IOS

Ios uses the camera to retrieve specific data. The text is too small. You can use the command '+' to increase the font size.Note: Due to recent project requirements, you need a function that can obtain part of the content from the camera image,

Student *stu = [stu setAge:= ; IndirectModify Object Attributes ValueForKey:AndSetValue: ForKey:Send messages to objects in string Mode   ******************************** age; 　　　　@property (nonatomic,copy) NSString *name; @property

Preface The object-oriented design idea is to encapsulate behavior methods into every object to increase code reusability. It is such a decentralized encapsulation that adds the mutual association between objects. There are always many objects that

Before ios5, you can get it by reading the configuration file. After ios5, Apple will modify the location of the wifi list file. Only the root permission can be read. Ios4:/System/Library/SystemConfiguration/WiFiManager.

Today, I plan to summarize the network section in iOS development. NSURLConnection is the easiest way to access the network, but has the least functions. Therefore, only simple network access is required; Using NSURLConnection to access the network

This is an example of a drop-down list when you click a button. : Http://pan.baidu.com/s/1o62mYJg http://download.csdn.net/detail/qqmcy/7100541 The following code is used: VcD4KPHA + expires/expires + cve-vcd4kpha + PC9wPgo8cD48L3A +

The following code is used to record the selected rows when you click a row in the selected tableview. When you scan and delete a row on the left, it deletes the row of data and updates the data in Uitableview. @interface DummyTableViewController :

You can use hidesBottomBarWhenPushed to hide a page. Step 1: We need some images: The icons of each option and the background image of tabbar are also a transparent 1x1 pixel image. Step 2: Create a project and create a class in the project that

In iOS apps, interaction design is always the focus. Choosing a proper color scheme for the user interface is not only important to the overall appearance of the app, but also to the improvement of user experience. However, in iOS development, color

1. Certificate . As shown in, the related public key and private key are stored in the login of your Mac keychain, and the certificate contains the public key. You can only use the private key for signature, so if you do not have the private key,

    When I added the sharing in the afternoon, I still liked the default sharing Function of ios7 with so many third-party sdks, Which is concise and generous. It also displays your installed social apps. Next I will explain how to use it in cocos2

1. NSOperation: NSOperation is an abstract base class. We need to subclass NSOpeartion and encapsulate our tasks. The system provides two convenient sub-classes NSInvocationOperation and NSBlockOperation, NSInvocationOperation facilitates the

. H file: # Import @ Interface UIImage (UIImageExt) -(UIImage *) imageByScalingAndCroppingForSize :( CGSize) targetSize; @ End . M file: # Import "UIImageExt. h" @ Implementation UIImage (UIImageExt) -(UIImage *)

IOS uploads images through http post. Because iOS cannot upload images through html forms, to upload images, you must implement http requests, rather than using html form post as in other languages.The format of the http post request for uploading

In IOS apps, the comment is very simple. You only need two sentences: 1. Obtain the URL address: NSString * nsStringToOpen = [NSString stringWithFormat: @ "itms-apps: // itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?

We tested it using a simulator today and found that the detailTextLabel of UITableViewCell does not fully display the string. It ends with a ellipsis and contains spaces in the middle of the string value, as shown in figure 'Test 01' is displayed

VcD4KPHAgY2xhc3M9 "p1"> Discuss Discussion An assertion evaluates a condition. If the condition is false, the breakpoint handle of the current thread is called. Each thread has its own breakpoint handle, which is an object of the

When using NavigationViewController for page Jump, you should use the pushViewController method to jump to the next page. In this way, the next page is also in the NavigationViewController container. 1. jump to the next

A document on the network is written in this way, and the source of the original cannot be confirmed. Key Points   · Mobile Phone failures cannot be caused (such as crashes or screen problems) · Rapid response after a long time/over-use · Variable

-(Void) tapClick :( UITapGestureRecognizer *) tap { [UIViewbeginAnimations: @ "exitApplication" context: nil]; [UIViewsetAnimationDuration: 0.5]; [UIViewsetAnimationDelegate: self]; [UIViewsetAnimationTransition: