IOS

[Study Notes] [C Language] type specifier, Study Notes C Language1. short and long 3. Code   1 # include 2/* 3 int 4 bytes % d 4 short 2 bytes % d 5 long 8 bytes % ld 6 long 8 bytes % lld 7 8 9 signed10 unsigned % u11 */12 int main () 13 {14 // 0000

[Study Notes] [C Language] memory Analysis of variables, learning notes C language Variables The memory in the computer isBytesThe unit of storage space. Each byte in the memory has a unique ID, which is calledAddress. As if the hotel is based on

IOS automatic script packaging tool webfrogs/xcode_shell In ios development, packaging via xcode is not very efficient, so someone wrote a series of convenient services such as automatic packaging, sending emails, and so on using shell.

The simple implementation of sending probe logs to the chinemo log system by iOS   By referring to Testin's SDK implementation method, we can roughly determine the implementation method behind them:   First, load the Testin SDK, then collect

IOS development-custom city selector (province + city + district/county) (storyboard version) and iosstoryboard Step 1: create a single project CitySelectedDemo Step 2: import the resource area. plist (check the copy option and add the area. plist

IOS-get the Controller of the current viewObtains the TopViewController of the current view. AppDelegate *appdelegate = (AppDelegate *)[UIApplication sharedApplication].delegate; UIViewController* topViewController =

Data Monitoring during IOS Network Program Development When developing network programs, we can intuitively see the data exchange, which is very convenient for development. Here we provide several methods:1. virtual Network Card 1. Create an RVI

Enable System camera flash for IOS Today, I will share with you how to call the iphone camera function and turn on the flash. I don't quite understand some code, and many of them learn from others on the Internet. IOS has two ways to take photos and

IOS Programming UIWebView 2, iosuiwebview IOS Programming UIWebView 1 Instances of UIWebView render web content. UIWebView can display web content. In fact, the Safari application on your device uses a UIWebView to render its web content. In fact,

Ios controls the trigger frequency of button click events This problem is often encountered in projects: When a button is clicked, a corresponding click event is triggered. For example, a network request is sent to the server or a pop-up dialog box

IOS MJRefresh pull-down refresh pull-up and load (you can add a gif) Summary 1. First download the latest MJ refresh library on github. Download the MJ Link     2. Add related code to tableVIew _ TableView = [[UITableView alloc] initWithFrame:

IOS 8 UI layout AutoLayout and SizeClass (2)1. Introduction to new features Size Class With the release of the iOS8 system, a new page UI Layout Concept emerged. This new feature will subvert the UI layout methods of iOS7 and earlier versions. This

[Learning notes] [C Language] typedef, learning notes typedef 1. Concept We can use the typedef keyword to define a new name (alias) for various data types ). 2. Role: Create a new name for an existing type 3. Application scenarios:1> Basic Data

IOS development-use Storyboard for page Jump and value passing Apple officially recommends that we build all the UIS using Storyboard, which is also a mature tool. Using Storyboard to build all interfaces, we can quickly build complex interfaces,

[IOS] several questions about video direction and ios I. Rotation metadata in MOV/MP4 video filesThe mov/mp4 video recorded by the built-in camera app on iOS may produce a Rotation metadata, which indicates how many angles the camera rotates during

Changes to an attribute of the iOS monitoring control: observeValueForKeyPath, valueforkeypath   Create a test UIButton # Import "ViewController. h "@ interface ViewController () @ property (nonatomic, strong) UIButton * button; @ end @

IOS learning notes (string operations)I. String operations 1) storage of strings, character arrays, and applying for memory space in the heap. Instance code: # Include # include int main () {char str [100] = "hello world"; char * p = "hello world";

Take notes for the tenth day of IOS Learning (string operation), and take notes for the tenth day of ios Knowledge Point sorting for IOS Learning (C language) I. String operations 1) string storage, character array, applying for memory space in the

Floating Point Number processing and removing excess 0, floating point number Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSLog (@ "-- float-% @-", [self

[Study Notes] [C Language] string array, learning notes String Array 1. application scenarios* A one-dimensional character array stores a string, for example, a char name [20] = "mj"* To store multiple strings, such as the names of all students in a