone application development The Automatic Login instance operation for iPhone application development is described in this article. The main content is the instance for automatic login. Let's take a look at the

(Switch) how to remove some type of warning in Xcode project Implicit conversion loses integer precision: 'nsinteger '(aka 'long') to 'int32, implicitconversionProblem description in our project, we usually use a large number of third-party code,

IOS learning path-pull-down refresh and pull-up loading more, ios pathIOS learning path-pull-down refresh and pull-up loading In this article, I will share with you the pull-down refresh and pull-up methods to load more functions commonly used in

IOS Error :( Error): ImageIO: png idat: invalid stored block lengths Solution:   1. Read the image data and call the method in step 2 for verification. NSData * data = [NSData dataWithContentsOfFile: imagePath]; 2. Determine whether a PNG image

IOS online audio playback FreeStreamer Preface:AboveIn iOS recording practices, we useAVAudioPlayer to play a local audio file. However, in practical applications, we need to play network audio files,In iOS, how does one play network streaming media?

(8/18) re-learn Standford_iOS7 development _ protocol, block, animation _ course notes, ios7 Layer Protocol Lesson 8: 1. Agreement Another method of Security Processing id type is: id obj A. Statement // Protocols are generally stored in. in the H

[Study Notes] the inclusion of the [C Language] file and the C language of study notes I. Basic Concepts # Include, which can copy all the content of one file to another. II. General Form 1. 1st forms # include Go to the directory where the function

[Study Notes] [C Language] functions of static and extern, staticextern If a program contains multiple source files (. c), multiple target files (. obj), these target files cannot be run independently, because these target files may be associated,

IOS animation programming 1-affine transformation In essence, affine transformation is a matrix transformation that can be used for operations such as translation, scaling, and rotation. These operations can be encapsulated into animations.   1.