IOS

IOS6 handheld ProcessingMany features from iOS 5 application updates to iOS 6 cannot work normally. The main problem is that some APIs have been discarded in the new SDK. The hand-held direction is obviously ProblemsFor example, if your application

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The core of the Controller and View Model application is responsible for computing and creating a virtual world, which can exist without the View and Controller. (An application without an interface) Controller usually refers to View controller in

Use UIPageViewController to enable paging new program: file --> new project --> page-based Application template --> next --> device Family (Universal) --> next --> create; the DataViewController class provides an instance of this class to users on

[Plain] # import @ interface CacheHelper: NSObject {} + (void) setObject :( NSData *) data forKey :( NSString *) key withExpires :( int) expires; + (NSData *) get :( NSString *) key; + (void) clear; + (NSString *) getTempPath :( NSString *) key; + (

Original Problem description: I used NSUserDefault to detect the application being opened for the first time: [plain] BOOL didRunBefore = [[NSUserDefaults standardUserDefaults] boolForKey: @ "didRunBefore"]; if (! DidRunBefore) {// Your Launch Code [

Create our color selector. Let's first create a view. You can select a color in the color list. I will fill the list with the color name. Using "File \ New File ...", Select "UIViewController subclass", check "Targeted for iPad" and

[Html] Today, a very abnormal problem gets stuck: cannot find protocol declaration for "RefreshAudioListViewDelegate" 1. in PlayerController. h Custom a proxy RefreshAudioListViewDelegate # import" PlayerListViewController. h "@ protocol

-[UIDevice failed]: unrecognized selector sent to instance 0x6c29000 BaiduMapDemo [716: f803] *** Terminating app due to uncaught exception 'failed', reason: '-[UIDevice failed]: unrecognized selector sent to instance 0x6c29000 '*** First throw call

The iOS SDK provides two different APIs for synchronous and asynchronous requests for HTTP requests. You can also use GET or POST methods. First, we will understand the simplest synchronous GET request. To learn how to use these APIs, use the

[Cpp]NSData * bodyData = [[bodyString stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding] dataUsingEncoding: NSUTF8StringEncoding]; // convert bodyString to NSDataNSURL * serverUrl = [[NSURL URLWithString: RequestUrl]

UIActivityIndicatorView can be used to display a job in progress, such as the loading progress. Widely used in iphone     Usage 1: displays only the progress wheel indicator that does not stop rotating.// Display progress wheel indicator-(Void)

In the header file. h of the custom protocol @ Protocol NSDelegate @ Optional // optional -(Void) OnOption :( NSString *) pStr; @ Required // required-(Void) OnRequired :( NSString *) pStr;@ End   @ Interface NSClass: NSObject Id delegate; @ End   @

The block is similar to the function pointer in C. It is very convenient to transmit data in the Controller. Let's continue with the example in the previous chapter and transfer the data from Second to First. Here we use blocks to complete the

Implement Direct IO Program Implementation (1) first add a macro before the application: # define _ USE_GNU 1 and # define _ GNU_SOURCE (2) Add the O_DERECT option when opening a device file. For example, int writefd = open (dev, O_RDWR | O_DIRECT );

1 PrefaceIOS development follows the MVC model, that is, Model-View-controller. A view is something that is presented to users. A model is the data managed by an App, and it is another way of calling the App Engine. A controller is a bridge between

1 PrefaceUILabel can display static text and set the style of text. 2. code exampleZYViewController. h:   [Plain]# Import  @ Interface ZYViewController: UIViewController @ Property (nonatomic, strong) UILabel * myLabel; @ End # Import @ Interface

1 PrefaceToday, we will learn how to slide the Cell data from the UITableView. 2. code exampleZYViewController. h [Plain]# Import  @ Interface ZYViewController: UIViewController // Add a proxy @ Property (nonatomic, strong) UITableView *

Today, my new colleague asked me some questions about when to use global variables and when to use self. assignment. So I will explain it here. When to use self. most of the replies in the online search or forum are simply said that this is related

1 PrefaceUse the CGAffineTransformMakeTranslation function to create an affine translation transformation ). Draw everything to the graphic environment to a new location without modifying your drawing code. 2. code exampleZYViewControllerView.