IOS

IOS NSString append string method, iosnsstring First: NSArray * array = [NSArray arrayWithObjects: @ "Hello", @ "", @ "world ",@"! ", Nil]; NSString * printStr = @" "; for (int I = 0; I Second: NSArray * array = [NSArray arrayWithObjects: @

Ios Date Format: yyyy-MM-dd The date format displayed in the sample code does not conform to the localization habits. You can view the help documentation and modify it to a commonly used date format for future search; NSDate * now = [NSDate

Three pop-up window modes in IOS and three pop-up window modes in IOS # Pragma mark method 1 /** * Used in IOS7 and with a proxy */ -(Void) use1 { // 1. Create an intermediate pop-up box with the "cancel" and "OK" buttons. Set the proxy to the

In Autolayout, note the use of Hugging and Compression: autolayouthugging Preface This article focuses onAutolayoutAddintrinsicSizeAttribute control constraints. From my blog, welcome To: To Be Independent.  Hugging and Compression attributes There

IOS apps call each other Caller: You only need to execute the following call method, with ": //" as the separator, the left side is the address of the APP to be called, and the right side is the parameter you want to pass to the APP.   NSURL

Summary of image compression methods in ios There are two simple methods to read image data on the Iphone: UIImageJPEGRepresentation and UIImagePNGRepresentation. UIImageJPEGRepresentation require two parameters: image reference and compression

Dynamically set the height of the lbl text label in ios This article will share with you how to dynamically set the height and width of the lbl text label in ios. Three methods are provided for you, and you can freely choose based on your project

Variable Functions in basic Swift syntax and swift syntax Variables Import Foundation // variable declaration use // use let to declare a constant, use var to declare a variable constant can only be assigned to it once let name = "cuiyw"; var age:

Memory Optimization: encapsulation of jiugong Ge; Memory Optimization encapsulation of jiugong As more and more apps are available on the market, many software require a lot of memory for mobile phones. Therefore, we must master how to optimize the

A unified code block and iOS comments are attached to the ios project annotation specification. Code comments are often ignored, making it difficult to maintain code later. We are preparing to develop a standardized annotation system before the XX

UITextField Chinese search, uitextfield Import header files # Import "ChineseInclude. h"# Import "PinYinForObjc. h" NSMutableArray * searchResults; // a variable array to add the searched data Set Data Source -(NSArray *) dataArray {if (! _

Several small methods for transferring values between pages in IOS development: ios pages The most serious way to pass values between pages is to pass values through the proxy. The several small Methods written today do not include pass values

IOS: local notification UILocalNotification 1. Create a local notification UILocalNotification * local = [[UILocalNotification alloc] init]; 2. Set the notification display time Local. fireDate = [NSDate date]; 3. Set the Default Time Zone

IOS big image processing (with source code)Big Image Processing ViewController. m ---------------------------------------------- (void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. //

IOS UI Tab Development IOS UI Tab Development (iOS 8) The tab style is similar to a single choice. It can be called radio-style. This is a mainstream layout-design. It makes the content structure of the APP clear, the Development Division logic

Ios: Modify the project name and program name (xcode6.3) Step 1: Modify the project folder name Step 2: Open the new folder and set. rename xcodeproj, right click. xcodeproj and select Show package contents. A dialog box contains several files. (

IOS generates a local verification code, and IOS generates a verification code Verification codes are often used in Application Registration, login, or payment confirmation interfaces. Some of the verification codes are sent via mobile phones, and

Set the font color of ios7 statusBar to white 1: The statusBar font is white. In plist, set View controller-based status bar appearance to NO. Set statusBarStyle to UIStatusBarStyleLightContent2: Set statusBar and navigationbar as one [nav.

A clever way to implement the floating tableViewHeader, table border Previously, we had to implement a similar floating + parallax headerView because of our work. After studying how to do this for a long time, we finally used UICollectionView

Learning exercises-Implementation of IOS snowflake falling Method 1: Implement NSMutableArray NSMutable * array; global variable, called with a timer in the. m file -(Void) down {static int jianGe = 0; jianGe ++; if (jianGe> 2) {jianGe = 0; [self