IOS

On the Internet, I found out how to restore the resources and images in the app for a long time. The amount of information is small. I only need to make a few general statements and specifically record the following information for others to

Reference SystemConfiguration. framework # Import "SystemConfiguration/SystemConfiguration. h"# Include "netdb. h"-(BOOL) connectedToNetwork{// Create a zero address. The 0.0.0.0 Address indicates querying the network connection status of the local

I have never paid attention to the reflection usage in iPhone development. java C # and so on are also reflected. It is quite convenient to use because of the current development needs, I thought of using reflection to complete it. 1. create an

-(NSURL *) convertTxtEncoding :( NSURL *) fileUrl {if ([FileManagementAPI getFileSize: [fileUrl path]> 1024 * 1024.0f) {return fileUrl ;} NSString * tmpFilePath = [NSString stringWithFormat: @ "% @/tmp/% @", NSHomeDirectory (), [fileUrl

Bundle creation is actually a derivative of the previous static library creation. In the creation of static libraries, our static libraries often carry files, images, and multimedia resources. You can add the resource files of the plug-in to the

Previous: http://www.bkjia.com/kf/201301/185441.htmlTableView is a rolling view divided into different parts. Each part is further divided into rows. Each row is an instance of the UITableViewCell class. You can embed images, text, and anything into

(1) Thread 1: Program formatted ed signal: "SIGABRT" an error that is frequently encountered by beginners in application development: the cause of this error is that the view is not initialized. After careful reading, we found that the view

Recently, the integration with the uc sdk also has some problems when he applies it to the monodevelop platform. The source code is written here. Let's take a look at the generation. a project file // UseStaticLibraryUc. h // UseStaticLibraryUc //

Currently, the vast majority of applications can be updated, and you will receive an update notification when you open the application. This is conducive to user updates. Many people want Xcode to provide corresponding APIs to find the application

Today I encountered a strange Bug and read the following code: // option array assignment NSMutableArray * tmpAr = [[NSMutableArray alloc] init]; NSLog (@ "% d ++, 0

In iOS development, when it comes to obtaining data processing in json format from the network, we will think of many open-source third-party packages, such as SBJSON. In iOS5, the processing capability for json format data is also added, and the

[UIApplication sharedApplication]. networkActivityIndicatorVisible = YES; // display [UIApplication sharedApplication]. networkActivityIndicatorVisible = NO; // hide   Display the network wait mark in the status bar   The status bar can be modified

1. PrefaceThe switch space is also very common in IOS. Let's introduce its simple usage today. 2 UISwitch IntroductionThe switch space is similar to the HTML single-choice button. There are only two States: ON/OFF. the following key code is as

1 PrefaceThe title of the navigation bar is not necessarily a text, it can be an image, or even any view control. Today we will discuss it separately and use UIImageView as the title of the navigation bar. 2. instance codeZYViewController. m code:  

IOS obtains the Document folder path NSFileManager * fileManager = [NSFileManager defaultManager]; NSArray * paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES ); NSString * documentsDirectory = [paths

1 Preface Create a UIRotationGestureRecognizer monitor and bind it to your view to capture the gesture that the user uses his fingers to rotate on the screen. The UIRotationGestureRecognizer class has a rotation attribute, which can be used to set

Copy Reachability. h and Reachability. m to the project. 2. Add the framework: Add SystemConfiguration. framework to the project. The code in the example is described here. The following code sets the UITextField value and the displayed image. [Cpp]-

We all know that many resources on mobile devices are scarce, especially when the memory is usually relatively small, and iPhone4 only has 512 MB. In addition, IOS4.0 and later support for multi-task, this problem is even more prominent. Therefore,

1 PrefaceWhen I was working yesterday, I encountered the index creation problem for TableView. Sometimes, because the data volume in TableView is so large that I need to create an index on the right side to search for it. Today I specially sorted it

1 Preface Use the dispatch_once function in the APP's lifecycle to ensure that each segment of code is executed only once, even if it is called multiple times in different places of the Code (such as single-instance initialization ).   2. code