IOS

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 *

========================================================== =============================== Original blog, for reprinting, please declare the source of e-coffee-Focus on mobile Internet ==================================== ============================

  Block helps us organize independent code segments and improve reusability and readability. Ios4 introduces this feature in uikit. Blocks are used for more than 100 Apple APIs, so this is a must-start knowledge. What is block? You can use^To

Events can appear on the iPhone in three main ways: Action, delegate event, and notification. The iPhone event response comes from the uiresponder object, while the iPhone notification comes from the nsicationicationcenter. You don't have to worry

In the development of iPhone or iPad, apart from touchesbegan /Touchesmoved/touchesended this set of methods to control the user's finger touch, you can also use the operator class of uigesturerecognizer to determine. The advantage of using

Http://lois.di-qual.net/blog/compile-tesseract-for-ios-sdk-6-0/click to open the link Update 10/25/12 Added instructions to integrate an armv7s slice inliblept.aAndlibtesseract_all.a.Update 09/24/12 To make the IOS integration easier, I made a

The pushing certificate for iOS has a validity period limit, generally one year. When the certificate expires, You need to regenerate the certificate. I haven't been on the Apple website for a while. I went up to check it yesterday. I changed it.

I haven't written anything for several months. Today I have time to write something about IOs (I found myself very unfocused, and I didn't do a good job in Android, and I switched to iOS again ). In my program, the function of getting the user's

If we need to automatically update the version of the app, we need to obtain the version information of the current running program and the latest version released in the appstore. The version information of the currently running program, which can

# Import @ Class myconnection; // download protocol @ protocol myconnectiondelegate // download completed-(void) myconnectiondidfinish :( myconnection *) con data :( nsdata *) data; // download failed-(void) myconnectiondidfail :( myconnection *)

Remote-control Users can use external interfaces to control application music. The official recommendation is to receive remote-control events when the view is displayed.   -(Void) viewdidappear :( bool) animated { [Super viewdidappear: animated]; [

Today, I encountered a problem in my project. A 1.7 billion number and a 0.6 billion number crossed the border ......, Then we found that the maximum value of the signed integer is 2.1 billion, and the maximum value of the unsigned integer is 4.2

Monkey original, reprinted. Reprinted Please note: Reprinted from cocos2d Development Network --cocos2dev.com, thank you! Original address: http://www.cocos2dev.com /? P = 281 Note: I have previously written about how to optimize the use of memory

In a previous study note, I recorded an article on how to implement Singleton in OC: IOS study note 4-Objective C-create Singleton introduced grand from AppleAfter Central Dispatch (GCD) (Mac OS 10.6 and ios4.0), a new method is available for

There are many ways to parse XML in IOS. Previously, I used gdataxml to parse XML files and explained how to use the XML parsing class provided by Google to parse XML files, today, we use another open-source project, kissxml, to parse XML files and

SQLite is a small and lightweight relational database. It is a good choice for mobile devices. Both Android and IOS have built-in SQLite databases. The current version is sqlite3. Using SQLite in IOS is especially troublesome if you use the methods

In development, the list loading function is often encountered. Most of the functions include image list loading, but the memory of mobile devices is limited, while loading a large number of images consumes a lot of memory. Today, we will introduce

In the previous article, we talked about how to transmit data over a Socket network. In fact, for Internet resources, we are more developed based on HTTP. simpleurlconnections shows how to transmit data over HTTP, this section mainly describes how

Cause Many people commented on some crash messages and asked me what happened to the program. In fact, if you know where the code crashed, it would be easy to locate the problem. Android Developers can see which line of code has a problem by

I have been doing J2EE development before, but I have not been familiar with objective-C for the first time. I think it is very strange about its syntax. After a week of study, I finally learned the objective-C syntax and started iOS development,