IOS

IOS development and Reveal usage This is the background of the story. Wang has recently changed a new boss, the product team is new, and the test team is new. He is the only one responsible for iOS development. Some former bosses urged the project,

Key-Value Coding (KVC) in IOS Kvc is an informal protocol that provides a mechanism to indirectly access the attributes of an object. Direct access to objects is implemented by calling the accessors method. kvc can directly access the properties of

IOS development-four types of UITableViewCell   - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ UITableViewCell *cell; switch (indexPath.row) { case 0: { cell

IOS time type conversion and various data types Conversion In this article, we will share some data types and time-type conversion methods, with detailed comments. If you don't talk about them, go directly to the code.   /*** Time conversion part * /

String NSString in iOSCreate a String object:NSstring * str1 = @ "hello world ";NSString * str = [[NSString alloc] initWithString: @ "hello world! "];NSString * str_1 = [[NSString alloc] initwithuf8string: "hello world"]; // converts a C string to

IOS domain name resolution How to resolve domain names in iOS   // Obtain the IP address (NSString *) getIPWithHostName :( const NSString *) hostName {const char * hostN = [hostName UTF8String]; struct hostent * phot; @ try {phot = gethostbyname (

In iOS Autolayout, the Frame of childViewController is abnormal when ViewController is nested. In a recent project, we used Storyboard and AutoLayout for development. A ViewController contains multiple child viewcontrollers. As a result, when we add

IOS _ Regular ExpressionIOS Regular Expression Regular Expression, also known as Regular Expression and Regular Expression (English: Regular Expression, often abbreviated as regex, regexp or RE in code), is a concept of computer science. Regular

IOS: Camera Feature Analysis and 3_OPENGL Special Effects I wanted to end the introduction of the Camera software with two sections. Later I found that OpenGL was not introduced yet, so I added this article. This article mainly describes several

IOS dictionary NSDictionary and NSMutableDictionary knowledge points, iosnsdictionary   The elements in the dictionary are stored in the form of key-value pairs. The keys and values of key-value pairs are all arbitrary objects, but keys often use

CocoaPods introduction, cocoapodsWhat is CocoaPods? Many third-party open-source libraries, such as JSONKit and AFNetWorking, are frequently used when you develop iOS applications. A class library may use other class libraries. to use it, you must

IOS xxx. pchInfo. plist and Prefix. pch File Location modification problems and solutions if you want to change Info. plist and Prefix. the actual path of the pch file, that is, the location of the actual file (not the Organization path in the

The layer mask attribute is used to achieve the animation effect gradually revealed. Github saw a good animation (https://github.com/rounak/RJImageLoader), so I want to achieve the following by myself do not know, this animation really does not

IOS obtains the Date value x minutes ago/x hours ago/yesterday/x days ago/x months ago/x years ago Returns x minutes ago/x hours ago/yesterday/x days ago/x months ago/x years ago    -(NSString *) timeInfo {return [NSDate timeInfoWithDate: self];} + (

IOS adds a control bar to the keyboard In iOS, the keyboard is frequently used. Sometimes you can add a control bar to the keyboard to conveniently switch or hide the keyboard in different input boxes. The specific implementation method is briefly

How to Use the iOS pspsimulator PPSSPP Many children's shoes like to play games on PSP. Do they need PSP devices? Now there is a very popular pspsimulator ppsSPP, not only on the computer, but also on the Android mobile phone Apple phone. The

Example of sliding switching between multiple table views in iOS development (similar to the "toutiao" client) and ios example For a long time, I haven't brought you anything to do With iOS development. Today I want to share with you an example of

Several value passing methods (attribute, proxy, block, Singleton, notification) and iosblock between iOS pagesHow does the second view controller obtain partial information of the first View Controller? For example, lable In the second interface

For iOS development, use keychain to save the user name and password   KeyChain is a secure method provided by Apple to store user names, passwords, and certificates. After sensitive information is stored in the keychain, the information will not be

9. The 9-palace Algorithm # Jiugongge computing ideas-Use the index of the control to calculate the row number and column number of the control.-Use the column number to calculate the x value of the control.-Use the row number to calculate the y