IOS

Every iOS program has its own file system. This file system is called SanBox, which stores files other than this code, other applications cannot access the sandbox of the program, How can I view the sandbox locally?Under normal circumstances, some

Previously, the article "add a dynamic hidden button" on the iOS virtual keyboard described how to add a dynamic button on the keyboard. It was found that the buttons on the keyboard were stiff when they were displayed, here we have made

1. I wrote a small Demo to implement up and down movement: the main code is as follows: [cpp]-(IBAction) upChange :( id) sender {if (typeView = down) {[self. downBtn setHidden: NO]; [self. upBtn setHidden: NO]; [UIView animateWithDuration: 0.5

Add Application supports iTunes file sharing YES in. plist so that you can view logs in itunes, which is very convenient! NSFileManager * filemangage = [NSFileManager defaultManager]; NSArray * paths = catalog (NSDocumentDirectory, NSUserDomainMask,

1. -(CGRect) convertRect :( CGRect) rect toView :( UIView *) view; Description: Converts a rectangle from the aggreger's coordinate system to that of another view. this means to convert a rectangle from the receiver's coordinate system to the

1. fileInputStream FileOutputStream reads and writes data to the File through byte streams [java] public static void main (String [] args) throws Exception {// write data to the File f = new File ("d: \ dmeo.txt "); FileOutputStream output = new

OC Syntax:-(NSInteger) subtract :( NSInteger) paramValue from :( NSInteger) paranFrom {return paramFrom-paramValue;} C Syntax: NSInteger subtract (NSInteger paramValue, NSInteger paramFrom) {return paramFrom-paramValue; www.2cto.com}: NSInteger (^

You can use flash to play an animation when the App starts. You can also use multiple consecutive images. In the project, I chose the latter. Through the continuous animation effects of multiple images, the system's built-in UIImageView can complete

1 PrefaceUISegmentedController is similar to a single-choice button and provides a selection operation. Today we will learn about its simple usage. 2 UISegmentedController IntroductionCode on . H file [Plain]# Import  @ Interface ZYViewController:

1 PrefaceUITabBarController is a multi-view controller. You can switch between different views. Let's take a look at its simple usage. 2. code exampleZYViewController. h:   [Plain]# Import # Import "ZYFirstViewController. h"# Import

1 PrefaceThe UIWebView control can correctly and dynamically load Web pages. We can use the UIWebView class to drive all the permissions of Safari on IOS. 2. code exampleCustom UIWebView content: ZYViewController. h: [Plain]# Import  @ Interface

Apple has banned UUID applications since January 1. So we need to replace it with some methods. Below I will replace the UUID with the keychain access. For the Keychain application, Apple provides an example program named GenericKeychain. Here:

Delegate is for the one-to-one relationship, and the reciever can return a value to the sender; Notification can be targeted at one-to-one/notify/none. reciever cannot return the value to sender; Therefore, delegate is used by sender to receive a

1 PrefaceThrough this study, we can understand the differences between the Objective-C method and getting variables in Block Objects. 2. code exampleMain. m   [Plain]# Import # Import "TestDemo. h"Int main (int argc, const char * argv []){ @

1 PrefaceWe have already learned that we can construct a wide variety of application interfaces. Then, some applications cannot be fully implemented simply by using the built-in components of UIKit. Sometimes the application needs custom plotting.

Some svn tools are convenient and intuitive to manage, but the efficiency is faster than that of command lines. (Due to poor memory, I often forget some knowledge. For example, I don't need to be unfamiliar with the command line for a few days. In

Add a search bar to navigationItem. The effect is the same as that of most programs. The Code is as follows: UISearchBar * searchBar = [[UISearchBar alloc] initWithFrame: CGRectMake (0, 0,200, 28)]; SearchBar. backgroundImage = [UIImage imageNamed:

To facilitate webserivce calls in ios, we found an open-source framework such as wsdl2objc to parse webservice for reference in ios.   The following is a small example. 1. First, use Asp.net to build a tested webserivce and place it on the IIS

Sometimes we may need to copy the text on UILabel or the image of UIImageView. By default, UILabel and UIImageView do not respond to the Touch event and cannot be copied, then we need to implement a replicable UILabel. Add a new class inherited from

  # Include # Include       -(Void) showPlatform {Int mib [2];Size_t len;Char * machine;Mib [0] = CTL_HW;Mib [1] = HW_MACHINE;Sysctl (mib, 2, NULL, & len, NULL, 0 );Machine = malloc (len );Sysctl (mib, 2, machine, & len, NULL, 0 );NSString *