IOS

Regexkitlite -- Regular Expression To extract specific content from a string or check the validity of the input, a regular expression is often used. Regexkitlite extends nsstring and supports regular expression search and replacement.

1. Use localizable. StringsOption + returnThe key combination inserts \ NAnd then load the string to uitextview to display the line feed. Nsstring * obtained after internationalization is converted to char *. The position of the line feed in char *

Sliding left and right to switch out menu or sub-interface is now increasingly used in a variety of mobile applications, such as Facebook. Today John's project on GitHub is used to implement this function first: In operation, you can click

I have been developing IOS for nearly two years and have written a lot.Code, Has done a lot of projects. I will share with you the architecture of the IOS application. This article is my opinion. If you have any concerns, please leave a message.

I. Sandbox)For security purposes, ApplicationsProgramYou can only write your data and preference settings to specific locations. When an application is installed on a device, the system creates a home directory for it, which is the sandbox of the

Original method: asyncimageview. h: #import @interface AsyncImageView : UIView{     NSURLConnection* connection;    NSMutableData* data;} - (void)loadImageFromURL:(NSURL*)url;@end Asyncimageview. M: #import "AsyncImageView.h"@

1. Starting with version 3.3 of the GNU Compiler Collection (GCC), make sureThe-fobj-exceptions flag is turned on; 2. The macros ns_during, ns_handler, and ns_endhandler Corresponding to @ try @ catch raise corresponding Throwthe exception macros

// Multi-core accelerated processing function // during the blocking period, a thread with the same number of processor cores is created to execute the callback function // For example, a dual-core will execute the following method // pfun (0, 2) //

How can we distinguish between single-finger and double-finger tap? Directly run the Code. If uikit is used, modify the function name. The following code is cocos2d. // Gametouches = [[nsmutableset alloc] init];-(void) cctouchesbegan :( nsset *)

Mbprogresshud -- Progress indication An elegant, translucent progress display. It also provides other additional functions, such as displaying complete information and fading out. Icarousel-- Page arrangement with cool results Pages with similar

IPhone program running process Main. M file, the main entry of the IOS Application The two parameters of the main function are command line parameters, which are not used in iOS development. These two parameters are used to be consistent with the

Various operation events will be encountered in iOS development, and these events can be responded through the program. First, when an event responds, you must know who will respond to the event. In iOS, the responder chain responds to events. All

In the previous article, we talked about uitouch and uievent events. In a brief review, uievent is a collection of uitouch and is responsible for responding to touch events in IOS. In addition, the concept of the responder chain is also mentioned.

The previous article introduced the basic principles and processing procedures of apns. After introducing the apns mechanism, let's take a look at how to integrate the apns service into our own project. First, log on to our apple developer

There are many ways to parse XML documents on the iOS platform. There are built-in parsing methods in the SDK, but in most cases, they tend to use third-party libraries, the reason is higher resolution efficiency, more convenient to use, on the iOS

1. The database must be supported. Mediaplayer. Framework 2. Code Mpmovieplayercontroller * mplayer = [[mpmovieplayercontroller alloc] init]; // video address local nsstring * Path = [[nsbundle mainbundle] pathforresource: @ "FILENAME" andtype:

Arranged in different order: 1. When performance encounters problems, if you can perform computing and processing at the application layer, take it out of the database layer. Sorting and grouping are typical examples. Performance improvement at the

//[ViewController writeWithFormat:@"1", @"2", @"3", nil]; + (void)__methodName__:(NSObject*)string, ... {// parms must be end with nil    va_list args;    va_start(args, string);    if(string) {        NSLog(@"Do something with First: %@", string);  

After ios4, audio can be played in the background. You can play the audio in the background in the following two steps. 1. In info. plist, add the "Required background Modes" key and set its value to "app plays audio" 2. Add the following two pieces

I recently read about the XMPP framework. Taking text chat as an example, the message to be sent is: helloWord In the base, from is the message sent from the user, to is the message sent to the user, XMPP users are in the form of mailbox. Body