IOS

Time:Click: 365 times Using GPS in IOS apps is roughly divided into the following two steps: 1. Adding corelocation. Framework; 2. Generating the cllocationmanager measurement position. Test Code // Locationviewctrl. h # import uikit/uikit. h #

1. OpenGL ES version support IPhone: devices of the iPhone 3G or earlier versions (including the iPhone 3g) only support OpenGL es1.1. devices of the iPhone 3gs or later versions (including the iPhone 3gs) Support OpenGL es1.1 and OpenGL es2.0. IPad:

Many IOSProgramYou need to connect to the network. The program connecting to the network needs to determine whether the current network of the device is normal. The following provides a very simple network detectionCode: You only need to implement

For the above three figures, due to the influence of BOM (byte order mark), zbar encountered garbled characters during parsing. Here we use this ultraedit to look at these three figures, UTF-8 diagram: https://chart.googleapis.com/chart? CHS = 150x1

In iOS, if we only need to read an image or a video (or take a photo or video) at one time, we can use uiimagepickercontroller. However, many times we need to read multiple photos or videos from photolibrary at a time. At this time, we need to find

StatementYou are welcome to repost this article, but please respect the author's Labor achievements. repost this article and keep the statement in this box. Thank you.Article Source: http://blog.csdn.net/iukey In uikit, uitabbar represents the

Integrate advertisements in iPhone programs, whether or not they can make money or not. Refer to the following article: Http://bees4honey.com/blog/tutorial/how-to-add-iad-banner-in-iphoneipad-app/ Refer to the integrating Iads into an iOS 4 iPad app

Develop the tableview of multiple sections. First, consider how to obtain the data source. Here we can use two methods: the first is to read the plist file. The second is to store and read data through code. The data source required by multiple

Singleton design mode. This mode is often controversial, so I want to explain the singleton here. In principle, Singleton is a class that is instantiated only once in the life cycle of a program. To ensure this, we use a static method of the class

IPhone and iPad products are popular all over the world, and a huge user base is stimulating IOS software development needs. However, there is a large talent gap in China, which is in short supply and has a bright development prospect. We sorted out

Complete arc Guide The most significant change in iOS 5 is the addition of automaticReference counting (automatic reference count ). ARC is the new llvm3.0 compiler features completely eliminate the hassle of manual memory management. Using Arc in

To be referenced: # Import # Import Implementation   Class currentclass = [common class];  While (currentclass ){  Unsigned int methodcount;  Method * methodlist = class_copymethodlist (currentclass, & methodcount );  Unsigned int I = 0;  For (; I

// Create empty PDF context on iPhone for later randering in it -(Cgcontextref) create‑context :( cgrect) inmediabox path :( cfstringref) path { Cgcontextref myoutcontext = NULL; Cfurlref URL; Url = cfurlcreatewithfilesystempath (null

-(Void) hidetabbar :( bool) Hidden { [Uiview beginanimations: NilContext: NULL]; [Uiview setanimationduration: 0]; Uiview * window = [uiapplicationSharedapplication]. keywindow; For (uiview * ViewIn self. tabbarcontroller. View. subviews) { If

1. Add a variable to the. h file to record the current scale value so that the viewcontroller follows Uigesturerecognizerdelegate proxy. Add the following variable to. h. Cgfloat lastscale; 2. Add the following statement to viewdidload: Uiview *

Note: I 've found a lot of articles on the Internet to see how to port FFMPEG to iOS. There are always a lot of problems with the results, and the help of FFmpeg is just that. It's really a headache. It took two weeks, finally, the FFmpeg is given.

After the project changes too much, it will leave some unnecessary image files, write a script, and run it. Find 150 unused images ~ The following script specifies the image directory and code directory based on your project. Find images that are no

1. Use @ property and @ synthesize to declare a member variable. When assigning a value to it, add "self." To Call The setmember method of the member variable.  Directly call the member variable and assign the value to it: Member = [nsstring

Atomic and nonatomic are used to determine whether the getter and setter generated by the compiler are atomic operations.  Atomic When setting the @ property attribute of a member variable, the default value is atomic, providing multi-thread

Protocol-Protocol The protocol is used to define the attributes, behaviors, and callbacks of objects.There are two keywords in the Protocol: @ private and @ optional. @ private indicates the method that must be written to use this protocol, and @