IOS

We usually need to add some buttons on the ios ui. And these buttons. Currently, these buttons are more inclined to be added to the top of the UI, such   How to do this:   First, uinavigationbar inherits from uiview. To add a button, you must

IOS developers can achieve screen rotation in two ways; 1. LoadShouldautorotate andShouldautorotatetointerfaceorientation two methods, of course, there is a difference between ios6 and the previous version. For details, see "ios6 screen rotation

Keep an object and create a "strong" reference to this object. An object can be recycled only when all its strong references are released. Therefore, the lifecycle of an object depends on its strongly referenced owner. In some cases, such behavior

In iPhone 4 Development, you can use -(Void) presentmodalviewcontroller :( uiviewcontroller *)ModalviewcontrollerAnimated :( bool)Animated [Self presentmodalviewcontroller: animated: ] Method To switch By -(Void)

Select an image and display it. -(Void) showpicker {uiimagepickercontroller * picker = [[uiimagepickercontroller alloc] init]; picker. sourcetype = uiimagepickercontrollersourcetypephotolibrary; picker. delegate = self; [self

Purpose Learn how to create and switch a view Environment Mac OS X 10.7.2 Xcode4.2 Details Create another viewcontroller In the storyboard and use segue to switch Add another viewcontroller to the storyboard. Add a button to

Every time Apple releases a system, developers are busy working for a while, updating xcode to adapt to the new system: for example, ios4 supports the graph that retina needs @ 2x; for example, ios5 does not support udid; for example, iOS 6 and

In the previous IOS programming-touch event processing (1), I learned how to handle touch events, events, and contacts. The first object to be touched is the view, and the uiview class of the view inherits the uirespnder class. However, to process

The iPhone/iPad keyboard-less design is to win more display space for the screen. The large screen provides a better user experience in viewing pictures, text, and videos. The touch screen is the main method for iOS devices to accept user input,

Disclaimer: the original articles of this blog are all personal originals and are copyrighted. For more information, see http://blog.csdn.net/ml3947. for more information, visit http://www.wjfxgame.com. At present, I got an exciting message that

Obtain Supported languages NSUserDefaults *defaults = [ NSUserDefaults standardUserDefaults ]; // Set nsarray * versions ages = [defaults objectforkey: @ "applelanguages"] in all languages supported by the iPhone. NSLog ( @"%@" , languages); Run

ReprintedThe last step of the release test is archive. The xcode4 help document provides a detailed description, but it is incorrect. 1. Set "build Settings"It's an official document. Pay attention to the red box and say the opposite. "Skip

Nsstring * STR = [devicetokenDescription]; Hfalert (STR ); // Convertthe token to a hex string and make sure it's all caps Nsmutablestring * tokenstring = [nsmutablestringStringwithstring: [[devicetoken description]Uppercasestring]; [Tokenstring

Scan WiFi information:Http://code.google.com/p/uwecaugmentedrealityproject/Http://code.google.com/p/iphone-wireless/Barcode scanning:Http://zbar.sourceforge.net/iphone/sdkdoc/install.htmlTCP/IP communication

Xcode 4.2 weakens XIB and uses storyboard. I used XIB to explain the online and purchased tutorials. I wrote a helloworld program. 1. Build a project Select application under Ios to create an empty application project (Change project to 4.3 Project

Yesterday I used delphixe2 to write two IOS applications, one of which is 3D. Unfortunately, my iPhone is 3g, and the 3D one requires GPU support and is not running. But the HD still runs quite well. I have been using xcode for more than a year.

2. What is the memory management mechanism? Cocoa provides a mechanism to implement the logic model mentioned above. It is called "referring counting" or "retain counting ): 3. What are the meanings and usage of minus signs and plus signs in objc? ①

Asihttprequest: http://allseeing-i.com/ASIHTTPRequest/Asihttprequest is an open-source encapsulated class library package for accessing Web services through the cfnetwork API. Data can be submitted and returned, request and response header

From: http://wangjun.easymorse.com /? P = 1301 Set Time Zone conversion for iOS   Sometimes, in order to unify the time in the system, the time zone that needs to be exchanged between the server and the client, for example, using GMT.The code for

From: http://www.cocoachina.com/iphonedev/toolthain/2011/1118/3538.html I used asihttprequest, an open-source network library, to read proxy settings. So I found the method for reading proxy settings in the source code. I have extracted the Code: