IOS

After a period of study and reading the documentation, I have a basic understanding of Mac OS and Objective C. I am going to learn how to develop the iphone. In the selection of development tools, I have repeatedly used MonoTouch to select XCode +

Add a custom title in the iPhone app navigation bar The navigator is often used in development. It is easy to add a title to the navigator as follows:Self. title = @ "Elimination phase Day 1 ";UILabel * titleText = [[UILabel alloc] initWithFrame:

Add multiple UIBarButtonItem in the NavigationController navigation bar In actual development, the navigator is one of the most important containers. We often need to add various style buttons in the navigation bar. It is very easy to add a button.

This is from the network and has not been tested: There are two methods to solve this problem. The first method is to store files in the program directory in the format. caf file, the interface used is AVAssetReader, AVAssetWriter,

[Plain]   -Create UITableView  DataTable = [[UITableView alloc] initWithFrame: CGRectMake (0, 0,320,420)];[DataTable setDelegate: self];[DataTable setDataSource: self];[Self. view addSubview: DataTable];[DataTable release];    2. Description of

[Plain]Static UIImage * shrinkImage (UIImage * original, CGSize size){CGFloat scale = [UIScreen mainScreen]. scale;CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB ();CGContextRef context = CGBitmapContextCreate (NULL, size. width * scale,

1. click File> New> Proget... to create a project: 2. Select the Single View Application template and click Next: 3. Name the project Simple Table and click Next-> Create to Create a new project: 4. Click the ViewController. xib file and add the

Set the tag for each TextField during viewdidload. Then you can determine the pop-up and off of the keyboard based on the following UITextField content. Some TextField * names Name. tag = 2; The following figure shows that when tag = 2, the

The UIScrollView boundary processing problem is ignored in the combination of scrollView and pageControl in iPhone development Note (5. There is an important attribute bounces in UIScrollView. The following is the definition of this attribute in

To save traffic and improve user experience, many applications currently use the local cache mechanism. Among them, Netease news provides the best caching function. My own applications also want to add the local cache function, so I checked the

1. Change addSubview to setRootViewController. [Window addSubview: viewController. view]; modify as follows: If ([[UIDevice currentDevice]. systemVersion floatValue] {// Warning: addSubView doesn' t work on iOS6[Window addSubview: viewController.

After two days of struggle, I finally found the cause! Error: NSArray array. Passed through @ property (nonatomic, copy) and @ synthesize. In the class initialization method, assign array = [result objectForKey: @ "list"] to the array; Print

I. Introduction to view switching typesIn storyboard, segue has several different types. In iphone and ipad development, segue has different types.In the iphone, segue has three different types: push, modal, and custom. The difference between these

Keywords: ActionSheet AlertView1. Create a Single View Application project named ActionSheetDemo, as shown in figure 2. Place a Button on ViewController. xib and the Title is "delete"Modify ViewController. h and add the following

This is an old topic, which has been introduced in many places on the Internet. To sum up, there are basically two methods.1. When the network connection changes and you need to be notified, you can select Reachability. 2. If you just want to know

In iOS6, The statusbar color is determined by the UINavigationBar of the current page, that is, the UINavigationBar in the current view determines the tintColor of statusbar. If our UIViewController is a subset of UINavigationController, the color

Most of the time, we are worried about shielding the keyboard from screens that are not big enough. Especially when the user is in the editing status, the content under the keyboard cannot be seen, and the user can only be blind. Now there is a

IOS does not have the system's CheckBox component, but it is often used in actual development. Therefore, a CheckBox control is specially written and the code is directly written. :   The UICheckBoxButton. h file is as follows:[Html]# Import #

For security reasons, iOS restricts each application to a specific file. Other apps do not have the permission to access this folder. This is the sandbox of the app. Common file directories for iOS apps:   /AppName. app package

-(Void) initCheckVersionWithData :( NSData *) data { NSData * xmlData = data; NSString * result = [[NSString alloc] initWithData: xmlData encoding: NSUTF8StringEncoding]; NSLog (@ "result: % @", result ); GetCheckVersion * parser =