IOS

Premise: When XCode is used for development and debugging, it is often necessary to print some debugging information for debugging. As you know, when there are too many information to print, it may not be a problem to run on the simulator, because

1. How to capture packets for real-machine joint debugging   Establish a virtual port and use the mobile phone's identifier. wireshark can detect the virtual port for packet capture. Open zombie Process Breakpoint for standard library

You can write a class crashpolictioincatcher and define a static method startCrashExceptionCatch in the class. In the method, call NSSetUncaughtExceptionHandler (& uncaughtExceptionHandler ); Bind the void uncaughtExceptionHandler (NSException *

I recently developed a Rich Text editor on the iPhone (see Rich-Text Editing in Mozilla ).-webkit-tab-highlight-colorI have not seen any articles on similar issues.Problem Click the editor area (top-level container isdiv[contenteditable=true]) To

The Singleton mode is simple and often mentioned in interviews, so it is placed in the first place.What is Singleton mode? Singleton, literally, means that the entire application can only create or have one instance.Why is Singleton mode required? 1.

Upgraded xcode5 to adapt to ios7. various pitfalls .. Today I met another one. The height of textview cannot be calculated correctly. (You can use textView. contentSize. height to obtain a float height) However, on ios7, I found this was

      NSBundle * bundle = NSString * path = [bundle pathForResource: ofType: _ dict = [NSDictionary dictionaryWithContentsOfFile: path];   NSMutableArray * images = (I =; I     Mark listens to all the buttons and click (IBAction)

NSURL * url = [NSURL URLWithString: urlString];   NSURLRequest * request = [NSURLRequest requestWithURL: url]; NSError * error = nil; NSData * data = [NSURLConnection sendSynchronousRequest: request returningResponse: & response error: & error];

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Simple Gesture operations in iOS: Long-pressed, kneading, moving, and rotating Create a single view project ViewController. h file #import @interface ViewController : UIViewController { UIImageView *_imgView; float _rotation;}@end

There are three methods to implement multithreading in iOS development: NSThread, NSOperation, and GCD. This article describes the specific implementation of the three methods. 1. NSThread There are two ways to initialize a thread: /*******

1. Monitor the shake Action 1> make the current view controller the first responder // you must first make the current view controller the first responder to respond to the action time [self becomeFirstResponder]; 2> implement response

Run the application with Xcode5. The first result is the status bar change. In iOS6, the status bar is being processed by the system and does not need to be considered in the application. After iOS7, the application is processing. Each

1. Create a single view project and import the AVFoundation Library 2. ViewController. xib 3. ViewController. h file # Import # Import @ interface ViewController: UIViewController {// progress IBOutlet UISlider * _ proSlider; // audio

In ios development, sometimes we need to play a certain kind of sound frequently, such as refreshing prompts on Weibo and QQ messages. For these short and frequently-played audios, it is best to add it to system sound. Note: The audio file to be

1. Create a single view project, import the ASIHttpRequest library, and import the four system libraries MobileCoreServices, CFNetwork, SystemConfiguration, and libz1.2.5.dylib. 2. Add an image as needed, such as haoyou.png 3. ViewController.

We all know that the tabbar of the UITabBarController controller in Xcode was ugly before IOS7, but sometimes we wanted to use UITabBarController to quickly switch the interface, which involved customizing the tabbar. So how can we customize a

1. Create a single view project, import the FMDatabase library, and import the libsqlite3 system library; 2. ViewController. xib File 3. ViewController. h @interface ViewController : UIViewController { IBOutlet UITextField *_name;

The problem that the address book cannot be read in IOS7 is that the system version is not determined to construct ABAddressBookRef. The following are two methods in two programs. For more information, see. All versions have been tested. // Obtain

Comparison of the unique identifier of an existing IOS device UDID [[UIDevice currentDevice] uniqueIdentfier] According to a formula, the device serial number, network interface address, and other information are calculated as parameters. After iOS6,