IOS

Recently I have been studying IOS video players and need to use ffmpeg4ios. Need to use Git, Linux Shell script to execute install-ffmpeg.sh. Linux Shell script: http://ishare.iask.sina.com.cn/f/37135883.html Install-ffmpeg.sh SRCDIR==/install- - [ !

RatchetAllows mobile developers to use simple HTML, CSS, and Javascript components to quickly createIPhoneApplication Prototype. Ratchet provides many interface components similar to native applications. In addition, Push. js can help developers

I. Confirm the network environment 3G/WIFI1. When you add source files and framework to develop Web applications, you must confirm the network environment, connection conditions, and other information. If they are not processed, they will not be

This article discusses in detail the native plug-in of the PhoneGap (also known as Apache Cordova) Application in Xcode (targeting iOS devices. If you are new to PhoneGap or want to review the basic knowledge of PhoneGap, read the PhoneGap entry for

Apple provides json-related processing APIs for ios5, the most important of which is the NSJSONSerialization class. + (BOOL)isValidJSONObject:( + (NSData *)dataWithJSONObject:()obj options:(NSJSONWritingOptions)opt error:(NSError ** +

Most of the group's children's shoes are new to you. In order for you to better ask questions and get better answers to the questions you asked, I would like to write a few notes: 1. Take your problem seriously and think carefully before asking the

Automatic Reference Counting (ARC) is a compilation-level feature used to develop Cocoa programs for Automatic memory management. 1: In XCode 4.2, create a project using the template, which will use the "ARC feature" by default. 2: You can select

The Code is as follows: -(IBAction) openMaps { // Where is Apple on the map anyway? NSString * addressText = @ "1 Infinite Loop, Cupertino, CA 95014 "; // URL encode the spaces AddressText = [addressText stringByAddingPercentEscapesUsingEncoding:

1. Xcode has built-in GDB. You can use GDB to debug and debug the command: 1.1 po command: the abbreviation of print object, showing the text description of the object (Lldb) po [$ eax class]: Address of the output exception object (Lldb) po [$ eax

After 4.0, the system has its own class (NSRegularExpression, NSRegularExpression) to use regular expressions. Previously, it was used to add a third-party class library RegexKitLite. Simple use of these two classes: NSString * str = @ "3sdfh * odsi

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

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: # Import # Import

Basic 1: image memory size Summary A: Images: Large Memory users, especially mobile game image resources. Computing the usage of image resources in memory has become a frequent task for developers of j2s games. CoCoMo explains how to calculate the

For iOS apps, xcode optimizes PNG files so that image preview cannot be displayed. So how can we view these optimized files? The optimization is completed by the pngcrush tool. You can find it in xcode. Pngcrush supports command line options-revert-

After ios6, the image stretching method has been extended to three functions: 1. Methods provided by ios4: -(UIImage *) stretchableImageWithLeftCapWidth :( NSInteger) leftCapWidth topCapHeight :( NSInteger) topCapHeight This function is an instance

[TableView reloadData]; you can refresh the data of the entire tableview, but sometimes we may only change the data of one or more rows, and we don't want to repeat all the data. What should we do? This requires the following method. -(Void)

Basic memory management policy of the database Apple provides developers with a large number of libraries, including the following memory management policies. 1. If the object is created using the-initialization method, the object only adds 1 to

  Multithreading is difficult in a variety of programming languages and is difficult to implement in many languages. Although objective-c originated from c, its multi-threaded programming is quite simple and comparable to java. This article briefly

ModalPresentationStyle: UIModalPresentationFullScreen: Full Screen mode, that is, the pop-up window occupies the entire screen, which is the same in portrait mode and landscape mode, UIModalPresentationFormSheet: the window is reduced so that it

I initially learned how to develop IOS (IPad/IPhone). I spent a lot of time on the Interface layout in the past two days. There are two methods for IOS interface: 1. Create an Interface using Interface Builder and associate it with the