IOS

Assign: simple assignment without changing the index countCopy: Create an object with an index count of 1 and release the old object.Retain: Release the old object, assign the value of the old object to the input object, and increase the index count

Table A-2 CFBundleDocumentTypes dictionary keywords Keyword type description CFBundleTypeExtensionsArray this keyword contains a set of file extensions mapped to this type. To open a document with any extension, you can use a single asterisk (*).

About Memory ManagementMemory management refers to the process in which your program allocates, uses, and releases memory during running. A carefully encoded program always uses as much memory as possible. In object-c, memory management is also seen

Now I am engaged in iphone development. I have never been very familiar with the object-c memory management mechanism. I can see that apple's official documents are well written and I have not found any translation articles. So I translated it by

Next, let's introduce how to display the parsed data in AQGridView, because AQGridView has been imported into our project, so we can directly reference it in KKFirstViewController. [Plain]# Import # Import "ASIHTTPRequest. h"# Import "AQGridView. h" 

UIPageController is a built-in control that is not written in most IOS tutorials. Its main function is to implement view paging, which is somewhat similar to the paging function on a webpage. This article mainly uses an example to talk about the

View simulator files Okay. In this case, debug the program on the simulator: Run the simulator; Open Finder, press and hold option, and select "go"-"resource library" in the menu bar" If no resource library is found, use the terminalEnter open ~

In many news or text display applications, a mix of text and text interfaces, such as Netease news, appear. At first glance, a webpage is similar. In fact, this effect is not implemented by loading a webpage through UIWebView. Now I want to share a

I wrote an example of gravity sensing yesterday. I think this example is useful. I will share it with you: 1) Obviously, after ios4, you can use the coreMotion framework to add UIAccelerator for backward compatibility, [Html]# Import # Import @

After searching on the internet, I found that only some of the CoreData relationships are explained, but there is no corresponding introduction to queries between multiple tables. Therefore, the operation is written by yourself. Create several

In the past two days, I encountered various problems when submitting applications. One of the most tangled problems is that everything is ready, and the binary files have been Archive, Validate, and Distribute, "Missing Screenshot" is displayed on

1. Create a Phonegap project MyPluginEnvironmentXcode4.5.1Phonegap2.1.02. Create an implementation in subclass under the Plugin folder[Plain]//// MyPlugin. h// MyPGPlugin//// Created by kllmctrl on 12-10-29.//// # Import  @ Interface MyPlugin:

IOS applications are internationalized in three parts:Info. plist file InternationalizationInternationalization of. xib files. M file InternationalizationI will explain it one by one. Info. plist file InternationalizationWe use Xcode 4.5 to create a

In ios development, if you want to access the folder of the app in the simulator, you can access the folder either directly through the program itself or through the command line. The access method in the command line is: first open the command, in

Use the story board technology to implement tag navigation. Use the "Tabbed Application" template to create a project named "TabNavigationStoryborad. Select "Use Storyborads" and "Use Automatic Reference Counting ". After the creation is complete,

Third-party Wait indicator. MBProgressHUD is a third-party Wait indicator framework. Below are the wait indicator styles provided by MBProgressHUD, which can be divided into two categories: Unknown End Time and known end time. In MBProgressHUD, you

[Cpp] view plaincopyprint? Import files to the. h file Import the. h file to the database [cpp]# Import # Import [Cpp] view plaincopyprint? In the. m implementation file In the. m implementation file, [cpp]NSString * path = [[NSBundle mainBundle]

Under normal circumstances, the following two methods are implemented in AppDelegate to enable the listener to recover from the background to the foreground. [Cpp]-(Void) applicationDidEnterBackground :( UIApplication *) application{Log4info (@ "---

First, I have to say that. Although this technique is not complex at all, it requires programmers to understand their own code. Objective-C does not support multi-inheritance because of its reasons. Multi-inheritance allows us to combine the

1 PrefaceThe last time we introduced the simple method of creating a Storyboard, this time we will introduce how to pass values between two viewcontrollers through Storyboard. 2. code example2.1 create a ViewController file without nib   2.2 set the