IOS

@ Interface uiview (extend) -(Uiviewcontroller *) viewcontroller; @ End   @ Implementation uiview (extend)   -(Uiviewcontroller *) viewcontroller { For (uiview * Next = [self superview]; next = next. superview ){ Uiresponder *

1.Why do we need to set the value to nil after a variable is release? After a variable is release, the memory to which the variable points is released, but the variable itself remains unchanged and still points to the original memory address. If

Uiview * view = [[uicontrol alloc] initwithframe: cgrectmake (50,200,150,150)]; View. backgroundcolor = [uicolor clearcolor]; [(Uicontrol *) view addtarget: Self action: @ selector (XXX) forcontrolevents: uicontroleventtouchupinside];

1. In the info. plist file, add 2. In viewcontroller. M, ----------- the Controller at the top layer @ Implementation uinavigationcontroller (autorotation)-(Bool) shouldautorotate {Return no; // disable Rotation}-(Nsuinteger)

OriginalArticle, Reprinted, please note:Reprinted from All-iPad.netLink:Unity + xcode3.2.6 + IOS sdk4.3   Sadly, the first failure to submit the app store was a failure.   The error report sent by Apple is displayedProgramIt crashes at

Original article: http://blog.csdn.net/liliangchw/article/details/8314181 Sandbox)For security purposes, applications can only write their own data and preference settings to specific locations. When an application is installed on a device, the

Http://wenku.baidu.com/view/96c9bbb265ce0508763213b0.html Myself xcode 4.4, + IOS 4.3.3 (itouch)/ios5.1.1 (PAD) For debugging the perfect real machine, please follow the above steps strictly. We recommend that you do not input the commands, copy

Original post address: http://blog.csdn.net/pjk1129/article/details/6855024 The MD5 encryption algorithm is implemented in the following categories: #import @interface NSString (md5)-(NSString *) md5HexDigest;@end#import

I recently downloaded an xcode_4.3.20.for_lion.dmg file. When I installed xcode, I always indicated that the installation failed. I checked it online and changed the Mac date to 2012.1.1. The first time I wrote the IOS program, the program was quite

  In order to help IOS developers better understand and learn development technologies, build a platform for csdn bloggers to exchange and share technologies, and provide an active community atmosphere, csdn blog channel joins hands with csdn blog

Recently, my book has been printed. I did not expect the signed shoes to meet the three-digit conference. Thank you for your support and encouragement as always. Today, I will introduce you to the three details of cocos2d development; first, we will

When using third-party sdks, you can often compile your classes into static libraries. you can hide your private information, such as private APIs and apikey, when provided to developers; Compile the open-source jsonkit class library into a static

I accidentally saw an infinitely interconnected iOS development video tutorial when I checked the information. It was a good resource and shared it with IOS developers; The resource comes from the lazy IOS code library -www.lanrenios.com Video

In the open-source Chinese client, whether it is a comprehensive article, a question in the Q & A, or a moving talk, each article will be followed by a comment with time, for example, "10 minutes ago", "2 hours ago", "5 days ago", or "-2-9", these

In the development process of a project, the pull-down refresh and update data are often used for better experience. Of course, there are also some situations where more data is loaded by pulling up; currently, the popular egotableviewpullrefresh

IPhoneOfUitableviewCode for pagination Uitableview can display a lot of content in the list, which is also a common component in our development. We usually display the list by page, for example, display 10 first.Click more to add 10 records, and

Follow these steps: 1. Create a cocoa touch static library (this won't happen, I believe everyone will) 2. Delete the target 3. Select File-new-target from the xcode menu, and then select Note: No Bundel exists in the options of the IOS project,

# Import -(Void) getimgs { Dispatch_async (dispatch_get_main_queue (), ^ { NSAID utoreleasepool * Pool = [[NSAID utoreleasepoolalloc]Init]; Alassetslibraryaccessfailureblock failureblock = ^ (nserror * myerror ){ Nslog (@ "album Access failed =

1 PrefaceThe datawithjsonobject: Options: Error: Method of the nsjsonserialization class is used for implementation. array and dictionary are serialized into JSON objects. It facilitates transmission over the network. 2. code exampleTestdemo.

Core animations are designed with performance considerations. First, it is hierarchical presentation and is designed to run on small devices (iPhone and itouch). These devices have limited memory and the CPU and GPU are not as powerful as those on