IOS

If you see a problem today, the editing project prompts "Unknown type name 'nsstring', as shown in figure   The exception occurs because ZipArchive is added to the project (a third-party open-source decompression library)   Generally, the

Important Note: If you use both PhoneGap (cordova) and sencha-touch, you must first introduce the phonegap js file, otherwise, the plug-in you developed may not be called!PhoneGap introduction:Official PhoneGap websitePhoneGap ChinaSimple Steps for

First, you must emphasize the importance of code reuse. The importance of reuse: First, high production efficiency; second, high software quality; third, proper reuse can improve the maintainability of the system. Code reuse is not only an

The Phonegap intercepts the menu button event menubutton, which is used to process the menu interception event in html5. This event is triggered when the user presses the menu document.addEventListener("menubutton", yourCallbackFunction,

Let's first convert a simple block code: Source: int main() { void (^blk)(void) = ^{printf();}; blk(); return 0; } struct __block_impl { void *isa; int Flags; int Reserved; void

BlocksBlocks is an extension of C language. blocks is an anonymous function with an automatic variable (local variable. This concept is: closure. For example, lambda in python has also introduced lambda in c ++ 11. In Wikipedia, Closure: Closure is

As we all know, when developing an APP that involves network connections, we all want to determine the current network connection status in advance. If there is no network, we will no longer request a url, saving unnecessary steps, so how can we

. With the introduction of the following functions, you can easily shake the device when the tester encounters a BUG, and then automatically save it to the sandbox of the application. After saving it to the sandbox, you can customize a problem

The built-in accelerator is one of the coolest features of a smartphone. ios can use this small device to know how the user holds the mobile phone and whether the user has moved the mobile phone. ios uses the accelerator to process automatic

Source: In batch production of analyst apps, the basic functions of this app are the same, but the application names, icons, and identities of different analysts are different (this unique identity is required to request data ). Solution: The

I. Use the NSKeyedArchiver class to operate on Object Access Features: This class can store objects in the form of key-value pairs and extract them from the file using keys. It is similar to SharedPreference in android and Its serialized data is

When doing a project, we often need to process images to achieve performance optimization or meet requirements. The following are common scenarios: Stretch Image If the image materials used in the project can be obtained through stretching, do as

Preface: After learning the underlying c and c ++, we can now go back to the upper-layer interface design. Since we have done this, we must do it well, just as we have done in the past in c and c ++. In the past year, I have carefully studied the

Readwrite: it is a readable and writable feature. The getter and setter methods must be generated;Readonly is the feature of the capital. Only the getter method is generated, and the setter method is not generated. You do not want to use the

0. preface during project development, we often encounter that the basic space in some View is the same, but the data is different. In this case, we can use xib to encapsulate this View for multiple reuse, (For example, TableViewCell with fixed size

Zookeeper With the rapid development of HTML5 and the desire for cross-platform mobile App development, there will be more and more demands for using PhoneGap for development. Based on the information on the network and combined with your own

Aaron is the founder and. Net developer of MarkedUp. In this article, the author lists several representative types of best programmers based on what he sees at work. They have their own characteristics and personalities. in software development,

During iOS development, when the keyboard appears, the output port UITextField is overwritten and the output content cannot be seen by the user. In this case, the current view needs to be moved up accordingly. When the output ends, click anywhere on

In iOS, the dictionary is actually unordered. How can we sort the dictionary? The Code is as follows: @ Interface OrderedDictionary: Optional {NSMutableDictionary * dictionary; NSMutableArray * array;} // insert a location-(void) insertObject :( id)

This document records the data transfer mechanism between different view controllers when UI is implemented by handwriting code During interface switching. The presentViewController and dismissViewController functions are used to display and remove