IOS

Original address: http://blog.csdn.net/sjzsp/article/details/6688950 Because the UI has a special purpose, uiactionsheet and Uialertview do not allow you to customize the interface by addsubview such functions. The solution is to inherit it,

The JSON format is no longer in detail when the iOS post request is made, as is the normal way Send string requires special handling, the code is as follows: 1, note the content-type,2, the character encoding, 3, after the completion of the code,

First, using the Uiimagepickercontroller protocol, -(void) Actionsheet: (Uiactionsheet *) Actionsheet Clickedbuttonatindex: (Nsinteger) Buttonindex { if (Buttonindex = = 0) { Uiimagepickercontroller *picker = [[Uiimagepickercontrolleralloc]

In many app designs, the left/right side of the navigation bar will be designed to be an icon.We usually take the form of creating a button: Create button UIButton *btn = [UIButton buttonwithtype:uibuttontypecustom]; [Btn

Down vote accepted Cocoa Touch Framework support is added in Xcode 6 primarily to support APP Extensions in IOS 8 and Mac OS 10.10. APP extensions have to is built as Cocoa touch frameworks.Frameworks also require less manual work to set up in a

Swift-GCD, This article introduces the GCD application operations in the Swift3 language. target readers can be beginners without the basis of GCD, you can also have a certain understanding of GCD, but want to have a more comprehensive understanding

Swift Extension summary, swiftextensionSummary Extended functions are added to existing classes, structures, enumeration, and protocols. Similar to the Category in Objective-C, the Extension has no name. Extensions can do the following: Add

The difficulty of dragging UIScrollView in XIB, and dragging uiscrollview in xib Recently, there was a job of porting code in development, but that piece of code was written n years ago. Although it was not seen before, it was quite difficult, only

IOS-attributes, Assign: simple assignment. Retain: After a value is assigned, the new retain method and the release method of the old value are called. Copy: copy the value first, and assign the copy value to the instance variable. This

UIButton image text location, uibutton image text In the actual development process, text and images are often added on buttons. The positions and images are placed differently as needed. Various display methods are implemented as

GitHub code upload and github code uploadMethod 1   After logging on to GitHub, click the New responsitory button shown below You can also click the green button New repository to create a New remote repository. After clicking this button, the

Memory debugging tool description-demo, memory debugging tool demo In the development process, we sometimes encounter Memory leakage. Apple provides a powerful Instruments tool to detect iOS app memory leaks. The following describes the Instruments

IOS-control view and button, ios control viewbuttonIBAction and IBOutlet IBAction is the return value, which is equivalent to void. Only the return value is the IBAction method can be connected to the control in storyboard.Only the property declared

Some common RACSignal usage and RACSignal usage NSData + RACSupport. h @ interface NSData (RACSupport) // Read the data at the URL using-[NSData initWithContentsOfURL: options: error:]. // Sends the data or the error. // The semaphore that returns a

Reflection --> parse JSON data, reflection -- parse json  Method 1 Persons. json File [ { "name": "Chris", "age": 18, "city": "Shanghai", "job": "iOS" }, { "name": "Ada", "age": 16, "city": "Beijing", "job": "student" }, { "name": "Rita", "age": 17,

IOS learning-(transfer) NSObject explanation, iosnsobject This article is mainly reproduced from:NSObject for ios development NSObject is the root class of most Objective-C class inheritance systems. This class follows the NSObject protocol and

What are the differences between iOS notifications, local notifications, and push notifications? APNS mechanism ., Iosapns Local/push notifications are designed for different needs.Local notifications are local for iPhone, iPad, or iPod.Push

Objective-C Numbers, objective-cnumbers In Objective-C programming language, in order to save the basic data types like int, float, bool in object form, Objective-C provides a range of methods to work with NSNumber and important ones are listed in

IOS project-basic framework construction and ios basic framework construction During project developmentIOS project -- build a project development environmentAfter that, we should first consider the overall framework and navigation architecture

Ios message push details, ios message push details Message push process The mobile phone system keeps communicating with Apple APNs. When the App is opened, a toKen is obtained from the apple Apns. Send toKen to the backend server The server sends